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: May 04, 2012 Last Revision: September 24, 2021

Summary of Topics b1666_5_20120504_sum.html

Subject 1666

Bulletin Dated: May 4, 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:

1. Revision to Scope
Back to Standard 1666, Edition 5

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