Tiêu chuẩn quốc tế
Số hiệu
Standard Number
EN 61557-4:2007
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 4: Resistance of earth connection and equipotential bondingIEC 61557-4:2007
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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 resistance of earth conductors, protective earth conductors and conductors for equipotential bonding, including their connections and terminals, with an indication of the measured value or indication of limits.
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