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ICEA P-45-482

SHORT CIRCUIT PERFORMANCE OF METALLIC SHIELDS AND SHEATHS ON INSULATED CABLE

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Organization: ICEA
Publication Date: 6 June 2017
Status: active
Page Count: 15
scope:

Equations and parameters have been established for short circuit calculations for sheaths or shields made of aluminum, bronze, copper, lead, steel, zinc and cupronickel alloys. The types of sheaths or shields included are:

• Wires, applied either helically, as braid or serving; or longitudinally with corrugations.

• Helically applied flat tape, not overlapped.

• Helically applied, overlapped, flat tape.

• Corrugated tape, longitudinally applied.

• Tubular sheath

The types of cable materials in contact with the sheath or shield are: crosslinked (thermoset), thermoplastic, impregnated paper, and varnished cloth.

The materials which determine the maximum allowable short circuit temperatures are: paper, varnished cloth and several thermoplastic and thermosetting materials presently appearing in ICEA standards. Temperature limits, considered safe, were established for the various coverings and insulation materials.

The equations may be used to determine:

• The maximum short circuit current permitted for a specific sheath/shield and short circuit duration.

• The sheath/shield size necessary to carry a specific short circuit current for a given duration.

• The maximum duration a specific sheath/shield can carry a specific short circuit current.

Document History

ICEA P-45-482
June 6, 2017
SHORT CIRCUIT PERFORMANCE OF METALLIC SHIELDS AND SHEATHS ON INSULATED CABLE
Equations and parameters have been established for short circuit calculations for sheaths or shields made of aluminum, bronze, copper, lead, steel, zinc and cupronickel alloys. The types of sheaths...
February 27, 2013
SHORT CIRCUIT PERFORMANCE OF METALLIC SHIELDS AND SHEATHS ON INSULATED CABLE
Equations and parameters have been established for short circuit calculations for sheaths or shields made of aluminum, bronze, copper, lead, steel, zinc and cupro-nickel alloys. The types of sheaths...
June 20, 2007
Short Circuit Performance of Metallic Shields and Sheaths on Insulated Cables
Equations and parameters have been established for short circuit calculations for sheaths or shields made of aluminum, bronze, copper, lead, steel, zinc and cupro-nickel alloy. The types of sheaths...
October 1, 2005
Short Circuit Performance of Metallic Shields and Sheaths on Insulated Cables
A description is not available for this item.
April 1, 1999
Short Circuit Characteristics of Metallic Shields and Sheaths on Insulated Cable
A description is not available for this item.
March 1, 1994
Short Circuit Performance of Metallic Shields and Sheaths on Insulated Cable
A description is not available for this item.

References

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