-
1 tension assignée d'un parafoudre
номинальное напряжение
Uн
Действующее значение напряжения промышленной частоты, которое ограничитель может выдерживать в течение 10 с в процессе рабочих испытаний. Номинальное напряжение должно быть не менее 1,25 наибольшего длительно допустимого рабочего напряжения.
[ ГОСТ Р 52725-2007]EN
rated voltage of an arrester
Ur
maximum permissible r.m.s. value of power-frequency voltage between its terminals at which it is designed to operate correctly under temporary overvoltage conditions as established in the operating duty tests
NOTE 1 The rated voltage is used as a reference parameter for the specification of operating characteristics.
NOTE 2 The rated voltage as defined in this standard is the 10 s power-frequency voltage used in the operating duty test after high-current or long-duration impulses. Tests used to establish the voltage rating in IEC 60099-1, as well as some national standards, involve the application of repetitive impulses at nominal current with power-frequency voltage applied. Attention is drawn to the fact that these two methods used to established rating do not necessarily produce equivalent values (a resolution to this discrepancy is under consideration).
[IEC 60099-4, ed. 2.0 (2004-05)]FR
tension assignée d'un parafoudre
Ur
valeur maximale de la tension efficace à fréquence industrielle admissible entre ses bornes pour laquelle le parafoudre est prévu pour fonctionner correctement dans des conditions de surtension temporaires comme il est défini dans les essais de fonctionnement
NOTE 1 La tension assignée est utilisée comme paramètre de référence pour la spécification des caractéristiques de fonctionnement.
NOTE 2 La tension assignée comme définie dans la présente norme est la tension à fréquence industrielle de 10 s, utilisée pour vérifier la stabilité après application des chocs de courant de grande amplitude ou de longue durée lors de l'essai de fonctionnement. Les essais utilisés pour définir la tension assignée dans la CEI 60099-1, ainsi que dans certaines normes nationales, impliquent l'application de chocs répétés au courant nominal pendant que la tension à fréquence industrielle est appliquée. On attire l'attention sur le fait que ces deux méthodes utilisées pour définir les valeurs assignées ne produisent pas nécessairement des valeurs équivalentes (une résolution de cette différence est à l'étude).
[IEC 60099-4, ed. 2.0 (2004-05)]Тематики
- высоковольтный аппарат, оборудование...
EN
FR
Франко-русский словарь нормативно-технической терминологии > tension assignée d'un parafoudre
См. также в других словарях:
well-established — well es tablished adj something that is well established has existed for a long time and is respected or trusted by people ▪ a well established law firm ▪ a well established scientific theory … Dictionary of contemporary English
well-established — well es tablished adjective having existed for a long time, and having been successful or accepted for a long time: a well established company/hotel a well established practice/principle/tradition: It was a well established tradition until the… … Usage of the words and phrases in modern English
well established — ˌwell eˈstablished [well established] adjective having a respected position, because of being successful, etc. over a long period • a well established firm • He is now well established in his career … Useful english dictionary
well established — index fixed (settled) Burton s Legal Thesaurus. William C. Burton. 2006 … Law dictionary
well-established — index ingrained, solid (sound) Burton s Legal Thesaurus. William C. Burton. 2006 … Law dictionary
well-established — also well established ADJ GRADED If you say that something is well established, you mean that it has been in existence for quite a long time and is successful. The University has a well established tradition of welcoming postgraduate students… … English dictionary
well-established — UK / US adjective having existed for a long time, and having been successful or accepted for a long time a well established company/hotel a well established practice/principle/tradition: It was a well established tradition until the turn of the… … English dictionary
well-established — /ˈwɛl əstæblɪʃt/ (say wel uhstablisht) adjective 1. having a reliable reputation, often of some years standing, and an apparently stable and successful future: *By this time anthropological studies of the Aboriginal were already well established… …
well-established — /wel i stab lisht/, adj. permanently founded; settled; firmly set: a well established business; a well established habit. [1700 10] * * * … Universalium
well-established — /wel i stab lisht/, adj. permanently founded; settled; firmly set: a well established business; a well established habit. [1700 10] … Useful english dictionary
well-established — adjective established for a long time and respected: a well established law firm … Longman dictionary of contemporary English
