Tiêu chuẩn quốc tế
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Số hiệu
Standard Number
EN 61557-11:2009
Năm ban hành 2009
Publication date
Tình trạng
A - Còn hiệu lực
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Tên tiếng Anh
Title in English 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 - Part 11: Effectiveness of residual current monitors (RCMs) type A and type B in TT, TN and IT systemsIEC 61557-11:2009
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Giá:
Price Liên hệ / Contact us
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Phạm vi áp dụng
Scope of standard This part of IEC 61557 specifies the requirements for testing equipment applied to the testing of the effectiveness of residual current monitors (RCMs) of type A and type B, which are already installed in distribution systems. This test equipment can be used in any kind of network like a TN, TT or IT system. The test equipment may also be used for testing directionally discriminating RCMs in IT-Systems.
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