IEC 61557-3:1997
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 3: Loop impedance

Standard No.

IEC 61557-3:1997

Release Date

1997

Published By

International Electrotechnical Commission (IEC)

Status

Withdraw 2007-01

Replace By

IEC 61557-3:2007

Latest

IEC 61557-3:2019 RLV

Scope

The requirements specified in this part of GB/T 18216 apply to equipment that measures the loop impedance between a phase conductor and a protective conductor or between a phase conductor and a neutral conductor or between two phase conductors by loading the circuit under test to produce a voltage drop.

IEC 61557-3:1997 history

• 0000 IEC 61557-3:2019 RLV
• 2007 IEC 61557-3:2007 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 3: Loop impedance
• 1997 IEC 61557-3:1997 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 3: Loop impedance