Home wiring question

[DaleT]

I'm in the process of adding a built in dishwasher, for the girlfriend, and have a couple of questions, mainly to insure my safety and the safety of the house and homeowner. I am adding a seperate circuit for it. My first question is, when using a "whip" (wires in metal conduit) how do you attach the ground to the wires from the main panel? Is it a simple tieing of the three wires (black, white, and green) together. They are being attached in a junction box. Second, to complete the ground circuit on the wiring should the wire be stripped at some point and attached to a cold water pipe or simply run to the main box? I'm not at this time sure if the box has the ability to handle the ground, with a ground bar, other than the neutral bar.

 

[pmueller]

Re: Home wiring question

Dale, in addition to any answers here, you may want to check out "doityourself.com" and go to the electrical forum. A number of certified electricians there.

 

[ebbtide176]

Re: Home wiring question

DaleT, i certainly would ck that link for any/all info you can gather. i can offer my thoughts to help you get informed. if you have the metal conduit coming from DW, then it should tie into a junction box you install nearby, with collar, and solid cover. from junction box, you should have 12/3 wire running back to your new circuit breaker. <br /><br />if the DW has the pigtail in metal flex you describe, then it probably has the bare/green ground wire already connected to the frame inside DW. the green and/or bare wire will connect to bare wire in 12/3 which runs back to block in breaker box. it is tied to a grounding rod outside bldg. the black goes from DW back to new circuit brkr, the white to block in breaker box with other whites. <br /><br />Hope this might help get an idea of what is needed. you might need to check on whether regs req a GFI circuit for a DW.<br /><br />BTW, if crabbait notices this post and comments, you will have the advice of a certified electrician.

 

[crab bait]

Re: Home wiring question

thanks for the intro EBB.. your knowledge an advice here is impeccable.. <br /><br />DALE ,, it's a little hard tryin' to follow what your sayin'... but i try..<br /><br />the 'WHIP' of conduit has me confused.. i'd call a cord from an appliance a 'whip'.. <br /><br />in your case the conduit an wires must be transfered to the DW wires via a juncton box ..preferably a ' 4" square' metal box ann cover.. just make sure you wrap a ground wire ( bare or 'skinned green wire ) around a 10-32 green ground screw in the j/b.. <br /> <br />then wire nut the black to black ..white to white .. an all grounds together..<br /><br />as far as what your sayin' back at the panel as far as a 'grounding block'..<br /><br />if'n its a/the MAIN panel,, a 3 wire system ( 2 wires & a bare ground ) commin' from the utilities from the outside.. .. there's no need an calls for NONE..<br /><br />ALL NEUTRALS (WHITES ) an grounds go to the SAME terminal strip/block..an the 'BONDING' screw must be installed <br /><br />if'n its a SUB panel ( secondary panel ) then there must be 4 wires (2 hot wires, 1 white/gray, an a ground..<br /><br />in this panel.. all nuetrals an all grounds must be separate.. two separate terminal strips ,,insulated from one another..NO bonding screw installed.. <br /><br />hope this helps..

 

[DaleT]

Re: Home wiring question

Thanks guys, the information you provided helped to clear up the misunderstandings I had from other sites.