IEC 60851-1 Revised
IEC 60851-1:1985
Methods of test for winding wires. Part 1: General.
Gives methods for calculating the cyclic rating factor for cables
where the internal thermal capacitance can be neglected.
The simplified methods in this standard require only a knowledge of
the full shape of the load variation for not more than 6h
immediately preceding the time of maximum temperature and an
average value for times before that.
where the internal thermal capacitance can be neglected.
The simplified methods in this standard require only a knowledge of
the full shape of the load variation for not more than 6h
immediately preceding the time of maximum temperature and an
average value for times before that.
CHFÂ 20.-
A more recent version of this publication exists:
IEC 60851-1:2021+AMD1:2025 CSV