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Standard 50, Edition 13

Enclosures for Electrical Equipment, Non-Environmental Considerations

UL CSDS Proposal
Standard 50, Edition 13 Edition Date: November 30, 2017
Summary of Topics b0050_13_20171130_sum.html

Subject 50

Bulletin Dated: November 30, 2017

SUMMARY OF TOPICS

The following changes in requirements to the Standard for Enclosures for Electrical Equipment, Non-Environmental Considerations, UL 50, are being proposed for preliminary review and comment only:

1. For Preliminary Review Only: Junction and Pull Boxes for Use in Air Handling Spaces

2. For Preliminary Review Only: Adhesives Used to Secure Observation Windows

3. For Preliminary Review Only: Add Definitions of Cabinet, Cutout Box, Junction Box, and Pull Box

4. For Preliminary Review Only: Restrictions on Use of Sheet Metals Screws

5. For Preliminary Review Only: Junction and Pull Boxes Less Than 100 Cubic Inches

6. For Preliminary Review Only: Clarification of Annex C for Components

7. For Preliminary Review Only: Clarification of Closure Opening for Polymeric Materials

8. For Preliminary Review Only: Sealants Used with Enclosures

9. For Preliminary Review Only: New Annex E for Adhesives, Enclosures, Non-mechanical Means of Securement

10. For Preliminary Review Only: Requirements for Encapsulated Enclosures

11. For Preliminary Review Only: Exemption of Crush and Impact Tests if Using Safety or Wire Mesh Glass in Large Openings

Back to Standard 50, Edition 13

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