-
61 arc-proof switchboard
НКУ с защитой от воздействия электрической дуги
комплектное устройство с защитой от электрической дуги
низковольтное комплектное устройство с защитой от электрической дуги
НКУ распределения и управления с защитой от электрической дуги
-
[Интент]EN
arc-resistant switchgear
A type of switchgear design which is designed to withstand the effects of an internal arcing fault, without causing harm to personnel who are located in defined areas. It is not intended to withstand these internal arcing fault without possibly causing physical damage to the structure and/or components, but often the physical damage is less with an arc-resistant design.
There are three classes of protection:
Type A - eliminates the emission of gases and particles from the front of the switchgear during an internal arcing fault,
Type B - eliminates the emission of gases and particles from the front and sides of the switchgear during an internal arcing fault,
Type C - eliminates the emission of gases and particles from the front and sides of the switchgear, from between compartments within the same cell, and between adjacent cells during an internal arcing fault.
Arc-resistant switchgear has traditionally been metal-clad, but the basic concept could also be applied to other types of switchgear as well.
arc-proof switchgear
An incorrect term. Please refer to arc-resistant switchgear
[Schneider Electric]
[ http://electrical-engineering-portal.com/glossary-of-medium-voltage-switchgear-terms]Параллельные тексты EN-RU
If the electric arc occurs inside LV switchgear it generates internal overpressures and results in local overheatings which may cause high mechanical and thermal stresses in the equipment.
Besides, the involved materials can generate hot decomposition products, gases or fumes, which, due to the overpressure, are almost always ejected to the outside of the enclosure thus jeopardizing the operator safety.
The European Directive 2006/95/EC states the fundamental safety requirements for low voltage electric materials (from 50 V to 1000 V in alternating current, from 75 V to 1500 V in continuos current) to be put on the market within the European Community.
Among the essential safety requirements defined by this Directive particular importance is given to the need of taking technical measures to prevent “temperature rises, electric arcs or radiations which may result in hazards” from occurring.
This aspect has always been highly considered for apparatus, but it has been wrongly neglected for electrical switchgear and only in the last 10-15 years it has been catching on both at Italian as well as at international level.
Safety for the operator and for the installation in case of arcing inside LV switchgear can be obtained through three different design philosophies:
1. assemblies mechanically capable of withstanding the electric arc (passive protection)
2. assemblies equipped with devices limiting the effects of internal arcing (active protection)
3. assemblies equipped with current limiting circuitbreakers.
These three solutions (also combined together) have found a remakable development in the industrial field and have been successfully applied by the main manufacturers of LV switchgear and controlgear assemblies.
As it can be seen hereafter by examining the first two solutions, an “active” protection against arc faults is intrinsecally more complex than a “passive” one.
This because of the presence of additional electromechanical/ electronic devices5 which limit the arcing effects and which, by their nature, may be subject to faults or not-tripping.
[ABB]Дуга, возникшая внутри НКУ, создает внутреннее избыточное давление и вызывает локальный перегрев, что может привести к воздействию на оборудование значительного механического напряжения и перепада температур.
Кроме того, под воздействием дуги различные материалы разлагаются на продукты, имеющие высокую температуру, в том числе газы и дым, которые почти всегда вырываются из оболочки НКУ под высоким давлением, подвергая опасности оперативный персонал.
Европейская директива 2006/95/EC определяет основные требования безопасности для низковольтного (от 50 до 1000 В переменного тока и от 75 до 1500 В постоянного тока) оборудования поставляемого на рынок Европейского Сообщества.
Одно из основных требований безопасности, определяемое данной директивой как наиболее важное, заключается в необходимости предпринять технические меры для предотвращения "подъема температуры, возникновения электрической дуги или излучения", которые могут причинить ущерб.
Данная проблема всегда учитывалась при создании различных аппаратов, но незаслуженно игнорировалась при разработке электрических комплектных устройств, и только в последние 10-15 лет ей стали уделять должное внимание как в Италии, так и во всем мире.
При возникновении электрической дуги внутри НКУ безопасность оператора и электроустановки обеспечивается тремя способами:
1. Конструкция НКУ должна выдерживать механические воздействия, возникающие при горении электрической дуги (пассивная защита).
2. НКУ должно быть оснащено устройствами, ограничивающими воздействие электрической дуги (активная защита)
3. НКУ должны быть оснащены токоограничивающими автоматическими выключателями.
Указанные три способа (применяемые совместно) получили дальнейшее развитие в промышленности и успешно применяются основными изготовителями НКУ распределения и управления.
Как будет показано далее при рассмотрении первых двух способов, активная защита от дуговых» неисправностей является более сложной, чем пассивная защита.
Это объясняется необходимостью использования дополнительных электромеханических или электронных устройств, задачей которых является ограничение воздействий дуги и которые сами могут оказаться неисправными и не сработать.
[Перевод Интент]Тематики
- НКУ (шкафы, пульты,...)
Синонимы
- комплектное устройство с защитой от электрической дуги
- низковольтное комплектное устройство с защитой от электрической дуги
- НКУ распределения и управления с защитой от электрической дуги
EN
Англо-русский словарь нормативно-технической терминологии > arc-proof switchboard
-
62 arc-proof switchgear
НКУ с защитой от воздействия электрической дуги
комплектное устройство с защитой от электрической дуги
низковольтное комплектное устройство с защитой от электрической дуги
НКУ распределения и управления с защитой от электрической дуги
-
[Интент]EN
arc-resistant switchgear
A type of switchgear design which is designed to withstand the effects of an internal arcing fault, without causing harm to personnel who are located in defined areas. It is not intended to withstand these internal arcing fault without possibly causing physical damage to the structure and/or components, but often the physical damage is less with an arc-resistant design.
There are three classes of protection:
Type A - eliminates the emission of gases and particles from the front of the switchgear during an internal arcing fault,
Type B - eliminates the emission of gases and particles from the front and sides of the switchgear during an internal arcing fault,
Type C - eliminates the emission of gases and particles from the front and sides of the switchgear, from between compartments within the same cell, and between adjacent cells during an internal arcing fault.
Arc-resistant switchgear has traditionally been metal-clad, but the basic concept could also be applied to other types of switchgear as well.
arc-proof switchgear
An incorrect term. Please refer to arc-resistant switchgear
[Schneider Electric]
[ http://electrical-engineering-portal.com/glossary-of-medium-voltage-switchgear-terms]Параллельные тексты EN-RU
If the electric arc occurs inside LV switchgear it generates internal overpressures and results in local overheatings which may cause high mechanical and thermal stresses in the equipment.
Besides, the involved materials can generate hot decomposition products, gases or fumes, which, due to the overpressure, are almost always ejected to the outside of the enclosure thus jeopardizing the operator safety.
The European Directive 2006/95/EC states the fundamental safety requirements for low voltage electric materials (from 50 V to 1000 V in alternating current, from 75 V to 1500 V in continuos current) to be put on the market within the European Community.
Among the essential safety requirements defined by this Directive particular importance is given to the need of taking technical measures to prevent “temperature rises, electric arcs or radiations which may result in hazards” from occurring.
This aspect has always been highly considered for apparatus, but it has been wrongly neglected for electrical switchgear and only in the last 10-15 years it has been catching on both at Italian as well as at international level.
Safety for the operator and for the installation in case of arcing inside LV switchgear can be obtained through three different design philosophies:
1. assemblies mechanically capable of withstanding the electric arc (passive protection)
2. assemblies equipped with devices limiting the effects of internal arcing (active protection)
3. assemblies equipped with current limiting circuitbreakers.
These three solutions (also combined together) have found a remakable development in the industrial field and have been successfully applied by the main manufacturers of LV switchgear and controlgear assemblies.
As it can be seen hereafter by examining the first two solutions, an “active” protection against arc faults is intrinsecally more complex than a “passive” one.
This because of the presence of additional electromechanical/ electronic devices5 which limit the arcing effects and which, by their nature, may be subject to faults or not-tripping.
[ABB]Дуга, возникшая внутри НКУ, создает внутреннее избыточное давление и вызывает локальный перегрев, что может привести к воздействию на оборудование значительного механического напряжения и перепада температур.
Кроме того, под воздействием дуги различные материалы разлагаются на продукты, имеющие высокую температуру, в том числе газы и дым, которые почти всегда вырываются из оболочки НКУ под высоким давлением, подвергая опасности оперативный персонал.
Европейская директива 2006/95/EC определяет основные требования безопасности для низковольтного (от 50 до 1000 В переменного тока и от 75 до 1500 В постоянного тока) оборудования поставляемого на рынок Европейского Сообщества.
Одно из основных требований безопасности, определяемое данной директивой как наиболее важное, заключается в необходимости предпринять технические меры для предотвращения "подъема температуры, возникновения электрической дуги или излучения", которые могут причинить ущерб.
Данная проблема всегда учитывалась при создании различных аппаратов, но незаслуженно игнорировалась при разработке электрических комплектных устройств, и только в последние 10-15 лет ей стали уделять должное внимание как в Италии, так и во всем мире.
При возникновении электрической дуги внутри НКУ безопасность оператора и электроустановки обеспечивается тремя способами:
1. Конструкция НКУ должна выдерживать механические воздействия, возникающие при горении электрической дуги (пассивная защита).
2. НКУ должно быть оснащено устройствами, ограничивающими воздействие электрической дуги (активная защита)
3. НКУ должны быть оснащены токоограничивающими автоматическими выключателями.
Указанные три способа (применяемые совместно) получили дальнейшее развитие в промышленности и успешно применяются основными изготовителями НКУ распределения и управления.
Как будет показано далее при рассмотрении первых двух способов, активная защита от дуговых» неисправностей является более сложной, чем пассивная защита.
Это объясняется необходимостью использования дополнительных электромеханических или электронных устройств, задачей которых является ограничение воздействий дуги и которые сами могут оказаться неисправными и не сработать.
[Перевод Интент]Тематики
- НКУ (шкафы, пульты,...)
Синонимы
- комплектное устройство с защитой от электрической дуги
- низковольтное комплектное устройство с защитой от электрической дуги
- НКУ распределения и управления с защитой от электрической дуги
EN
Англо-русский словарь нормативно-технической терминологии > arc-proof switchgear
-
63 arc-resistant switchgear
НКУ с защитой от воздействия электрической дуги
комплектное устройство с защитой от электрической дуги
низковольтное комплектное устройство с защитой от электрической дуги
НКУ распределения и управления с защитой от электрической дуги
-
[Интент]EN
arc-resistant switchgear
A type of switchgear design which is designed to withstand the effects of an internal arcing fault, without causing harm to personnel who are located in defined areas. It is not intended to withstand these internal arcing fault without possibly causing physical damage to the structure and/or components, but often the physical damage is less with an arc-resistant design.
There are three classes of protection:
Type A - eliminates the emission of gases and particles from the front of the switchgear during an internal arcing fault,
Type B - eliminates the emission of gases and particles from the front and sides of the switchgear during an internal arcing fault,
Type C - eliminates the emission of gases and particles from the front and sides of the switchgear, from between compartments within the same cell, and between adjacent cells during an internal arcing fault.
Arc-resistant switchgear has traditionally been metal-clad, but the basic concept could also be applied to other types of switchgear as well.
arc-proof switchgear
An incorrect term. Please refer to arc-resistant switchgear
[Schneider Electric]
[ http://electrical-engineering-portal.com/glossary-of-medium-voltage-switchgear-terms]Параллельные тексты EN-RU
If the electric arc occurs inside LV switchgear it generates internal overpressures and results in local overheatings which may cause high mechanical and thermal stresses in the equipment.
Besides, the involved materials can generate hot decomposition products, gases or fumes, which, due to the overpressure, are almost always ejected to the outside of the enclosure thus jeopardizing the operator safety.
The European Directive 2006/95/EC states the fundamental safety requirements for low voltage electric materials (from 50 V to 1000 V in alternating current, from 75 V to 1500 V in continuos current) to be put on the market within the European Community.
Among the essential safety requirements defined by this Directive particular importance is given to the need of taking technical measures to prevent “temperature rises, electric arcs or radiations which may result in hazards” from occurring.
This aspect has always been highly considered for apparatus, but it has been wrongly neglected for electrical switchgear and only in the last 10-15 years it has been catching on both at Italian as well as at international level.
Safety for the operator and for the installation in case of arcing inside LV switchgear can be obtained through three different design philosophies:
1. assemblies mechanically capable of withstanding the electric arc (passive protection)
2. assemblies equipped with devices limiting the effects of internal arcing (active protection)
3. assemblies equipped with current limiting circuitbreakers.
These three solutions (also combined together) have found a remakable development in the industrial field and have been successfully applied by the main manufacturers of LV switchgear and controlgear assemblies.
As it can be seen hereafter by examining the first two solutions, an “active” protection against arc faults is intrinsecally more complex than a “passive” one.
This because of the presence of additional electromechanical/ electronic devices5 which limit the arcing effects and which, by their nature, may be subject to faults or not-tripping.
[ABB]Дуга, возникшая внутри НКУ, создает внутреннее избыточное давление и вызывает локальный перегрев, что может привести к воздействию на оборудование значительного механического напряжения и перепада температур.
Кроме того, под воздействием дуги различные материалы разлагаются на продукты, имеющие высокую температуру, в том числе газы и дым, которые почти всегда вырываются из оболочки НКУ под высоким давлением, подвергая опасности оперативный персонал.
Европейская директива 2006/95/EC определяет основные требования безопасности для низковольтного (от 50 до 1000 В переменного тока и от 75 до 1500 В постоянного тока) оборудования поставляемого на рынок Европейского Сообщества.
Одно из основных требований безопасности, определяемое данной директивой как наиболее важное, заключается в необходимости предпринять технические меры для предотвращения "подъема температуры, возникновения электрической дуги или излучения", которые могут причинить ущерб.
Данная проблема всегда учитывалась при создании различных аппаратов, но незаслуженно игнорировалась при разработке электрических комплектных устройств, и только в последние 10-15 лет ей стали уделять должное внимание как в Италии, так и во всем мире.
При возникновении электрической дуги внутри НКУ безопасность оператора и электроустановки обеспечивается тремя способами:
1. Конструкция НКУ должна выдерживать механические воздействия, возникающие при горении электрической дуги (пассивная защита).
2. НКУ должно быть оснащено устройствами, ограничивающими воздействие электрической дуги (активная защита)
3. НКУ должны быть оснащены токоограничивающими автоматическими выключателями.
Указанные три способа (применяемые совместно) получили дальнейшее развитие в промышленности и успешно применяются основными изготовителями НКУ распределения и управления.
Как будет показано далее при рассмотрении первых двух способов, активная защита от дуговых» неисправностей является более сложной, чем пассивная защита.
Это объясняется необходимостью использования дополнительных электромеханических или электронных устройств, задачей которых является ограничение воздействий дуги и которые сами могут оказаться неисправными и не сработать.
[Перевод Интент]Тематики
- НКУ (шкафы, пульты,...)
Синонимы
- комплектное устройство с защитой от электрической дуги
- низковольтное комплектное устройство с защитой от электрической дуги
- НКУ распределения и управления с защитой от электрической дуги
EN
Англо-русский словарь нормативно-технической терминологии > arc-resistant switchgear
-
64 control
1) управление; регулирование; регулировка || управлять; регулировать; задавать2) контроль; проверка || контролировать; проверять3) орган управления; орган регулировки, регулятор; орган настройки4) устройство управления; блок управления6) рукоятка или рычаг управления7) профилактические мероприятия, надзор•"operation is under control" — всё предусмотрено для нормальной работы;to gain control — вчт. получать управление:to go out of control — становиться неуправляемым;to operate ( to handle) the flight controls — оперировать органами управления полётом;to pass control — вчт. передавать управление;to return control — вчт. возвращать управление;to take over control — брать управление на себя;to transfer control — вчт. передавать управление-
cascaded control-
cathode control-
CO/O2 combustion control-
communications control-
computer control-
contactor-type control-
continuous-path control-
course gage control-
current-mode control-
dispatcher control-
focusing control-
holding control-
horizontal-frequency control-
hue range control-
long-distance control-
managerial control-
microprogramming control-
numerical program control-
on-off action control-
position-based control-
slide control-
step-by-step control-
time-pattern control -
65 control
управление; регулирование; контроль; орган [рычаг] управления; руль; pl. система управления или регулирования; управлять; регулироватьback seat flight control — управление ЛА из задней кабины [с места заднего лётчика]; pl. дублирующие органы управления в задней кабине
be out of control — терять управление [управляемость]; выходить из-под управления [контроля]
continuously variable thrust control — плавное [бесступенчатое] регулирование тяги
control c.g. control — регулирование центровки (ЛА)
control of missile attitude — стабилизация ракеты; управление пространственным положением ракеты
control of the air — превосходство или господство в воздухе; превосходство в области авиации [в авиационной технике]; контроль воздушного пространства
control of the yoke — разг. управление штурвалом
control of thrust orientation — управление ориентированием [направлением вектора] тяги
flight deck lighting controls — органы управления [ручки регулировки] освещением кабины экипажа
fling the controls over — перебрасывать органы управления (в противоположную сторону),
flow control with altitude compensation — регулятор расхода [подачи] с высотным корректором
fuel dump valve control — кран [рычаг крана] аварийного слива топлива
gas jet attitude control — управление пространственным положением с помощью системы газоструйных рулей
go out of control — терять управление, выходить из-под управления [контроля]
ground rollout rudder steering control — управление пробегом [на пробеге] с помощью руля направления
interconnected fuel and propeller controls — объединённая система регулирования подачи топлива и шага винта
jet tab thrust vector control — управление вектором тяги с помощью газовых рулей; дефлекторное управление вектором тяги
jet(-deflection, -direction) control — реактивное [струйное] управление; управление изменением направления тяги; струйный руль
manual mixture shut-off control — рычаг отсечки подачи горючей смеси, рычаг останова [выключения] двигателя
maximum boundary layer control — управление пограничным слоем при наибольшей эффективности [производительности, интенсивности работы] системы
recover the control — восстанавливать управление [управляемость]
respond to the controls — реагировать [отвечать] на отклонение рулей [органов управления]
space shuttle orbiter control — управление орбитальной ступенью челночного воздушно-космического аппарата
throttle and collective pitch control — верт. рычаг «шаг — газ»
-
66 coefficient
1) коэффициент; множитель2) фактор3) константа, постоянная•-
absorption coefficient
-
accommodation coefficient
-
acidity coefficient
- acoustic absorption coefficient -
actinic coefficient
-
adhesion coefficient
-
adiabatic Hall coefficient
-
admiralty coefficient
-
aerosol extinction coefficient
-
air drag coefficient
-
air-to-air heat-transmission coefficient
-
angular coefficient
-
aridity coefficient
-
attenuation coefficient
-
autocorrelation coefficient
-
binomial coefficient
-
block coefficient
-
breadth coefficient
-
brightness coefficient
-
bubble volume coefficient
-
Callier coefficient
-
capacitance coefficients
-
chromatic coefficient
-
chromaticity coefficients
-
coefficient of active lateral earth pressure
-
coefficient of amplification
-
coefficient of charge
-
coefficient of collar friction
-
coefficient of compressibility
-
coefficient of consolidation
-
coefficient of correlation
-
coefficient of cubical expansion
-
coefficient of deformation
-
coefficient of discharge
-
coefficient of efficiency
-
coefficient of elasticity
-
coefficient of electrostatic induction
-
coefficient of expansion
-
coefficient of floating route filling
-
coefficient of friction of rest
-
coefficient of friction
-
coefficient of harmonic distortion
-
coefficient of hysteresis
-
coefficient of induction
-
coefficient of internal friction
-
coefficient of jam compactness
-
coefficient of journal friction
-
coefficient of kinematic viscosity
-
coefficient of kinetic friction
-
coefficient of linear expansion
-
coefficient of magnetization
-
coefficient of mutual inductance
-
coefficient of mutual overlap
-
coefficient of performance
-
coefficient of pivoting friction
-
coefficient of proportionality
-
coefficient of radiation
-
coefficient of raft section density
-
coefficient of regression
-
coefficient of resistance
-
coefficient of restitution
-
coefficient of rigidity
-
coefficient of rolling friction
-
coefficient of rotation
-
coefficient of self-induction
-
coefficient of sliding friction
-
coefficient of slip
-
coefficient of static friction
-
coefficient of strain
-
coefficient of surface expansion
-
coefficient of thermal efficiency
-
coefficient of thermal expansion
-
coefficient of total drag
-
coefficient of utilization
-
coefficient of variation
-
coefficient of volume change
-
combined convection and radiation coefficient
-
combustion rate coefficient
-
condensing coefficient
-
conductance coefficient
-
confidence coefficient
-
contraction coefficient
-
contrast coefficient
-
convection coefficient
-
corrosion coefficient
-
coupling coefficient
-
crest coefficient
-
cross-correlation coefficient
-
current temperature coefficient
-
damping coefficient
-
deadweight-displacement coefficient
-
deadweight coefficient
-
decay coefficient
-
deflection coefficient
-
demagnetization coefficient
-
derailment coefficient
-
dielectric coefficient
-
dielectric loss coefficient
-
diffusion coefficient
-
dilution coefficient
-
discharge coefficient
-
dispersion coefficient
-
dissipation coefficient
-
distortion coefficient
-
distribution coefficient
-
drag coefficient
-
drying coefficient
-
efflux coefficient
-
elastooptic coefficient
-
electrochemical diffusion coefficient
-
electrochemical transfer coefficient
-
electrooptic coefficient
-
emissivity coefficient
-
empirically determined coefficient
-
energy-transfer coefficient
-
excess coefficient
-
extinction coefficient
-
filtration coefficient
-
flow coefficient
-
flux coefficient
-
Fourier coefficient
-
friction coefficient
-
gap coefficient
-
gas-phase mass-transfer coefficient
-
gas-side mass-transfer coefficient
-
growth coefficient
-
H0 coefficient
-
heat conduction coefficient
-
heat-transfer coefficient
-
highest coefficient
-
humidity coefficient
-
hyetal coefficient
-
hygroscopic coefficient
-
impregnation coefficient
-
integral coefficient
-
interassembly moderator coefficient
-
interdiffusion coefficient
-
intraassembly moderator coefficient
-
ionic activity coefficient
-
ionic distribution coefficient
-
ionization coefficient
-
Joule-Thomson coefficient
-
Lagrangian coefficients
-
leading coefficient
-
lift coefficient
-
linear attenuation coefficient
-
linear expansion coefficient
-
lines coefficients
-
literal coefficient
-
load reflection coefficient
-
local heat-transfer coefficient
-
local mass-transfer coefficient
-
loss coefficient
-
magnetooptic coefficient
-
mass coefficient of reactivity
-
mass energy absorption coefficient
-
mass-transfer coefficient
-
midship-section coefficient
-
midship coefficient
-
molecular diffusion coefficient
-
negative temperature coefficient of reactivity
-
noise reduction coefficient
-
nondimensional coefficient
-
nonlinear-distortions coefficient
-
numerical coefficient
-
numeric coefficient
-
optical loss coefficient
-
orifice coefficient
-
output reflection coefficient
-
overall heat transfer coefficient
-
overall mass transfer coefficient
-
pan-to-lake coefficient
-
permeability coefficient
-
permeance coefficient
-
phase-change coefficient
-
phase coefficient
-
phase-temperature coefficient
-
pitch coefficient
-
plastic anisotropy coefficient
-
pluviometric coefficient
-
polytropic coefficient
-
potential coefficient
-
pressure coefficient of viscosity
-
pressure/viscosity coefficient
-
prismatic coefficient
-
programming coefficient
-
propagation coefficient
-
propulsive coefficient
-
purity coefficient
-
quasi-propulsive coefficient
-
radiant heat-transfer coefficient
-
Rankine's coefficient
-
reactivity coefficient
-
recombination coefficient
-
reflection coefficient
-
refraction coefficient
-
relative friction coefficient
-
reliability coefficient
-
reset coefficient
-
roughness coefficient
-
runoff coefficient
-
salting-out coefficient
-
sample correlation coefficient
-
saturation coefficient
-
SAW coupling coefficient
-
scattering coefficient
-
screening coefficient
-
sedimentation coefficient
-
self-diffusion coefficient
-
shear coefficient
-
similarity coefficient
-
slip coefficient
-
solubility coefficient
-
sound absorption coefficient
-
sound reflection coefficient
-
sound transmission coefficient
-
steady friction coefficient
-
steady-flow coefficient
-
stick-slip friction coefficient
-
stiffness coefficient
-
strain-hardening coefficient
-
stress-optical coefficient
-
technical readiness coefficient
-
temperature coefficient
-
thermal accommodation coefficient
-
thermal coefficient
-
thermal diffusion coefficient
-
thermal-conductivity coefficient
-
thermal-expansion coefficient
-
thermodiffusion coefficient
-
thermodynamic coefficient
-
thermoelectric coefficient
-
throttling coefficient
-
thrust coefficient
-
tip diffraction coefficient
-
torque coefficient
-
total diffusion coefficient
-
traction coefficient
-
transfer coefficient
-
transmission coefficient
-
transport coefficient
-
trichromatic coefficients
-
trilinear coefficients
-
tristimulus coefficients
-
undetermined coefficient
-
uniform heat transfer coefficient
-
uniformity coefficient
-
unsaturated coefficient
-
void coefficient
-
voltage temperature coefficient
-
volumetric coefficient of thermal expansion
-
wall coefficient
-
water-land coefficient
-
waterplane area coefficient
-
waterplane coefficient
-
weighting coefficient
-
weight coefficient
-
well imperfection coefficient
-
winding coefficient
-
wobble coefficient -
67 gage
1) средство (для) измерений; (контрольно-)измерительный прибор; измеритель; (контрольно-)измерительный инструмент; измерительное устройство || измерять2) калибр; мера; размер; сортамент; толщина ( листового металла); диаметр ( проволоки или винта)3) поверять; калибровать; градуировать4) шаблон; лекало5) эталон6) датчик, (первичный) измерительный преобразователь7) манометр; вакуумметр, вакуумный манометр8) гидр. уровнемер; водомер10) матем. калибр ( топологического пространства)11) номер сита12) маяк, правило ( при устройстве асфальтобетонного или бетонного покрытия)13) рейсмус || размечать с помощью рейсмуса16) колея, ширина колеи18) гейч ( вязальной машины)19) класс ( трикотажной машины)•to encase strain gage in cement — изготавливать тензодатчик в плёнке клея;to keep material on gage — поддерживать параметры материала (напр. толщину) в заданных пределах;to mount strain gage — устанавливать тензодатчик;to reverse a gage — менять меру (напр. длины) концами;gage with metric scale — индикатор с метрической шкалой-
absolute gage
-
absolute vacuum gage
-
acceptance gage
-
accumulative precipitation gage
-
acoustical strain gage
-
acoustic strain gage
-
active strain gage
-
adjustable gage
-
adjustable rail gage
-
adjuster gage
-
adzing gage
-
AE gage
-
Agir water gage
-
air filter vacuum gage
-
air gage
-
air pressure gage
-
air restriction gage
-
air-operated gage
-
alarm pressure gage
-
alcohol gage
-
American wire gage
-
angular gage
-
auxiliary staff gage
-
back gage
-
ball gage
-
ball plug gage
-
battery gage
-
Bayard-Alpert gage
-
bayonet gage
-
bellows gage
-
belt strand tension gage
-
bench gage
-
beta-absorption gage
-
beta gage
-
Birmingham wire gage
-
block gage
-
bonded strain gage
-
bottom-hole pressure gage
-
Bourdon pressure gage
-
box gage
-
brine gage
-
broad based depth gage
-
broad gage
-
bubble gage
-
buoyant-element level gage
-
butt gage
-
caliper gage
-
cap gage
-
capacitance strain gage
-
capacitance gage
-
center gage
-
charge gage
-
check gage
-
circumferential strain gage
-
clapboard gage
-
clearance gage
-
cold-cathode ionization gage
-
Collins flow gage
-
comb gage
-
combination gage
-
combined pressure gage
-
compression gage
-
concentricity gage
-
consistency gage
-
contact gage
-
contact pressure gage
-
contour gage
-
control gage
-
convergence gage
-
counter gage
-
crankshaft gage
-
curve gage
-
cutting gage
-
damped pressure gage
-
deadweight gage
-
deep-sea tsunami gage
-
density gage
-
depth gage
-
dew gage
-
dial bore gage
-
dial gage
-
diametral gage
-
diaphragm pressure gage
-
differential pressure gage
-
differential vacuum gage
-
digital pressure gage
-
digital weighing gage
-
dimension gage
-
direct pressure gage
-
direct-measuring gage
-
direct-reading gage
-
discharge gage
-
downhole casing wall thickness gage
-
draft gage
-
drainage gage
-
draught gage
-
drift diameter pipe gage
-
drilling bit gage
-
dual boost gage
-
dummy strain gage
-
edge-reading gage
-
elastic-element pressure gage
-
electrical resistance strain gage
-
electrical strain gage
-
electrical temperature gage
-
electrically heated snow gage
-
electrical-type strain gage
-
electromagnetic strain gage
-
end gage
-
engine coolant level gage
-
evapotranspiration gage
-
extended track position gage
-
external gage
-
external strain gage
-
fast-response gage
-
fast gage
-
feeler gage
-
female gage
-
fillet gage
-
film gage
-
fixed river gage
-
flat-ended gage
-
flatness gage
-
flexible gage
-
float gage
-
flood gage
-
flow gage
-
flowmeter pressure gage
-
fluid content gage
-
foil strain gage
-
force gage
-
force-feedback gage
-
frame gage
-
free-piston gage
-
fuel level gage
-
fuel pressure gage
-
fuel quantity gage
-
gamma-absorption gage
-
gap gage
-
gas density gage
-
gas gage
-
gasoline gage
-
general-purpose pressure gage
-
glass gage
-
go gage
-
go-no-go gage
-
grinding gage
-
grouser height depth gage
-
hardness gage
-
high-water gage
-
hook gage
-
horseshoe gage
-
hose skiving gage
-
hot-cathode ionization gage
-
hot-cathode magnetron gage
-
inclined staff gage
-
indentation depth gage
-
indicating gage
-
inductance strain gage
-
industrial gage
-
inprocess gage
-
inside gage
-
inspection gage
-
integral pressure gage
-
internal gage
-
ionization gage
-
ion gage
-
ionization pressure gage
-
irradiated fuel assay gage
-
jaw gage
-
Johansson gage
-
joint clearance gage
-
keyway gage
-
Knudsen gage
-
laser gage
-
laser rain gage
-
lead gage
-
length gage
-
level difference gage
-
level gage
-
lever gage
-
lever-type piston gage
-
limit gage
-
limit plug gage
-
line gage
-
line space gage
-
liquid level gage
-
loading gage
-
low-water gage
-
magnetron gage
-
male gage
-
manometer gage
-
marking gage
-
master gage
-
McLeod gage
-
mechanical pressure gage
-
mechanical strain gage
-
mechanical temperature gage
-
mercurial gage
-
metal-film strain gage
-
metric gage
-
micrometer gage
-
micropressure gage
-
milk gage
-
modulator ionization gage
-
moire strain gage
-
molecular gage
-
mortise gage
-
multichecking indicator gage
-
must gage
-
narrow gage
-
needle gage
-
no-go gage
-
noncontact gage
-
normal gage
-
nude gage
-
nude-ion gage
-
oil circulation gage
-
oil gage
-
oil pressure gage
-
oil temperature gage
-
oil-depth gage
-
optical flat gage
-
optical rain gage
-
optical strain gage
-
packing gage
-
paper gage
-
paper sheet gage
-
paper-backed strain gage
-
parallel slip gage
-
partial pressure gage
-
partial-pressure vacuum gage
-
Penning pressure gage
-
perforation gage
-
petrol gage
-
Philips gage
-
photoelastic strain gage
-
piezoelectric strain gage
-
piezoresistive strain gage
-
pin gage
-
pipe gage
-
Pirani gage
-
piston gage
-
pit rain gage
-
Pitot tube gage
-
Pitot gage
-
plug gage
-
pneumatic gage
-
pneumatic strain gage
-
point gage
-
pointer gage
-
position gage
-
postprocess gage
-
postyield strain gage
-
precipitation gage
-
precision gage
-
pressure gage
-
pressure tide gage
-
pressure-recording gage
-
pressure-vacuum compound recording gage
-
pressure-vacuum gage
-
primary gage
-
production gage
-
profile gage
-
quartz gage
-
radioactive gage
-
radioactive ionization gage
-
radioisotope snow gage
-
radiometer pressure gage
-
radiometer vacuum gage
-
radius gage
-
rail gage
-
rain gage
-
recording rain gage
-
Redhead gage
-
reed gage
-
reference gage
-
reference water gage
-
regular pressure gage
-
remote rain gage
-
resistance strain gage
-
resistivity gage
-
resonance gage
-
retracted track position gage
-
reuse gage
-
ring gage
-
ring seal gage
-
river gage
-
rod gage
-
rosette-type strain gage
-
roundness gage
-
rubber gage
-
sagitta gage
-
sampling gage
-
saw gage
-
screw pitch gage
-
sea gage
-
section gage
-
sectional staff gage
-
seepage gage
-
self-balancing strain gage
-
self-temperature-compensating gage
-
semiconductor strain gage
-
setting gage
-
setup gage
-
sheet metal gage
-
sheet gage
-
shifting gage
-
siding gage
-
sight gage
-
sight level gage
-
silphon gage
-
single-end gage
-
single-head gage
-
size gage
-
slanting hole rain gage
-
slant-tube gage
-
slide gage
-
slip gage
-
sloping gage
-
slur gage
-
smoke gage
-
snap gage
-
snow gage
-
snow-depth gage
-
snow-drift gage
-
soil rain gage
-
sonic gage
-
spherical-ended gage
-
spherical-piston gage
-
spindle-mounted strain gage
-
spindle strain gage
-
staff gage
-
stage gage
-
standard gage
-
standard test gage
-
standard wire gage
-
stepped plug gage
-
strain gage
-
stream gage
-
stress gage
-
strip gage
-
subsurface water gage
-
suction gage
-
suppressor ionization gage
-
surface finish gage
-
surface gage
-
Swedish gage
-
tank-level gage
-
tank gage
-
taper gage
-
temperature gage
-
template gage
-
test gage
-
thermal conductivity gage
-
thermal gage
-
thermistor gage
-
thermistor vacuum gage
-
thermocouple vacuum gage
-
thickness dial gage
-
thickness gage
-
thread gage
-
tide gage
-
tilt and runout gage
-
tipping-bucket rain gage
-
tire depth gage
-
toe-in gage
-
tong torque gage
-
tool-setting gage
-
totalizer precipitation gage
-
totalizer rain gage
-
track gage
-
track pitch gage
-
track sag gage
-
transducer gage
-
tread depth gage
-
tubing gage
-
type-high gage
-
unbonded strain gage
-
unpacked-piston gage
-
U-tube gage
-
vacuum gage
-
vacuum ionization gage
-
vacuum pressure gage
-
vacuum-backed piston gage
-
valve lash gage
-
velocity gage
-
vernier depth gage
-
vernier height gage
-
vernier-caliper gage
-
viscosity gage
-
visual-indicating gage
-
volt gage
-
water level gage
-
wave gage
-
wear-and-tear gage
-
weather gage
-
weighing-type rain and snow gage
-
weir gage
-
weldable strain gage
-
wide gage
-
wind gage
-
wine-level gage
-
wire feeler gage
-
wire gage
-
wire strain gage
-
wire-weight gage
-
working gage
-
X-ray gage
-
X-ray thickness gage -
68 IAT
1) Военный термин: Initial Acceptance Test, Institute for Advanced Technology, Intelligence Augmentation Team, individual acceptance tests2) Техника: indicated air temperature, information assessment team, inside air temperature, integrated avionics test3) Юридический термин: Intervention Assistance Team4) Автомобильный термин: intake air temperature, intake air temperature - температура поступающего воздуха5) Ветеринария: Institute of Animal Technology6) Телекоммуникации: Integrated Access Terminal7) Сокращение: Induction Air Temperature, Institute of Advanced Technology (USA), International Aerospace Technologies, Dr (Baumeister KG (Germany))8) Университет: Implicit Association Test, Instructor Authorization Test9) Вычислительная техника: Information Access Technology (Provider)10) Транспорт: Inter Arrival Time, Internal Air Transport11) Воздухоплавание: International Automatic Time12) Контроль качества: individual acceptance test13) Макаров: International Atomic Time, International Atomic Time, TAI14) Расширение файла: Import Address Table -
69 system
система; установка; устройство; ркт. комплекс"see to land" system — система посадки с визуальным приземлением
A.S.I. system — система указателя воздушной скорости
ablating heat-protection system — аблирующая [абляционная] система тепловой защиты
ablating heat-shield system — аблирующая [абляционная] система тепловой защиты
active attitude control system — ксм. активная система ориентации
aft-end rocket ignition system — система воспламенения заряда с задней части РДТТ [со стороны сопла]
aircraft response sensing system — система измерений параметров, характеризующих поведение ЛА
air-inlet bypass door system — дв. система перепуска воздуха на входе
antiaircraft guided missile system — ракетная система ПВО; зенитный ракетный комплекс
antiaircraft guided weapons system — ракетная система ПВО; зенитный ракетный комплекс
attenuated intercept satellite rendez-vous system — система безударного соединения спутников на орбите
attitude and azimuth reference system — система измерения или индикации углов тангажа, крена и азимута
automatic departure prevention system — система автоматического предотвращения сваливания или вращения после сваливания
automatic drift kick-off system — система автоматического устранения угла упреждения сноса (перед приземлением)
automatic hovering control system — верт. система автостабилизации на висении
automatic indicating feathering system — автоматическая система флюгирования с индикацией отказа (двигателя)
automatic mixture-ratio control system — система автоматического регулирования состава (топливной) смеси
automatic pitch control system — автомат тангажа; автоматическая система продольного управления [управления по каналу тангажа]
B.L.C. high-lift system — система управления пограничным слоем для повышения подъёмной силы (крыла)
backpack life support system — ксм. ранцевая система жизнеобеспечения
beam-rider (control, guidance) system — ркт. система наведения по лучу
biowaste electric propulsion system — электрический двигатель, работающий на биологических отходах
buddy (refueling, tank) system — (подвесная) автономная система дозаправки топливом в полете
closed(-circuit, -cycle) system — замкнутая система, система с замкнутым контуром или циклом; система с обратной связью
Cooper-Harper pilot rating system — система баллов оценки ЛА лётчиком по Куперу — Харперу
deployable aerodynamic deceleration system — развёртываемая (в атмосфере) аэродинамическая тормозная система
depressurize the fuel system — стравливать избыточное давление (воздуха, газа) в топливной системе
driver gas heating system — аэрд. система подогрева толкающего газа
dry sump (lubrication) system — дв. система смазки с сухим картером [отстойником]
electrically powered hydraulic system — электронасосная гидросистема (в отличие от гидросистемы с насосами, приводимыми от двигателя)
exponential control flare system — система выравнивания с экспоненциальным управлением (перед приземлением)
flywheel attitude control system — ксм. инерционная система ориентации
gas-ejection attitude control system — ксм. газоструйная система ориентация
gas-jet attitude control system — ксм. газоструйная система ориентация
ground proximity extraction system — система извлечения грузов из самолёта, пролетающего на уровне земли
hot-air balloon water recovery system — система спасения путем посадки на воду с помощью баллонов, наполняемых горячими газами
hypersonic air data entry system — система для оценки аэродинамики тела, входящего в атмосферу планеты с гиперзвуковой скоростью
igh-temperature fatigue test system — установка для испытаний на выносливость при высоких температурах
interceptor (directing, vectoring) system — система наведения перехватчиков
ion electrical propulsion system — ксм. ионная двигательная установка
isotope-heated catalytic oxidizer system — система каталитического окислителя с нагревом от изотопного источника
jet vane actuation system — ркт. система привода газового руля
laminar flow pumping system — система насосов [компрессоров] для ламинаризации обтекания
launching range safety system — система безопасности ракетного полигона; система обеспечения безопасности космодрома
leading edge slat system — система выдвижных [отклоняемых] предкрылков
low-altitude parachute extraction system — система беспосадочного десантирования грузов с малых высот с использованием вытяжных парашютов
magnetic attitude control system — ксм. магнитная система ориентации
magnetically slaved compass system — курсовая система с магнитной коррекцией, гироиндукционная курсовая система
mass-expulsion attitude control system — система ориентации за счёт истечения массы (газа, жидкости)
mass-motion attitude control system — ксм. система ориентации за счёт перемещения масс
mass-shifting attitude control system — ксм. система ориентации за счёт перемещения масс
monopropellant rocket propulsion system — двигательная установка с ЖРД на унитарном [однокомпонентном] топливе
nucleonic propellant gauging and utilization system — система измерения и регулирования подачи топлива с использованием радиоактивных изотопов
open(-circuit, -cycle) system — открытая [незамкнутая] система, система с незамкнутым контуром или циклом; система без обратной связи
plenum chamber burning system — дв. система сжигания топлива во втором контуре
positioning system for the landing gear — система регулирования высоты шасси (при стоянке самолёта на земле)
radar altimeter low-altitude control system — система управления на малых высотах с использованием радиовысотомера
radar system for unmanned cooperative rendezvous in space — радиолокационная система для обеспечения встречи (на орбите) беспилотных кооперируемых КЛА
range and orbit determination system — система определения дальностей [расстояний] и орбит
real-time telemetry processing system — система обработки радиотелеметрических данных в реальном масштабе времени
recuperative cycle regenerable carbon dioxide removal system — система удаления углекислого газа с регенерацией поглотителя, работающая по рекуперативному циклу
rendezvous beacon and command system — маячно-командная система обеспечения встречи («а орбите)
satellite automatic terminal rendezvous and coupling system — автоматическая система сближения и стыковки спутников на орбите
Schuler tuned inertial navigation system — система инерциальной навигации на принципе маятника Шулера
sodium superoxide carbon dioxide removal system — система удаления углекислого газа с помощью надперекиси натрия
space shuttle separation system — система разделения ступеней челночного воздушно-космического аппарата
stellar-monitored astroinertial navigation guidance system — астроинерциальная система навигации и управления с астрокоррекцией
terminal control landing system — система управления посадкой по траектории, связанной с выбранной точкой приземления
terminal descent control system — ксм. система управления на конечном этапе спуска [снижения]
terminal guidance system for a satellite rendezvous — система управления на конечном участке траектории встречи спутников
test cell flow system — ркт. система питания (двигателя) топливом в огневом боксе
vectored thrust (propulsion) system — силовая установка с подъёмно-маршевым двигателем [двигателями]
water to oxygen system — ксм. система добывания кислорода из воды
wind tunnel data acquisition system — система регистрации (и обработки) данных при испытаниях в аэродинамической трубе
— D system -
70 Carnot, Nicolas Léonard Sadi
SUBJECT AREA: Steam and internal combustion engines[br]b. 1 June 1796 Paris, Franced. 24 August 1831 Paris, France[br]French laid the foundations for modern thermodynamics through his book Réflexions sur la puissance motrice du feu when he stated that the efficiency of an engine depended on the working substance and the temperature drop between the incoming and outgoing steam.[br]Sadi was the eldest son of Lazare Carnot, who was prominent as one of Napoleon's military and civil advisers. Sadi was born in the Palais du Petit Luxembourg and grew up during the Napoleonic wars. He was tutored by his father until in 1812, at the minimum age of 16, he entered the Ecole Polytechnique to study stress analysis, mechanics, descriptive geometry and chemistry. He organized the students to fight against the allies at Vincennes in 1814. He left the Polytechnique that October and went to the Ecole du Génie at Metz as a student second lieutenant. While there, he wrote several scientific papers, but on the Restoration in 1815 he was regarded with suspicion because of the support his father had given Napoleon. In 1816, on completion of his studies, Sadi became a second lieutenant in the Metz engineering regiment and spent his time in garrison duty, drawing up plans of fortifications. He seized the chance to escape from this dull routine in 1819 through an appointment to the army general staff corps in Paris, where he took leave of absence on half pay and began further courses of study at the Sorbonne, Collège de France, Ecole des Mines and the Conservatoire des Arts et Métiers. He was inter-ested in industrial development, political economy, tax reform and the fine arts.It was not until 1821 that he began to concentrate on the steam-engine, and he soon proposed his early form of the Carnot cycle. He sought to find a general solution to cover all types of steam-engine, and reduced their operation to three basic stages: an isothermal expansion as the steam entered the cylinder; an adiabatic expansion; and an isothermal compression in the condenser. In 1824 he published his Réflexions sur la puissance motrice du feu, which was well received at the time but quickly forgotten. In it he accepted the caloric theory of heat but pointed out the impossibility of perpetual motion. His main contribution to a correct understanding of a heat engine, however, lay in his suggestion that power can be produced only where there exists a temperature difference due "not to an actual consumption of caloric but to its transportation from a warm body to a cold body". He used the analogy of a water-wheel with the water falling around its circumference. He proposed the true Carnot cycle with the addition of a final adiabatic compression in which motive power was con sumed to heat the gas to its original incoming temperature and so closed the cycle. He realized the importance of beginning with the temperature of the fire and not the steam in the boiler. These ideas were not taken up in the study of thermodynartiics until after Sadi's death when B.P.E.Clapeyron discovered his book in 1834.In 1824 Sadi was recalled to military service as a staff captain, but he resigned in 1828 to devote his time to physics and economics. He continued his work on steam-engines and began to develop a kinetic theory of heat. In 1831 he was investigating the physical properties of gases and vapours, especially the relationship between temperature and pressure. In June 1832 he contracted scarlet fever, which was followed by "brain fever". He made a partial recovery, but that August he fell victim to a cholera epidemic to which he quickly succumbed.[br]Bibliography1824, Réflexions sur la puissance motrice du feu; pub. 1960, trans. R.H.Thurston, New York: Dover Publications; pub. 1978, trans. Robert Fox, Paris (full biographical accounts are provided in the introductions of the translated editions).Further ReadingDictionary of Scientific Biography, 1971, Vol. III, New York: C.Scribner's Sons. T.I.Williams (ed.), 1969, A Biographical Dictionary of Scientists, London: A. \& C.Black.Chambers Concise Dictionary of Scientists, 1989, Cambridge.D.S.L.Cardwell, 1971, from Watt to Clausius. The Rise of Thermodynamics in the Early Industrial Age, London: Heinemann (discusses Carnot's theories of heat).RLHBiographical history of technology > Carnot, Nicolas Léonard Sadi
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71 crack
1. растрескиваться, трескаться; давать трещины; расщепляться, разрушаться2. трещина, щель, расселина, раскол3. крекировать— quenching crack
* * *
* * *
трещина, щель, расселина
* * *
1) растрескиваться, трескаться; давать трещины; расщепляться, разрушаться2) трещина; щель; расселина; раскол3) крекировать•- branching crack
- cooling crack
- corrosion crack
- corrosion-fatigue crack
- cross crack
- endurance crack
- external crack
- fatigue crack
- flake crack
- hair crack
- hairline crack
- heat-treatment crack
- horizontal crack
- hot-short crack
- incipient crack
- internal crack
- longitudinal crack
- low-temperature crack
- natural crack
- nonbranched crack
- nonextending crack
- nonpropagating crack
- root crack
- service crack
- shear crack
- shrinkage crack
- strain crack
- through crack
- vertical crack
- weld crack* * *• 1) взломать; 2) раскалываться• раскол• трещина -
72 IT
1) Общая лексика: информатизация, The Injury Triangle2) Компьютерная техника: Indent Tab, Is There, информационная технология3) Медицина: инсулинотерапия4) Военный термин: Immediate Transient Incapacitation Dose, Improved TARTAR, Information transport, Innovative Tests, Inspector of Trooping, Institute of Technology, Interoperability Testing, ignition temperature, imaging techniques, immediate transient, immediate transportation, improved technology, individual training, infantry training, initial track, innovative technology, inspection tag, instruction tag, integrating testing, interrogator-transponder, inventory transfer, item transfer5) Техника: identification transponder, independent testing, instrument test, intelligent terminal, interdigital transistor, interfering transmitter, inverse-time6) Сельское хозяйство: immunotherapy7) Математика: индуцированная топология (induced topology), теория информации (information theory)8) Политика: Italy9) Телекоммуникации: Information Type10) Сокращение: Information Technology (e.g., "IT-21, Information Technology for the 21st century"), Instruction Technique, Intermediate Trainer, Italy (NATO country code), income tax, Iran Time (GMT + 0300), Industrial Technology, Inspection Test, Inter-digital Transistor, intrathecal11) Физиология: Individual therapy, Inhalation Therapy, Intensive Therapy12) Вычислительная техника: input translator, internal translator, Iran Time (+0300, TZ), информационная техника, передача информации13) Нефть: information technology, приёмочные испытания (inspection test)14) Биохимия: Intratracheal15) Фирменный знак: Imagination Technology, Itt16) Бурение: натяжение на поверхности раздела (interfacial tension)17) Глоссарий компании Сахалин Энерджи: neutral isolated, casing grounded, контроль при загрузке (initialization testing)18) Сетевые технологии: information transfer19) ЕБРР: Information Technology Department20) Полимеры: interfacial tension21) Контроль качества: initial tolerance22) Сахалин Р: initialization testing23) Медицинская техника: intimal thickening (ЭхоКГ)24) Химическое оружие: identifying tag25) Макаров: initial deformation temperature, interdigitated transistor, internal thread, international tolerance, isomeric transition26) Безопасность: Information Trickery27) Расширение файла: Music (Impulse Tracker), Settings (intalk)28) МИД: Information and Communication Technology, (Information and Communication Technology) ИТ (информационно-коммуникационные технологии)29) Электротехника: instrument transformer, insulating transformer31) СМС: Is The -
73 It
1) Общая лексика: информатизация, The Injury Triangle2) Компьютерная техника: Indent Tab, Is There, информационная технология3) Медицина: инсулинотерапия4) Военный термин: Immediate Transient Incapacitation Dose, Improved TARTAR, Information transport, Innovative Tests, Inspector of Trooping, Institute of Technology, Interoperability Testing, ignition temperature, imaging techniques, immediate transient, immediate transportation, improved technology, individual training, infantry training, initial track, innovative technology, inspection tag, instruction tag, integrating testing, interrogator-transponder, inventory transfer, item transfer5) Техника: identification transponder, independent testing, instrument test, intelligent terminal, interdigital transistor, interfering transmitter, inverse-time6) Сельское хозяйство: immunotherapy7) Математика: индуцированная топология (induced topology), теория информации (information theory)8) Политика: Italy9) Телекоммуникации: Information Type10) Сокращение: Information Technology (e.g., "IT-21, Information Technology for the 21st century"), Instruction Technique, Intermediate Trainer, Italy (NATO country code), income tax, Iran Time (GMT + 0300), Industrial Technology, Inspection Test, Inter-digital Transistor, intrathecal11) Физиология: Individual therapy, Inhalation Therapy, Intensive Therapy12) Вычислительная техника: input translator, internal translator, Iran Time (+0300, TZ), информационная техника, передача информации13) Нефть: information technology, приёмочные испытания (inspection test)14) Биохимия: Intratracheal15) Фирменный знак: Imagination Technology, Itt16) Бурение: натяжение на поверхности раздела (interfacial tension)17) Глоссарий компании Сахалин Энерджи: neutral isolated, casing grounded, контроль при загрузке (initialization testing)18) Сетевые технологии: information transfer19) ЕБРР: Information Technology Department20) Полимеры: interfacial tension21) Контроль качества: initial tolerance22) Сахалин Р: initialization testing23) Медицинская техника: intimal thickening (ЭхоКГ)24) Химическое оружие: identifying tag25) Макаров: initial deformation temperature, interdigitated transistor, internal thread, international tolerance, isomeric transition26) Безопасность: Information Trickery27) Расширение файла: Music (Impulse Tracker), Settings (intalk)28) МИД: Information and Communication Technology, (Information and Communication Technology) ИТ (информационно-коммуникационные технологии)29) Электротехника: instrument transformer, insulating transformer31) СМС: Is The -
74 it
1) Общая лексика: информатизация, The Injury Triangle2) Компьютерная техника: Indent Tab, Is There, информационная технология3) Медицина: инсулинотерапия4) Военный термин: Immediate Transient Incapacitation Dose, Improved TARTAR, Information transport, Innovative Tests, Inspector of Trooping, Institute of Technology, Interoperability Testing, ignition temperature, imaging techniques, immediate transient, immediate transportation, improved technology, individual training, infantry training, initial track, innovative technology, inspection tag, instruction tag, integrating testing, interrogator-transponder, inventory transfer, item transfer5) Техника: identification transponder, independent testing, instrument test, intelligent terminal, interdigital transistor, interfering transmitter, inverse-time6) Сельское хозяйство: immunotherapy7) Математика: индуцированная топология (induced topology), теория информации (information theory)8) Политика: Italy9) Телекоммуникации: Information Type10) Сокращение: Information Technology (e.g., "IT-21, Information Technology for the 21st century"), Instruction Technique, Intermediate Trainer, Italy (NATO country code), income tax, Iran Time (GMT + 0300), Industrial Technology, Inspection Test, Inter-digital Transistor, intrathecal11) Физиология: Individual therapy, Inhalation Therapy, Intensive Therapy12) Вычислительная техника: input translator, internal translator, Iran Time (+0300, TZ), информационная техника, передача информации13) Нефть: information technology, приёмочные испытания (inspection test)14) Биохимия: Intratracheal15) Фирменный знак: Imagination Technology, Itt16) Бурение: натяжение на поверхности раздела (interfacial tension)17) Глоссарий компании Сахалин Энерджи: neutral isolated, casing grounded, контроль при загрузке (initialization testing)18) Сетевые технологии: information transfer19) ЕБРР: Information Technology Department20) Полимеры: interfacial tension21) Контроль качества: initial tolerance22) Сахалин Р: initialization testing23) Медицинская техника: intimal thickening (ЭхоКГ)24) Химическое оружие: identifying tag25) Макаров: initial deformation temperature, interdigitated transistor, internal thread, international tolerance, isomeric transition26) Безопасность: Information Trickery27) Расширение файла: Music (Impulse Tracker), Settings (intalk)28) МИД: Information and Communication Technology, (Information and Communication Technology) ИТ (информационно-коммуникационные технологии)29) Электротехника: instrument transformer, insulating transformer31) СМС: Is The -
75 engine
двигатель (внутреннего сгорания); машина; мотор- engine analyzer - engine and gearbox unit - engine area - engine assembly - engine assembly shop - engine bonnet - engine braking force - engine breathing - engine-building - engine capacity - engine cleansing agents - engine column - engine component - engine conk - engine control - engine-cooling - engine-cooling thermometer - engine cowl flap - engine cross-drive casing - engine cutoff - engine cycle - engine data - engine deck - engine department - engine details - engine diagnostic connector - engine-driven air compressor - engine-driven industrial shop truck - engine dry weight - engine efficiency - engine failure - engine fan pulley - engine flameout - engine flywheel - engine for different fuels - engine frame - engine front - engine front area - engine front support bracket - engine fuel - engine gearbox - engine-gearbox unit - engine-generator - engine-governed speed - engine governor - engine gum - engine hatch - engine hoist - engine hood - engine house - engine idles rough - engine in situ - engine installation - engine is smooth - engine is tractable - engine knock - engine lacquer - engine life - engine lifetime pecypc - engine lifting bracket - engine lifting fixture - engine lifting hook - engine location - engine lubrication system - engine lug - engine management - engine management system - engine map - engine misfires - engine model - engine motoring - engine mount - engine-mounted - engine mounted longitudinally - engine mounted transversally - engine mounting - engine-mounting bracket - engine nameplate - engine noise - engine number - engine off - engine oil - engine oil capacity - engine oil filler cap - engine oil filling cap - engine oil tank - engine on - engine operating temperature - engine out of work - engine output - engine overhaul - engine pan - engine peak speed - engine performance - engine picks up - engine pings - engine piston - engine plant - engine power - engine pressure - engine primer - engine rating - engine rear support - engine reconditioning - engine renovation - engine repair stand - engine retarder - engine revolution counter - engine rig test - engine room - engine roughness - engine rpm indicator - engine run-in - engine runs rough - engine runs roughly - engine shaft - engine shed - engine shield - engine shop - engine shorting-out - engine shutdown - engine sludge - engine snubber - engine speed - engine speed sensor - engine stability - engine stalls - engine start - engine starting system - engine starts per day - engine stroke - engine subframe - engine sump - engine sump well - engine support - engine temperature sensor - engine test stand - engine testing room - engine throttle - engine timing case - engine-to-cabin passthrough aperture - engine-transmission unit - engine torque - engine trends - engine trouble - engine tune-up - engine turning at peak revolution - engine under seat - engine unit - engine vacuum checking gauge - engine valve - engine varnish - engine vibration - engine wash - engine water inlet - engine water outlet - engine wear - engine weight - engine weight per horsepower - engine winterization system - engine with supercharger - engine wobble - engine works - engine yard - engine's flexibility - aero-engine - atmospheric engine - atmospheric steam engine - atomic engine - augmented engine - AV-1 engine - aviation engine - back-up engine - birotary engine - blast-injection diesel engine - blower-cooled engine - bored-out engine - boxer engine - bull engine - car engine - charge-cooled engine - crank engine - crankcase-scavenged engine - crude engine - crude-oil engine - diaphragm engine - diesel-electric engine - Diesel engine - Diesel engine with air cell - Diesel engine with antechamber - Diesel engine with direct injection - Diesel engine with mechanical injection - direct injection engine - divided-chamber engine - double-flow engine - double-overhead camshaft engine - drilling engine - driving engine - drop-valve engine - ducted-fan engine - duofuel engine - emergency engine - explosion engine - external combustion engine - external-internal combustion engine - F-head engine - failed engine - fan engine - federal engine - field engine - fire-engine - five-cylinder engine - fixed engine - flame engine - flat engine - flat-four engine - flat twin engine - flexibly mounted engine - forced-induction engine - four-cycle engine - four-cylinder engine - four-stroke engine - free-piston engine - free-piston gas generator engine - front-mounted engine - free-turbine engine - fuel-injection engine - full-load engine - gas engine - gas blowing engine - gas-power engine - gas-turbine engine - gasoline engine - geared engine - heat engine - heavy-duty engine - heavy-oil engine - high-by-pass-ratio turbofan engine - high-compression engine - high-efficiency engine - high-performance engine - high-power engine - high-speed engine - hoisting engine - hopped-up engine - horizontal engine - horizontally opposed engine - hot engine - hot-air engine - hot-bulb engine - hydrogen engine - I-head engine - in-line engine - inclined engine - indirect injection engine - individual-cylinder engine - industrial engine - inhibited engine - injection oil engine - injection-type engine - intercooled diesel engine - intermittent-cycle engine - internal combustion engine - inverted engine - inverted Vee-engine - jet engine - jet-propulsion engine - kerosene engine - knock test engine - L-head engine - launch engine - lean-burn engine - left-hand engine - lift engine - light engine - liquid-cooled engine - liquid propane engine - locomotive engine - longitudinal engine - long-stroke engine - low-compression engine - low-consumption engine - low-emission engine - low-performance engine - low-speed engine - marine engine - modular engine - monosoupape engine - motor engine - motor an engine round - motor-boat engine - motor-fire engine - motorcycle engine - motored engine - multibank engine - multicarburetor engine - multicrank engine - multicylinder engine - multifuel engine - multirow engine - naturally aspirated engine - non-compression engine - non-condensing engine - non-exhaust valve engine - non-poppet valve engine - non-reversible engine - nuclear engine - oil engine - oil-electric engine - oil well drilling engine - one-cylinder engine - operating engine - opposed engine - opposed cylinders engine - Otto engine - out-board engine - overcooled engine - overhead valve engine - oversquare engine - overstroke engine - pancake engine - paraffin engine - paraffine engine - petrol engine - Petter AV-1 Diesel engine - pilot engine - piston engine - piston blast engine - port engine - precombustion chamber engine - prime an engine - producer-gas engine - production engine - prototype engine - pumping engine - pushrod engine - quadruple-expansion engine - qual-cam engine - racing engine - radial engine - radial cylinder engine - radial second motion engine - railway engine - ram induction engine - ram-jet engine - reaction engine - rear-mounted engine - rebuilt engine - reciprocating engine - reciprocating piston engine - reconditioned engine - regenerative engine - regular engine - reheat engine - research-cylinder engine - reversible engine - reversing engine - right-hand engine - rocket engine - rotary engine - rough engine - row engine - run in an engine - scavenged gasoline engine - scavenging engine - sea-level engine - second-motion engine - self-ignition engine - semidiesel engine - series-wound engine - servo-engine - short-life engine - short-stroke engine - shorted-out engine - shunting engine - shunt-wound engine - side-by-side engine - side-valve engine - simple-expansion engine - single-acting engine - single-chamber rocket engine - single-cylinder engine - single-cylinder test engine - single-row engine - six-cylinder engine - skid engine - slanted engine - sleeve-valve engine - sleeveless engine - slide-valve engine - slope engine - slow-running engine - slow-speed engine - small-bore engine - small-displacement engine - solid-injection engine - spark-ignition engine - spark-ignition fuel-injection engine - split-compressor engine - square engine - square stroke engine - stalled engine - stand-by engine - start the engine cold - start the engine light - start the engine warm- hot- starting engine - static engine - stationary engine - steam engine - steering engine - Stirling engine - straight-eight engine - straight-line engine - straight-type engine - stratified charge engine - stripped engine - submersible engine - suction gas engine - supercharged engine - supercompression engine - supplementary engine - swash-plate engine - switching engine - tandem engine - tank engine - thermal engine - three-cylinder engine - traction engine - triple-expansion engine - tractor engine - transversally-mounted engine - truck engine - trunk-piston Diesel engine - turbine engine - turbo-jet engine - turbo-charged engine - turbo-compound engine - turbo-prop engine - turbo-ramjet engine - turbo-supercharged engine - turbocharged-and-aftercooled engine - turbofan engine - turboprop engine - twin engine - twin cam engine - twin crankshaft engine - twin six engine - two-bank engine - two-cycle engine - two-cylinder engine - two-spool engine - two-stroke engine - unblown engine - uncooled engine - underfloor engine - undersquare engine - uniflow engine - unsupercharged engine - uprated engine - V-engine - V-type engine - valve-in-the-head engine - valveless engine - vaporizer engine - vaporizing-oil engine - variable compression engine - variable-stroke engine - variable valve-timing engine - vee engine - vertical engine - vertical turn engine - vertical vortex engine - W-type engine - Wankel engine - warm engine - waste-heat engine - water-cooled engine - winding engine - windshield wiper engine - woolly-type engine - worn engine - X-engine - Y-engine - yard engine -
76 grain
зерно; ркт. элемент заряда, шашка; заряд ( твёрдого ракетного топлива)solventless(-extruded, -processed) grain — шашка, отформованная без применения растворителя
star(-centered, -core, -perforated) grain — шашка со звездообразным каналом
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77 эффективная температура
Большой англо-русский и русско-английский словарь > эффективная температура
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78 coefficient
- accumulation coefficient
- adhesion coefficient
- adsorption coefficient
- air permeability coefficient
- amplification coefficient
- angular coefficient
- attenuation coefficient
- average gain coefficient
- backward scattering coefficient
- bending-moment coefficient
- bending-stiffness coefficient
- block coefficient
- center distance modification coefficient
- coefficient of absorption
- coefficient of amplification
- coefficient of collar friction
- coefficient of compressibility
- coefficient of contact friction
- coefficient of correction
- coefficient of corrosion
- coefficient of discharge
- coefficient of dynamic stiffness
- coefficient of efficiency
- coefficient of elasticity
- coefficient of engagement
- coefficient of expansion
- coefficient of friction
- coefficient of hardness
- coefficient of heat conduction
- coefficient of heat conductivity
- coefficient of heat passage
- coefficient of heat transfer
- coefficient of heat transmission
- coefficient of impact
- coefficient of increase of the average output velocity
- coefficient of journal friction
- coefficient of kinetic friction
- coefficient of leakage
- coefficient of lift
- coefficient of linear expansion
- coefficient of load
- coefficient of mechanical efficiency
- coefficient of merit
- coefficient of mutual overlap
- coefficient of nonuniformity of motion
- coefficient of reduction
- coefficient of resistance
- coefficient of restitution
- coefficient of rigidity
- coefficient of starting friction
- coefficient of static friction
- coefficient of superficial expansion
- coefficient of thermal efficiency
- coefficient of tooth friction
- coefficient of utilization
- coefficient of velocity
- coefficient of volume expansion
- coefficient of volumetric expansibility
- compliance coefficient
- compression coefficient
- compressive-buckling coefficient
- confidence coefficient
- control action coefficient
- control coefficient
- correlation coefficient
- coupling coefficient
- critical stress coefficient
- damping coefficient
- decay coefficient
- deflection coefficient
- dielectric coefficient
- dimensionless coefficient
- discharge coefficient
- distortion coefficient
- distribution coefficient
- elastic coefficient
- energy absorption coefficient
- energy transfer coefficient
- expansion coefficient
- extinction coefficient
- feedback coefficient
- flow coefficient
- force coefficient
- friction coefficient
- fusion coefficient
- gain coefficient
- general gain coefficient
- heat transfer coefficient
- heat transmission coefficient
- heat-conduction coefficient
- hydrodynamic loss coefficient
- inertial coefficient
- influence coefficient
- interference coefficient
- internal damping coefficient
- interpolation coefficient
- ionization gage coefficient
- irregularity coefficient
- kinematic coefficient
- lag coefficient
- literal coefficient
- loss coefficient
- magnetic coefficient
- modification coefficient
- nondimensional coefficient
- numerical coefficient
- overall coefficient
- overall heat transfer coefficient
- overall steady-flow coefficient
- pairwise similarity coefficient
- periodical coefficient
- pipe resistance coefficient
- position error coefficient
- power loading coefficient
- pressure coefficient
- pressure-drop coefficient
- profile drag coefficient
- profile shift coefficient
- proportional action coefficient
- pulsation coefficient
- recalculation coefficient
- reduced heat transmission coefficient
- reduction coefficient
- reflection coefficient
- relative improvement coefficient
- reliability coefficient
- reset coefficient
- restoring coefficient
- roughness coefficient
- safety coefficient
- SAW coupling coefficient
- scale coefficient
- serial expansion coefficient
- shear stiffness coefficient
- shifting coefficient
- similarity coefficient
- slip coefficient
- specific utilization coefficient
- speed coefficient
- surface heat exchange coefficient
- temperature coefficient of resistivity
- temperature coefficient
- temperature diffusivity coefficient of the material
- thermal expansion coefficient
- thermal storage capacity coefficient of the material
- total heat transfer coefficient
- traction coefficient
- transfer-function coefficient
- transmission coefficient
- trial coefficient
- utilization coefficient
- vapor permeability coefficient of the material
- variable coefficient
- velocity error coefficient
- volume coefficient
- weighting coefficientEnglish-Russian dictionary of mechanical engineering and automation > coefficient
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79 spindle
1) шпиндель; вал, валик; ось2) пиноль3) стержень; палец4) шейка вала; цапфа5) микрометрический винт; измерительный наконечник (напр. индикатора)6) ходовой винт•- 50 INT spindle
- AC acting spindle
- AC spindle
- AC variable frequency spindle
- adapter spindle
- add-on spindle
- adjusting spindle
- air-bearing spindle
- air-operated spindle
- angularly offset spindle
- articulated spindle
- attachment spindle
- automatic locking spindle
- automatic shank spindle
- automatic swivel spindle
- auxiliary spindle
- axle spindle
- back end working spindle
- back spindle
- back turning spindle
- backwork spindle
- ball-bearing spindle
- bar spindle
- bar-type spindle
- belt spindle
- belted spindle
- BODTM spindle
- bored spindle
- boring spindle
- brake spindle
- C axis spindle
- cartridge motorized spindle
- cartridge spindle
- cartridge-type motorized spindle
- cartridge-type spindle
- center facing spindle
- centering spindle
- ceramic ball-bearing spindle
- chuck spindle
- coarse-thread spindle
- collet spindle
- collet-chucking spindle
- control spindle
- copy spindle
- counter headstock spindle
- counterboring spindle
- cross spindle
- cutter spindle
- cutting spindle
- DC acting spindle
- DC spindle
- dead spindle
- diamond grinding spindle
- diamond spindle
- double sliding spindle
- dressing spindle
- drill spindle
- drilling spindle
- drive spindle
- dual spindles
- electric high-speed spindle
- electric spindle
- electrical spindle
- face grinding spindle
- facing spindle
- fast-tool-swapping spindle
- feed spindle
- feed-out spindle
- fine-tuned spindle
- finish milling spindle
- fixed spindle
- flooded coolant spindle
- footstock spindle
- force-sensing spindle
- front spindle
- gang spindle
- grease-packed spindle
- grinding spindle
- grinding wheel spindle
- ground spindle
- guide spindle
- HF spindle
- high-frequency internal grinding spindle
- high-frequency spindle
- high-speed spindle
- high-torque spindle
- hollow bore spindle
- hollow spindle
- hollow-shank spindle
- hydrostatic spindle
- hydrostatically controlled spindle
- inclinable spindle
- index spindle
- indexable spindle
- index-head spindle
- induced coolant spindle
- integral-motor spindle
- intermediate spindle
- internal grinding spindle
- internal hole grinding spindle
- ISO 30 spindle
- ISO 40 spindle
- ISO 50 spindle
- knuckle spindle
- lathe spindle
- lifting spindle
- limited rotation spindle
- linearly moving spindle
- liquid-cooled spindle
- live spindle
- main spindle
- mill spindle
- milling spindle
- milling, drilling and boring spindle
- motor spindle
- motorized spindle
- nutating spindle
- oil turbine spindle
- opposite spindle
- output spindle
- pick-off spindle
- pick-up spindle
- planetary spindle
- pneumatic spindle
- preload ball-bearing spindle
- programmable speed spindle
- pump spindle
- quill spindle
- quill-mounted spindle
- ram-type spindle
- rear spindle
- refrigerated spindle
- right-angle spindle
- roller bearing spindle
- rotary axis controlled spindle
- rough milling spindle
- router spindle
- routing spindle
- screw spindle
- screwed spindle
- second pick-up spindle
- second right hand spindle
- secondary spindle
- second-op spindle
- sliding head spindle
- sliding spindle
- smooth-running spindle
- speeding spindle
- splined spindle
- steep-taper spindle
- subsidiary spindle
- support spindle
- surfacing wheel spindle
- suspension spindle
- swing spindle
- swing-away spindle
- synchronous pick-off spindle
- tailstock spindle
- taper shank spindle
- tapered spindle
- tapping spindle
- telescopic spindle
- temperature-controlled spindle
- test spindle
- threaded spindle
- three-range spindle
- tiltable spindle
- tilting cutter spindle
- tilting work spindle
- tool spindle
- tool-carrying spindle
- toolhead spindle
- tool-holding spindle
- torsionally overloaded spindle
- touch sensor spindle
- tracer spindle
- transfer spindle
- traversing spindle
- turbine-powered spindle
- turning spindle
- turret spindle
- twin-motor spindle
- two-range spindle
- valve spindle
- variable frequency controlled spindle
- variable-frequency spindle
- vertical live spindle
- vertical quill spindle
- vertical to horizontal spindle
- wheel spindle
- wide-band spindle
- wind-up spindle
- work spindle
- work-carrying spindle
- workhead spindle
- work-receiving spindle
- work-supporting spindleEnglish-Russian dictionary of mechanical engineering and automation > spindle
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80 effects of the electric arc inside switchgear and controlgear assemblу
- действие электрической дуги, возникающей внутри НКУ распределения и управления
действие электрической дуги, возникающей внутри НКУ распределения и управления
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[Интент]Параллельные тексты EN-RU
Effects of the electric arc inside switchgear and controlgear assemblies
In the proximity of the main boards, i.e. in the proximity of big electrical machines, such as transformers or generators, the short-circuit power is high and consequently also the energy associated with the electrical arc due to a fault is high.
Without going into complex mathematical descriptions of this phenomenon, the first instants of arc formation inside a cubicle can be schematized in 4 phases:
1. compression phase: in this phase the volume of the air where the arc develops is overheated owing to the continuous release of energy; due to convection and radiation the remaining volume of air inside the cubicle warms up; initially there are temperature and pressure values different from one zone to another;
2. expansion phase: from the first instants of internal pressure increase a hole is formed through which the overheated air begins to go out. In this phase the pressure reaches its maximum value and starts to decrease owing to the release of hot air;
3. emission phase: in this phase, due to the continuous contribution of energy by the arc, nearly all the air is forced out under a soft and almost constant overpressure;
4. thermal phase: after the expulsion of the air, the temperature inside the switchgear reaches almost that of the electrical arc, thus beginning this final phase which lasts till the arc is quenched, when all the metals and the insulating materials coming into contact undergo erosion with production of gases, fumes and molten material particles.
Should the electrical arc occur in open configurations, some of the described phases could not be present or could have less effect; however, there shall be a pressure wave and a rise in the temperature of the zones surrounding the arc.
Being in the proximity of an electrical arc is quite dangerous; here are some data to understand how dangerous it is:
• pressure: at a distance of 60 cm from an electrical arc associated with a 20 kA arcing fault a person can be subject to a force of 225 kg; moreover, the sudden pressure wave may cause permanent injuries to the eardrum;
• arc temperatures: about 7000-8000 °C;
• sound: electrical arc sound levels can reach 160 db, a shotgun blast only 130 db.
[ABB]Действие электрической дуги, возникающей внутри НКУ распределения и управления
Короткое замыкание вблизи больших силовых устройств, таких как трансформаторы или генераторы имеет очень большую мощность. Поэтому энергия электрической дуги, возникшей в результате короткого замыкания, очень большая.
Не вдаваясь в сложное математическое описание данного явления, можно сказать, что первые мгновения формирования дуги внутри шкафа можно упрощенно разделить на четыре этапа:
1. Этап сжатия: на этом этапе объем воздуха, в котором происходит зарождение дуги перегревается вследствие непрерывного высвобождения энергии. За счет конвекции и излучения оставшийся объем воздуха внутри шкафа нагревается. На этом начальном этапе значения температуры и давления воздуха в разных зонах НКУ разные.
2. Этап расширения: с первых мгновений внутреннее давление создает канал, через который начинается движение перегретого воздуха. На этом этапе давление достигает своего максимального значения, после чего начинает уменьшаться вследствие выхода горячего воздуха.
3. Этап эмиссии: на этом этапе вследствие непрерывного пополнения энергией дуги почти весь воздух выталкивается под действием мягкого и почти постоянного избыточного давления.
4. Термический этап: после выхлопа воздуха температура внутри НКУ почти достигает температуры электрической дуги. Так начинается заключительный этап, который длится до тех пор, пока дуга не погаснет. При этом все металлические и изоляционные материалы, вступившие в контакт с дугой, оказываются подвергнутыми эрозии с выделением газов, дыма и частиц расплавленного материала.
Если электрическая дуга возникнет в открытом НКУ, то некоторые из описанных этапов могут не присутствовать или могут иметь меньшее воздействие. Тем не менее будет иметь место воздушная волна и подъем температуры вблизи дуги.
Находиться вблизи электрической дуги довольно опасно. Ниже приведены некоторые сведения, помогающие осознать эту опасность:
• давление: На расстоянии 60 см от электрической дуги, вызванной током короткого замыкания 20 кА, человек может подвергнуться воздействию силы 225 кг. Более того, резкая волна давления может нанести тяжелую травму барабанным перепонкам;
• температура дуги: около 7000-8000 °C;
• шумовое воздействие: Уровень шумового воздействия электрической дуги может достигнуть 160 дБ (выстрел из дробовика – 130 дБ).
[Перевод Интент]Тематики
- НКУ (шкафы, пульты,...)
EN
Англо-русский словарь нормативно-технической терминологии > effects of the electric arc inside switchgear and controlgear assemblу
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