BS EN 61857-1:2009
Electrical insulation systems – Procedures for thermal evaluation — Part 1: General requirements – Low-voltage

Standard No.

BS EN 61857-1:2009

Release Date

2009

Published By

British Standards Institution (BSI)

Latest

BS EN 61857-1:2009

Scope

This part of IEC 61857 specifies a general test procedure for the thermal evaluation and qualification of electrical insulation systems (EIS) and establishes a procedure that compares the performance of a candidate EIS to that of a reference EIS. This standard is applicable to existing or proposed EIS used in electrotechnical products with an input voltage of up to 1 000 V where the thermal factor is the dominating ageing factor.

BS EN 61857-1:2009 history

• 2009 BS EN 61857-1:2009 Electrical insulation systems – Procedures for thermal evaluation — Part 1: General requirements – Low-voltage
• 2005 BS EN 61857-1:2005 Electrical insulation systems - Procedures for thermal evaluation - General requirements - Low-voltage