Каталог BS — национальные стандарты Великобритании
найдено документов: 43921 страниц: 2197
BS EN 61557-11:2009
Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Equipment for testing, measuring or monitoring of protective measures. Effectiveness of residual current monitors (RCMs) type A and type B in TT, TN and IT systemsКоличество страниц: 24 Статус:
BS EN 61557-13:2011
Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. Equipment for testing, measuring or monitoring of protective measures. Hand-held and hand-manipulated current clamps and sensors for measurement of leakage currents in electrical distribution systemsКоличество страниц: 26 Статус:
BS EN 61557-16:2015
Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. Equipment for testing, measuring or monitoring of protective measures. Equipment for testing the effectiveness of the protective measures of electrical equipment and/or medical electrical equipmentКоличество страниц: 24 Статус:
найдено документов: 43921 страниц: 2197