SR EN 60664-1:2008

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

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 - through liquid insulation, - through gases other than air, - through compressed air. Main changes have been made with respect to the previous edition: - Amendment of Japanese mains conditions with regard to the rated impulse voltages, the rationalized voltages and the nominal voltages of supply systems for different modes of overvoltage control - Amendment of


Status : Withdrawn
Approval date : 2/29/2008
Publish date : 3/2/2008
Withdrawal date : 6/30/2023
Number of pages : 80
ICS : 29.080.01 Electrical insulation in general,29.080.30 Insulation systems
Technical Committee : 162 - Insulation co-ordination

Relations with other standards: