-
1 maximum run
Морской термин: предельная дальность хода -
2 maximum run
-
3 run
работа, действие, ход; полет; разбег или пробег; гонка ( двигателей) ; проводка ( управления) ; работать; управлять ( машиной) ; проходить, вести, соединятьduring the production run — в ходе [в процессе] производства
maximum thrust afterburning run — дв. работа на режиме максимальной тяги с включенной форсажной камерой, максимальный форсажный режим
— dry run— fast run— GCA run— ILS run— milk run— net run— run away— run down— run home— run in— run out— run up— sled run— taxi run— test run -
4 maximum throat thickness
максимальная толщина шва
Значение, измеряемое от самой глубокой точки проплавления углового шва или крайней точки корня стыкового шва до наивысшей точки выпуклости шва.
Примечание
Измерение обычно проводят по поперечному сечению шва.
[ ГОСТ Р ИСО 17659-2009] [ISO 17659:2002]EN
maximum throat thickness
Dimension measured from the deepest point of the penetration in fillet welds or the extremity of the root run in butt welds to the highest point of the excess weld metal.
Note
This is usually measured from a cross-section.
[ ГОСТ Р ИСО 17659-2009] [ISO 17659:2002]FR
gorge totale (soudures d'angle)
épaisseur totale (soudures bout а bout)
Soudures d'angle distance mesurée entre le point le plus bas de la pénétration et le point le plus haut de la surépaisseur soudures bout а bout distance mesurée entre le point le plus bas de la passe de fond et le point le plus haut de la surépaisseur.
Note
Cette distance est habituellement mesurée sur une coupe transversale.
[ ГОСТ Р ИСО 17659-2009] [ISO 17659:2002]Тематики
- сварка, резка, пайка
EN
FR
Англо-русский словарь нормативно-технической терминологии > maximum throat thickness
-
5 dimension measured from the deepest point of the penetration in fillet welds or the extremity of the root run in butt welds to the highest point of the excess weld metal
dimension measured from the deepest point of the penetration in fillet welds or the extremity of the root run in butt welds to the highest point of the excess weld metal
Источник: ГОСТ Р ИСО 17659-2009: Сварка. Термины многоязычные для сварных соединений оригинал документа
Англо-русский словарь нормативно-технической терминологии > dimension measured from the deepest point of the penetration in fillet welds or the extremity of the root run in butt welds to the highest point of the excess weld metal
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6 runoff, run-off
сток ; отекание ; утечкаannual runoff, run-off — годовой сток
average annual runoff, run-off — средний годовой сток
average runoff, run-off — средний сток
base runoff, run-off — сток, обусловленный грунтовым питанием
delayed runoff, run-off — подповерхностный сток
direct runoff, run-off — полный сток за время выпадения осадков
flash runoff, run-off — быстрый сток
flood runoff, run-off — паводковый сток
groundwater runoff, run-off — грунтовый (подземный) сток
immediate runoff, run-off — поверхностный сток
maximum runoff, run-off — максимальный сток
mean annual runoff, run-off — среднегодовой сток
monthly mean runoff, run-off — средний месячный сток
normal runoff, run-off — средний многолетний сток
on-site runoff, run-off — местный сток
peak runoff, run-off — максимальный сток
permanent groundwater runoff, run-off — постоянный сток грунтового происхождения
plot runoff, run-off — сток со стоковой площадки
rainfall runoff, run-off — дождевой сток
river runoff, run-off — речной сток
sediment runoff, run-off — твёрдый сток, сток наносов
spring runoff, run-off — весенний сток
storm runoff, run-off — ливневый, сток
stream runoff, run-off — речной сток
subsurface runoff, run-off — подповерхностный сток
summer runoff, run-off — летний сток
surface runoff, run-off — поверхностный сток
total runoff, run-off — суммарный сток
2.расход грунтовых водunderflow runoff, run-off — 1. подрусловый сток
underground runoff, run-off — подземный сток
watershed runoff, run-off — склоновый сток
winter runoff, run-off — зимний сток
-
7 speed
скорость; число оборотов; ускорятьat a speed of Mach 3 — при скорости, соответствующей числу М=3
best (cost) cruising speed — наивыгоднейшая [экономическая] крейсерская скорость полёта
clean (configuration) stall speed — скорость срыва [сваливания] при убранных механизации и шасси
engine-out discontinued approach speed — скорость ухода на второй круг с минимальной высоты при одном неработающем двигателе
flap(-down, -extended) speed — скорость полёта с выпущенными [отклонёнными] закрылками
forward с.g. stalling speed — скорость срыва [сваливания] при передней центровке
hold the speed down — уменьшать [гасить] скорость
minimum single-engine control speed — минимальная эволютивная скорость полёта с одним (работающим) двигателем (из двух)
minimum speedln a stall — минимальная скорость срыва [сваливания]
one-engine-inoperative power-on stalling speed — скорость срыва [сваливания] при одном отказавшем двигателе
rearward с.g. stalling speed — скорость срыва [сваливания] при задней центровке
representative cruising air speed — типовая крейсерская воздушная скорость, скорость полёта на типичном крейсерском режиме
speed over the top — скорость в верхней точке (траектории, маневра)
zero rate of climb speed — скорость полёта при нулевой скороподъёмности [вертикальной скорости]
— speed up -
8 MR
1) Общая лексика: material report for, medial rectus, medial rectus muscle, медиальная прямая мышца, см. medial rectus2) Компьютерная техника: Maintenance Release, Masked Rom, Master Reset, Multiple Record3) Авиация: maintenance record4) Медицина: modified release, МВ (МВ - препараты с модифицированным высвобождением - modified-release tablets)5) Американизм: Male Right6) Спорт: Medium Runner, Middle Relief, Mitsubishi Racing, Mountain Rider7) Военный термин: Machine Room, Maintenance Ratio, Marine reserve, Material Requirements, Max Rounds, Military Road, Milk Run, Miss Rate, Missiles and Rockets, Motorized Rifle, machine records, machine rifle, maintenance requirements, maintenance reserve, maintenance review, management requirements, management reserve, manpower requirements, manufacturer's representative, map reading, map reference, marginal return, maritime reconnaissance, maritime regiment, massage register, material request, maximum readiness, medical record, medium range, memorandum receipt (имущества), memorandum report, military railroad, military readiness, military regulation, military representative, military requirements, military route, minor repair, missile receiver, missile reference, mission radius, mission reliability, mission report, mission-ready, mobilization regulation, modification request, modification requirement, monthly report, monthly review, morning report, movement report, muster report, военный округ (military region)8) Техника: magnetoresistor, mate's receipt, medium frequency, microfiche, milliroentgen, minimal requirement, mobile radar, moderate frequency, monitoring report, multifunction radar, reticular reaction in Malpighian bodies9) Шутливое выражение: Minnesota Rules10) Химия: Mica Reactive, Moderately Resistant11) Строительство: resisting moment12) Религия: Most Righteous13) Железнодорожный термин: Malayan Railway, Midland Railway14) Юридический термин: Master of the Rolls15) Грубое выражение: Model Rules16) Кино: Mature Readers17) Политика: Mauritania18) Сокращение: Marathi, Marker Ranger, Master of Rolls, Military Region, Miniatures Rules, Mission Rehearsal, Molasses Residue or Simulated Mustard (Chemical warfare blister agent), Motor Rifle, Multi-Role, maintainability and reliability, maintenance and repair, marble, maximum range, medium-range, memorandum of receipt, mobilization regulations, municipal reform, mitral regurgitation, недостаточность митрального клапана19) Университет: Multiclass Ranking20) Физика: magnetoresistance21) Физиология: Maximum to right, Medicare Returned, Mental Representation, Mental Retardation, Methicillin Resistant, Minimum Rest, Miscellaneous Remedies22) Электроника: Magnetic Resonance, Magneto Resistance, Microwave Radiometer, Mid Range23) Вычислительная техника: memory reclaimer, memory register, Modified Read (Fax), Magneto - Resistive (HDD), MODEM Ready (MODEM)24) Нефть: marine rig, meter run, морская буровая установка (marine rig), морское буровое основание (marine rig), норма профилактики (maintenance ratio), осмотр с целью технического обслуживания (maintenance review), рейс измерительного зонда в скважину (meter run), management reporting25) Картография: mooring ring26) Банковское дело: добавочный доход, предельный доход (marginal revenue)27) Пищевая промышленность: Mature Ripening28) Фирменный знак: Mecham's Racing, Merchant Republic, Motorola29) Реклама: исследование мотивации30) СМИ: Midnight Reign, Mike And Rich, Mixed Review31) Деловая лексика: Make Replacement, Management Review, Model Released32) Глоссарий компании Сахалин Энерджи: Mixed refrigerant compressor, Modification, Repair & Maintenance Study, material requisition (for purchase), заявка на отпуск материалов (material requisition), микрорадиография, media relations33) Образование: Multimedia Resource34) Складское дело: требование на отпуск материалов (material request)35) Инвестиции: marginal revenue36) Полимеры: mineral rubber, modulus of rupture, moment of resistance37) Программирование: Magic Return, Memory Read38) Автоматика: manipulation robot39) Телефония: Media routing40) Сахалин Р: material requisition, mixed refrigerant41) Химическое оружие: monitor room42) Макаров: reticular reaction (in the Malpighian bodies)43) Расширение файла: Magneto Resistive, Memory Information Register, Modem Ready44) Нефть и газ: manual reset value, marshalling rack, metal roofing45) Маркетология: marketing review46) Электротехника: magnetic relay, master relay48) Снабжение: material review49) Должность: Medical Representative, Mr Right50) Правительство: Mcquarrie Rock, Mystic River51) НАСА: Measurement Of Red, Medium Rate, Mirror Reflector52) Единицы измерений: Magic Rating53) AMEX. Morgans Foods, Inc. -
9 Mr
1) Общая лексика: material report for, medial rectus, medial rectus muscle, медиальная прямая мышца, см. medial rectus2) Компьютерная техника: Maintenance Release, Masked Rom, Master Reset, Multiple Record3) Авиация: maintenance record4) Медицина: modified release, МВ (МВ - препараты с модифицированным высвобождением - modified-release tablets)5) Американизм: Male Right6) Спорт: Medium Runner, Middle Relief, Mitsubishi Racing, Mountain Rider7) Военный термин: Machine Room, Maintenance Ratio, Marine reserve, Material Requirements, Max Rounds, Military Road, Milk Run, Miss Rate, Missiles and Rockets, Motorized Rifle, machine records, machine rifle, maintenance requirements, maintenance reserve, maintenance review, management requirements, management reserve, manpower requirements, manufacturer's representative, map reading, map reference, marginal return, maritime reconnaissance, maritime regiment, massage register, material request, maximum readiness, medical record, medium range, memorandum receipt (имущества), memorandum report, military railroad, military readiness, military regulation, military representative, military requirements, military route, minor repair, missile receiver, missile reference, mission radius, mission reliability, mission report, mission-ready, mobilization regulation, modification request, modification requirement, monthly report, monthly review, morning report, movement report, muster report, военный округ (military region)8) Техника: magnetoresistor, mate's receipt, medium frequency, microfiche, milliroentgen, minimal requirement, mobile radar, moderate frequency, monitoring report, multifunction radar, reticular reaction in Malpighian bodies9) Шутливое выражение: Minnesota Rules10) Химия: Mica Reactive, Moderately Resistant11) Строительство: resisting moment12) Религия: Most Righteous13) Железнодорожный термин: Malayan Railway, Midland Railway14) Юридический термин: Master of the Rolls15) Грубое выражение: Model Rules16) Кино: Mature Readers17) Политика: Mauritania18) Сокращение: Marathi, Marker Ranger, Master of Rolls, Military Region, Miniatures Rules, Mission Rehearsal, Molasses Residue or Simulated Mustard (Chemical warfare blister agent), Motor Rifle, Multi-Role, maintainability and reliability, maintenance and repair, marble, maximum range, medium-range, memorandum of receipt, mobilization regulations, municipal reform, mitral regurgitation, недостаточность митрального клапана19) Университет: Multiclass Ranking20) Физика: magnetoresistance21) Физиология: Maximum to right, Medicare Returned, Mental Representation, Mental Retardation, Methicillin Resistant, Minimum Rest, Miscellaneous Remedies22) Электроника: Magnetic Resonance, Magneto Resistance, Microwave Radiometer, Mid Range23) Вычислительная техника: memory reclaimer, memory register, Modified Read (Fax), Magneto - Resistive (HDD), MODEM Ready (MODEM)24) Нефть: marine rig, meter run, морская буровая установка (marine rig), морское буровое основание (marine rig), норма профилактики (maintenance ratio), осмотр с целью технического обслуживания (maintenance review), рейс измерительного зонда в скважину (meter run), management reporting25) Картография: mooring ring26) Банковское дело: добавочный доход, предельный доход (marginal revenue)27) Пищевая промышленность: Mature Ripening28) Фирменный знак: Mecham's Racing, Merchant Republic, Motorola29) Реклама: исследование мотивации30) СМИ: Midnight Reign, Mike And Rich, Mixed Review31) Деловая лексика: Make Replacement, Management Review, Model Released32) Глоссарий компании Сахалин Энерджи: Mixed refrigerant compressor, Modification, Repair & Maintenance Study, material requisition (for purchase), заявка на отпуск материалов (material requisition), микрорадиография, media relations33) Образование: Multimedia Resource34) Складское дело: требование на отпуск материалов (material request)35) Инвестиции: marginal revenue36) Полимеры: mineral rubber, modulus of rupture, moment of resistance37) Программирование: Magic Return, Memory Read38) Автоматика: manipulation robot39) Телефония: Media routing40) Сахалин Р: material requisition, mixed refrigerant41) Химическое оружие: monitor room42) Макаров: reticular reaction (in the Malpighian bodies)43) Расширение файла: Magneto Resistive, Memory Information Register, Modem Ready44) Нефть и газ: manual reset value, marshalling rack, metal roofing45) Маркетология: marketing review46) Электротехника: magnetic relay, master relay48) Снабжение: material review49) Должность: Medical Representative, Mr Right50) Правительство: Mcquarrie Rock, Mystic River51) НАСА: Measurement Of Red, Medium Rate, Mirror Reflector52) Единицы измерений: Magic Rating53) AMEX. Morgans Foods, Inc. -
10 mR
1) Общая лексика: material report for, medial rectus, medial rectus muscle, медиальная прямая мышца, см. medial rectus2) Компьютерная техника: Maintenance Release, Masked Rom, Master Reset, Multiple Record3) Авиация: maintenance record4) Медицина: modified release, МВ (МВ - препараты с модифицированным высвобождением - modified-release tablets)5) Американизм: Male Right6) Спорт: Medium Runner, Middle Relief, Mitsubishi Racing, Mountain Rider7) Военный термин: Machine Room, Maintenance Ratio, Marine reserve, Material Requirements, Max Rounds, Military Road, Milk Run, Miss Rate, Missiles and Rockets, Motorized Rifle, machine records, machine rifle, maintenance requirements, maintenance reserve, maintenance review, management requirements, management reserve, manpower requirements, manufacturer's representative, map reading, map reference, marginal return, maritime reconnaissance, maritime regiment, massage register, material request, maximum readiness, medical record, medium range, memorandum receipt (имущества), memorandum report, military railroad, military readiness, military regulation, military representative, military requirements, military route, minor repair, missile receiver, missile reference, mission radius, mission reliability, mission report, mission-ready, mobilization regulation, modification request, modification requirement, monthly report, monthly review, morning report, movement report, muster report, военный округ (military region)8) Техника: magnetoresistor, mate's receipt, medium frequency, microfiche, milliroentgen, minimal requirement, mobile radar, moderate frequency, monitoring report, multifunction radar, reticular reaction in Malpighian bodies9) Шутливое выражение: Minnesota Rules10) Химия: Mica Reactive, Moderately Resistant11) Строительство: resisting moment12) Религия: Most Righteous13) Железнодорожный термин: Malayan Railway, Midland Railway14) Юридический термин: Master of the Rolls15) Грубое выражение: Model Rules16) Кино: Mature Readers17) Политика: Mauritania18) Сокращение: Marathi, Marker Ranger, Master of Rolls, Military Region, Miniatures Rules, Mission Rehearsal, Molasses Residue or Simulated Mustard (Chemical warfare blister agent), Motor Rifle, Multi-Role, maintainability and reliability, maintenance and repair, marble, maximum range, medium-range, memorandum of receipt, mobilization regulations, municipal reform, mitral regurgitation, недостаточность митрального клапана19) Университет: Multiclass Ranking20) Физика: magnetoresistance21) Физиология: Maximum to right, Medicare Returned, Mental Representation, Mental Retardation, Methicillin Resistant, Minimum Rest, Miscellaneous Remedies22) Электроника: Magnetic Resonance, Magneto Resistance, Microwave Radiometer, Mid Range23) Вычислительная техника: memory reclaimer, memory register, Modified Read (Fax), Magneto - Resistive (HDD), MODEM Ready (MODEM)24) Нефть: marine rig, meter run, морская буровая установка (marine rig), морское буровое основание (marine rig), норма профилактики (maintenance ratio), осмотр с целью технического обслуживания (maintenance review), рейс измерительного зонда в скважину (meter run), management reporting25) Картография: mooring ring26) Банковское дело: добавочный доход, предельный доход (marginal revenue)27) Пищевая промышленность: Mature Ripening28) Фирменный знак: Mecham's Racing, Merchant Republic, Motorola29) Реклама: исследование мотивации30) СМИ: Midnight Reign, Mike And Rich, Mixed Review31) Деловая лексика: Make Replacement, Management Review, Model Released32) Глоссарий компании Сахалин Энерджи: Mixed refrigerant compressor, Modification, Repair & Maintenance Study, material requisition (for purchase), заявка на отпуск материалов (material requisition), микрорадиография, media relations33) Образование: Multimedia Resource34) Складское дело: требование на отпуск материалов (material request)35) Инвестиции: marginal revenue36) Полимеры: mineral rubber, modulus of rupture, moment of resistance37) Программирование: Magic Return, Memory Read38) Автоматика: manipulation robot39) Телефония: Media routing40) Сахалин Р: material requisition, mixed refrigerant41) Химическое оружие: monitor room42) Макаров: reticular reaction (in the Malpighian bodies)43) Расширение файла: Magneto Resistive, Memory Information Register, Modem Ready44) Нефть и газ: manual reset value, marshalling rack, metal roofing45) Маркетология: marketing review46) Электротехника: magnetic relay, master relay48) Снабжение: material review49) Должность: Medical Representative, Mr Right50) Правительство: Mcquarrie Rock, Mystic River51) НАСА: Measurement Of Red, Medium Rate, Mirror Reflector52) Единицы измерений: Magic Rating53) AMEX. Morgans Foods, Inc. -
11 mr
1) Общая лексика: material report for, medial rectus, medial rectus muscle, медиальная прямая мышца, см. medial rectus2) Компьютерная техника: Maintenance Release, Masked Rom, Master Reset, Multiple Record3) Авиация: maintenance record4) Медицина: modified release, МВ (МВ - препараты с модифицированным высвобождением - modified-release tablets)5) Американизм: Male Right6) Спорт: Medium Runner, Middle Relief, Mitsubishi Racing, Mountain Rider7) Военный термин: Machine Room, Maintenance Ratio, Marine reserve, Material Requirements, Max Rounds, Military Road, Milk Run, Miss Rate, Missiles and Rockets, Motorized Rifle, machine records, machine rifle, maintenance requirements, maintenance reserve, maintenance review, management requirements, management reserve, manpower requirements, manufacturer's representative, map reading, map reference, marginal return, maritime reconnaissance, maritime regiment, massage register, material request, maximum readiness, medical record, medium range, memorandum receipt (имущества), memorandum report, military railroad, military readiness, military regulation, military representative, military requirements, military route, minor repair, missile receiver, missile reference, mission radius, mission reliability, mission report, mission-ready, mobilization regulation, modification request, modification requirement, monthly report, monthly review, morning report, movement report, muster report, военный округ (military region)8) Техника: magnetoresistor, mate's receipt, medium frequency, microfiche, milliroentgen, minimal requirement, mobile radar, moderate frequency, monitoring report, multifunction radar, reticular reaction in Malpighian bodies9) Шутливое выражение: Minnesota Rules10) Химия: Mica Reactive, Moderately Resistant11) Строительство: resisting moment12) Религия: Most Righteous13) Железнодорожный термин: Malayan Railway, Midland Railway14) Юридический термин: Master of the Rolls15) Грубое выражение: Model Rules16) Кино: Mature Readers17) Политика: Mauritania18) Сокращение: Marathi, Marker Ranger, Master of Rolls, Military Region, Miniatures Rules, Mission Rehearsal, Molasses Residue or Simulated Mustard (Chemical warfare blister agent), Motor Rifle, Multi-Role, maintainability and reliability, maintenance and repair, marble, maximum range, medium-range, memorandum of receipt, mobilization regulations, municipal reform, mitral regurgitation, недостаточность митрального клапана19) Университет: Multiclass Ranking20) Физика: magnetoresistance21) Физиология: Maximum to right, Medicare Returned, Mental Representation, Mental Retardation, Methicillin Resistant, Minimum Rest, Miscellaneous Remedies22) Электроника: Magnetic Resonance, Magneto Resistance, Microwave Radiometer, Mid Range23) Вычислительная техника: memory reclaimer, memory register, Modified Read (Fax), Magneto - Resistive (HDD), MODEM Ready (MODEM)24) Нефть: marine rig, meter run, морская буровая установка (marine rig), морское буровое основание (marine rig), норма профилактики (maintenance ratio), осмотр с целью технического обслуживания (maintenance review), рейс измерительного зонда в скважину (meter run), management reporting25) Картография: mooring ring26) Банковское дело: добавочный доход, предельный доход (marginal revenue)27) Пищевая промышленность: Mature Ripening28) Фирменный знак: Mecham's Racing, Merchant Republic, Motorola29) Реклама: исследование мотивации30) СМИ: Midnight Reign, Mike And Rich, Mixed Review31) Деловая лексика: Make Replacement, Management Review, Model Released32) Глоссарий компании Сахалин Энерджи: Mixed refrigerant compressor, Modification, Repair & Maintenance Study, material requisition (for purchase), заявка на отпуск материалов (material requisition), микрорадиография, media relations33) Образование: Multimedia Resource34) Складское дело: требование на отпуск материалов (material request)35) Инвестиции: marginal revenue36) Полимеры: mineral rubber, modulus of rupture, moment of resistance37) Программирование: Magic Return, Memory Read38) Автоматика: manipulation robot39) Телефония: Media routing40) Сахалин Р: material requisition, mixed refrigerant41) Химическое оружие: monitor room42) Макаров: reticular reaction (in the Malpighian bodies)43) Расширение файла: Magneto Resistive, Memory Information Register, Modem Ready44) Нефть и газ: manual reset value, marshalling rack, metal roofing45) Маркетология: marketing review46) Электротехника: magnetic relay, master relay48) Снабжение: material review49) Должность: Medical Representative, Mr Right50) Правительство: Mcquarrie Rock, Mystic River51) НАСА: Measurement Of Red, Medium Rate, Mirror Reflector52) Единицы измерений: Magic Rating53) AMEX. Morgans Foods, Inc. -
12 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
-
13 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
-
14 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
-
15 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
-
16 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
-
17 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)
-
18 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
-
19 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
-
20 takeoff
abandoned takeoffпрекращенный взлетabandon the takeoffпрекращать взлетaborted takeoffпрерванный взлетabort the takeoffпрерывать взлетaerial taxiing to takeoffруление по воздуху к месту взлетаafter takeoff procedureсхема набора высоты после взлетаall-engine takeoffвзлет при всех работающих двигателяхallowable takeoff weightполная взлетная массаavailable takeoffрасполагаемая длина разбегаcertificated takeoff weightсертифицированная взлетная массаclearance for takeoffразрешение на взлетcleared for takeoffвзлет разрешенclear for takeoffдавать разрешение на взлетclimbing takeoffвзлет с крутым набором высотыcome to takeoff powerвыходить на взлетный режимcontinued takeoffпродолженный взлетcontinued takeoff distanceдистанция продолженного взлетаcontinue the takeoffпродолжать взлетconventional takeoff and landing aircraftвоздушное судно обычной схемы взлета и посадкиcorrected takeoff distanceуточненная взлетная дистанцияcrosswind takeoffвзлет с боковым ветромdesign takeoff massрасчетная взлетная массаdesign takeoff weightрасчетная взлетная массаdiscontinued takeoffпрекращенный взлетdiscontinue the takeoffпрекращать взлетdownwind takeoffвзлет по ветруdry takeoffвзлет без впрыска водыduring takeoffв процессе взлетаengine takeoff speedчисло оборотов двигателя на взлетном режимеflaps takeoff settingустановка закрылков на взлетный уголflap takeoff positionвзлетное положение закрылковflat takeoff pathпологая траектория взлетаforward takeoffвзлет по самолетномуfull-throttle takeoffвзлет на максимальном газеgross takeoff distanceполная взлетная дистанцияground effect takeoffвзлет с использованием влияния землиinstrument takeoffвзлет по приборамjet-assisted takeoffвзлет с реактивным ускорителемlow visibility takeoffвзлет в условиях плохой видимостиmaximum certificate takeoff massмаксимальная сертифицированная взлетная массаmaximum takeoff weightмаксимально допустимая взлетная массаminimum takeoff safety speedминимальная безопасная скорость взлетаnoise abatement takeoffвзлет на режимах работы двигателей, составляющих наименьший шумnoise certification takeoff flight pathтраектория взлета, сертифицированная по шумуnormal takeoff procedureтиповая схема взлетаno-run takeoffвзлет по вертолетномуon takeoffна взлетеpractice takeoffтренировочный взлетreadiness for takeoffготовность к взлетуreduced takeoff and landing aircraftвоздушное судно укороченного взлета и посадкиrejected takeoffпрерванный взлетreport for takeoffсводка для взлетаrocket-assisted takeoffвзлет с ракетным ускорителемrolling takeoff procedureсхема взлета без остановкиrunning takeoffвзлет по самолетномуsafe takeoff distanceбезопасная взлетная дистанцияsafety takeoffбезопасный взлетset takeoff powerустанавливать взлетный режимshort takeoff and landing aircraftвоздушное судно короткого взлета и посадкиspeed at takeoff climbскорость на начальном участке набора высоты при взлетеspeed in takeoff configurationскорость при взлетной(конфигурации воздушного судна) spot takeoffвзлет с ограниченной площадкиstart of takeoffначало разбега при взлетеtakeoff abilityвзлетная характеристикаtakeoff accelerationускорение при взлетеtakeoff acceleration distanceдистанция разгона при взлетеtakeoff accidentпроисшествие при взлетеtakeoff aerodromeаэродром вылетаtakeoff angleвзлетный уголtakeoff areaзона взлетаtakeoff check listперечень обязательных проверок перед взлетомtakeoff clearanceразрешение на взлетtakeoff clearance confirmationподтверждение разрешения на взлетtakeoff climbнабор высоты при взлетеtakeoff conditionsусловия взлетаtakeoff configurationконфигурация при взлетеtakeoff crewгруппа управления взлетамиtakeoff distanceвзлетная дистанцияtakeoff distance availableрасполагаемая взлетная дистанцияtakeoff downwindвзлетать по ветруtakeoff drillопробование перед взлетомtakeoff fixустановленная точка отрыва при взлетеtakeoff flight pathтраектория взлетаtakeoff flight path areaзона набора высоты при взлетеtakeoff forecastпрогноз на момент взлетаtakeoff fuelколичество топлива, требуемое для взлетаtakeoff gross weightобщая взлетная массаtakeoff headingвзлетный курсtakeoff into the windвзлетать против ветраtakeoff massвзлетная массаtakeoff mass correctionпоправка на взлетную массуtakeoff minimaминимум для взлетаtakeoff monitoring systemсистема контроля взлетаtakeoff noiseшум при взлетеtakeoff noise angleугол распространения шума при взлетеtakeoff noise testиспытание на шум при взлетеtakeoff operationвыполнение взлетаtakeoff outputвзлетная мощностьtakeoff patternсхема взлетаtakeoff performanceвзлетная характеристикаtakeoff phaseэтап взлетаtakeoff positionположение на линии исполнительного стартаtakeoff powerвзлетная мощностьtakeoff procedureсхема взлетаtakeoff profile changeизменение траектории полетаtakeoff rangeдиапазон взлетных режимовtakeoff requestзапрос на взлетtakeoff rollразбег при взлетеtakeoff runразбег при взлетеtakeoff run availableрасполагаемая дистанция разбега для взлетаtakeoff runwayВПП, открытая только для взлетовtakeoff safety speedбезопасная скорость взлетаtakeoff segmentучасток взлетаtakeoff sequenceочередность взлетаtakeoff speedскорость взлетаtakeoff stripвзлетная полосаtakeoff surface levelвысота плоскости ограничения препятствий в зоне взлетаtakeoff taxiingвыруливание на исполнительный старт для взлетаtakeoff techniqueспособ взлетаtakeoff thrustтяга на взлетном режимеtakeoff timeвремя взлетаtakeoff trackлиния пути при взлетеtakeoff weightвзлетная массаtakeoff with crosswindвзлетать с боковым ветромtaxiing to takeoff positionвыруливание на исполнительный старт для взлетаupwind takeoffвзлет против ветраvertical takeoffвертикальный взлетvertical takeoff and landing aircraftвоздушное судно вертикального взлета и посадкиwet takeoffвзлет с впрыском воды
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