-
1 power network
сеть энергоснабжения
сеть электропитания
—
[Я.Н.Лугинский, М.С.Фези-Жилинская, Ю.С.Кабиров. Англо-русский словарь по электротехнике и электроэнергетике, Москва, 1999 г.]Тематики
- электротехника, основные понятия
Синонимы
EN
<>электрическая сеть<>
Совокупность подстанций, распределительных устройств и соединяющих их электрических линий, размещенных на территории района, населенного пункта, потребителя электрической энергии.
[ ГОСТ 19431-84]
<>электрическая сеть<>
Совокупность подстанций, распределительных устройств и соединяющих их линий электропередачи, предназначенная для передачи и распределения электрической энергии.
[ ГОСТ 24291-90]
[ОСТ 45.55-99]
сеть электрическая
Совокупность электрических линий, подстанций, распределительных и переключательных пунктов, связывающих электростанции с потребителями
[Терминологический словарь по строительству на 12 языках (ВНИИИС Госстроя СССР)]
электрическая сеть
Совокупность подстанций, распределительных устройств и соединяющих их электрических линий, размещенных на территории района, населенного пункта, и потребителей электрической энергии.
[ПОТ Р М-016-2001]
[РД 153-34.0-03.150-00]
<>электрическая сеть<>
-
[IEV number 151-12-02]<>
EN
electric network
electric circuit or set of electric circuits, interconnected or having intentional capacitive or inductive coupling between them
NOTE 1 – An electric network can form part of a larger electric network.
NOTE 2 – In IEC 60050-131, the term "electric network" has another meaning relative to circuit theory.
Source: 702-09-05 MOD
[IEV number 151-12-02]FR
réseau électrique, m
circuit électrique ou ensemble de circuits électriques interconnectés ou comportant entre eux des couplages capacitifs ou inductifs intentionnels
NOTE 1 – Un réseau électrique peut faire partie d'un réseau électrique plus grand.
NOTE 2 – Dans la CEI 60050-131, le terme "réseau électrique" a un sens approprié à la théorie des circuits.
Source: 702-09-05 MOD
[IEV number 151-12-02]Параллельные тексты EN-RU
The building is connected to a 23 kV grid.
Здание подключено к электрической сети напряжением 23 кВ.
[Перевод Интент]Тематики
Классификация
>>>EN
- current network
- electric mains
- electric network
- electrical network
- electrical power network
- electrical power supply network
- grid
- network system
- power grid
- power network
DE
FR
- reseau d`energie electrique (sens restreint)
- réseau électrique
энергосистема общего пользования
—
[А.С.Гольдберг. Англо-русский энергетический словарь. 2006 г.]Тематики
EN
Англо-русский словарь нормативно-технической терминологии > power network
-
2 power grid
<>электрическая сеть<>
Совокупность подстанций, распределительных устройств и соединяющих их электрических линий, размещенных на территории района, населенного пункта, потребителя электрической энергии.
[ ГОСТ 19431-84]
<>электрическая сеть<>
Совокупность подстанций, распределительных устройств и соединяющих их линий электропередачи, предназначенная для передачи и распределения электрической энергии.
[ ГОСТ 24291-90]
[ОСТ 45.55-99]
сеть электрическая
Совокупность электрических линий, подстанций, распределительных и переключательных пунктов, связывающих электростанции с потребителями
[Терминологический словарь по строительству на 12 языках (ВНИИИС Госстроя СССР)]
электрическая сеть
Совокупность подстанций, распределительных устройств и соединяющих их электрических линий, размещенных на территории района, населенного пункта, и потребителей электрической энергии.
[ПОТ Р М-016-2001]
[РД 153-34.0-03.150-00]
<>электрическая сеть<>
-
[IEV number 151-12-02]<>
EN
electric network
electric circuit or set of electric circuits, interconnected or having intentional capacitive or inductive coupling between them
NOTE 1 – An electric network can form part of a larger electric network.
NOTE 2 – In IEC 60050-131, the term "electric network" has another meaning relative to circuit theory.
Source: 702-09-05 MOD
[IEV number 151-12-02]FR
réseau électrique, m
circuit électrique ou ensemble de circuits électriques interconnectés ou comportant entre eux des couplages capacitifs ou inductifs intentionnels
NOTE 1 – Un réseau électrique peut faire partie d'un réseau électrique plus grand.
NOTE 2 – Dans la CEI 60050-131, le terme "réseau électrique" a un sens approprié à la théorie des circuits.
Source: 702-09-05 MOD
[IEV number 151-12-02]Параллельные тексты EN-RU
The building is connected to a 23 kV grid.
Здание подключено к электрической сети напряжением 23 кВ.
[Перевод Интент]Тематики
Классификация
>>>EN
- current network
- electric mains
- electric network
- electrical network
- electrical power network
- electrical power supply network
- grid
- network system
- power grid
- power network
DE
FR
- reseau d`energie electrique (sens restreint)
- réseau électrique
Англо-русский словарь нормативно-технической терминологии > power grid
-
3 power contactor
контактор (механический) 1
Контактный коммутационный аппарат с единственным положением покоя, с управлением не вручную, способным включать, проводить и отключать токи в нормальных условиях цепи, в том числе при рабочих перегрузках.
МЭК 60050(441-14-33).
Примечание. Контакторы можно характеризовать способом, которым обеспечивается создание усилия для замыкания главных контактов
[ ГОСТ Р 50030. 1-2000 ( МЭК 60947-1-99)]
контактор
Двухпозиционный аппарат с самовозвратом, предназначенный для частых коммутаций токов, не превышающих токи перегрузки, и приводимый в действие двигательным приводом.
Примечание. Для аналогичных аппаратов без самовозврата следует применять термин «Контактор без самовозврата».
[ ГОСТ 17703-72]
контактор
Выключатель для дистанционного включения, отключения и переключения силовых электрических цепей
[Терминологический словарь по строительству на 12 языках (ВНИИИС Госстроя СССР)]EN
(mechanical) contactor
a mechanical switching device having only one position of rest, operated otherwise than by hand, capable of making, carrying and breaking currents under normal circuit conditions including operating overload conditions
NOTE – Contactors may be designated according to the method by which the force for closing the main contacts is provided.
[IEV number 441-14-33]FR
contacteur (mécanique)
appareil mécanique de connexion ayant une seule position de repos, commandé autrement qu'à la main, capable d'établir, de supporter et d'interrompre des courants dans les conditions normales du circuit, y compris les conditions de surcharge en service
NOTE – Les contacteurs peuvent être désignés suivant la façon dont est fourni l'effort nécessaire à la fermeture des contacts principaux.
[IEV number 441-14-33]1 Должно быть " контактный"
См., например, выключатель (контактный) - (mechanical) switch
Коммутационные аппараты следует классифицировать на контактные и полупроводниковые (solid-state)
[Интент]1. Контактор на относительно небольшой номинальный ток, это такой же коммутационный аппарат, как и пускатель, но без теплового реле (можно сказать, что пускатель это контактор плюс тепловое реле).
2. Контактор на большой номинальный ток выглядит совсем иначе
Отечественный контактор КТ-6063Число полюсов: 3
Номинальное напряжение главной цепи: 380 В
Номинальный ток главной цепи: 1000 А
Номинальное напряжение катушки: 380 В переменного тока
Контакторы электромагнитные серии КТ 6000 с естественным воздушным охлаждением предназначены для включения и отключения приемников электрической энергии на номинальное напряжение до 380 В переменного тока частоты 50 и 60Гц.
Используются в составе оборудования для включения мощных электрических машин и в аппаратуре автоматического включения резерва (АВР).3. Контакторами называют также коммутационные аппараты, коммутационная способность которых больше коммутационной способности реле (см. рис. ниже)
[Интент]
Рис. Tyco ElectronicsПараллельные тексты EN-RU
Although contactors are not strictly relays they have the same design principles. Like relays, they are remote controlled switches.
The difference is the considerably higher input power consumption, higher switching capacity, and larger size.
[Tyco Electronics]Хотя, строго говоря, контакторы не являются реле, их конструкция имеет много общего с конструкцией реле. Также как и реле, они представляют собой коммутационный аппарат с дистационным управлением.
Отличие состоит в том, что их входная цепь потребляет значительно больший ток, они имеют существенно большую коммутационную способность и их размеры также больше размеров реле.
[Перевод Интент]Недопустимые, нерекомендуемые
Тематики
Действия
Неправильно:- замыкать контактор; - размыкать контакторСинонимы
EN
- contact-maker
- contactor
- electric contactor
- electromechanical contactor
- M/C
- magnetic contactor
- mechanical contactor
- power contactor
DE
FR
контактор общего назначения
-
[Интент]
Тематики
EN
Англо-русский словарь нормативно-технической терминологии > power contactor
-
4 having
1. n владение, обладание2. n обыкн. редк. имущество, собственность; пожитки3. n шотл. часто поведение; манеры4. a диал. алчный, скупой, корыстныйСинонимический ряд:1. keeping (adj.) containing; grasping; gripping; holding; hugging; keeping; maintaining; occupying; retaining2. bribing (verb) bribing; buying; buying off; fixing; sopping; squaring; tampering with3. carrying (verb) carrying; displaying; exhibiting4. commanding (verb) boasting; commanding5. delivering (verb) bearing; bring forth; delivering6. engaging (verb) carry on; engaging; indulging; partaking; participating7. fooling (verb) beguiling; betraying; bluffing; deceiving; deluding; duping; fooling; humbugging; misleading; tricking8. getting (verb) acquiring; annexing; chalking up; compassing; gaining; getting; landing; obtaining; picking up; procuring; pulling; securing; winning9. giving (verb) giving; holding; staging10. including (verb) comprising; consist of; containing; embodying; embracing; encompassing; including; involving; subsuming; take in; taking in11. knowing (verb) appreciating; apprehending; comprehending; grasping; knowing; understanding12. letting (verb) allowing; leaving; letting; permitting; suffering13. outwitting (verb) outfoxing; outmaneuvering; outreaching; outsmarting; outthinking; outwitting; overreaching; undoing14. owning (verb) bearing; enjoying; holding; owning; possessing; retaining15. seeing (verb) experiencing; feeling; go through; meet with; seeing; sustaining; tasting; undergoing -
5 having the power
Военный термин: стоящий у власти -
6 having signatory power
Англо-русский экономический словарь > having signatory power
-
7 having the power
-
8 electrical power network
<>электрическая сеть<>
Совокупность подстанций, распределительных устройств и соединяющих их электрических линий, размещенных на территории района, населенного пункта, потребителя электрической энергии.
[ ГОСТ 19431-84]
<>электрическая сеть<>
Совокупность подстанций, распределительных устройств и соединяющих их линий электропередачи, предназначенная для передачи и распределения электрической энергии.
[ ГОСТ 24291-90]
[ОСТ 45.55-99]
сеть электрическая
Совокупность электрических линий, подстанций, распределительных и переключательных пунктов, связывающих электростанции с потребителями
[Терминологический словарь по строительству на 12 языках (ВНИИИС Госстроя СССР)]
электрическая сеть
Совокупность подстанций, распределительных устройств и соединяющих их электрических линий, размещенных на территории района, населенного пункта, и потребителей электрической энергии.
[ПОТ Р М-016-2001]
[РД 153-34.0-03.150-00]
<>электрическая сеть<>
-
[IEV number 151-12-02]<>
EN
electric network
electric circuit or set of electric circuits, interconnected or having intentional capacitive or inductive coupling between them
NOTE 1 – An electric network can form part of a larger electric network.
NOTE 2 – In IEC 60050-131, the term "electric network" has another meaning relative to circuit theory.
Source: 702-09-05 MOD
[IEV number 151-12-02]FR
réseau électrique, m
circuit électrique ou ensemble de circuits électriques interconnectés ou comportant entre eux des couplages capacitifs ou inductifs intentionnels
NOTE 1 – Un réseau électrique peut faire partie d'un réseau électrique plus grand.
NOTE 2 – Dans la CEI 60050-131, le terme "réseau électrique" a un sens approprié à la théorie des circuits.
Source: 702-09-05 MOD
[IEV number 151-12-02]Параллельные тексты EN-RU
The building is connected to a 23 kV grid.
Здание подключено к электрической сети напряжением 23 кВ.
[Перевод Интент]Тематики
Классификация
>>>EN
- current network
- electric mains
- electric network
- electrical network
- electrical power network
- electrical power supply network
- grid
- network system
- power grid
- power network
DE
FR
- reseau d`energie electrique (sens restreint)
- réseau électrique
Совокупность подстанций, распределительных устройств и соединяющих их линий электропередачи, предназначенная для передачи и распределения электрической энергии по ГОСТ 19431
601-01-02
de Electrizitätsversorgungsnetz
en electrical power network
fr réseau d’énergie électrique (sens restraint)
Источник: ГОСТ 24291-90: Электрическая часть электростанции и электрической сети. Термины и определения оригинал документа
Англо-русский словарь нормативно-технической терминологии > electrical power network
-
9 electrical power supply network
<>электрическая сеть<>
Совокупность подстанций, распределительных устройств и соединяющих их электрических линий, размещенных на территории района, населенного пункта, потребителя электрической энергии.
[ ГОСТ 19431-84]
<>электрическая сеть<>
Совокупность подстанций, распределительных устройств и соединяющих их линий электропередачи, предназначенная для передачи и распределения электрической энергии.
[ ГОСТ 24291-90]
[ОСТ 45.55-99]
сеть электрическая
Совокупность электрических линий, подстанций, распределительных и переключательных пунктов, связывающих электростанции с потребителями
[Терминологический словарь по строительству на 12 языках (ВНИИИС Госстроя СССР)]
электрическая сеть
Совокупность подстанций, распределительных устройств и соединяющих их электрических линий, размещенных на территории района, населенного пункта, и потребителей электрической энергии.
[ПОТ Р М-016-2001]
[РД 153-34.0-03.150-00]
<>электрическая сеть<>
-
[IEV number 151-12-02]<>
EN
electric network
electric circuit or set of electric circuits, interconnected or having intentional capacitive or inductive coupling between them
NOTE 1 – An electric network can form part of a larger electric network.
NOTE 2 – In IEC 60050-131, the term "electric network" has another meaning relative to circuit theory.
Source: 702-09-05 MOD
[IEV number 151-12-02]FR
réseau électrique, m
circuit électrique ou ensemble de circuits électriques interconnectés ou comportant entre eux des couplages capacitifs ou inductifs intentionnels
NOTE 1 – Un réseau électrique peut faire partie d'un réseau électrique plus grand.
NOTE 2 – Dans la CEI 60050-131, le terme "réseau électrique" a un sens approprié à la théorie des circuits.
Source: 702-09-05 MOD
[IEV number 151-12-02]Параллельные тексты EN-RU
The building is connected to a 23 kV grid.
Здание подключено к электрической сети напряжением 23 кВ.
[Перевод Интент]Тематики
Классификация
>>>EN
- current network
- electric mains
- electric network
- electrical network
- electrical power network
- electrical power supply network
- grid
- network system
- power grid
- power network
DE
FR
- reseau d`energie electrique (sens restreint)
- réseau électrique
Англо-русский словарь нормативно-технической терминологии > electrical power supply network
-
10 top echelons of power
Общая лексика: высшие эшелоны власти (having spent many years near the top echelons of power, he now has compromising information on someone important) -
11 if a polynomial is arranged in decreasing power of x
Общая лексика: если члены полинома расположены (, but with the terms having zero coefficients omitted, there is said to be a variation in signs whenever two successive terms of the polynomial are opposite in sign)Универсальный англо-русский словарь > if a polynomial is arranged in decreasing power of x
-
12 agent having full power of representation
снабженец с полными полномочиямиБольшой англо-русский и русско-английский словарь > agent having full power of representation
-
13 This Agreement is executed in duplicate, each one having equal power, one for each Party
юр.Н.П. Настоящий Договор составлен в двух экземплярах, каждый из которых имеет одинаковую силу, по одному для каждой из СторонУниверсальный англо-русский словарь > This Agreement is executed in duplicate, each one having equal power, one for each Party
-
14 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
-
15 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
-
16 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
-
17 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
-
18 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
-
19 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)
-
20 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
См. также в других словарях:
power — I UK [ˈpaʊə(r)] / US [ˈpaʊər] noun Word forms power : singular power plural powers *** Metaphor: Having power and controlling someone is like being in a higher position than them. Not having power is like being low down. They have no… … English dictionary
Power users of ICT — The term Power Users of ICT (Information Communication Technology) is used to describe young individuals who have developed sophisticated technology skills. This phenomenon is being explored through a research initiative led by Education… … Wikipedia
Power supply unit (computer) — Power supply unit with top cover removed A power supply unit (PSU) supplies direct current (DC) power to the other components in a computer. It converts general purpose alternating current (AC) electric power from the mains (110 V to… … Wikipedia
Power chord — Component intervals from root perfect fifth root … Wikipedia
Power Rangers Mystic Force — Format Action/Adventure Fantasy Starring Firass Dirani … Wikipedia
Power Pro Kun Pocket series — (パワプロクンポケットシリーズ, abbrv. :パワポケ), or simply called Pawapoke or Power Pocket, is the sub series(spinoff) of the Jikkyō Powerful Pro Yakyū series baseball game developed by Konami. The series is released only on the Nintendo s handheld platform (GBC … Wikipedia
power — [pou′ər] n. [ME pouer < OFr poeir, earlier poter, orig. inf. < VL * potere, to be able, for L posse, to be able: see POTENT] 1. ability to do, act, or produce 2. a specific ability or faculty [the power of hearing] 3. great ability to do,… … English World dictionary
Power of the Pen — is an interscholastic writing league founded by Lorraine B. Merrill in 1986. It is a non profit creative writing program for students in grades seven and eight in the U.S. state of Ohio.ParticipationPower of the Pen is exclusive to the state of… … Wikipedia
Power engineering — Power engineering, also called power systems engineering, is a subfield of electrical engineering that deals with the generation, transmission and distribution of electric power as well as the electrical devices connected to such systems… … Wikipedia
Power Rangers Dino Thunder — Format Action/Adventure Science fantasy Written by Douglas Sloan … Wikipedia
power — pow·er n 1: capability of acting or of producing an effect parties of unequal bargaining power 2 a: authority or capacity to act that is delegated by law or constitution often used in pl. commerce power often cap C&P: the power delegated to… … Law dictionary
