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IEC 60724

3.1 Edition, November 1, 2008

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Short-circuit temperature limits of electric cables with rated voltages of 1 kV (Um = 1,2 kV) and 3 kV (Um = 3,6 kV)



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Product Details:

  • Revision: 3.1 Edition, November 1, 2008
  • Published Date: November 2008
  • Status: Active, Most Current
  • Document Language: English, French
  • Published By: International Electrotechnical Commission (IEC)
  • Page Count: 24
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

This International Standard gives guidance on the short-circuit maximum temperature limits of electric cables having rated voltages of 1 kV (Um = 1,2 kV) and 3 kV (Um = 3,6 kV), with regard to the following:

 – insulating materials;

– oversheath and bedding materials;

– conductor and metallic sheath materials and methods of connection.

The design of accessories and the influence of the installation conditions on the temperature limits are taken into consideration.

The calculation of the permissible short-circuit current in the current-carrying components of the cable should be carried out in accordance with IEC 60949.