Số hiệu tiêu chuẩn
EN 61557-7
Tên tiêu chuẩn
Electrical safety in low voltage distribution systems up to 1 kV a.c. and 1,5 kV d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 7: Phase sequence (IEC 61557-7:1997)
Ngày phát hành
1997-03-00
Tiêu chuẩn tương đương
DIN EN 61557-7 (1998-05), IDT * BS EN 61557-7 (1997-07-15), IDT * NF C42-198-7 (1997-07-01), IDT * IEC 61557-7 (1997-02), IDT * SN EN 61557-7 (1997), IDT * SN EN 61557-7 (2007), IDT * OEVE EN 61557-7 (1997-04-16), IDT * PN-EN 61557-7 (2002-08-15), IDT * PN-EN 61557-7 (2004-04-14), IDT * SS-EN 61557-7 (1998-02-27), IDT * UNE-EN 61557-7 (1998-09-24), IDT * STN EN 61557-7 (2001-10-01), IDT * CSN EN 61557-7 (1998-10-01), IDT * DS/EN 61557-7 (1998-01-09), IDT * NEN-EN-IEC 61557-7:1997 en (1997-04-01), IDT
Từ khóa
Control instruments * Controlling * Currents * Datum * Definitions * Direct current installations * Direction of rotating field * Distribution systems * Electric mains * Electrical * Electrical engineering * Electrical safety * Electromagnetic tests * Grids * Indications * Influence quantity * Inscription * Installations for rated voltages * Instructions for use * Instruments * Limits (mathematics) * Low voltage mains * Low-voltage equipment * Low-voltage installations * Measurement * Measuring * Measuring equipment * Measuring instruments * Monitoring * Nominal use * Operating instructions * Output voltage * Phase sequence * Plant * Protection * Protective measures * Rated current * Rated voltage * Reference conditions * Resistance measurement * Specification (approval) * Specimens * Supply voltages * Surveillance (approval) * Test equipment * Testing * Testing set-ups * Use * Nets * Network