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UL 1666

5th Edition, January 31, 2017

Complete Document

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

Includes all amendments and changes through Revision Page(s) , January 31, 2017

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Product Details:

  • Revision: 5th Edition, January 31, 2017
  • Published Date: January 31, 2017
  • Status: Active, Most Current
  • Document Language: English
  • Published By: UL (UL)
  • Page Count: 19
  • ANSI Approved: Yes
  • DoD Adopted: No

Description / Abstract:

This is a fire test for determining values of flame propagation height for electrical and optical-fiber cables that are for installation vertically in shafts or in vertical runs that penetrate one or more floors. 

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 or corrosivity 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.