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This Document Has Been Superseded
A newer publication replaces it: BSI BS EN IEC 60664-1
Insulation coordination for equipment within low-voltage systems -- Principles, requirements and tests
IEC 60664-1:2007 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. 1 000 V with rated frequencies up to 30 kHz, or a rated voltage up to d.c. 1 500 V. It specifies the requirements for clearances, creepage distances and solid insulation for equipment based upon their performance criteria. It includes methods of electric testing with respect to insulation coordination.
The minimum clearances specified in this standard do not apply where ionized gases occur. Special requirements for such situations may be specified at the discretion of the relevant technical committee. This standard does not deal with distances:
Main changes have been made with respect to the previous edition:
It has the status of a horizontal standard in accordance with IEC Guide 104.
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