BS EN 61857-1:2005
$102.76
Electrical insulation systems. Procedures for thermal evaluation – General requirements. Low-voltage
| Published By | Publication Date | Number of Pages |
| BSI | 2005 | 20 |
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 basic 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. This second edition cancels and replaces the first edition published in 1998, and constitutes a technical revision to make this basic standard compatible with parts 21 and 22.
