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IEC 60664-1

Insulation coordination for equipment within low-voltage supply systems – Part 1: Principles, requirements and tests

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Organization: IEC
Publication Date: 1 May 2020
Status: active
Page Count: 172
ICS Code (Insulation systems): 29.080.30
scope:

This part of IEC 60664 deals with insulation coordination for equipment having a rated voltage up to AC 1 000 V or DC 1 500 V connected to low-voltage supply systems.

This document applies to frequencies up to 30 kHz.

NOTE 1 Requirements for insulation coordination for equipment within low-voltage supply systems with rated frequencies above 30 kHz are given in IEC 60664-4.

NOTE 2 Higher voltages can exist in internal circuits of the equipment.

It applies to equipment for use up to 2 000 m above sea level and provides guidance for use at higher altitudes (See 5.2.3.4).

It provides requirements for technical committees to determine clearances, creepage distances and criteria for solid insulation. It includes methods of electrical testing with respect to insulation coordination.

The minimum clearances specified in this document do not apply where ionized gases are present. Special requirements for such situations can be specified at the discretion of the relevant technical committee.

This document does not deal with distances:

- through liquid insulation;

- through gases other than air;

- through compressed air.

This basic safety publication focusing on safety essential requirements is primarily intended for use by technical committees in the preparation of standards in accordance with the principles laid down in IEC Guide 104 and ISO/IEC Guide 51.

One of the responsibilities of a technical committee is, wherever applicable, to make use of basic safety publications in the preparation of its publications.

However, in case of missing specified values for clearances, creepage distances and requirements for solid insulation in the relevant product standards, or even missing standards, this document applies.

Document History

IEC 60664-1
May 1, 2020
Insulation coordination for equipment within low-voltage supply systems – Part 1: Principles, requirements and tests
This part of IEC 60664 deals with insulation coordination for equipment having a rated voltage up to AC 1 000 V or DC 1 500 V connected to low-voltage supply systems. This document applies to...
April 1, 2007
Insulation coordination for equipment within low-voltage systems – Part 1: Principles, requirements and tests
Scope and object This part of IEC 60664 deals with insulation coordination for equipment within low-voltage systems. It applies to equipment for use up to 2 000 m above sea level having a rated...
November 1, 2002
Insulation coordination for equipment within low-voltage systems – Part 1: Principles, requirements and tests CORRIGENDUM 1
This part of IEC 60664 deals with insulation coordination for equipment within low- voltage systems. It applies to equipment for use up to 2 000 m above sea level having a rated voltage up to a.c. 1...
June 1, 2002
Insulation coordination for equipment within low-voltage systems – Part 1: Principles, requirements and tests
A description is not available for this item.
April 1, 2000
Insulation Coordination for Equipment within Low-Voltage Systems - Part 1: Principles, Requirements and Tests
A description is not available for this item.
October 1, 1992
Insulation Coordination for Equipment within Low-Voltage Systems Part 1: Principles, Requirements and Tests
A description is not available for this item.

References

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