Standard 1666, Edition 5
UL 1666

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

UL CSDS Proposal Edition 5 Published Date: March 23, 2012 Last Revision: September 24, 2021

Summary of Topics b1666_5_20120326_sum.html

Subject 1666

Bulletin Dated: March 26, 2012

SUMMARY OF TOPICS

The following changes in requirements to the Standard for Test for Flame Propagation Height of Electrical and Optical-Fiber Cables Installed Vertically in Shafts, UL 1666, are being proposed for preliminary review and comment only:

1. For Preliminary Review Only: Revision to Scope
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