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UL 1666

UL 1666 Test for Flame Propagation Height of Electrical and Optical-Fiber Cables Installed Vertically in Shafts

standard by Underwriters Laboratories, 01/01/2000

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By order of the publisher, historical UL documents are not returnable for any reason. Once you place an order for an historical document, we cannot issue a refund, credit, or exchange of any kind.

This is a fire test for determining values of fla me propagation height for electrical and optical-fiber cables that are intended for installation vertically in shafts. T o beacceptable, each of the following is to be exhibited (see 9.1 - 9.3): The flame propagation height is not to equal or exceed 12 ft, 0 inch (3 m 66 cm). The temperature of any thermocouple at the 12 ft, 0 inch (3 m, 66 cm) height is not to exceed 850.0 F (454.4 C). The purpose of this test is to determine whether the flame propagation characteristics of these "riser" cables are in accordance with the National Electrical Code. This test does not investigate the toxicity of the products of combustion or decomposition.

This test does not cover the construction requirements for any cable or the electrical, optical, and other performance requirements for any cable.

 
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