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1 complex conductor
Англо-русский словарь промышленной и научной лексики > complex conductor
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2 сложный проводник
Русско-английский исловарь по машиностроению и автоматизации производства > сложный проводник
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3 сложный проводник
Mechanics: complex conductor -
4 длительный допустимый ток
- Strombelastbarkeit, f
- 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
Русско-немецкий словарь нормативно-технической терминологии > длительный допустимый ток
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5 длительный допустимый ток
(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
Русско-английский словарь нормативно-технической терминологии > длительный допустимый ток
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6 длительный допустимый ток
- courant permanent admissible, m
- 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
Русско-французский словарь нормативно-технической терминологии > длительный допустимый ток
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7 жила
* * *жи́ла ж. горн.
veinжи́ла выкли́нивается на пове́рхность — a vein crops out to the surfaceвыкли́нивание [вы́ход] жи́лы — the outcrop of a veinжи́ла обнажена́ вы́ходами — a vein is exposed by outcropsоткрыва́ть жи́лу — strike a veinпаде́ние жи́лы — the dip of a veinпростира́ние жи́лы — the strike of a veinбокова́я жи́ла — dropperгла́вная жи́ла — main veinжи́ла ка́беля — ( изолированная и снабжённая механической защитой) cable conductor; (изолированная, но без механической защиты) брит. core of a cable; амер. cable conductorжи́ла ка́беля, контро́льная — pilot wireжи́ла ка́беля, многопро́волочная — stranded cable conductorжи́ла ка́беля, плетё́ная — braided cable conductorжи́ла ка́беля, скру́ченная — twisted cable conductorка́мерная жи́ла — chambered veinконта́ктная жи́ла — contact veinле́стничная жи́ла — ladder [linked] veinпластова́я жи́ла — bedded [sheet] veinпроста́я жи́ла — simple veinрубцо́вая жи́ла — gash veinру́дная жи́ла — ore veinседлови́дная жи́ла — saddle veinсеку́щая жи́ла — cross veinсе́тчатая жи́ла — reticulated veinсло́жная жи́ла — complex veinчёткови́дная жи́ла — beaded vein -
8 составной
1. constituent2. made-up3. multiplied4. complicate5. built-up6. sectional7. split8. unitized9. aggregate10. multiple11. composite; compound; component; constituent12. complex13. compound -
9 соединение
1) General subject: Junc., agglutination, aggregate, alliance, amalgam, association, coaptation (костных обломков при переломе, краёв раны), combination (хим., мат.), composition, compound, confluence (дорог), conflux, congery, conjugation, conjunction, connection, copulation, coupling, coupling (космических кораблей), formation, hook-up, hookup, interconnection, join, joining, joint, junction, juncture, ligature, linkage, linking, marriage, tie, twinning, union, unit, integration, mergence, interjunction4) Medicine: adhesion, aggregation, coalescence (напр. костей), communication, communication (в анатомии), fusion (напр. отломков кости), interlocking5) Obsolete: conjuncture6) Military: body, body of troops, command, (механическое)(химическое) compound, (механическое) connection, (механическое) coupling, force, (войсковое) formation, (механическое) joint, junction (манёвр), large command, link-up (десанта с наземными войсками), major formation, major unit, military force, (воинская) military formation, organization, tactical organization7) Engineering: assemblage, binding, bonding, catenation, conductive track, conductor track, contexture, fastening, highway, integral joint, interconnection track, joining-up, joint assembly, jointing, mating, meeting, (временное) patcher, seaming, spicing, wiring track8) Bookish: adunation, inosculation9) Agriculture: junction (труб), pairing (хромосом)10) Rare: conflation11) Chemistry: articulating, banding, compounding, linking together, species12) Construction: (электрическое) contact, joining together, link, making a connection, bonding bar, clasp13) Anatomy: ally, commissure, raphe14) Mathematics: associating, confounding, coufounding, juxtaposing, juxtaposition, pooling15) Railway term: coalition, combining, turning joint16) Law: joinder17) Economy: pair18) Linguistics: collection19) Automobile industry: bridging, composite, connecting, coupling joint, interconnecting, loose coupling cвoбoднoe, splicing20) Architecture: linking link, union (в т.ч. и соединение частей здания, конструкций или деталей)21) Mining: bond, collar, hookup (сети при электровзрывании), joist, tie-in22) Diplomatic term: connexion ( connection)23) Forestry: assembly, consolidation24) Metallurgy: engagement25) Polygraphy: building, manifolding (разнородных материалов)26) Psychology: concatenation (событий, идей)27) Telecommunications: trunking28) Electronics: abutment joint, bending, brazen seal, grouping (в треугольник), plugging, shunt29) Information technology: bond (электрическое), concatenation, connexion, getting connected, join (операция над отношениями в реляционных базах данных), liaison, link (в сети), nexus, patch (временное)30) Oil: coalescence (нефтяных капелек эмульсии при действии реагента), coupling (постановка( вагона в поезд), перемещение точек), mating (спейсера и платформы), toe31) Special term: suture32) Communications: call setup (напр., с абонентом мобильной связи)33) Astronautics: docking, fitting, formulation, link-up, linking up, strapping34) Geophysics: contact35) Mechanic engineering: connecting box, connecting shaft, governor36) Metrology: bond37) Mechanics: commutation38) Perfume: coherence39) Power engineering: bond40) Business: amalgamation, coupling together, merger41) SAP. rel., relatshp42) Drilling: attachment, close, conn (connection), cplg (coupling)44) Microelectronics: conducting line, conductor line, connector, interconnect line, interconnection line, intraconnection, line, wire, wiring line45) Network technologies: Connection (В среде коммутируемых виртуальных соединений (SVC) объекты управления LANE устанавливают соединение с использованием сигнализации UNI), Connection (Соединение ATM представляет собой объединение (конкатенацию) связей (link) уровня ATM для обеспечения сквозной передачи информации в точке доступа), connective46) Automation: bind, (при) bonding, clutch, (химическое) compound, connection joint, interlinking, linkup, (временное) patch (в сети), tangency (линий)47) Robots: interlock( взаимное), join (действие над отношениями в реляционной базе данных)48) Cables: bond, connection (электрическое), joining (деталей), mixture49) Makarov: apposition, article, articulation, association (действие), blend, blending, combine, commissure (анат., бот), compound (химическое), conjunction (объединение), conjunction (связь), connection (деталей болтами, сваркой, клёпкой и т.п.), connection (эл., радио), connectivity, connexion (деталей болтами, сваркой, клёпкой и т.п.), connexion (эл., радио), coupler, fitment, force (воинское), gang, grafting (досок и т.п.), halving, in-between, interconnexion, interlock, joint (деталей болтами, сваркой, клёпкой и т.п.), seam, splice (внахлёстку), tack, track, wedding50) Gold mining: complex51) Internet: Contention (Состояние, возникающее при обмене данными между двумя или несколькими станциями по одной линии или каналу)52) Electrochemistry: bond53) SAP.tech. edge, relationship54) oil&gas: pipe joint55) Foreign Ministry: tactical formation56) Electrical engineering: bond, splicing (внахлёстку)
См. также в других словарях:
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