Tiêu chuẩn quốc tế
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Số hiệu
Standard Number
EN 61557-3:2007
Năm ban hành 2007
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 3: Loop impedanceIEC 61557-3:2007
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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 applicable to equipment for measuring the loop impedance between a phase conductor and the protective conductor or between a phase conductor and neutral or between two phase conductors by using the voltage drop when the circuit under test is loaded.
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