EN 60255-5


EN 60255-5 Electrical Relays - Part 5: Insulation coordination for measuring relays and protection equipment - Requirements and tests - Withdrawn

This part of IEC 60255 gives general requirements for the insulation coordination of measuring relays and protection equipment.

This standard specifies the following:
  • Definition of terms
  • Guidance for the selection of clearances and creepage distances and other aspects related to the insulation of measuring relays and protection equipment
  • Requirements for voltage tests and insulation resistance measurement
This standard is applicable to the installation and use at altitudes up to 2000 m of equipment having a rated a.c. voltage up to 1000 V, with a rated frequency up to 65 Hz, or a d.c. voltage up to 1500 V. Note: this publication has been replaced by IEC 60255-27 Preview Standard

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