COMMENT 7-49, 7-50, 7-51 Devices of insulating material.

Status
Not open for further replies.

fmtjfw

Senior Member
I'm looking for constructive criticism on the following, and if you think it is merited, support in the form of comments from you on 7-49, 7-50, 7-51. Thanks, Jim Williams

4 Comment:

Revise the following text:

(B) Devices of Insulating Material. Self-contained switches, self-contained receptacles, and nonmetallic-sheathed cable interconnector devices of insulating material that are listed shall be permitted to be used without boxes in exposed cable wiring and for repair wiring in existing buildings where the cable is concealed. Openings in such devices shall form a close fit around the outer covering of the cable, and the device shall fully enclose the part of the cable from which any part of the covering has been removed. Where connections to conductors are by binding-screw terminals, there shall be available as many terminals as conductors.

Only listed nonmetallic-sheathed cable interconnector devices are allowed to be concealed.

red indicates deleted text.

5 Statement of Problem and Substantiation.

The last sentence in the first paragraph is unnecessary. It is covered by the general rule found in UL White Book AALZ and is not repeated whenever binding screws are referenced in the rest of the NEC.

The second paragraph addresses my concern about concealed switches and receptacles that the original text would appear to allow.

The fewer concealed splices the better.
 
Status
Not open for further replies.
Top