EN 60255-22-4:2008

Measuring relays and protection equipment - Part 22-4: Electrical disturbance tests - Electrical fast transient/burst immunity test

Publication date:   Sep 5, 2008

General information

99.60 Withdrawal effective   Jun 28, 2016

CENELEC

CLC/TC 95X Measuring relays and protection equipment

European Norm

29.120.70   Relays

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Scope

IEC 60255-22-4:2008 specifies the general requirements for electrical fast transient immunity tests for measuring relays and protection equipment for power system protection, including the control, monitoring and process interface equipment used with these systems. Is based on IEC 61000-4-4. The objective of the tests is to confirm that the equipment under test will operate correctly when energized and subjected to repetitive fast transients (bursts) such as those originating from interrupting of inductive loads, relay contact bounce, etc. The main change with respect to the previous edition is the improvement of the test severity level regarding the repetition rate.

Life cycle

PREVIOUSLY

WITHDRAWN
EN 60255-22-4:2002

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WITHDRAWN
EN 60255-22-4:2008
99.60 Withdrawal effective
Jun 28, 2016

REVISED BY

PUBLISHED
EN 60255-26:2013