IEC 61557-4*CEI 61557-4

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 - Part 4: Resistance of earth connection and equipotential bonding

1997-02-00

Hết hiệu lực

DIN EN 61557-4 (1998-05), IDT * BS EN 61557-4 (1997-07-15), IDT * GB/T 18216.4 (2007), IDT * EN 61557-4 (1997-03), IDT * NF C42-198-4 (1997-07-01), IDT * OEVE EN 61557-4 (1997-04-16), IDT * PN-EN 61557-4 (2003-04-30), IDT * SS-EN 61557-4 (1998-02-27), IDT * UNE-EN 61557-4 (1998-09-24), IDT * GOST R IEC 61557-4 (2007), IDT * TS EN 61557-4 (2002-04-19), IDT * STN EN 61557-4 (2001-10-01), IDT * CSN EN 61557-4 (1998-10-01), IDT * NEN-EN-IEC 61557-4:1997 en (1997-04-01), IDT

IEC 61010-1*CEI 61010-1 (1990-09) * IEC 61557-1*CEI 61557-1 (1997-02)

IEC 85/92/FDIS (1996-09)

IEC 61557-4*CEI 61557-4 (2007-01)

IEC 61557-4*CEI 61557-4 (2007-01) * IEC 61557-4*CEI 61557-4 (1997-02) * IEC 85/92/FDIS (1996-09) * IEC 85/43/CDV (1994-12)

Control instruments * Definitions * Deviations * Direct current installations * Drift * Earth conductors * Earth connectors * Earthing * Electrical engineering * Electrical safety * Electromagnetic tests * Equipotential bonding conductors * Grids * Inscription * Installations for rated voltages * Instruments * Low voltage mains * Low-voltage installations * Measurement * Measuring equipment * Measuring instruments * Operating instructions * Potential equalization * Protection * Protective measures * Resistance measurement * Resistors * Specification (approval) * Surveillance (approval) * Test equipment * Testing * Nets * Network * Resistance * Variations

17.220.20. Ðo các đại lượng điện và từ

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