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

Standard No.

IEC 61557-3:2007

Release Date

2007

Published By

International Electrotechnical Commission (IEC)

Status

Be replaced

Replace By

IEC 61557-3:2019 RLV

Latest

IEC 61557-3:2019 RLV

Replace

IEC 85/292/FDIS:2006 IEC 61557-3:1997

Scope

This part of IEC 61557 specifies the requirements applicable to equipment for measuring the loop impedance between a phase conductor and the protective conductor or between a phase conductor and neutral or between two phase conductors by using the voltage drop when the circuit under test is loaded.

IEC 61557-3:2007 Referenced Document

• IEC 61010-1:2001 Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 1: General requirements
• IEC 61557-1 Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures - Part 1: General requirements*， 2019-07-26 Update

IEC 61557-3:2007 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