ICEA P-45-482:2017 PDF Download

ICEA P-45-482:2017 standard provides equations and parameters for calculating the short circuit performance of metallic shields and sheaths on insulated cables. The standard covers various types of sheaths and shields, including wires applied helically or longitudinally with corrugations, helically applied flat or overlapped tape, corrugated tape, and tubular sheaths.

The standard also considers different cable materials in contact with the sheath or shield, such as crosslinked (thermoset), thermoplastic, impregnated paper, and varnished cloth. It establishes temperature limits for these materials, ensuring their safety during short circuit conditions.

Using the equations provided in the standard, one can determine the maximum short circuit current allowed for a specific sheath or shield and short circuit duration. Alternatively, the equations can be used to determine the sheath or shield size required to carry a specific short circuit current for a given duration. It is also possible to calculate the maximum duration that a specific sheath or shield can sustain a particular short circuit current.