Перевод: с русского на немецкий

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common+example

  • 1 длительный допустимый ток

    1. Strombelastbarkeit, f
    2. 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:

    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

  • 2 полное сопротивление относительно земли

    1. Impedanz gegen Erde
    2. Impedanz gegen Bezugserde

     

    полное сопротивление относительно земли
    Полное сопротивление (импеданс) между точкой системы или установки, или оборудования и относительной землей на данной частоте.
    [ ГОСТ Р МЭК 60050-195-2005]


    полное сопротивление относительно земли
    Полное сопротивление между определенной точкой системы или установки, или оборудования и эталонной землей на данной частоте.
    [ ГОСТ Р МЭК 60050-826-2009]

    EN

    impedance to earth
    impedance at a given frequency between a specified point in a system or in an installation or in equipment and reference earth
    [IEV number 195-01-17]


    impedance to earth
    impedance to ground (US)
    impedance at a given frequency between a specified point in a system or in an installation or in equipment and reference earth
    NOTE 1 – Reference earth is defined in IEC 60050-195. In practice, a reference point can be substituted to earth, for example the chassis.
    NOTE 2 – The common mode rejection ratio of an instrument is dependent on the impedances between the input terminals and earth. Each of these impedances is called a common mode impedance.
    Source: 195-01-17
    [IEV number 312-06-20]

    FR

    impédance de mise à la terre
    impédance à une fréquence donnée entre un point spécifié d'un réseau, d'une installation ou d'un matériel et la terre de référence
    [IEV number 195-01-17]


    impédance de mise à la terre
    impédance à une fréquence donnée entre un point spécifié d'un réseau, d'une installation ou d'un matériel et la terre de référence
    NOTE 1 – La terre de référence est définie dans la CEI 60050-195. En pratique, on peut lui substituer un point de référence, par exemple la masse.
    NOTE 2 – Le facteur de réjection de mode commun d'un appareil dépend de l'impédance entre chacune des bornes d'entrée et la terre. Chacune de ces impédances est appelée impédance de mode commun.
    Source: 195-01-17
    [IEV number 312-06-20]

    Тематики

    EN

    DE

    FR

    Русско-немецкий словарь нормативно-технической терминологии > полное сопротивление относительно земли

  • 3 Совет ЕС

    1. Rat der Europäischen Union

     

    Совет ЕС

    [ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]

    EN

    EU Council
    The Council of the European Union is an institution which exercises legislative and decision-making powers. At the same time, it is the forum in which the representatives of the Governments of the 15 Member States can assert their interests and try to reach compromises. The Council ensures general coordination of the activities of the European Community, the main objective of which is the establishment of an internal market, i.e. an area without internal frontiers guaranteeing four freedoms of movement - for goods, persons, services and capital - to which should soon be added a single currency. In addition, the Council is responsible for intergovernmental cooperation, in common foreign and security policy (CFSP) and in the areas of justice and home affairs (JHA), including for example matters of immigration and asylum, combating terrorism and drugs and judicial cooperation. (Source: UEEU)
    [http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]

    Тематики

    EN

    DE

    FR

    Русско-немецкий словарь нормативно-технической терминологии > Совет ЕС

  • 4 система шин

    1. Sammelschiene

     

    система шин
    Комплект элементов, связывающих между собой все присоединения электрического распределительного устройства.
    [ ГОСТ 24291-90]

    EN

    busbars (commonly called busbar)
    in a substation, the busbar assembly necessary to make a common connection for several circuits
    Example: three busbars for a three-phase system.
    [IEV number 605-02-02]

    FR

    jeu de barres (omnibus)
    dans un poste, ensemble des barres omnibus nécessaires pour connecter des circuits
    Exemple: trois barres pour un réseau triphasé.
    [IEV number 605-02-02]

    КЛАССИФИКАЦИЯ

    Различают следующие системы:

    Тематики

    • электротехника, основные понятия

    Синонимы

    EN

    DE

    FR

    Русско-немецкий словарь нормативно-технической терминологии > система шин

  • 5 шина (в электротехнике)

    1. Sammelschiene

     

    шина
    Проводник с низким сопротивлением, к которому можно подсоединить несколько отдельных электрических цепей.
    Примечание — Термин «шина» не включает в себя геометрическую форму, габариты или размеры проводника.
    [ ГОСТ Р 51321. 1-2000 ( МЭК 60439-1-92)]
    [ ГОСТ Р МЭК 61439.1-2013]

    шина
    Конструктивный элемент низковольтного комплектного устройства (НКУ).
    Такой конструктивный элемент предназначен для того, чтобы к нему можно было легко присоединить отдельные электрические цепи (другие шины, отдельные проводники). Такие шины могут иметь различную конструкцию, геометрическую форму и размеры.
    [Интент]

    шинопровод шина
    Медная, алюминиевая, реже стальная полоса, служащая для присоединения кабелей электрогенераторов, трансформаторов и т.д. к проводам питающей сети
    [Терминологический словарь по строительству на 12 языках (ВНИИИС Госстроя СССР)]

    общая шина
    -
    [IEV number 151-12-30]

    шина
    -
    [Я.Н.Лугинский, М.С.Фези-Жилинская, Ю.С.Кабиров. Англо-русский словарь по электротехнике и электроэнергетике, Москва]

    EN

    busbar
    low-impedance conductor to which several electric circuits can be connected at separate points
    NOTE – In many cases, the busbar consists of a bar.
    [IEV number 151-12-30]

    busbar
    An electrical conductor that makes a common connection between several circuits. Sometimes, electrical wire cannot accommodate high-current applications, and electricity must be conducted using a more substantial busbar — a thick bar of solid metal (usually copper or aluminum). Busbars are uninsulated, but are physically supported by insulators. They are used in electrical substations to connect incoming and outgoing transmission lines and transformers; in a power plant to connect the generator and the main transformers; in industry, to feed large amounts of electricity to equipment used in the aluminum smelting process, for example, or to distribute electricity in large buildings
    [ABB. Glossary of technical terms. 2010]

    FR

    barre omnibus, f
    conducteur de faible impédance auquel peuvent être reliés plusieurs circuits électriques en des points séparés
    NOTE – Dans de nombreux cas, une barre omnibus est constituée d’une barre.
    [IEV number 151-12-30]

     

    0079_1

    1. Сборные шины
    2. Распределительные шины

      2. Проводник прямоугольного сечения из меди, предназначенный для электротехнических целей
    (см. ГОСТ 434-78).

    Поставляется в бухтах, а также в полосах длиной не менее 2,5 м; По существу, это просто проволока прямоугольного сечения. В указанном ГОСТе и в технической документации, в которой она применяется, обязательно указываются размеры этой проволоки. Например, "Шина ШММ 8,00х40,00 ГОСТ 434-78" 0308
     

     

    шина
    Пруток прямоугольного сечения, применяемый в электротехнике в качестве проводника тока, изготовляемый прессованием или волочением.
    [ ГОСТ 25501-82]

    Тематики

    Действия

    • расположение шин «на ребро» [ПУЭ]
    • расположение шин «плашмя» [ПУЭ]

    Сопутствующие термины

    EN

    DE

    FR

    Русско-немецкий словарь нормативно-технической терминологии > шина (в электротехнике)

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