current-carrying conductor

 

токонесущий проводник
—
[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

• current-carrying conductor

 

трехфазное электротехническое устройство
-
[Интент]

EN

three-phase equipment
equipment which is connected to the three line conductors
The neutral conductor is not used as a current-carrying conductor under normal operating conditions.
NOTE - Equipment intended to be connected to all three phases and to the neutral and where the neutral conductor is used as a current-carrying conductor, is considered as three separate single-phase items.
[IEC 61000-3-12, ed. 1.0 (2004-11)]

FR

matériel triphasé
matériel connecté aux trois conducteurs de phase
Dans les conditions normales d'utilisation, le conducteur de neutre n'est pas utilisé en tant que conducteur transportant du courant.
NOTE - Un appareil destiné à être connecté à l’ensemble des trois phases et au neutre et dans lequel le conducteur de neutre est utilisé en tant que conducteur transportant du courant est considéré comme trois matériels monophasés distincts.
[IEC 61000-3-12, ed. 1.0 (2004-11)]

Синонимы

• трехфазное оборудование

EN

• three-phase equipment

FR

• matériel triphasé

 

трехфазное электротехническое устройство
-
[Интент]

EN

three-phase equipment
equipment which is connected to the three line conductors
The neutral conductor is not used as a current-carrying conductor under normal operating conditions.
NOTE - Equipment intended to be connected to all three phases and to the neutral and where the neutral conductor is used as a current-carrying conductor, is considered as three separate single-phase items.
[IEC 61000-3-12, ed. 1.0 (2004-11)]

FR

matériel triphasé
matériel connecté aux trois conducteurs de phase
Dans les conditions normales d'utilisation, le conducteur de neutre n'est pas utilisé en tant que conducteur transportant du courant.
NOTE - Un appareil destiné à être connecté à l’ensemble des trois phases et au neutre et dans lequel le conducteur de neutre est utilisé en tant que conducteur transportant du courant est considéré comme trois matériels monophasés distincts.
[IEC 61000-3-12, ed. 1.0 (2004-11)]

Синонимы

• трехфазное оборудование

EN

• three-phase equipment

FR

• matériel triphasé

1) General subject: electrical conductor (AD)

2) Engineering: conductor, electric conductor

3) Cables: current-carrying conductor

1) Engineering: current-carrying wire

2) Railway term: current-carrying conductor

1) Geophysics: electrical conductor

2) Metrology: current-carrying conductor

 

проходной изолятор без токопровода
-
[ ГОСТ 27744-88]

EN

draw lead bushing
bushing not having an integral current-carrying conductor; a cable or other conductor may be drawn through the bushing and attached to it at one end so that it may subsequently be detached to allow the bushing to be withdrawn
[IEV number 471-02-11]

FR

traversée à conducteur démontable
traversée sans conducteur solidaire; un câble ou un autre conducteur peut être introduit dans le tube central et fixé à une extrémité de façon à pouvoir être ensuite démonté afin de permettre d’enlever la traversée
[IEV number 471-02-11]

16 - Тело изолятора
19 - Полость изолятора
70 - Фланец изолятора

Тематики

• изолятор

Классификация

>>>

EN

• draw lead bushing

DE

• Durchführung ohne Stromleiter
• Durchsteck-Durchführung, f

FR

• traversée à conducteur démontable

 

проходной изолятор без токопровода
-
[ ГОСТ 27744-88]

EN

draw lead bushing
bushing not having an integral current-carrying conductor; a cable or other conductor may be drawn through the bushing and attached to it at one end so that it may subsequently be detached to allow the bushing to be withdrawn
[IEV number 471-02-11]

FR

traversée à conducteur démontable
traversée sans conducteur solidaire; un câble ou un autre conducteur peut être introduit dans le tube central et fixé à une extrémité de façon à pouvoir être ensuite démonté afin de permettre d’enlever la traversée
[IEV number 471-02-11]

16 - Тело изолятора
19 - Полость изолятора
70 - Фланец изолятора

Тематики

• изолятор

Классификация

>>>

EN

• draw lead bushing

DE

• Durchführung ohne Stromleiter
• Durchsteck-Durchführung, f

FR

• traversée à conducteur démontable

 

проходной изолятор без токопровода
-
[ ГОСТ 27744-88]

EN

draw lead bushing
bushing not having an integral current-carrying conductor; a cable or other conductor may be drawn through the bushing and attached to it at one end so that it may subsequently be detached to allow the bushing to be withdrawn
[IEV number 471-02-11]

FR

traversée à conducteur démontable
traversée sans conducteur solidaire; un câble ou un autre conducteur peut être introduit dans le tube central et fixé à une extrémité de façon à pouvoir être ensuite démonté afin de permettre d’enlever la traversée
[IEV number 471-02-11]

16 - Тело изолятора
19 - Полость изолятора
70 - Фланец изолятора

Тематики

• изолятор

Классификация

>>>

EN

• draw lead bushing

DE

• Durchführung ohne Stromleiter
• Durchsteck-Durchführung, f

FR

• traversée à conducteur démontable

 

(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 I_Z
[ 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

• длительно допустимый ток
• допустимый ток

EN

• ampacity (US)
• continuous current
• continuous current-carrying capacity
• current-carrying capacity

DE

• Dauerstrombelastbarkeit, f
• Strombelastbarkeit, f

FR

• courant admissible, m
• courant permanent admissible, m

 

допустимый длительный ток кабеля (провода)
-
[Интент]

допустимый длительный ток (проводника)
Максимальный электрический ток, который проводник способен проводить в продолжительном режиме без превышения его установившейся температурой определённого значения.
Допустимый длительный ток является одной из основных характеристик проводника. Он представляет собой максимальный электрический ток, который проводник может проводить длительно (неделями, месяцами, годами) не перегреваясь. Значение допустимого длительного тока зависит от сечения проводника, материалов из которых выполнены проводник и его изоляция, способов монтажа проводника в электроустановке здания. Допустимый длительный ток проводника фактически является его номинальным током. В электроустановках зданий выполняют защиту проводников от сверхтоков, протекание которых по проводникам сопровождается их перегревом.
[ http://www.volt-m.ru/glossary/letter/%C4/view/11/]

EN

current carrying capacity
maximum current a cable circuit (one or several conductors) can support resulting in a specified increase of the surface temperature of the conductor beyond the ambient temperature, not exceeding the maximum allowed operating temperature of the cable
[IEC 61156-1, ed. 3.0 (2007-06< size="2">)]

FR

courant maximal admissible
courant maximal qu’un circuit de câble (un ou plusieurs conducteurs) peut supporter avec une augmentation spécifiée de la température de surface du conducteur au delà de la température ambiante, et ne dépassant pas la température maximale de fonctionnement autorisée du câble
[IEC 61156-1, ed. 3.0 (2007-06< size="2">)]

Номинальный ток устройств защиты от короткого замыкания может превышать допустимый длительный ток кабеля.
[ ГОСТ Р 50571. 5-94 ( МЭК 364-4-43-77)]

Допустимые длительные токи для проводов и кабелей, проложенных в коробах, а также в лотках пучками, должны приниматься...
[ПУЭ]

Тематики

• кабели, провода...
• электроустановки

EN

• ampere capacity
• current carrying capacity
• current carrying capacity of the cable
• current carrying capacity of the conductors
• current-carrying capacity of the cable

FR

• courant maximal admissible

 

(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 I_Z
[ 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

• длительно допустимый ток
• допустимый ток

EN

• ampacity (US)
• continuous current
• continuous current-carrying capacity
• current-carrying capacity

DE

• Dauerstrombelastbarkeit, f
• Strombelastbarkeit, f

FR

• courant admissible, m
• 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 I_Z
[ 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

• длительно допустимый ток
• допустимый ток

EN

• ampacity (US)
• continuous current
• continuous current-carrying capacity
• current-carrying capacity

DE

• Dauerstrombelastbarkeit, f
• Strombelastbarkeit, f

FR

• courant admissible, m
• courant permanent admissible, m

 

допустимый длительный ток кабеля (провода)
-
[Интент]

допустимый длительный ток (проводника)
Максимальный электрический ток, который проводник способен проводить в продолжительном режиме без превышения его установившейся температурой определённого значения.
Допустимый длительный ток является одной из основных характеристик проводника. Он представляет собой максимальный электрический ток, который проводник может проводить длительно (неделями, месяцами, годами) не перегреваясь. Значение допустимого длительного тока зависит от сечения проводника, материалов из которых выполнены проводник и его изоляция, способов монтажа проводника в электроустановке здания. Допустимый длительный ток проводника фактически является его номинальным током. В электроустановках зданий выполняют защиту проводников от сверхтоков, протекание которых по проводникам сопровождается их перегревом.
[ http://www.volt-m.ru/glossary/letter/%C4/view/11/]

EN

current carrying capacity
maximum current a cable circuit (one or several conductors) can support resulting in a specified increase of the surface temperature of the conductor beyond the ambient temperature, not exceeding the maximum allowed operating temperature of the cable
[IEC 61156-1, ed. 3.0 (2007-06< size="2">)]

FR

courant maximal admissible
courant maximal qu’un circuit de câble (un ou plusieurs conducteurs) peut supporter avec une augmentation spécifiée de la température de surface du conducteur au delà de la température ambiante, et ne dépassant pas la température maximale de fonctionnement autorisée du câble
[IEC 61156-1, ed. 3.0 (2007-06< size="2">)]

Номинальный ток устройств защиты от короткого замыкания может превышать допустимый длительный ток кабеля.
[ ГОСТ Р 50571. 5-94 ( МЭК 364-4-43-77)]

Допустимые длительные токи для проводов и кабелей, проложенных в коробах, а также в лотках пучками, должны приниматься...
[ПУЭ]

Тематики

• кабели, провода...
• электроустановки

EN

• ampere capacity
• current carrying capacity
• current carrying capacity of the cable
• current carrying capacity of the conductors
• current-carrying capacity of the cable

FR

• courant maximal admissible

* * *

заде́лывать [подсоединя́ть] про́вод в разъё́ме — terminate a wire in [to] a connector

заплести́ про́вод, напр. вокру́г друго́го про́вода — weave the wire, e. g., around another wire

зачища́ть про́вод ( снимать изоляцию) — strip a wire

крепи́ть про́вод под конта́ктным болто́м — grip a wire under a terminal screwhead

луди́ть про́вод — tin a wire

надреза́ть про́вод, напр. напи́льником — score the wire, e. g., with a file

про́вод прошивае́т ферромагни́тный серде́чник вчт. — a wire runs through a magnetic core, a core is strung on a wire

а́дресный про́вод вчт. — address wire

про́вод анте́нны, горизонта́льный — flat-top of an antenna

батаре́йный про́вод — battery lead

вво́дный абоне́нтский про́вод — drop wire

возду́шный про́вод — open wire; overhead conductor

про́вод вы́борки ( в ЗУ матричного типа) — drive [select] wire

го́лый про́вод — bare wire, bare connector

про́вод зажига́ния авто — ignition cable, ignition wire

заземля́ющий про́вод — брит. earth(ing) wire; амер. ground(ing) wire

про́вод запре́та ( в ЗУ матричного типа) — inhibit wire

звонко́вый про́вод — bell wire

изоли́рованный про́вод — insulated wire

калибро́ванный про́вод — calibrated lead

компенсацио́нный про́вод — compensating lead

конта́ктный про́вод ( в электротяге) — contact [trolley] wire, contact conductor

контро́льный про́вод — pilot wire

координа́тный про́вод ( в ферритовом кубе) вчт. — coordinate line, coordinate wire

кро́ссовый про́вод свз. — jumper wire

ле́нточный про́вод — strip [ribbon] conductor

лине́йный про́вод — line conductor

про́вод ма́лого сече́ния — light-gauge wire

многопро́волочный про́вод — stranded wire, multiwire [stranded] conductor

монта́жный про́вод — hookup wire

нагревосто́йкий про́вод — high-temperature conductor

неизоли́рованный про́вод — uninsulated wire

нулево́й про́вод — neutral wire

обмо́точный про́вод — magnet wire

обра́тный про́вод — return wire, return conductor

пита́ющий про́вод — feeder, feed wire, power lead

плетё́ный про́вод — braided wire

плю́совый про́вод — plus [positive] wire

подводя́щий про́вод — lead

по́лый про́вод — hollow conductor

разря́дный про́вод вчт. — bit [digit] line, digit wire

скру́ченный про́вод — twisted conductor

про́вод соедине́ния на ма́ссу — брит. earth(ing) wire; амер. ground(ing) wire

про́вод с оплё́ткой — braided wire

сплошно́й про́вод — solid conductor

станцио́нный про́вод тлф. — office wire

про́вод счи́тывания ( в ЗУ матричного типа) — sense wire

съё́мный про́вод вчт. — sense wire

токонесу́щий про́вод — current-carrying wire

тролле́йный про́вод — trolley wire

удлини́тельный про́вод — extension lead

устано́вочный про́вод — installation wire

экрани́рованный про́вод — брит. screened wire; амер. shielded wire

эмалиро́ванный про́вод — enameled(-insulated) wire