IEC 60287 : 82 AMD 3 93被替代
CALCULATION OF THE CONTINUOUS CURRENT RATING OF CABLES (100% LOAD FACTOR)
出版：International Electrotechnical Committee
专家解读视频
Deals solely with the condition of steady-state operation of cables at all alternating voltages, and direct voltages up to 5 kV, buried directly in the ground, in ducts, troughs or in steel pipes, 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. Note. Appendix A - Reference ambient temperatures, and thermal resistivities of soils in various countries. Appendix B - Information required from the purchaser for the selection of the appropriate type of cable. Appendix C - Digital calculation of quantities, graphically.
UNE 20435 : 1982 - Identical
CEI 20-21 : 2ED 1988 - Identical
NEN 10287 : 1994 - Identical
CEI 20-21 : 2ED 1988 - Identical
NEN 10287 : 1994 - Identical
UNE 20435 : 1982 - Identical
