Standard 50E, Edition 2
UL 50E
SUPERSEDED

Enclosures for Electrical Equipment, Environmental Considerations

UL CSDS Proposal Published Date: November 30, 2017 Last Revision: October 16, 2015
Summary of Topics b0050e_2_20171130_sum.html

Subject 50E

Bulletin Dated: November 30, 2017

SUMMARY OF TOPICS

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

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

2. For Preliminary Review Only: Alternate Investigation to Tensile Strength and Elongation Test for Gaskets

3. For Preliminary Review Only: Clarification of Additional Corrosion Protection

4. For Preliminary Review Only: Expand Eligible Grades of Austenitic Stainless Steel in UL 50E

5. For Preliminary Review Only: Alternative Aging for Gasket Tensile Strength and Elongation Tests

6. For Preliminary Review Only: Allowance of X Ray Spectrometry for Metallic Coating Thickness Test

7. For Preliminary Review Only: Allowance for Type Rated Ventilated Enclosures

8. For Preliminary Review Only: Orientation of Sample for Hosedown Test

9. For Preliminary Review Only: Length of Conduit for Misalignment Test

10. For Preliminary Review Only: Required Torque for Conduit Hubs for Misalignment Test

11. For Preliminary Review Only: Creep Test for Polymeric Gaskets

12. For Preliminary Review Only: Sealants Used with Enclosures

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

14. For Preliminary Review Only: Requirements for Encapsulated Enclosures

15. For Preliminary Review Only: Typo Correction in Table 5

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