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1 защита посевов
защита посевов
—
[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
crop protection
The problem of crop protection has changed dramatically since 1945. There is now a whole arsenal of chemicals with which to combat agricultural pests and diseases, but this development has itself many drawbacks. Such sophisticated techniques are available only to a minority of farmers; in most parts of the world the standard of crop protection remains abysmally low. In addition, modern crop protection methods have been criticized for relying too heavily on chemical control. Biological controls, both natural and contrived, have been neglected. In some cases involving misuse of agricultural chemicals, crops must be protected from the very measures intended for their protection. Meanwhile previously localized pests and diseases continue to spread worldwide. (Source: WPR)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
EN
DE
FR
Русско-французский словарь нормативно-технической терминологии > защита посевов
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2 номинальное напряжение ОПН
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
Русско-французский словарь нормативно-технической терминологии > номинальное напряжение ОПН
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3 устройство для отсчета текущего времени
устройство для отсчета текущего времени
внутренние часы
Прибор для отсчета текущего времени, являющийся частью конструкции СИ, используемый при применении методов измерений показателей КЭ, установленных в настоящем стандарте.
Примечание. Взаимосвязь между текущим временем СИ и временем "Национальной шкалы координированного времени Российской Федерации UTC (SU)" (см. 3.2) установлена в 4.6.
[ ГОСТ Р 51317.4.30-2008 (МЭК 61000-4-30:2008)]EN
Real-Time Clock
RTC
local timekeeping device used for implementing certain methods in this standard.
NOTE The relationship between the real-time clock and UTC is defined in 4.6.
[IEC 61000-4-30, ed. 2.0 (2008-10)]FR
Horloge Temps Réel
RTC
système d’horloge locale utilise pour implémenter certaines méthodes dans cette norme
NOTE La relation entre l’horloge temps réel et le temps UTC est défini en 4.6
[IEC 61000-4-30, ed. 2.0 (2008-10)]Тематики
- измерения неэлектр. величин прочие
Синонимы
EN
FR
Русско-французский словарь нормативно-технической терминологии > устройство для отсчета текущего времени
См. также в других словарях:
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