IEEE 848-1996
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IEEE Standard Procedure for the Determination of the Ampacity Derating of Fire-Protected Cables
This standard provides a detailed test procedure for determining the ampacity or derating factor in the following installation configurations: 1) Block-out or sleeve type cable penetration fire stops. 2) Conduits covered with a protective material. 3) Tray covered with a protective material. 4) Cable directly covered or coated with a fire-retardant material. 5) Free-air drops enclosed with a protective material.
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