Standard 797, Edition 9
UL 797

Electrical Metallic Tubing - Steel

UL CSDS Proposal Edition 9 Published Date: February 15, 2019 Last Revision: April 28, 2023


Summary of Topics b0797_9_20190215_sum.html

Subject 797

Bulletin Dated: February 15, 2019


The following changes in requirements to the Standard for Electrical Metallic Tubing - Steel, UL 797, are being proposed:

1. Annex A Normative References Update

2. Interpretation of Flammability Test Result for a Thin Nonmetallic Topcoat (Outermost Layer) of an Alternate Corrosion Protection System

3. Clarification of Elbow and Bend Radius Requirements, Removal of the Term Mandrel, Removal of Figure 2 and Addition of Exemption for Supplementary Coatings from Bend Test to Better Align with RMC Standard and Editorial Changes

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