Posted by John T on July 12, 2013 at 08:51:50 from (216.249.76.176):
In Reply to: electric question posted by Larry NEIL on July 12, 2013 at 08:11:31:
Okay, yes Im rusty on the latest Codes, but when I practiced electrical engineering, and I doubt its changed, heres how I approached it:
Im unsure from your post if you meant splicing OUTSIDE THE BOX?? If so I NEVER specified such
1) A splice should be made inside an approved and accessible located JUNCTION OR SWITCH BOX.........Thats NOT somewhere in the wall OUTSIDE any box!!!!!!!!!!!
2) All conductive non current carrying boxes and enclosures and raceways etc should be connected to the Equipment Ground, i.e. any metallic junction or switch boxes etc NEED TO BE GROUNDED!!!!!!!!!!!
3) I sometimes specified those greenie grounding wire nuts that have a hole in the center so one of the longer bare/green equipment GroundING conductos gets spliced to other conductors as needed and can then extend out for connection to the box or receptacles green GroundING screw.
4) I liked those green GroudING Pigtails with a ring or spade terminal on one end for attachment to the box (other end to appropriate GroundING Conductor) so it got its ground.
5) I preferred BOTH the receptacles green GroundING screw terminal PLUS the metal box to be grounded and I DID NOT rely on the fact the receptacle was screwed into the metal box as proper GroundING for the box.
6) To address vibration or movement of boxes, I liked to leave a flexible expansion loop of wire between its last fastener and the box itself. The wire, of course, was attached to the box using romex clamps or those clamp down type of boxes intended for romex.
7) With proper splice methods, there shouldnt be any exposed or bare Hot or Neutral wires inside the box that might get shorted to the GroundING conductors. I specified the deep boxes with more room for wires and splices if things got tight or crowded.
AS I ALWAYS PREACH consult with local authority and competent qualified professional electricians and engineers (NOT me Im rusty on this stuff) and trust them over non trained yet still know it all Billy Bobs and brother in law Bubba who crawl out of the woodwork lol.
Of course, you can wire it as you please, its your building and life and your risk and your choice, NOT anyone here.
DISCLAIMER I have no code book handy and if I did its olddddddddd, I'm unsure if GroundING Conductor splices are same as Hot or Neutral in that their splices must also be inside approved accessible junction or switch boxes but my thinkin is they sure do AND REGARDLESS Id still make any such splices ONLY inside a box, not where rats n bugs might get to them SO THERE LOL
If I missed anything hopefully the other more current and practicing knowledgeable professional electricians and engineers can add to or confirm this........Im too old to remember all this lol
PS When I designed I never ran a branch circuit that had BOTH lights and receptacles. I kept lighting branch circuits seperate from receptacle circuits. If I triped a breaker feeding a recp I just plugged something into that was hazard enough, let alone the lights also going out and not being on when I re wired a new receptacle........
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