IEC 60287-3-1 Electric Cables - Calculation of the Current Rating - Part 3-1: Sections on Operating Conditions - Reference Operating Conditions and Selection of Cable Type

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IEC 60287-3-1 Document Information:

Title
Electric Cables - Calculation of the Current Rating - Part 3-1: Sections on Operating Conditions - Reference Operating Conditions and Selection of Cable Type

Cables Electriques - Calcul Du Courant Admissible - Partie 3-1: Sections Concernant Les Conditions De Fonctionnement - Conditions De Fonctionnement De Reference Et Selection Du Type De Cable

International Electrotechnical Commission

Publication Date:
May 1, 1999

Scope:

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, 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 section concerns reference operating conditions and selection of cable type.

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