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1 потребление электроэнергии
потребление электроэнергии
Означает национальное производство электроэнергии, включая автопроизводство, плюс импорт, минус экспорт (валовое национальное потребление электроэнергии) (Директива 2001/77/ЕС).
[Англо-русский глосcарий энергетических терминов ERRA]EN
consumption of electricity
Shall mean national electricity production, including autoproduction, plus imports, minus exports (gross national electricity consumption) (Directive 2001/77/EC).
[Англо-русский глосcарий энергетических терминов ERRA]
electricity consumption
Amount of electricity consumed by an apparatus. (Source: PHC)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Параллельные тексты EN-RU
Specific applications can make high demands of a data centre solution.
[Legrand]Специфика центров обработки данных заключается в высоком потреблении электроэнергии.
[Перевод Интент]
Недопустимые, нерекомендуемые
Тематики
EN
- consumption of electricity
- demand
- electric power consumption
- electric power use
- electrical energy consumption
- electricity consumption
- energy usage
- power use
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FR
Русско-немецкий словарь нормативно-технической терминологии > потребление электроэнергии
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2 длительный допустимый ток
- Strombelastbarkeit, f
- Dauerstrombelastbarkeit, f
(длительный) допустимый ток
Максимальное значение электрического тока, который может протекать длительно по проводнику, устройству или аппарату при определенных условиях без превышения определенного значения их температуры в установившемся режиме
[ ГОСТ Р МЭК 60050-826-2009]
Этот ток обозначают IZ
[ ГОСТ Р 50571. 1-2009 ( МЭК 60364-1: 2005)]EN
(continuous) current-carrying capacity
ampacity (US)
maximum value of electric current which can be carried continuously by a conductor, a device or an apparatus, under specified conditions without its steady-state temperature exceeding a specified value
[IEV number 826-11-13]
ampacity
The current in amperes that a conductor can carry continuously under the conditions of use without exceeding its temperature rating.
[National Electrical Cod]FR
courant (permanent) admissible, m
valeur maximale du courant électrique qui peut parcourir en permanence, un conducteur, un dispositif ou un appareil, sans que sa température de régime permanent, dans des conditions données, soit supérieure à la valeur spécifiée
[IEV number 826-11-13]Ampacity, the term is defined as the maximum amount of current a cable can carry before sustaining immediate or progressive deterioration. Also described as current rating or current-carrying capacity, is the RMS electric current which a device can continuously carry while remaining within its temperature rating. The ampacity of a cable depends on:
- its insulation temperature rating;
- conductor electrical properties for current;
- frequency, in the case of alternating currents;
- ability to dissipate heat, which depends on cable geometry and its surroundings;
- ambient temperature.
Electric wires have some resistance, and electric current flowing through them causes voltage drop and power dissipation, which heats the cable. Copper or aluminum can conduct a large amount of current before melting, but long before the conductors melt, their insulation would be damaged by the heat.
The ampacity for a power cable is thus based on physical and electrical properties of the material & construction of the conductor and of its insulation, ambient temperature, and environmental conditions adjacent to the cable. Having a large overall surface area may dissipate heat well if the environment can absorb the heat.
In a long run of cable, different conditions govern, and installation regulations normally specify that the most severe condition along the run governs the cable's rating. Cables run in wet or oily locations may carry a lower temperature rating than in a dry installation. Derating is necessary for multiple circuits in close proximity. When multiple cables are near, each contributes heat to the others and diminishes the amount of cooling air that can flow past the individual cables. The overall ampacity of the insulated conductors in a bundle of more than 3 must be derated, whether in a raceway or cable. Usually the de-rating factor is tabulated in a nation's wiring regulations.
Depending on the type of insulating material, common maximum allowable temperatures at the surface of the conductor are 60, 75 and 90 degrees Celsius, often with an ambient air temperature of 30°C. In the U.S., 105°C is allowed with ambient of 40°C, for larger power cables, especially those operating at more than 2 kV. Likewise, specific insulations are rated 150, 200 or 250°C.
The allowed current in cables generally needs to be decreased (derated) when the cable is covered with fireproofing material.
For example, the United States National Electric Code, Table 310-16, specifies that up to three 8 AWG copper wires having a common insulating material (THWN) in a raceway, cable, or direct burial has an ampacity of 50 A when the ambient air is 30°C, the conductor surface temperature allowed to be 75°C. A single insulated conductor in air has 70 A rating.
Ampacity rating is normally for continuous current, and short periods of overcurrent occur without harm in most cabling systems. The acceptable magnitude and duration of overcurrent is a more complex topic than ampacity.
When designing an electrical system, one will normally need to know the current rating for the following:- Wires
- Printed Circuit Board traces, where included
- Fuses
- Circuit breakers
- All or nearly all components used
Some devices are limited by power rating, and when this power rating occurs below their current limit, it is not necessary to know the current limit to design a system. A common example of this is lightbulb holders.
[http://en.wikipedia.org/wiki/Ampacity]
Тематики
- электротехника, основные понятия
Синонимы
EN
DE
- Dauerstrombelastbarkeit, f
- Strombelastbarkeit, f
FR
- courant admissible, m
- courant permanent admissible, m
Русско-немецкий словарь нормативно-технической терминологии > длительный допустимый ток
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3 энергия ГЭС
энергия ГЭС
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
hydroelectric energy
The free renewable source of energy provided by falling water that drives the turbines. Hydropower is the most important of the regenerable energy sources because of its highest efficiency at the energy conversion. There are two types of hydroelectric power plants: a) run-of-river power plants for the use of affluent water; b) storage power plants (power stations with reservoir) where the influx can be regulated with the help of a reservoir. Mostly greater differences in altitudes are being used, like mountain creeks. Power stations with reservoirs are generally marked by barrages with earth fill dam or concrete dams. Though hydropower generally can be called environmentally acceptable, there exist also some problems: a) change of groundwater level and fill up of the river bed with rubble. b) Risk of dam breaks. c) Great demand for land space for the reservoir. d) Diminution, but partly also increase of value of recreation areas. As the hydropowers of the world are limited, the world energy demand however is rising, finally the share of hydropower will decrease. (Source: PORT / PHC / PZ)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Русско-немецкий словарь нормативно-технической терминологии > энергия ГЭС
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4 энергия прилива
энергия прилива
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
tidal power
Mechanical power, which may be converted to electrical power, generated by the rise and fall of ocean tides. The possibilities of utilizing tidal power have been studied for many generations, but the only feasible schemes devised so far are based on the use of one or more tidal basins, separated from the sea by dams (known as barrages), and of hydraulic turbines through which water passes on its way between the basins and the sea. (Source: ALL)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Русско-немецкий словарь нормативно-технической терминологии > энергия прилива
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5 силовой конденсатор
силовой конденсатор
-EN
power capacitor
a capacitor intended for use in a power network
[IEV ref 436-02-01]FR
condensateur de puissance
condensateur prévu pour être utilisé dans un réseau de puissance
[IEV ref 436-02-01]Настоящий стандарт распространяется на:
...
- силовые конденсаторы, предназначенные для обеспечения высокочастотной связи по линиям электропередач, для делителей напряжения и отбора мощности, для продольной компенсации, для повышения коэффициента мощности, импульсные, фильтровые;
- силовые конденсаторы и конденсаторные батареи для электротермических установок.
[ ГОСТ 12.2.007.5-75. Конденсаторы силовые. Установки конденсаторные Требования безопасности]Тематики
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Русско-немецкий словарь нормативно-технической терминологии > силовой конденсатор
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6 тепловая станция
тепловая станция
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
thermal power plant
A power-generating plant which uses heat to produce energy. Such plants may burn fossil fuels or use nuclear energy to produce the necessary thermal energy. (Source: LANDY)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Русско-немецкий словарь нормативно-технической терминологии > тепловая станция
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7 международная политика
международная политика
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
international politics
The use of methods, strategy, intrigue, decision making and power by governments and their representatives to achieve goals in policy making or governmental affairs in a worldwide or international arena. (Source: RHW)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Русско-немецкий словарь нормативно-технической терминологии > международная политика
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8 электротехническое оборудование
электротехническое оборудование
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
electrotechnical equipment
All the equipment connected with the technological use of electric power. (Source: CEDa)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Русско-немецкий словарь нормативно-технической терминологии > электротехническое оборудование
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9 эффективность использования энергии
эффективность использования энергии
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
energy efficiency
Refers to actions to save fuels by better building design, the modification of production processes, better selection of road vehicles and transport policies, the adoption of district heating schemes in conjunction with electrical power generation, and the use of domestic insulation and double glazing in homes. (Source: WRIGHT)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Русско-немецкий словарь нормативно-технической терминологии > эффективность использования энергии
См. также в других словарях:
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