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IEC 60287-3-1

Electric cables – Calculation of the current rating – Part 3-1: Operating conditions – Site reference conditions

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Organization: IEC
Publication Date: 1 June 2017
Status: active
Page Count: 54
ICS Code (Cables): 29.060.20
scope:

This part of IEC 60287-3 is applicable to the conditions of steady-state operation of cables at all voltages, buried directly in the ground, in ducts, 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.

This document defines site reference conditions, however the general values are superseded by specific national requirements.

Document History

IEC 60287-3-1
June 1, 2017
Electric cables – Calculation of the current rating – Part 3-1: Operating conditions – Site reference conditions
This part of IEC 60287-3 is applicable to the conditions of steady-state operation of cables at all voltages, buried directly in the ground, in ducts, troughs or in steel pipes, both with and without...
May 1, 1999
Electric Cables - Calculation of the Current Rating - Part 3-1: Sections on Operating Conditions - Reference Operating Conditions and Selection of Cable Type
This section of IEC 60287-3 is 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,...
January 1, 1995
Electric Cables - Calculation of the Current Rating - Part 3: Sections on Operating Conditions - Section 1: Reference Operating Conditions and Selection of Cable Type
A description is not available for this item.

References

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