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1 ambient cooling
Телекоммуникации: естественное охлаждение -
2 ambient cooling
English-Russian dictionary of modern telecommunications > ambient cooling
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3 ambient cooling
English-Russian dictionary of microelectronics > ambient cooling
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4 ambient cooling
English-Russian dictionary of Information technology > ambient cooling
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5 air
air nвоздухadjustable air outletрегулируемый насадок индивидуальной вентиляцииaerodrome air pictureвоздушная обстановка в зоне аэродромаAerodromes, Air Routes and Ground Aids SectionСекция аэродромов, воздушных трасс и наземных средств(ИКАО) African Air Tariff ConferenceАфриканская конференция по авиационным тарифамaids to air navigationнавигационные средстваair agencyавиационное агентствоair agreementавиационное соглашениеair alert warningсигнализация аварийной обстановки в полетеair baseбаза для обслуживания полетовair base groupбригада наземного обслуживанияair bearingвоздушная опораair bearing gyroscopeгироскоп с воздушной опорой осейair billполетный листair blastвоздушная ударная волнаair bleedотбор воздухаair bleed holeокно отбора воздухаair bleed portотверстие отбора воздухаair bleed systemсистема отбора воздуха(от компрессора) air borne systemбортовая системаair bottle cartтележка с баллонами сжатого воздухаair brake systemсистема воздушных тормозовair bridgeтелескопический трапair cargoгруз для воздушной перевозкиair carriageвоздушная перевозкаair carriage contractконтракт на воздушную перевозкуair carrierвоздушный перевозчикair carrier tariffтарифная ставка, установленная авиаперевозчикомAir Carrier Tariffs SectionСекция тарифов воздушных перевозчиков(ИКАО) air charging connectionштуцер зарядки воздухомair charter carrierчартерный авиаперевозчикair circulationциркуляция воздухаair clutterпомехи от авиационных средств связиair codesвоздушный кодексair collectorвоздушный коллекторair commerceавиационная коммерческая деятельностьair communicationвоздушное сообщениеair communication centerцентр обеспечения воздушной связиair communicatorоператор авиационной связиair compass swingingсписание девиации компаса в полетеair conditioningкондиционирование воздухаair conditioning systemсистема кондиционирования воздуха(в кабине воздушного судна) air conflict searchисследование конфликтной ситуации в воздушном движенииair controlдиспетчерское обслуживание воздушного пространстваair conveyanceвоздушная перевозкаair coolerвоздушный радиаторair coolingвоздушное охлаждениеair cooling systemсистема воздушного охлажденияair corridorвоздушный коридорair crashавиационное происшествиеair cushionвоздушная подушкаair cushion effectэффект воздушной подушкиair damperпневматический амортизаторair dataданные о результатах испытания в воздухеair data computerвычислитель воздушных сигналовair data computer systemсистема сбора воздушных сигналовair deficiencyнедостаток воздухаair delivery pipeвоздуховодair densityплотность воздухаair diluterавтомат подсоса воздухаair displayэкран изображения воздушной обстановкиair distortionвозмущение воздушного потокаair distress communicationаварийная связь с воздушным судномair dragсопротивление воздухаair eddyзавихрение воздухаair entityавиационная организацияair fareтариф на воздушную перевозку пассажираair feederпатрубок подвода воздухаair ferry routeмаршрут перегонки воздушных судовair filterвоздушный фильтрair flapвоздушная заслонкаair fleetвоздушный флотair flowвоздушный потокair flow characteristicхарактеристика расхода воздухаair flow ductвоздушный трактair flow interactionвзаимодействие воздушных потоковair flow mixerсмеситель потоков воздухаair flow rateстепень расхода воздухаair freightавиационный грузair freight billгрузовая авианакладнаяair freighterгрузовое воздушное судноair freight forwarderагентство по отправке грузов воздушным транспортомair freight liftперевозка грузов по воздухуair freight terminalгрузовой комплекс аэропортаair gateвоздушные воротаair grillрешетка для забора воздухаair gustпорыв воздушной массыair heaterобогреватель воздухаair humidifying systemсистема увлажнения воздухаair induction systemсистема забора воздухаair industryавиационная промышленностьair inletбортовой приемник статического давленияair inlet ductвходное устройствоair inlet screenсетчатый фильтр воздухоприемникаair inlet sectionвходное воздушное устройство(двигателя) air intakeвоздухозаборникair intake bladeзаглушка воздухозаборникаair intake diffuserдиффузор воздухозаборникаair intake ductканал воздухозаборникаair intake duct heatingобогрев канала воздухозаборникаair intake fixed lipнерегулируемая кромка воздухозаборникаair intake hazard areaопасная зона перед воздухозаборникомair intake heaterобогреватель воздухозаборникаair intake pressureдавление на входе в воздухозаборникair intake spikeконус воздухозаборника(двигателя) air intake spike controlуправление конусом воздухозаборникомair intake surgeпомпаж в воздухозаборникеair intake throatминимальное проходное сечение воздухозаборникаair intake wedgeклин воздухозаборникаair intrusionнарушение воздушного пространстваair labyrinth seal ringкольцо воздушного лабиринтного уплотненияair laneвоздушная трассаair lawвоздушное правоAir laws regulationsВоздушный кодексair legучасток маршрута полетаair legislationавиационное законодательствоair lineвоздушная линияAir Line Pilot'sАссоциация пилотов гражданской авиацииair lockвоздушная пробкаair loiteringвоздушное барражированиеair mailвоздушная почтаair manifoldвоздушный коллекторair manifold pipeвоздушный коллекторair markerаэронавигационный маркерair massвоздушная массаair medicineавиационная медицинаair meterрасходомер воздухаair missсближение в полетеair mixture controlрегулирование топливовоздушной смесиair movementвоздушная перевозкаair navigationаэронавигацияair navigation agreementаэронавигационное соглашениеAir Navigation BureauАэронавигационное управлениеair navigation chargeаэронавигационный сборair navigation chartаэронавигационная картаAir Navigation CommissionАэронавигационная комиссияAir Navigation CommitteeАэронавигационный комитетair navigation computerаэронавигационный вычислительAir Navigation ConferenceАэронавигационная конференцияair navigation facilitiesаэронавигационные средстваair navigation planаэронавигационный планair navigation protractorаэронавигационный транспортирair navigation regionрайон аэронавигацииair navigation schoolштурманская школаair navigation serviceаэронавигационное обслуживаниеair navigation tableтаблица аэронавигационных расчетовair navigatorштурманair observationнаблюдение за воздушным пространствомair obstacleпрепятствие на пути полетаair operation for hireвоздушная перевозка по наймуair operation for remunerationвоздушная перевозка за платуAir Passenger Tariffсборник пассажирских тарифов на воздушную перевозкуair pathвоздушная трассаair patrol zoneзона воздушного барражированияair patterавиационная фразеологияair pilotageсамолетовождениеair piracyвоздушное пиратствоair planплан развития воздушных перевозокair plotсхема воздушной обстановкиair pocketвоздушная ямаair pollutionзагрязнение атмосферыair positionположение в воздушном пространствеair position indicatorуказатель местоположения в полетеair pressureдавление воздухаair pressure valveвоздушный редукторair pressurization systemсистема наддува(кабины) air priorityочередность полетовair refuellingдозаправка топливом в полетеair release hoseшланг для стравливания воздухаair reportдонесение с бортаair rescue kitкомплект аварийно-спасательного оборудованияair rote limitationsограничения на воздушных трассахair routeвоздушная трассаair route chartмаршрутная картаair route forecastпрогноз по маршрутуair route networkсеть воздушных трассair safetyбезопасность воздушного движенияair safety rulesинструкция по обеспечению безопасности полетовair sealвоздушное уплотнениеair searchпоиск с воздухаair serviceавиаперевозкиair sextantавиационный секстантair showавиационная выставкаair shuttleчелночные авиаперевозкиair sideвоздушная зонаair situationвоздушная обстановкаair situation displayдисплей индикации воздушной обстановкиair soundingзондирование атмосферыair spacingраспределение воздушного пространства(для обеспечения контроля полетов) air stabilityустойчивость воздушной массыair stairsавиационный трапair starterвоздушный стартерair startingзапуск в воздухеair starting systemвоздушная система запуска двигателейair stripВППair supremacyгосподство в воздухеair surveillance systemсистема воздушного наблюденияair surveyнаблюдение с воздухаair targetвоздушная цельair target indicationиндикация воздушных целейair tariff clauseстатья об авиационных тарифахair taxiвоздушное таксиair taxiingруление по воздухуair ticket portionкупон авиационного билетаair tireпневматическая шинаair trackвоздушная трассаair trafficвоздушное движениеair traffic audio simulation systemаудиовизуальная система имитации воздушного движения(для тренажеров) air traffic control1. ответчик системы УВД2. управление воздушным движением Air Traffic Control Advisory CommitteeКонсультативный комитет по управлению воздушным движениемair traffic control areaзона управления воздушным движениемair traffic control boundaryграница зоны управления воздушным движениемair traffic control centerдиспетчерский центр управления воздушным движениемair traffic control clearanceразрешение службы управления воздушным движениемair traffic controllerдиспетчер службы управления воздушным движениемair traffic control loopцикл управления воздушным движениемair traffic control proceduresправила управления воздушным движениемair traffic control radarрадиолокатор управления воздушным движениемair traffic control routingпрокладка маршрута полета согласно указанию службы управления движениемair traffic control serviceслужба управления воздушным движениемair traffic control systemсистема управления воздушным движениемair traffic control unitпункт управления воздушным движениемair traffic conventionконвенция по управлению воздушным движениемair traffic densityплотность воздушного движенияair traffic environmentусловия выполнения воздушных перевозокair traffic flow managementуправление потоком воздушного движенияair traffic guideнаставление по управлению воздушным движениемair traffic hubузловой район воздушного движенияair traffic patternсхема воздушного движенияair traffic performanceобъем воздушных перевозокair traffic proceduresправила воздушного движенияair traffic schoolшкола подготовки специалистов по управлению воздушным движениемair traffic serviceслужба воздушного движенияair traffic service chartсхема обслуживания воздушного движенияair traffic service routeмаршрут, обслуживаемый службой воздушного движенияair traffic services expertэксперт по обслуживанию воздушного движенияair traffic services proceduresправила обслуживания воздушного движенияair traffic services unitпункт обслуживания воздушного движенияair transportвоздушный транспортair TransportАссоциация воздушного транспорта СШАair transport agreementсоглашение о воздушном сообщенииAir Transportation BoardКомитет по воздушным перевозкамAir Transport BureauАвиатранспортное управлениеAir Transport CommitteeКомитет по воздушным перевозкамair transport enterpriseавиатранспортное предприятиеair transport facilitationуменьшение ограничений в воздушных перевозкахair transport insuranceстрахование авиаперевозокair transport movement tableграфик движения воздушного транспортаair transport operationsавиатранспортные перевозкиair transport pilotсвидетельство пилота транспортной авиацииair transport serviceавиаперевозкиAir Transport Studies SectionСекция исследования воздушного транспорта(ИКАО) air transport wingавиатранспортное подразделениеair travelвоздушное путешествиеair travel cardмаршрутный лист воздушного путешествияair travel planграфик воздушного путешествияair trialиспытание в воздухеair tripвоздушное путешествиеair turbineвоздушная турбинаair turbulenceвоздушная турбулентностьair unitавиационное подразделениеair unworthinessнепригодность к летной эксплуатацииair valveвоздушный клапанair velocityскорость движения воздушной массыair waveвоздушная волнаair waybillавиагрузовая накладнаяairways and air communications serviceслужба воздушных сообщенийalternate air routeзапасной маршрут полетаambient airокружающий воздухambient air temperatureтемпература окружающего воздухаannular air intakeкольцевой воздухозаборникascending airвосходящий поток воздухаball-type air outletнасадок шарового типа индивидуальной вентиляцииbearing air sealвоздушное уплотнение опорыbifurcated air bypass ductраздвоенный воздушный трактbifurcated air intakeвоздухозаборник, раздвоенный на выходеbird strike to an air craftстолкновение птиц с воздушным судномbleed airстравливать воздушную пробкуbleed air receiverресивер отбора воздухаbleed off airперепускать воздухboundary-layer airвоздух в пограничном слоеbreather airвоздух суфлированияbring to rest airзатормаживать воздушный потокcenter of air pressureцентр аэродинамического давленияCentral Agency of Air ServiceГлавное агентство воздушных сообщенийcertificated air carrierзарегистрированный авиаперевозчикcivil air operationsполеты гражданских воздушных судовcivil air regulationsруководство по полетам воздушных судов гражданской авиацииcivil air transportгражданский воздушный транспортclear air turbulenceтурбулентность в атмосфере без облаковcold airхолодный фронт воздухаcommercial air carrierкоммерческий авиаперевозчикcommercial air transportкоммерческий воздушный транспортcommercial air transportationкоммерческая воздушная перевозкаcommercial air transport operationsкоммерческие воздушные перевозкиcommuter air carrierавиаперевозчик на короткие расстоянияcompressor air flow ductвторой контурcompressor-bleed airвоздух, отбираемый от компрессораconditioned air emergency valveаварийный клапан сброса давления в системе кондиционированияcontinuous air bleedпостоянный отбор воздухаcooling air outlet tubeпатрубок отвода охлаждающего воздухаdead airневозмущенный воздухdetermine air in a systemустанавливать наличие воздушной пробки в системеdischarge air overboardотводить воздух в атмосферуdominant air modeосновной режим воздушного пространстваduct air temperatureтемпература воздуха в трубопроводеearth air stripгрунтовая ВППeffective air pathдействующая воздушная трассаenforce rules of the airобеспечивать соблюдение правил полетовengine air bleed flangeфланец отбора воздуха от двигателяEuropean Air carries AssemblyАссамблея европейских авиаперевозчиковEuropean Air Navigation Planning GroupЕвропейская группа аэронавигационного планированияfirst freedom of the airпервая степень свободы воздухаfixed-geometry air intakeнерегулируемый воздухозаборникfixed-lip air intakeвоздухозаборник с фиксированной передней кромкойflame tube air holeокно подвода воздуха к жаровой трубеflow of air trafficпоток воздушного движенияforced air coolingпринудительное охлаждениеfreedom of the airстепень свободы воздухаgain the air supremacyзавоевывать господство в воздухеGeneral Department of International Air Services of AeroflotЦентральное управление международных воздушных сообщений гражданской авиацииgenerator air inletвоздухозаборник обдува генератораground air starting unitаэродромная установка для запускаhigh density air trafficинтенсивное воздушное движениеidentify the aerodrome from the airопознавать аэродром с воздухаindicate the location from the airопределять местоположение с воздухаintermodal air carriageсмешанная воздушная перевозкаInternational Air CarrierМеждународная ассоциация авиаперевозчиковinternational air routeмеждународная авиационная трассаInternational Air TransportМеждународная ассоциация воздушного транспортаInternational commission for Air NavigationМеждународная комиссия по аэронавигацииInternational Federation of Air Line Pilots' AssociationsМеждународная федерация ассоциаций линейных пилотовInternational Federation of Air Traffic Controllers' AssociationsМеждународная федерация ассоциаций авиадиспетчеровintersection of air routesпересечение воздушных трассlight airразреженный воздухlong-range air navigation systemсистема дальней радионавигацииlow air areaнижнее воздушное пространствоlow air routeмаршрут нижнего воздушного пространстваmain airвоздух, проходящий через первый контурmaintenance-free air bearingизносостойкий воздушный подшипникmass air flowмассовый расход воздухаmid air collision controlпредупреждение столкновений в воздухеmixing airсмесительный воздухmultishock air intakeмногоскачковый воздухозаборникNational Air CarrierАссоциация воздушных перевозчиковnormal airстандартная атмосфераnose air intakeносовой воздухозаборникopen airнаружный воздухoutside air temperatureтемпература наружного воздухаoutside air temperature indicatorуказатель температуры наружного воздухаoverflow air trafficперегружать воздушное движениеpipeline to air intakeтрубопровод подвода воздуха к воздухозаборникуpractical air navigationпрактическая аэронавигацияprivate air stripчастная ВППProcedures for Air Navigation ServicesПравила аэронавигационного обслуживанияprognostic upper air chartкарта прогнозов состояния верхних слоев атмосферыram airзаторможенный поток воздухаram air assemblyзаборник воздуха для надува топливных баков от скоростного напораram air coolingохлаждение набегающим потоком воздухаram air temperatureтемпература набегающего потока воздухаrarefied airразреженный воздухregional air navigationрегиональная аэронавигацияregional air navigation meetingрегиональное аэронавигационное совещание(ИКАО) release airстравливать давление воздухаretractable air stepsвыдвижная бортовая лестницаrough airвоздух в турбулентном состоянииrough air mechanismмеханизм для создания условий полета в нестабильной атмосфереroute air navigation facilitiesмаршрутные аэронавигационные средстваrules of the airправила полетовscheduled air serviceрегулярные воздушные перевозкиsealing air annulusкольцевой канал подвода воздуха к лабиринтному управленияsealing air passageканал подвода воздуха к лабиринтному уплотнениюsecond freedom of the airвторая степень свободы воздухаshipment by airтранспортировка по воздухуstable airустойчивый воздушный потокstandard airстандартная атмосфераstatic air temperatureтемпература возмущенной воздушной массыstill airнулевой ветерtactical air navigationтактическая аэронавигацияtactical air navigation facilitiesтактические аэронавигационные средстваtactical air navigation systemсистема ближней аэронавигацииtap air from the compressorотбирать воздух от компрессораthrottle airвоздушный дроссельthrough air serviceпрямое воздушное сообщениеtime in the airналет часовtotal air temperatureполная температура потокаtwo-dimensional air intakeдвухмерный воздухозаборникtwo-shock air intakeдвухскачковый воздухозаборникundisturbed airневозмущенная атмосфераunifired air cargo tariffединая авиационная грузовая тарифная ставкаunifired air passenger tariffединая авиационная пассажирская тарифная ставкаuniversal air travel planпрограмма организации авиационных путешествийupper airверхнее воздушное пространствоupper air areaверхнее воздушное пространствоupper air routeмаршрут верхнего воздушного пространстваupper air temperatureтемпература верхних слоев атмосферыvariable lip air intakeвоздухозаборник с регулируемой передней кромкойvent airдренажироватьvent air inletвоздухозаборникventilating air outletнасадок индивидуальной вентиляции -
6 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
-
7 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
-
8 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
-
9 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
-
10 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
-
11 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)
-
12 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
-
13 current-carrying capacity
(длительный) допустимый ток
Максимальное значение электрического тока, который может протекать длительно по проводнику, устройству или аппарату при определенных условиях без превышения определенного значения их температуры в установившемся режиме
[ ГОСТ Р МЭК 60050-826-2009]
Этот ток обозначают IZ
[ ГОСТ Р 50571. 1-2009 ( МЭК 60364-1: 2005)]EN
(continuous) current-carrying capacity
ampacity (US)
maximum value of electric current which can be carried continuously by a conductor, a device or an apparatus, under specified conditions without its steady-state temperature exceeding a specified value
[IEV number 826-11-13]
ampacity
The current in amperes that a conductor can carry continuously under the conditions of use without exceeding its temperature rating.
[National Electrical Cod]FR
courant (permanent) admissible, m
valeur maximale du courant électrique qui peut parcourir en permanence, un conducteur, un dispositif ou un appareil, sans que sa température de régime permanent, dans des conditions données, soit supérieure à la valeur spécifiée
[IEV number 826-11-13]Ampacity, the term is defined as the maximum amount of current a cable can carry before sustaining immediate or progressive deterioration. Also described as current rating or current-carrying capacity, is the RMS electric current which a device can continuously carry while remaining within its temperature rating. The ampacity of a cable depends on:
- its insulation temperature rating;
- conductor electrical properties for current;
- frequency, in the case of alternating currents;
- ability to dissipate heat, which depends on cable geometry and its surroundings;
- ambient temperature.
Electric wires have some resistance, and electric current flowing through them causes voltage drop and power dissipation, which heats the cable. Copper or aluminum can conduct a large amount of current before melting, but long before the conductors melt, their insulation would be damaged by the heat.
The ampacity for a power cable is thus based on physical and electrical properties of the material & construction of the conductor and of its insulation, ambient temperature, and environmental conditions adjacent to the cable. Having a large overall surface area may dissipate heat well if the environment can absorb the heat.
In a long run of cable, different conditions govern, and installation regulations normally specify that the most severe condition along the run governs the cable's rating. Cables run in wet or oily locations may carry a lower temperature rating than in a dry installation. Derating is necessary for multiple circuits in close proximity. When multiple cables are near, each contributes heat to the others and diminishes the amount of cooling air that can flow past the individual cables. The overall ampacity of the insulated conductors in a bundle of more than 3 must be derated, whether in a raceway or cable. Usually the de-rating factor is tabulated in a nation's wiring regulations.
Depending on the type of insulating material, common maximum allowable temperatures at the surface of the conductor are 60, 75 and 90 degrees Celsius, often with an ambient air temperature of 30°C. In the U.S., 105°C is allowed with ambient of 40°C, for larger power cables, especially those operating at more than 2 kV. Likewise, specific insulations are rated 150, 200 or 250°C.
The allowed current in cables generally needs to be decreased (derated) when the cable is covered with fireproofing material.
For example, the United States National Electric Code, Table 310-16, specifies that up to three 8 AWG copper wires having a common insulating material (THWN) in a raceway, cable, or direct burial has an ampacity of 50 A when the ambient air is 30°C, the conductor surface temperature allowed to be 75°C. A single insulated conductor in air has 70 A rating.
Ampacity rating is normally for continuous current, and short periods of overcurrent occur without harm in most cabling systems. The acceptable magnitude and duration of overcurrent is a more complex topic than ampacity.
When designing an electrical system, one will normally need to know the current rating for the following:- Wires
- Printed Circuit Board traces, where included
- Fuses
- Circuit breakers
- All or nearly all components used
Some devices are limited by power rating, and when this power rating occurs below their current limit, it is not necessary to know the current limit to design a system. A common example of this is lightbulb holders.
[http://en.wikipedia.org/wiki/Ampacity]
Тематики
- электротехника, основные понятия
Синонимы
EN
DE
- Dauerstrombelastbarkeit, f
- Strombelastbarkeit, f
FR
- courant admissible, m
- courant permanent admissible, m
предельно допустимый ток
—
[Я.Н.Лугинский, М.С.Фези-Жилинская, Ю.С.Кабиров. Англо-русский словарь по электротехнике и электроэнергетике, Москва, 1999 г.]Тематики
- электротехника, основные понятия
EN
прочность печатной платы к токовой нагрузке
Свойство печатной платы сохранять электрические и механические характеристики после воздействия максимально допустимой токовой нагрузки на печатный проводник или металлизированное отверстие печатной платы.
[ ГОСТ Р 53386-2009]Тематики
EN
Англо-русский словарь нормативно-технической терминологии > current-carrying capacity
-
14 air
1) воздух, воздушная среда, атмосфера2) воздушный3) вентилировать, проветривать•- ascending air - auxiliary air - community air - compressed air - control air - cooling air - crisp air - dead air - descending air - dust-loaded air - entrained air - entrapped air - exhaust air - foul air - free air - incoming air - outgoing air - ozonized air - standard air - suction air - transparent air - used air - vitiated air* * *воздух- accidental airair and gas — проф. кислород и ацетилен для газовой сварки
- ambient air
- atmospheric air
- combustion air
- compressed air
- conditioned air
- cooling air
- damp air
- delivery air
- dry air
- dust-laden air
- entrained air
- entrapped air
- excess air
- exhaust air
- exit air
- extract air
- false air
- fresh air
- high air
- humid air
- indoor air
- induced air
- inside air
- leaving air
- low air
- make-up air
- mixed air
- moist air
- outdoor air
- outside air
- primary air
- recirculated air
- relief air
- replacement air
- respiration air
- return air
- rinsing air
- room air
- saturated air
- secondary air
- space air
- stagnant air
- standard air
- supersaturated air
- supply air
- surrounding air
- tempered air
- transfer air
- treated air
- ventilation air
- vitiated air
- wet air -
15 échauffement
повышение температуры
-
[IEV number 151-16-26]EN
temperature rise
difference between the temperature of the part under consideration and a reference temperature
NOTE – The reference temperature may be for example the ambient air temperature or the temperature of a cooling fluid.
[IEV number 151-16-26]FR
échauffement, m
différence entre la température de la partie considérée et une température de référence
NOTE – La température de référence peut être par exemple la température de l'air ambiant ou celle d’un fluide de refroidissement.
[IEV number 151-16-26]EN
DE
FR
превышение температуры
К превышениям температуры относят превышение температуры отдельных элементов трансформатора над температурой внешней охлаждающей среды (МЭС 421-08-01).
[ ГОСТ 30830-2002]EN
temperature rise
the difference between the temperature of the part under consideration and the temperature of the cooling air or of the water at the intake of the cooling equipment, for air-cooled or water-cooled transformers or reactors respectivel
[IEV number 421-08-01]FR
échauffement
différence entre la température de la partie considérée et la température de l'air de refroidissement ou celle de l'eau à l'entrée des réfrigérants, respectivement pour les transformateurs ou les bobines d'inductance refroidis à l'air ou à l'eau
[IEV number 421-08-01]Тематики
Классификация
>>>EN
DE
FR
Франко-русский словарь нормативно-технической терминологии > échauffement
-
16 temperature rise
повышение температуры
-
[IEV number 151-16-26]EN
temperature rise
difference between the temperature of the part under consideration and a reference temperature
NOTE – The reference temperature may be for example the ambient air temperature or the temperature of a cooling fluid.
[IEV number 151-16-26]FR
échauffement, m
différence entre la température de la partie considérée et une température de référence
NOTE – La température de référence peut être par exemple la température de l'air ambiant ou celle d’un fluide de refroidissement.
[IEV number 151-16-26]EN
DE
FR
превышение температуры
К превышениям температуры относят превышение температуры отдельных элементов трансформатора над температурой внешней охлаждающей среды (МЭС 421-08-01).
[ ГОСТ 30830-2002]EN
temperature rise
the difference between the temperature of the part under consideration and the temperature of the cooling air or of the water at the intake of the cooling equipment, for air-cooled or water-cooled transformers or reactors respectivel
[IEV number 421-08-01]FR
échauffement
différence entre la température de la partie considérée et la température de l'air de refroidissement ou celle de l'eau à l'entrée des réfrigérants, respectivement pour les transformateurs ou les bobines d'inductance refroidis à l'air ou à l'eau
[IEV number 421-08-01]Тематики
Классификация
>>>EN
DE
FR
Англо-русский словарь нормативно-технической терминологии > temperature rise
-
17 air
1) воздух
2) вентиляционный
3) воздухоспускный
4) пневматичееский
5) пневматический
6) проветривать
7) сборный
8) <aeron.> авиа-
9) воздушный
10) отбойный
11) дроссельный
– access for air
– actuating air
– admit air
– air ambulance
– air analyzer
– air bag
– air balance
– air base
– air bath
– air beacon
– air binder
– air blast
– air blasting
– air bleed valve
– air bleeder
– air blower
– air bluing
– air box
– air breaking
– air bumper
– air calcination
– air capacitor
– air celestial navigation
– air cell
– air change
– air choke
– air circulation
– air classifier
– air classifying
– air cleaning
– air compressor
– air conditioning
– air cooler
– air cooling
– air crossing
– air curtain
– air cushion
– air damper
– air dash-pot
– air distance recorder
– air distributor
– air door
– air drag
– air draught
– air drier
– air duct
– air ejector condenser
– air entrapment
– air evacuation line
– air filter
– air flow classifier
– air freshener
– air gap
– air gauge
– air hardening
– air heading
– air heater
– air hoist
– air insulation
– air intake
– air jet
– air jigging
– air launching
– air line
– air load
– air lock
– air manifold
– air marker
– air mass
– air medical service
– air meteorological service
– air moisture
– air motor
– air navigation
– air outlet
– air partition
– air passage
– air pipe
– air pit
– air pocket
– air pollution
– air preheater
– air pump
– air purification
– air quality
– air raise
– air refrigerating machine
– air route
– air rudder
– air scale
– air scoop
– air scraper
– air scrubbing
– air separation
– air servicer
– air show
– air shrinkage
– air sickness
– air slaking
– air space
– air stain
– air start
– air supply
– air swinging
– air tightness
– air traffic
– air traffic control
– air traffic controller
– air transport
– air tuyere
– air uptake
– air valve
– air wave
– ambient air
– ascending air
– automatic air regulator
– auxiliary air
– blast-furnace air
– bleed air
– carburetted air
– carriage by air
– carrier air
– combustion air
– compressed air
– compressed air hammer
– compressed air locomotive
– conditioned air
– control air
– cooling air
– cycle air
– damp air
– deliver by air mail
– district air crossing
– ducted air intake
– dusty air
– entrain air
– entrap air
– entrapped air
– evacuate air from
– excess air
– excess air coefficient
– excess air ratio
– exhaust air
– extensive air shower
– foul air
– free air
– fresh air
– gas-heated air heater
– gilled air heater
– go on the air
– ground-based air navigation
– heated air ventilation
– hot air header
– hydraulic air compressor
– induced air
– inducted air
– injection air
– inleakage of air
– ionized air
– large-scale air current
– liquid air
– main air intake
– major air route
– mine air
– multipass air heater
– oil bath air cleaner
– outdoor air
– overfire air
– oxygen-enriched air
– ozonized air
– permanent air
– permanent air crossing
– plate air heater
– plate-fin air preheater
– polluted air
– precompressed air
– preheated air
– primary air
– pure air
– purified air
– rarefied air
– recuperative air cooler
– regenerative air cooler
– return air
– rough air
– saturated air
– sealing air
– self-contained air conditioner
– ship by air freight
– single-pass air heater
– single-stage air heater
– soil air
– split-flow air heater
– spray air cooler
– stagnant air
– standard air
– starting air
– still air
– still air freezing
– suction air duct
– tempering air damper
– tempering air valve
– three-pass air heater
– travel by air
– true air
– turbulent air
– two-stage air heater
– underground air
– unfeather air screw
– used air
– vulcanization in air
– vulcanize in air
compressed air operated fan — вентилятор с пневматическим привод
maritime moderate air — <meteor.> воздух умеренный морской
scale distance of air base — <phot.> базис фотографирования в масштабе аэроснимка, базис фотографирования в масштабе стереомодели
-
18 air
1. воздух; воздушное пространство; воздушная среда; атмосфера/ воздушный; атмосферный3. авиационныйambient airbleed airblowing airbypass aircalm airclean aircompressor bleed airconditioned aircooling airdemisting airdry airengine airengine bay cooling airengine bleed airentrapped airexcess airfan airfree airlow-velocity airmixing airnitrogen-enriched airprimary airrough airsecondary airsmooth airstill airthin airturbulent airundistorted airunstable air -
19 air
воздух; атмосфера; воздушное пространство; воздушная масса; воздушный; авиационный; атмосферный16th stage air — воздух, отбираемый от 16-й ступени (компрессора)
air taken off the 16th stage compressor — воздух, отбираемый от 16-й ступени компрессора
bounce back into the air — подскакивать [подпрыгивать] в воздух (о самолёте)
enter the bleed air — попадать в воздух, отбираемый от двигателя
— BLC air— calm air— dead air— dry air— free air— open air— thin air— used air -
20 air
- air
- nвоздух
air and gas — проф. кислород и ацетилен для газовой сварки
- accidental air
- ambient air
- atmospheric air
- combustion air
- compressed air
- conditioned air
- cooling air
- damp air
- delivery air
- dry air
- dust-laden air
- entrained air
- entrapped air
- excess air
- exhaust air
- exit air
- extract air
- false air
- fresh air
- high air
- humid air
- indoor air
- induced air
- inside air
- leaving air
- low air
- make-up air
- mixed air
- moist air
- outdoor air
- outside air
- primary air
- recirculated air
- relief air
- replacement air
- respiration air
- return air
- rinsing air
- room air
- saturated air
- secondary air
- space air
- stagnant air
- standard air
- supersaturated air
- supply air
- surrounding air
- tempered air
- transfer air
- treated air
- ventilation air
- vitiated air
- wet air
Англо-русский строительный словарь. — М.: Русский Язык. С.Н.Корчемкина, С.К.Кашкина, С.В.Курбатова. 1995.
- 1
- 2
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