EN 61557-4

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 4: Resistance of earth connection and equipotential bonding (IEC 61557-4:1997)

1997-03-00

Hết hiệu lực

DIN EN 61557-4 (1998-05), IDT * BS EN 61557-4 (1997-07-15), IDT * NF C42-198-4 (1997-07-01), IDT * IEC 61557-4 (1997-02), IDT * SN EN 61557-4 (1997), IDT * SN EN 61557-4 (2007), 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 * TS EN 61557-4 (2002-04-19), IDT * STN EN 61557-4 (2001-10-01), IDT * CSN EN 61557-4 (1998-10-01), IDT * DS/EN 61557-4 (1998-01-09), IDT * NEN-EN-IEC 61557-4:1997 en (1997-04-01), IDT

EN 61557-1 (1997-03) * EN 61010-1 (1993-04) * IEC 61010-1 (1990-09) * IEC 61557-1 (1997-02)

prEN 61557-4 (1996-09)

EN 61557-4 (2007-03)

EN 61557-4 (2007-03) * EN 61557-4 (1997-03) * prEN 61557-4 (1996-09) * prEN 50197-4 (1994-08)

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

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