IEC TR 61641:1996
Enclosed low-voltage switchgear and controlgear assemblies - Guide for testing under conditions of arcing due to an internal fault
This technical report makes allowance for internal overpressure acting on covers, doors, etc. and also takes into consideration the thermal effects of the arc or its roots on the enclosures and of ejected hot gases and glowing particles, but not damage to internal partitions.
This technical report makes allowance for internal overpressure acting on covers, doors, etc. and also takes into consideration the thermal effects of the arc or its roots on the enclosures and of ejected hot gases and glowing particles, but not damage to internal partitions.
This technical report applies to enclosed low-voltage switchgear and controlgear assemblies hereafter called ASSEMBLIES manufactured according to IEC 60439-1. This second edition cancels and replaces the first edition (1996) and constitutes a technical revision. The main change introduced in this new edition is the following: the concept of ASSEMBLY protection under arcing conditions has been introduced.
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