-
1 DIS
1) Компьютерная техника: Draft International Standard2) Авиация: drawing introduction sheet, disagreement, disrete3) Военный термин: Daily Intelligence Summary, Data Integration System, Defence Intelligence Staff, Defense Information School, Defense Information Strategy, Defense Information System, Defense Intelligence School, Defense Intelligence Summary, Defense Investigation Service, Defense Investigation Service DIRWSEG, Director, Weapons Systems Evaluation Group, Department of Defense Index of Specifications and Standards, Director of Information Service, Director of Installation Support, Distributive Interactive Simulation, data inspection station, defence industrial security, digital instrumentation subsystem, digital integrated system, РШМО, Разведывательный штаб Министерства обороны (Великобритания), Defence Intelligence Staff (U.K.), Distributed Interactive System (распределенная интерактивная система)4) Техника: Defense Intelligence Staff, Doppler inertial system, data input supervisor, data input system, deception-immune seeker, deep inelastic scattering, digital idle stabilizer, disconnect, discrete, distant, distributor, disturbance, diverse indication system, dual image system5) Юридический термин: Direct Immediate And Specific6) Автомобильный термин: direct ignition (Waste Spark)7) Сокращение: Data Intensive System (DARPA), Defence Intelligence Staff (UK/NATO), Defense Investigative Service (USA), Distributed Intelligence System, Distributed Interactive Simulation, Distributed Interface Simulation, Defence Investigative Service8) Университет: Designing Interactive Systems9) Физиология: Delayed Itch Syndrome, Disabled11) Вычислительная техника: Data Interpretation System, Dealer Information System, Distributed Interaction Simulation, Digital Identification Signal (HDLC), Draft International Standard (ISO), Defense Information System (Mil., USA), диагностическая информационная система12) Экология: dissolved inorganic carbon13) Сетевые технологии: Deeply Integrated Systems, Desktop Infrastructure Services, diagnostic information system, digital identification signal, цифровой сигнал идентификации14) Сахалин Ю: drilling information system15) Расширение файла: Dynamic Impedance Stabilization (CompuCom), Thesaurus (CorelDraw), Distribution list (VAX Mail)16) ООН: Died In Shame17) Должность: Decision Information Sciences18) NYSE. Walt Disney Company19) Федеральное бюро расследований: Defense Investigative Service -
2 Dis
1) Компьютерная техника: Draft International Standard2) Авиация: drawing introduction sheet, disagreement, disrete3) Военный термин: Daily Intelligence Summary, Data Integration System, Defence Intelligence Staff, Defense Information School, Defense Information Strategy, Defense Information System, Defense Intelligence School, Defense Intelligence Summary, Defense Investigation Service, Defense Investigation Service DIRWSEG, Director, Weapons Systems Evaluation Group, Department of Defense Index of Specifications and Standards, Director of Information Service, Director of Installation Support, Distributive Interactive Simulation, data inspection station, defence industrial security, digital instrumentation subsystem, digital integrated system, РШМО, Разведывательный штаб Министерства обороны (Великобритания), Defence Intelligence Staff (U.K.), Distributed Interactive System (распределенная интерактивная система)4) Техника: Defense Intelligence Staff, Doppler inertial system, data input supervisor, data input system, deception-immune seeker, deep inelastic scattering, digital idle stabilizer, disconnect, discrete, distant, distributor, disturbance, diverse indication system, dual image system5) Юридический термин: Direct Immediate And Specific6) Автомобильный термин: direct ignition (Waste Spark)7) Сокращение: Data Intensive System (DARPA), Defence Intelligence Staff (UK/NATO), Defense Investigative Service (USA), Distributed Intelligence System, Distributed Interactive Simulation, Distributed Interface Simulation, Defence Investigative Service8) Университет: Designing Interactive Systems9) Физиология: Delayed Itch Syndrome, Disabled11) Вычислительная техника: Data Interpretation System, Dealer Information System, Distributed Interaction Simulation, Digital Identification Signal (HDLC), Draft International Standard (ISO), Defense Information System (Mil., USA), диагностическая информационная система12) Экология: dissolved inorganic carbon13) Сетевые технологии: Deeply Integrated Systems, Desktop Infrastructure Services, diagnostic information system, digital identification signal, цифровой сигнал идентификации14) Сахалин Ю: drilling information system15) Расширение файла: Dynamic Impedance Stabilization (CompuCom), Thesaurus (CorelDraw), Distribution list (VAX Mail)16) ООН: Died In Shame17) Должность: Decision Information Sciences18) NYSE. Walt Disney Company19) Федеральное бюро расследований: Defense Investigative Service -
3 dis
1) Компьютерная техника: Draft International Standard2) Авиация: drawing introduction sheet, disagreement, disrete3) Военный термин: Daily Intelligence Summary, Data Integration System, Defence Intelligence Staff, Defense Information School, Defense Information Strategy, Defense Information System, Defense Intelligence School, Defense Intelligence Summary, Defense Investigation Service, Defense Investigation Service DIRWSEG, Director, Weapons Systems Evaluation Group, Department of Defense Index of Specifications and Standards, Director of Information Service, Director of Installation Support, Distributive Interactive Simulation, data inspection station, defence industrial security, digital instrumentation subsystem, digital integrated system, РШМО, Разведывательный штаб Министерства обороны (Великобритания), Defence Intelligence Staff (U.K.), Distributed Interactive System (распределенная интерактивная система)4) Техника: Defense Intelligence Staff, Doppler inertial system, data input supervisor, data input system, deception-immune seeker, deep inelastic scattering, digital idle stabilizer, disconnect, discrete, distant, distributor, disturbance, diverse indication system, dual image system5) Юридический термин: Direct Immediate And Specific6) Автомобильный термин: direct ignition (Waste Spark)7) Сокращение: Data Intensive System (DARPA), Defence Intelligence Staff (UK/NATO), Defense Investigative Service (USA), Distributed Intelligence System, Distributed Interactive Simulation, Distributed Interface Simulation, Defence Investigative Service8) Университет: Designing Interactive Systems9) Физиология: Delayed Itch Syndrome, Disabled11) Вычислительная техника: Data Interpretation System, Dealer Information System, Distributed Interaction Simulation, Digital Identification Signal (HDLC), Draft International Standard (ISO), Defense Information System (Mil., USA), диагностическая информационная система12) Экология: dissolved inorganic carbon13) Сетевые технологии: Deeply Integrated Systems, Desktop Infrastructure Services, diagnostic information system, digital identification signal, цифровой сигнал идентификации14) Сахалин Ю: drilling information system15) Расширение файла: Dynamic Impedance Stabilization (CompuCom), Thesaurus (CorelDraw), Distribution list (VAX Mail)16) ООН: Died In Shame17) Должность: Decision Information Sciences18) NYSE. Walt Disney Company19) Федеральное бюро расследований: Defense Investigative Service -
4 test
1. испытание, проверка; опыт; проба; исследование, анализ || испытывать, проверять; исследовать; производить анализ2. опробование ( скважины) || опробоватьrule of thumb test — грубый [приближенный] метод оценки
— ball indentation test— Charpy impact test— DAP test— dry test— hydraulic pressure test— Izod impact test— shearing test— torsional test— wearing test
* * *
1. испытание, испытания; проверка; контроль2. исследование; анализ3. критерийdrill stem formation test — исследование пласта пластоиспытателем, спускаемым на бурильных трубах
— use test
* * *
исследование; испытание; опыт; проверка
* * *
опыт; испытание, проверка; проверять
* * *
1) испытание, испытания; проба; проверка; контроль2) исследование; анализ4) опробование ( скважины) || опробовать6) критерий•test for color stability — испытания ( бензина) на стабильность цвета;
test for defect — проверка на наличие дефектов;
test for soundness — испытания ( цемента) на равномерность изменения объёма;
test for suitability — испытания на пригодность (); испытания на соответствие заданным требованиям;
to test a core for shows of oil — исследовать керн на признаки нефти;
to test a well — измерять дебит скважины;
to apply boring test — применять бурение при поисковых работах;
test to destruction — испытания до разрушения ( образца), разрушающие испытания;
test to failure — испытания до отказа;
to put to test — подвергать испытаниям;
test with recovery — испытания с восстановлением;
- abrasion testtest without destruction — испытания без разрушения ( образца), неразрушающие испытания;
- accelerated test
- accelerated aging test of gasoline
- acceleration inertia load test
- acceptance test
- acid heat test
- activity test
- adhesion test
- air pressure test
- alkali test
- angularity test
- aniline test
- appraisal test
- assessment test
- ASTM test
- audit test
- availability acceptance test
- azimuth test
- back-pressure test
- back-pressure formation test
- bailing test
- bearing test
- bedrock test
- blowdown test
- bottle test
- breakdown test
- burn-in reliability test
- carbon test
- carbon color test
- casing-packer formation test
- centrifuge test
- certification test
- charcoal test
- charcoal weight test
- checkout test
- cloud test of petroleum oil
- coke test
- coking test
- cold test
- combined environment reliability test
- complete destructive test
- complete functional test
- cone penetrometer test
- confirmation test
- confirmatory test
- consumption test
- contact test
- contamination test
- control test
- controlled test
- copper dish gum evaporation test
- copper dish residue test
- copper strip test
- corrosion test
- corrosive wear test
- cracking test
- crankcase oil dilution test
- crankcase oil foaming test
- crosstalk test
- current production rate test
- damaging test
- deep test
- deep pool test
- definitive test
- demulsibility test
- demulsification test
- development test
- diammonium phosphate test
- diesel-fuel distillation test
- diesel-fuel gravity test
- dilution test of fuel
- dip test
- direct oxidation test
- distillation test
- doctor test
- double casing-packer formation test
- double wall-packer formation test
- drawdown test
- drift test
- drilling mud density test
- drilling mud fluidity test
- drill-off test
- drill-stem formation test
- dry test
- eddy-current test
- emulsification test
- endurance test
- engineering design test
- engineering evaluation test
- equipment operation test
- evaporation test of gasoline
- evaporation gum test
- exploratory test
- extension test
- fail-safe test
- failure test
- failure-producing test
- failure-rate test
- failure-terminated test
- failure-truncated test
- failure-under-load test
- falling weight test
- fatigue test
- field test
- field compression test
- field maintenance test
- filter test
- filtration test
- final malfunction test
- fire test
- firing time test
- flammability test
- float test
- floc test
- flood pot test
- flow test
- flowing bottom hole pressure test
- fluid test
- foam test
- forced failure test
- formation test
- formation productivity test
- friability test
- fuel dilution test
- full-scale test
- full-scale fatigue test
- gas test
- gas flow test
- gas impermeability test
- gasoline precipitation test
- gasoline sulfur test
- gasoline tetraethil lead test
- gasoline volatility test
- gel strength test
- glass dish evaporation test
- glass dish gum test
- Green test
- guarantee test
- gum test
- gumming test
- hammer test
- hand test
- heavy-duty test
- hot test
- hot filtration test
- hydraulic-pressure test
- hydro test
- hydrogen-in-petroleum test
- hydrostatic test
- immersion test
- in-place test
- in-use life test
- inflammability test
- initial well potential test
- injectivity test
- injectivity-index test
- interference test
- intermodulation test
- kauri-butanol solvency test
- knock test
- laboratory test on crude
- laboratory test on oil
- lacquer test
- lamp burning test
- lamp sulfur test
- lead acetate test
- leak test
- leakage test
- leakage test of weld seams
- length-of-life test
- life test
- life-certification test
- line test
- logging-cable formation test
- longevity test
- lubricating oil emulsion test
- lubricating oil metal test
- magnetic polarity test
- maintainability test
- maintenance test
- marine explosure test
- mercurization test
- mercury freezing test
- mixing water test
- motor method test
- multirate flow test
- neutralization test
- nitrating test
- nonfoaming test
- nonreplacement test
- oil cold test
- oil corrosion test
- oil emulsion test
- oil well potential test
- Oliensis spot test
- on-site test
- open-flow test
- open-hole formation test
- operability test
- operating life test
- operational test
- operational readiness test
- operational readiness and reliability test
- operational readiness inspection test
- operational suitability test
- oven test
- overflow test
- overspeed test
- overstress reliability test
- oxidation test
- oxygen absorption test
- pass-fail test
- penetration test
- performance test
- periodic potential test
- periodic well potential test
- permeability test
- pipeline immersion test
- plam test
- porcelain dish test
- postcompletional flow test
- potential test
- predemonstration test
- preliminary qualification test
- preoverhaul test
- prepilot mining test
- prequalification test
- pressure test
- pressure building test
- pressure drawdown test
- pressure transient test
- producing test
- production test
- production reliability test
- productivity test
- product-proof test
- proof test
- pulling test
- pulse test
- qualification test
- quality verification test
- reaction test
- reflection test
- refraction test
- reliability test
- reliability assurance test
- reliability audit test
- reliability demonstration test
- reliability field test
- reliability growth test
- reliability production test
- reliability verification test
- repair test
- repeated bending stress test
- repeated compression test
- repeated direct stress test
- repeated dynamic stress test
- repeated impact tension test
- repeated stress test
- repeated tensile stress test
- repeated tension test
- repeated torsion test
- replacement test
- reservoir limit test
- reversion test of kerosene
- rheometric test
- ring test
- road knock test
- rock specimen test
- running test
- sampling reliability test
- seawater corrosion test
- sediment-and-water test
- sedimentometric test
- seismic test
- selective flow test of well
- sequential reliability test
- service test
- serviceability test
- service-life evaluation test
- setting-time test
- settlement test
- severe-duty test
- shallover pay test
- short-time well test
- shut-in pressure test
- sieving test
- silica test
- silicotungstic acid test
- sludge test
- sludging test
- smell test
- smoke test
- soap hardness test
- soundness-and-fineness test
- spot test
- spot quality test
- stability test
- standard test
- standard acid test
- standard distillation test
- steady-state test of well
- steam soak test
- step-rate test
- straddle test
- straddle packer drill stem test
- straight-hole test
- strata test
- submersion test
- suitability test
- sulfated residue test
- sulfur test
- sulfuric acid heat test
- system operation test
- tap test
- tensile test
- tensile-and-compression test
- tensile-fatigue test
- tensile-impact test
- tensile-shock test
- tension test
- thickening-time test
- through-casing formation test
- time-terminated reliability test
- torque test
- torsion test
- torsion impact test
- toughness test
- trial test
- tribotechnical test
- Tutwiler test
- twisting test
- type test
- undestructive test
- upsetting test
- up-the-hole test
- use test
- vane test
- varnish test
- verification life test
- viscosity test
- volatilization test
- wall building test
- wall-packer formation test
- warranty test
- water test
- water-and-oil content test
- waterflood core test
- water-loss test
- wear test
- weld test
- weldability test
- welding test
- well test
- well potential test
- winterization test
- wireline formation test
- withdrawal test* * * -
5 courant admissible, m
(длительный) допустимый ток
Максимальное значение электрического тока, который может протекать длительно по проводнику, устройству или аппарату при определенных условиях без превышения определенного значения их температуры в установившемся режиме
[ ГОСТ Р МЭК 60050-826-2009]
Этот ток обозначают IZ
[ ГОСТ Р 50571. 1-2009 ( МЭК 60364-1: 2005)]EN
(continuous) current-carrying capacity
ampacity (US)
maximum value of electric current which can be carried continuously by a conductor, a device or an apparatus, under specified conditions without its steady-state temperature exceeding a specified value
[IEV number 826-11-13]
ampacity
The current in amperes that a conductor can carry continuously under the conditions of use without exceeding its temperature rating.
[National Electrical Cod]FR
courant (permanent) admissible, m
valeur maximale du courant électrique qui peut parcourir en permanence, un conducteur, un dispositif ou un appareil, sans que sa température de régime permanent, dans des conditions données, soit supérieure à la valeur spécifiée
[IEV number 826-11-13]Ampacity, the term is defined as the maximum amount of current a cable can carry before sustaining immediate or progressive deterioration. Also described as current rating or current-carrying capacity, is the RMS electric current which a device can continuously carry while remaining within its temperature rating. The ampacity of a cable depends on:
- its insulation temperature rating;
- conductor electrical properties for current;
- frequency, in the case of alternating currents;
- ability to dissipate heat, which depends on cable geometry and its surroundings;
- ambient temperature.
Electric wires have some resistance, and electric current flowing through them causes voltage drop and power dissipation, which heats the cable. Copper or aluminum can conduct a large amount of current before melting, but long before the conductors melt, their insulation would be damaged by the heat.
The ampacity for a power cable is thus based on physical and electrical properties of the material & construction of the conductor and of its insulation, ambient temperature, and environmental conditions adjacent to the cable. Having a large overall surface area may dissipate heat well if the environment can absorb the heat.
In a long run of cable, different conditions govern, and installation regulations normally specify that the most severe condition along the run governs the cable's rating. Cables run in wet or oily locations may carry a lower temperature rating than in a dry installation. Derating is necessary for multiple circuits in close proximity. When multiple cables are near, each contributes heat to the others and diminishes the amount of cooling air that can flow past the individual cables. The overall ampacity of the insulated conductors in a bundle of more than 3 must be derated, whether in a raceway or cable. Usually the de-rating factor is tabulated in a nation's wiring regulations.
Depending on the type of insulating material, common maximum allowable temperatures at the surface of the conductor are 60, 75 and 90 degrees Celsius, often with an ambient air temperature of 30°C. In the U.S., 105°C is allowed with ambient of 40°C, for larger power cables, especially those operating at more than 2 kV. Likewise, specific insulations are rated 150, 200 or 250°C.
The allowed current in cables generally needs to be decreased (derated) when the cable is covered with fireproofing material.
For example, the United States National Electric Code, Table 310-16, specifies that up to three 8 AWG copper wires having a common insulating material (THWN) in a raceway, cable, or direct burial has an ampacity of 50 A when the ambient air is 30°C, the conductor surface temperature allowed to be 75°C. A single insulated conductor in air has 70 A rating.
Ampacity rating is normally for continuous current, and short periods of overcurrent occur without harm in most cabling systems. The acceptable magnitude and duration of overcurrent is a more complex topic than ampacity.
When designing an electrical system, one will normally need to know the current rating for the following:- Wires
- Printed Circuit Board traces, where included
- Fuses
- Circuit breakers
- All or nearly all components used
Some devices are limited by power rating, and when this power rating occurs below their current limit, it is not necessary to know the current limit to design a system. A common example of this is lightbulb holders.
[http://en.wikipedia.org/wiki/Ampacity]
Тематики
- электротехника, основные понятия
Синонимы
EN
DE
- Dauerstrombelastbarkeit, f
- Strombelastbarkeit, f
FR
- courant admissible, m
- courant permanent admissible, m
Франко-русский словарь нормативно-технической терминологии > courant admissible, m
-
6 courant permanent admissible, m
(длительный) допустимый ток
Максимальное значение электрического тока, который может протекать длительно по проводнику, устройству или аппарату при определенных условиях без превышения определенного значения их температуры в установившемся режиме
[ ГОСТ Р МЭК 60050-826-2009]
Этот ток обозначают IZ
[ ГОСТ Р 50571. 1-2009 ( МЭК 60364-1: 2005)]EN
(continuous) current-carrying capacity
ampacity (US)
maximum value of electric current which can be carried continuously by a conductor, a device or an apparatus, under specified conditions without its steady-state temperature exceeding a specified value
[IEV number 826-11-13]
ampacity
The current in amperes that a conductor can carry continuously under the conditions of use without exceeding its temperature rating.
[National Electrical Cod]FR
courant (permanent) admissible, m
valeur maximale du courant électrique qui peut parcourir en permanence, un conducteur, un dispositif ou un appareil, sans que sa température de régime permanent, dans des conditions données, soit supérieure à la valeur spécifiée
[IEV number 826-11-13]Ampacity, the term is defined as the maximum amount of current a cable can carry before sustaining immediate or progressive deterioration. Also described as current rating or current-carrying capacity, is the RMS electric current which a device can continuously carry while remaining within its temperature rating. The ampacity of a cable depends on:
- its insulation temperature rating;
- conductor electrical properties for current;
- frequency, in the case of alternating currents;
- ability to dissipate heat, which depends on cable geometry and its surroundings;
- ambient temperature.
Electric wires have some resistance, and electric current flowing through them causes voltage drop and power dissipation, which heats the cable. Copper or aluminum can conduct a large amount of current before melting, but long before the conductors melt, their insulation would be damaged by the heat.
The ampacity for a power cable is thus based on physical and electrical properties of the material & construction of the conductor and of its insulation, ambient temperature, and environmental conditions adjacent to the cable. Having a large overall surface area may dissipate heat well if the environment can absorb the heat.
In a long run of cable, different conditions govern, and installation regulations normally specify that the most severe condition along the run governs the cable's rating. Cables run in wet or oily locations may carry a lower temperature rating than in a dry installation. Derating is necessary for multiple circuits in close proximity. When multiple cables are near, each contributes heat to the others and diminishes the amount of cooling air that can flow past the individual cables. The overall ampacity of the insulated conductors in a bundle of more than 3 must be derated, whether in a raceway or cable. Usually the de-rating factor is tabulated in a nation's wiring regulations.
Depending on the type of insulating material, common maximum allowable temperatures at the surface of the conductor are 60, 75 and 90 degrees Celsius, often with an ambient air temperature of 30°C. In the U.S., 105°C is allowed with ambient of 40°C, for larger power cables, especially those operating at more than 2 kV. Likewise, specific insulations are rated 150, 200 or 250°C.
The allowed current in cables generally needs to be decreased (derated) when the cable is covered with fireproofing material.
For example, the United States National Electric Code, Table 310-16, specifies that up to three 8 AWG copper wires having a common insulating material (THWN) in a raceway, cable, or direct burial has an ampacity of 50 A when the ambient air is 30°C, the conductor surface temperature allowed to be 75°C. A single insulated conductor in air has 70 A rating.
Ampacity rating is normally for continuous current, and short periods of overcurrent occur without harm in most cabling systems. The acceptable magnitude and duration of overcurrent is a more complex topic than ampacity.
When designing an electrical system, one will normally need to know the current rating for the following:- Wires
- Printed Circuit Board traces, where included
- Fuses
- Circuit breakers
- All or nearly all components used
Some devices are limited by power rating, and when this power rating occurs below their current limit, it is not necessary to know the current limit to design a system. A common example of this is lightbulb holders.
[http://en.wikipedia.org/wiki/Ampacity]
Тематики
- электротехника, основные понятия
Синонимы
EN
DE
- Dauerstrombelastbarkeit, f
- Strombelastbarkeit, f
FR
- courant admissible, m
- courant permanent admissible, m
Франко-русский словарь нормативно-технической терминологии > courant permanent admissible, m
-
7 Dauerstrombelastbarkeit, f
(длительный) допустимый ток
Максимальное значение электрического тока, который может протекать длительно по проводнику, устройству или аппарату при определенных условиях без превышения определенного значения их температуры в установившемся режиме
[ ГОСТ Р МЭК 60050-826-2009]
Этот ток обозначают IZ
[ ГОСТ Р 50571. 1-2009 ( МЭК 60364-1: 2005)]EN
(continuous) current-carrying capacity
ampacity (US)
maximum value of electric current which can be carried continuously by a conductor, a device or an apparatus, under specified conditions without its steady-state temperature exceeding a specified value
[IEV number 826-11-13]
ampacity
The current in amperes that a conductor can carry continuously under the conditions of use without exceeding its temperature rating.
[National Electrical Cod]FR
courant (permanent) admissible, m
valeur maximale du courant électrique qui peut parcourir en permanence, un conducteur, un dispositif ou un appareil, sans que sa température de régime permanent, dans des conditions données, soit supérieure à la valeur spécifiée
[IEV number 826-11-13]Ampacity, the term is defined as the maximum amount of current a cable can carry before sustaining immediate or progressive deterioration. Also described as current rating or current-carrying capacity, is the RMS electric current which a device can continuously carry while remaining within its temperature rating. The ampacity of a cable depends on:
- its insulation temperature rating;
- conductor electrical properties for current;
- frequency, in the case of alternating currents;
- ability to dissipate heat, which depends on cable geometry and its surroundings;
- ambient temperature.
Electric wires have some resistance, and electric current flowing through them causes voltage drop and power dissipation, which heats the cable. Copper or aluminum can conduct a large amount of current before melting, but long before the conductors melt, their insulation would be damaged by the heat.
The ampacity for a power cable is thus based on physical and electrical properties of the material & construction of the conductor and of its insulation, ambient temperature, and environmental conditions adjacent to the cable. Having a large overall surface area may dissipate heat well if the environment can absorb the heat.
In a long run of cable, different conditions govern, and installation regulations normally specify that the most severe condition along the run governs the cable's rating. Cables run in wet or oily locations may carry a lower temperature rating than in a dry installation. Derating is necessary for multiple circuits in close proximity. When multiple cables are near, each contributes heat to the others and diminishes the amount of cooling air that can flow past the individual cables. The overall ampacity of the insulated conductors in a bundle of more than 3 must be derated, whether in a raceway or cable. Usually the de-rating factor is tabulated in a nation's wiring regulations.
Depending on the type of insulating material, common maximum allowable temperatures at the surface of the conductor are 60, 75 and 90 degrees Celsius, often with an ambient air temperature of 30°C. In the U.S., 105°C is allowed with ambient of 40°C, for larger power cables, especially those operating at more than 2 kV. Likewise, specific insulations are rated 150, 200 or 250°C.
The allowed current in cables generally needs to be decreased (derated) when the cable is covered with fireproofing material.
For example, the United States National Electric Code, Table 310-16, specifies that up to three 8 AWG copper wires having a common insulating material (THWN) in a raceway, cable, or direct burial has an ampacity of 50 A when the ambient air is 30°C, the conductor surface temperature allowed to be 75°C. A single insulated conductor in air has 70 A rating.
Ampacity rating is normally for continuous current, and short periods of overcurrent occur without harm in most cabling systems. The acceptable magnitude and duration of overcurrent is a more complex topic than ampacity.
When designing an electrical system, one will normally need to know the current rating for the following:- Wires
- Printed Circuit Board traces, where included
- Fuses
- Circuit breakers
- All or nearly all components used
Some devices are limited by power rating, and when this power rating occurs below their current limit, it is not necessary to know the current limit to design a system. A common example of this is lightbulb holders.
[http://en.wikipedia.org/wiki/Ampacity]
Тематики
- электротехника, основные понятия
Синонимы
EN
DE
- Dauerstrombelastbarkeit, f
- Strombelastbarkeit, f
FR
- courant admissible, m
- courant permanent admissible, m
Немецко-русский словарь нормативно-технической терминологии > Dauerstrombelastbarkeit, f
-
8 Strombelastbarkeit, f
(длительный) допустимый ток
Максимальное значение электрического тока, который может протекать длительно по проводнику, устройству или аппарату при определенных условиях без превышения определенного значения их температуры в установившемся режиме
[ ГОСТ Р МЭК 60050-826-2009]
Этот ток обозначают IZ
[ ГОСТ Р 50571. 1-2009 ( МЭК 60364-1: 2005)]EN
(continuous) current-carrying capacity
ampacity (US)
maximum value of electric current which can be carried continuously by a conductor, a device or an apparatus, under specified conditions without its steady-state temperature exceeding a specified value
[IEV number 826-11-13]
ampacity
The current in amperes that a conductor can carry continuously under the conditions of use without exceeding its temperature rating.
[National Electrical Cod]FR
courant (permanent) admissible, m
valeur maximale du courant électrique qui peut parcourir en permanence, un conducteur, un dispositif ou un appareil, sans que sa température de régime permanent, dans des conditions données, soit supérieure à la valeur spécifiée
[IEV number 826-11-13]Ampacity, the term is defined as the maximum amount of current a cable can carry before sustaining immediate or progressive deterioration. Also described as current rating or current-carrying capacity, is the RMS electric current which a device can continuously carry while remaining within its temperature rating. The ampacity of a cable depends on:
- its insulation temperature rating;
- conductor electrical properties for current;
- frequency, in the case of alternating currents;
- ability to dissipate heat, which depends on cable geometry and its surroundings;
- ambient temperature.
Electric wires have some resistance, and electric current flowing through them causes voltage drop and power dissipation, which heats the cable. Copper or aluminum can conduct a large amount of current before melting, but long before the conductors melt, their insulation would be damaged by the heat.
The ampacity for a power cable is thus based on physical and electrical properties of the material & construction of the conductor and of its insulation, ambient temperature, and environmental conditions adjacent to the cable. Having a large overall surface area may dissipate heat well if the environment can absorb the heat.
In a long run of cable, different conditions govern, and installation regulations normally specify that the most severe condition along the run governs the cable's rating. Cables run in wet or oily locations may carry a lower temperature rating than in a dry installation. Derating is necessary for multiple circuits in close proximity. When multiple cables are near, each contributes heat to the others and diminishes the amount of cooling air that can flow past the individual cables. The overall ampacity of the insulated conductors in a bundle of more than 3 must be derated, whether in a raceway or cable. Usually the de-rating factor is tabulated in a nation's wiring regulations.
Depending on the type of insulating material, common maximum allowable temperatures at the surface of the conductor are 60, 75 and 90 degrees Celsius, often with an ambient air temperature of 30°C. In the U.S., 105°C is allowed with ambient of 40°C, for larger power cables, especially those operating at more than 2 kV. Likewise, specific insulations are rated 150, 200 or 250°C.
The allowed current in cables generally needs to be decreased (derated) when the cable is covered with fireproofing material.
For example, the United States National Electric Code, Table 310-16, specifies that up to three 8 AWG copper wires having a common insulating material (THWN) in a raceway, cable, or direct burial has an ampacity of 50 A when the ambient air is 30°C, the conductor surface temperature allowed to be 75°C. A single insulated conductor in air has 70 A rating.
Ampacity rating is normally for continuous current, and short periods of overcurrent occur without harm in most cabling systems. The acceptable magnitude and duration of overcurrent is a more complex topic than ampacity.
When designing an electrical system, one will normally need to know the current rating for the following:- Wires
- Printed Circuit Board traces, where included
- Fuses
- Circuit breakers
- All or nearly all components used
Some devices are limited by power rating, and when this power rating occurs below their current limit, it is not necessary to know the current limit to design a system. A common example of this is lightbulb holders.
[http://en.wikipedia.org/wiki/Ampacity]
Тематики
- электротехника, основные понятия
Синонимы
EN
DE
- Dauerstrombelastbarkeit, f
- Strombelastbarkeit, f
FR
- courant admissible, m
- courant permanent admissible, m
Немецко-русский словарь нормативно-технической терминологии > Strombelastbarkeit, f
-
9 continuous current-carrying capacity
длительная пропускная способность по току
—
[Я.Н.Лугинский, М.С.Фези-Жилинская, Ю.С.Кабиров. Англо-русский словарь по электротехнике и электроэнергетике, Москва, 1999 г.]Тематики
- электротехника, основные понятия
EN
(длительный) допустимый ток
Максимальное значение электрического тока, который может протекать длительно по проводнику, устройству или аппарату при определенных условиях без превышения определенного значения их температуры в установившемся режиме
[ ГОСТ Р МЭК 60050-826-2009]
Этот ток обозначают IZ
[ ГОСТ Р 50571. 1-2009 ( МЭК 60364-1: 2005)]EN
(continuous) current-carrying capacity
ampacity (US)
maximum value of electric current which can be carried continuously by a conductor, a device or an apparatus, under specified conditions without its steady-state temperature exceeding a specified value
[IEV number 826-11-13]
ampacity
The current in amperes that a conductor can carry continuously under the conditions of use without exceeding its temperature rating.
[National Electrical Cod]FR
courant (permanent) admissible, m
valeur maximale du courant électrique qui peut parcourir en permanence, un conducteur, un dispositif ou un appareil, sans que sa température de régime permanent, dans des conditions données, soit supérieure à la valeur spécifiée
[IEV number 826-11-13]Ampacity, the term is defined as the maximum amount of current a cable can carry before sustaining immediate or progressive deterioration. Also described as current rating or current-carrying capacity, is the RMS electric current which a device can continuously carry while remaining within its temperature rating. The ampacity of a cable depends on:
- its insulation temperature rating;
- conductor electrical properties for current;
- frequency, in the case of alternating currents;
- ability to dissipate heat, which depends on cable geometry and its surroundings;
- ambient temperature.
Electric wires have some resistance, and electric current flowing through them causes voltage drop and power dissipation, which heats the cable. Copper or aluminum can conduct a large amount of current before melting, but long before the conductors melt, their insulation would be damaged by the heat.
The ampacity for a power cable is thus based on physical and electrical properties of the material & construction of the conductor and of its insulation, ambient temperature, and environmental conditions adjacent to the cable. Having a large overall surface area may dissipate heat well if the environment can absorb the heat.
In a long run of cable, different conditions govern, and installation regulations normally specify that the most severe condition along the run governs the cable's rating. Cables run in wet or oily locations may carry a lower temperature rating than in a dry installation. Derating is necessary for multiple circuits in close proximity. When multiple cables are near, each contributes heat to the others and diminishes the amount of cooling air that can flow past the individual cables. The overall ampacity of the insulated conductors in a bundle of more than 3 must be derated, whether in a raceway or cable. Usually the de-rating factor is tabulated in a nation's wiring regulations.
Depending on the type of insulating material, common maximum allowable temperatures at the surface of the conductor are 60, 75 and 90 degrees Celsius, often with an ambient air temperature of 30°C. In the U.S., 105°C is allowed with ambient of 40°C, for larger power cables, especially those operating at more than 2 kV. Likewise, specific insulations are rated 150, 200 or 250°C.
The allowed current in cables generally needs to be decreased (derated) when the cable is covered with fireproofing material.
For example, the United States National Electric Code, Table 310-16, specifies that up to three 8 AWG copper wires having a common insulating material (THWN) in a raceway, cable, or direct burial has an ampacity of 50 A when the ambient air is 30°C, the conductor surface temperature allowed to be 75°C. A single insulated conductor in air has 70 A rating.
Ampacity rating is normally for continuous current, and short periods of overcurrent occur without harm in most cabling systems. The acceptable magnitude and duration of overcurrent is a more complex topic than ampacity.
When designing an electrical system, one will normally need to know the current rating for the following:- Wires
- Printed Circuit Board traces, where included
- Fuses
- Circuit breakers
- All or nearly all components used
Some devices are limited by power rating, and when this power rating occurs below their current limit, it is not necessary to know the current limit to design a system. A common example of this is lightbulb holders.
[http://en.wikipedia.org/wiki/Ampacity]
Тематики
- электротехника, основные понятия
Синонимы
EN
DE
- Dauerstrombelastbarkeit, f
- Strombelastbarkeit, f
FR
- courant admissible, m
- courant permanent admissible, m
Англо-русский словарь нормативно-технической терминологии > continuous current-carrying capacity
-
10 ampacity (US)
(длительный) допустимый ток
Максимальное значение электрического тока, который может протекать длительно по проводнику, устройству или аппарату при определенных условиях без превышения определенного значения их температуры в установившемся режиме
[ ГОСТ Р МЭК 60050-826-2009]
Этот ток обозначают IZ
[ ГОСТ Р 50571. 1-2009 ( МЭК 60364-1: 2005)]EN
(continuous) current-carrying capacity
ampacity (US)
maximum value of electric current which can be carried continuously by a conductor, a device or an apparatus, under specified conditions without its steady-state temperature exceeding a specified value
[IEV number 826-11-13]
ampacity
The current in amperes that a conductor can carry continuously under the conditions of use without exceeding its temperature rating.
[National Electrical Cod]FR
courant (permanent) admissible, m
valeur maximale du courant électrique qui peut parcourir en permanence, un conducteur, un dispositif ou un appareil, sans que sa température de régime permanent, dans des conditions données, soit supérieure à la valeur spécifiée
[IEV number 826-11-13]Ampacity, the term is defined as the maximum amount of current a cable can carry before sustaining immediate or progressive deterioration. Also described as current rating or current-carrying capacity, is the RMS electric current which a device can continuously carry while remaining within its temperature rating. The ampacity of a cable depends on:
- its insulation temperature rating;
- conductor electrical properties for current;
- frequency, in the case of alternating currents;
- ability to dissipate heat, which depends on cable geometry and its surroundings;
- ambient temperature.
Electric wires have some resistance, and electric current flowing through them causes voltage drop and power dissipation, which heats the cable. Copper or aluminum can conduct a large amount of current before melting, but long before the conductors melt, their insulation would be damaged by the heat.
The ampacity for a power cable is thus based on physical and electrical properties of the material & construction of the conductor and of its insulation, ambient temperature, and environmental conditions adjacent to the cable. Having a large overall surface area may dissipate heat well if the environment can absorb the heat.
In a long run of cable, different conditions govern, and installation regulations normally specify that the most severe condition along the run governs the cable's rating. Cables run in wet or oily locations may carry a lower temperature rating than in a dry installation. Derating is necessary for multiple circuits in close proximity. When multiple cables are near, each contributes heat to the others and diminishes the amount of cooling air that can flow past the individual cables. The overall ampacity of the insulated conductors in a bundle of more than 3 must be derated, whether in a raceway or cable. Usually the de-rating factor is tabulated in a nation's wiring regulations.
Depending on the type of insulating material, common maximum allowable temperatures at the surface of the conductor are 60, 75 and 90 degrees Celsius, often with an ambient air temperature of 30°C. In the U.S., 105°C is allowed with ambient of 40°C, for larger power cables, especially those operating at more than 2 kV. Likewise, specific insulations are rated 150, 200 or 250°C.
The allowed current in cables generally needs to be decreased (derated) when the cable is covered with fireproofing material.
For example, the United States National Electric Code, Table 310-16, specifies that up to three 8 AWG copper wires having a common insulating material (THWN) in a raceway, cable, or direct burial has an ampacity of 50 A when the ambient air is 30°C, the conductor surface temperature allowed to be 75°C. A single insulated conductor in air has 70 A rating.
Ampacity rating is normally for continuous current, and short periods of overcurrent occur without harm in most cabling systems. The acceptable magnitude and duration of overcurrent is a more complex topic than ampacity.
When designing an electrical system, one will normally need to know the current rating for the following:- Wires
- Printed Circuit Board traces, where included
- Fuses
- Circuit breakers
- All or nearly all components used
Some devices are limited by power rating, and when this power rating occurs below their current limit, it is not necessary to know the current limit to design a system. A common example of this is lightbulb holders.
[http://en.wikipedia.org/wiki/Ampacity]
Тематики
- электротехника, основные понятия
Синонимы
EN
DE
- Dauerstrombelastbarkeit, f
- Strombelastbarkeit, f
FR
- courant admissible, m
- courant permanent admissible, m
Англо-русский словарь нормативно-технической терминологии > ampacity (US)
-
11 continuous current
(длительный) допустимый ток
Максимальное значение электрического тока, который может протекать длительно по проводнику, устройству или аппарату при определенных условиях без превышения определенного значения их температуры в установившемся режиме
[ ГОСТ Р МЭК 60050-826-2009]
Этот ток обозначают IZ
[ ГОСТ Р 50571. 1-2009 ( МЭК 60364-1: 2005)]EN
(continuous) current-carrying capacity
ampacity (US)
maximum value of electric current which can be carried continuously by a conductor, a device or an apparatus, under specified conditions without its steady-state temperature exceeding a specified value
[IEV number 826-11-13]
ampacity
The current in amperes that a conductor can carry continuously under the conditions of use without exceeding its temperature rating.
[National Electrical Cod]FR
courant (permanent) admissible, m
valeur maximale du courant électrique qui peut parcourir en permanence, un conducteur, un dispositif ou un appareil, sans que sa température de régime permanent, dans des conditions données, soit supérieure à la valeur spécifiée
[IEV number 826-11-13]Ampacity, the term is defined as the maximum amount of current a cable can carry before sustaining immediate or progressive deterioration. Also described as current rating or current-carrying capacity, is the RMS electric current which a device can continuously carry while remaining within its temperature rating. The ampacity of a cable depends on:
- its insulation temperature rating;
- conductor electrical properties for current;
- frequency, in the case of alternating currents;
- ability to dissipate heat, which depends on cable geometry and its surroundings;
- ambient temperature.
Electric wires have some resistance, and electric current flowing through them causes voltage drop and power dissipation, which heats the cable. Copper or aluminum can conduct a large amount of current before melting, but long before the conductors melt, their insulation would be damaged by the heat.
The ampacity for a power cable is thus based on physical and electrical properties of the material & construction of the conductor and of its insulation, ambient temperature, and environmental conditions adjacent to the cable. Having a large overall surface area may dissipate heat well if the environment can absorb the heat.
In a long run of cable, different conditions govern, and installation regulations normally specify that the most severe condition along the run governs the cable's rating. Cables run in wet or oily locations may carry a lower temperature rating than in a dry installation. Derating is necessary for multiple circuits in close proximity. When multiple cables are near, each contributes heat to the others and diminishes the amount of cooling air that can flow past the individual cables. The overall ampacity of the insulated conductors in a bundle of more than 3 must be derated, whether in a raceway or cable. Usually the de-rating factor is tabulated in a nation's wiring regulations.
Depending on the type of insulating material, common maximum allowable temperatures at the surface of the conductor are 60, 75 and 90 degrees Celsius, often with an ambient air temperature of 30°C. In the U.S., 105°C is allowed with ambient of 40°C, for larger power cables, especially those operating at more than 2 kV. Likewise, specific insulations are rated 150, 200 or 250°C.
The allowed current in cables generally needs to be decreased (derated) when the cable is covered with fireproofing material.
For example, the United States National Electric Code, Table 310-16, specifies that up to three 8 AWG copper wires having a common insulating material (THWN) in a raceway, cable, or direct burial has an ampacity of 50 A when the ambient air is 30°C, the conductor surface temperature allowed to be 75°C. A single insulated conductor in air has 70 A rating.
Ampacity rating is normally for continuous current, and short periods of overcurrent occur without harm in most cabling systems. The acceptable magnitude and duration of overcurrent is a more complex topic than ampacity.
When designing an electrical system, one will normally need to know the current rating for the following:- Wires
- Printed Circuit Board traces, where included
- Fuses
- Circuit breakers
- All or nearly all components used
Some devices are limited by power rating, and when this power rating occurs below their current limit, it is not necessary to know the current limit to design a system. A common example of this is lightbulb holders.
[http://en.wikipedia.org/wiki/Ampacity]
Тематики
- электротехника, основные понятия
Синонимы
EN
DE
- Dauerstrombelastbarkeit, f
- Strombelastbarkeit, f
FR
- courant admissible, m
- courant permanent admissible, m
непрерывный ток
—
[Я.Н.Лугинский, М.С.Фези-Жилинская, Ю.С.Кабиров. Англо-русский словарь по электротехнике и электроэнергетике, Москва, 1999]Тематики
- электротехника, основные понятия
EN
Англо-русский словарь нормативно-технической терминологии > continuous current
-
12 current-carrying capacity
(длительный) допустимый ток
Максимальное значение электрического тока, который может протекать длительно по проводнику, устройству или аппарату при определенных условиях без превышения определенного значения их температуры в установившемся режиме
[ ГОСТ Р МЭК 60050-826-2009]
Этот ток обозначают IZ
[ ГОСТ Р 50571. 1-2009 ( МЭК 60364-1: 2005)]EN
(continuous) current-carrying capacity
ampacity (US)
maximum value of electric current which can be carried continuously by a conductor, a device or an apparatus, under specified conditions without its steady-state temperature exceeding a specified value
[IEV number 826-11-13]
ampacity
The current in amperes that a conductor can carry continuously under the conditions of use without exceeding its temperature rating.
[National Electrical Cod]FR
courant (permanent) admissible, m
valeur maximale du courant électrique qui peut parcourir en permanence, un conducteur, un dispositif ou un appareil, sans que sa température de régime permanent, dans des conditions données, soit supérieure à la valeur spécifiée
[IEV number 826-11-13]Ampacity, the term is defined as the maximum amount of current a cable can carry before sustaining immediate or progressive deterioration. Also described as current rating or current-carrying capacity, is the RMS electric current which a device can continuously carry while remaining within its temperature rating. The ampacity of a cable depends on:
- its insulation temperature rating;
- conductor electrical properties for current;
- frequency, in the case of alternating currents;
- ability to dissipate heat, which depends on cable geometry and its surroundings;
- ambient temperature.
Electric wires have some resistance, and electric current flowing through them causes voltage drop and power dissipation, which heats the cable. Copper or aluminum can conduct a large amount of current before melting, but long before the conductors melt, their insulation would be damaged by the heat.
The ampacity for a power cable is thus based on physical and electrical properties of the material & construction of the conductor and of its insulation, ambient temperature, and environmental conditions adjacent to the cable. Having a large overall surface area may dissipate heat well if the environment can absorb the heat.
In a long run of cable, different conditions govern, and installation regulations normally specify that the most severe condition along the run governs the cable's rating. Cables run in wet or oily locations may carry a lower temperature rating than in a dry installation. Derating is necessary for multiple circuits in close proximity. When multiple cables are near, each contributes heat to the others and diminishes the amount of cooling air that can flow past the individual cables. The overall ampacity of the insulated conductors in a bundle of more than 3 must be derated, whether in a raceway or cable. Usually the de-rating factor is tabulated in a nation's wiring regulations.
Depending on the type of insulating material, common maximum allowable temperatures at the surface of the conductor are 60, 75 and 90 degrees Celsius, often with an ambient air temperature of 30°C. In the U.S., 105°C is allowed with ambient of 40°C, for larger power cables, especially those operating at more than 2 kV. Likewise, specific insulations are rated 150, 200 or 250°C.
The allowed current in cables generally needs to be decreased (derated) when the cable is covered with fireproofing material.
For example, the United States National Electric Code, Table 310-16, specifies that up to three 8 AWG copper wires having a common insulating material (THWN) in a raceway, cable, or direct burial has an ampacity of 50 A when the ambient air is 30°C, the conductor surface temperature allowed to be 75°C. A single insulated conductor in air has 70 A rating.
Ampacity rating is normally for continuous current, and short periods of overcurrent occur without harm in most cabling systems. The acceptable magnitude and duration of overcurrent is a more complex topic than ampacity.
When designing an electrical system, one will normally need to know the current rating for the following:- Wires
- Printed Circuit Board traces, where included
- Fuses
- Circuit breakers
- All or nearly all components used
Some devices are limited by power rating, and when this power rating occurs below their current limit, it is not necessary to know the current limit to design a system. A common example of this is lightbulb holders.
[http://en.wikipedia.org/wiki/Ampacity]
Тематики
- электротехника, основные понятия
Синонимы
EN
DE
- Dauerstrombelastbarkeit, f
- Strombelastbarkeit, f
FR
- courant admissible, m
- courant permanent admissible, m
предельно допустимый ток
—
[Я.Н.Лугинский, М.С.Фези-Жилинская, Ю.С.Кабиров. Англо-русский словарь по электротехнике и электроэнергетике, Москва, 1999 г.]Тематики
- электротехника, основные понятия
EN
прочность печатной платы к токовой нагрузке
Свойство печатной платы сохранять электрические и механические характеристики после воздействия максимально допустимой токовой нагрузки на печатный проводник или металлизированное отверстие печатной платы.
[ ГОСТ Р 53386-2009]Тематики
EN
Англо-русский словарь нормативно-технической терминологии > current-carrying capacity
-
13 solution
1) раствор2) растворение3) мат. решение- completely unstable solution - neutrally stable solution - particular solution - pure strategy solution - solution of equation - uniformly stable solutionsolution by inspection — решение подбором, решение проверкой
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direct — directable, adj. directness, n. /di rekt , duy /, v.t. 1. to manage or guide by advice, helpful information, instruction, etc.: He directed the company through a difficult time. 2. to regulate the course of; control: History is directed by a… … Universalium
Direct demonstration — Demonstration Dem on*stra tion, n. [L. demonstratio: cf. F. d[ e]monstration.] 1. The act of demonstrating; an exhibition; proof; especially, proof beyond the possibility of doubt; indubitable evidence, to the senses or reason. [1913 Webster]… … The Collaborative International Dictionary of English
Business and Industry Review — ▪ 1999 Introduction Overview Annual Average Rates of Growth of Manufacturing Output, 1980 97, Table Pattern of Output, 1994 97, Table Index Numbers of Production, Employment, and Productivity in Manufacturing Industries, Table (For Annual… … Universalium
