Commented version
A redline version in which an IEC expert has added significant and extensive comments explaining the main changes to the publication.
IEC 60287-2-1:2023 CMV
IEC 60287-2-1
IEC 60287-2-1:2023
Electric cables - Calculation of the current rating - Part 2-1: Thermal resistance - Calculation of thermal resistance
IEC 60287-2-1:2023 is solely applicable to the conditions of steady-state operation of cables at all alternating voltages, and direct voltages up to 5 kV, buried directly in the ground, in ducts, in troughs or in steel pipes, both with and without partial drying-out of the soil, as well as cables in air. The term "steady state" is intended to mean a continuous constant current (100 % load factor) just sufficient to produce asymptotically the maximum conductor temperature, the surrounding ambient conditions being assumed constant.
CHFÂ 280.-
Commented version
A redline version in which an IEC expert has added significant and extensive comments explaining the main changes to the publication.
DiscoverTechnical committee
TC 20 Electric cables| Publication type | International Standard |
| Publication date | 2023-05-22 |
| Edition | 3.0 |
| ICS | 29.060.20 |
| Stability date | 2030 |
| ISBN number | 9782832269817 |
| Pages | 47 |
| File size | 3.23 MB |
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