Standard 1581, Edition 4
Red Line
June 20, 2019
UL 1581

Reference Standard for Electrical Wires, Cables, and Flexible Cords

UL Red Line Edition 4 Published Date: June 20, 2019 Last Revision: November 29, 2023

Summary of Topics s1581_4_sum.html

Summary of Topics:

This revision to ANSI/UL 1581 dated June 20, 2019 includes the following change in requirements: Revised Table 50.138 for 300°C PFA

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