Subject 514B

Bulletin Dated: November 27, 2013

SUMMARY OF TOPICS

The following changes in requirements to the Standard for Conduit, Tubing and Cable Fittings, UL 514B, are being proposed for preliminary review and comment only:

1. For Preliminary Review Only: Proposed Revision And Addition Of Requirements Specific To Conduit Bodies To Distinguish Between Requirements Applicable To Conduit Bodies For Use With Rigid PVC Conduit And Requirements Applicable To Conduit Bodies For Use With Rigid Metal Conduit, Electrical Metallic Tubing and Intermediate Metal Conduit

2. For Preliminary Review Only: Proposed Revision And Addition Of Construction And Marking Requirements Specific To The Dimensional Criteria For Conduit Bodies To Align With Changes To The 2014 National Electrical Code

3. For Preliminary Review Only: Proposed Revision Of Requirements For Conduit Bodies To Clarify That The Cross-Sectional Area Of A Conduit Body Is Internal To The Body

4. For Preliminary Review Only: Proposed Revision And Deletion Of Requirements For Thread Count For The Connection Of Conduit As A Result Of The Introduction Of Thread Gaging Requirements

5. For Preliminary Review Only: Proposed Addition And Revision Of Construction And Test Requirements To Clarify Existing Requirements Specific To Reducing Washers For Use In Wet Locations or Liquid-Tight Applications

6. For Preliminary Review Only: Proposed Addition Of Clause 5.19.4 To Clarify Construction And Test Requirements For Sealing-Type Conduit Locknuts For Use In Wet Locations Or Liquid-Tight Applications

7. For Preliminary Review Only: Proposed Addition Of Construction And Test Requirements Applicable To Sealing Rings

8. For Preliminary Review Only: Proposed Addition Of Requirements To Specify Tools Required For The Assembly Of Fitting Samples To Be Tested

9. For Preliminary Review Only: Proposed Revision To Clause 8.5.3 To Allow The Use Of Demineralized Water As A Substitute For Distilled Water For The Metallic Coating Thickness Test

10. For Preliminary Review Only: Proposed Revision To Clause 8.5.4 To Align The Test Method For The Metallic Coatings Thickness Test With Similar Tests In Other UL Standards

11. For Preliminary Review Only: Proposed Revision To Clause 8.7.4 To Align The Test Method For The Wet Locations Test With Similar Tests In Other UL Standards

12. For Preliminary Review Only: Proposed Revision To Table 16 To Specify Thickness Requirements For Powdered Iron And Steel Material

13. For Preliminary Review Only: Proposed Addition And Revision Of Construction And Test Requirements For Corrosion Protection To Allow For The Use Of Metallic Coatings Other Than Zinc