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post #21 of 63 (permalink) Old 07-28-2016, 05:38 PM
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OK, it would seem that I should use 12/3 wire, but my question is...do I ignore the bare copper wire ?


Thanks.....Gary
12/2 = one black. one white wire..
12/2 w/G - add a green wire...
12/3 - add a red...
12/3 w/G - add a green...

The moment I read ""BARE COPPER"" all of the alarm bells went off...
if you have a bare copper wire is more than likely that you are trying to use (or plan on) ordinary household wire/cable as in in a NM type for non-exposed locations as in installed in walls...
THAT IS THE WRONG WIRE FOR YOU TO USE....
and it's mechanical protection really sucks...
PLEASE DON'T DO IT...

use machine cord/cable (Portable Power Cables/ SO Cord / SJ Cord / SOW Cord / Hard Usage Cord) as it was designed to be used..
like you are SUPPOSE to use...
like you are GOING to use
there aren't any allowed alternatives short of hard wiring..

SO Cords|SO Cables|Four Conductor Cable|4 wire power cable|SJ Cord|SOW Cable|Type W Cable

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post #22 of 63 (permalink) Old 07-28-2016, 05:45 PM
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On the bare copper... it would always go an a piece of machinery. There is an exception; if something like a corded hand tool is designed as a DOUBLE INSULATED tool, it will come factory equipped with a 2-wire cord/ no ground. It'll have a moulded plug and isn't supposed to be tampered with. We all do it anyways.
The proper designation for a cable is gauge of cable/number of conductors/ ground wire (or not) ie #12/2/1 ...12 ga x 2 conductors and with a ground wire.
We had this discussion here a while back. The conductors are designed to conduct electricity within a cct. The ground wire is technically not a 'conductor' and shouldn't be part of the cct. It's a safety device.

Dan...
machine cord hasn't got bare copper wire in it...
NM, MC or BX does...

FWIW...
most any real extension cord is machine cord...
and 600V jackets offer way more mechanical protection than a 300V casings..

This would have been the week that I'd have finished chewing thru the restraints...
If only new layers hadn't been added....

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post #23 of 63 (permalink) Old 07-28-2016, 06:05 PM
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Gary...
FWIW...
I keep an assortment of outdoor flexible extension cords on hand in 16~12GA in 10, 15, and 25' lengths...

power tool cords that need replacing get an extension cord instead. of an OEM cord..
cut the female end off and install the new cord...
long tool cords sure are nice...
for stationary tools I have bulk machine cord...
rubber jackets mark everything up w/ black streaks... (drag/rub one over/on your project and tell us what you think)...
PVC is stiff and kinky... uncooperative..
SJEOW is major tough, lay flat, co curls. non-marking and flexible cordage that works w/ you...

This would have been the week that I'd have finished chewing thru the restraints...
If only new layers hadn't been added....

Stick....
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post #24 of 63 (permalink) Old 07-28-2016, 06:35 PM
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It looks like with the Hubell twistlock plug, it is Brass, Brass, Green for the screw colors. So I will need to be careful to get the wires to the same screws.



Gary
It's easy to remember, Gary. Brass and Copper are similar; the white insulation goes with the silver, and green to green.

It's like Port and Starboard. Port is a red wine.
Red is also associated with communism ie the left.
Glad I could help!
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post #25 of 63 (permalink) Old 07-28-2016, 06:38 PM
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Gary my 3hp Unisaw is wired with 12/2 but I used BX cable (armored) because it's where I can walk on it, or drop something on it. Mine is a pretty short run. There is only about 15' of wire from the saw to the panel.
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post #26 of 63 (permalink) Old 07-28-2016, 06:55 PM Thread Starter
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Stick - I just did a google search on #12/3 wire. It showed an example with 3 insulated wires, black white and green, and a bare copper wire. So from that I had figured that was how the wire normally was made. I haven't purchased any wire yet. I will probably do that tomorrow.


Thanks....Gary
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post #27 of 63 (permalink) Old 07-28-2016, 07:10 PM
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Stick - I just did a google search on #12/3 wire. It showed an example with 3 insulated wires, black white and green, and a bare copper wire. So from that I had figured that was how the wire normally was made. I haven't purchased any wire yet. I will probably do that tomorrow.


Thanks....Gary
think extension cord tpe/style/look alike and no bare copper...
SO Cords|SO Cables|Four Conductor Cable|4 wire power cable|SJ Cord|SOW Cable|Type W Cable
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post #28 of 63 (permalink) Old 07-28-2016, 07:23 PM Thread Starter
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Got it...thanks again Stick !!


Gary
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post #29 of 63 (permalink) Old 07-28-2016, 08:26 PM
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Quote:
Originally Posted by gjackson52 View Post
Stick - I just did a google search on #12/3 wire. It showed an example with 3 insulated wires, black white and green, and a bare copper wire. So from that I had figured that was how the wire normally was made. I haven't purchased any wire yet. I will probably do that tomorrow.


Thanks....Gary
Two ground wires? ???? Can you post the link, Gary?
That's pretty strange; some kind of audio visual or communication wiring?
And from what you described, that's 12/2/2
Only the Blk and the Wht are counted as conductors. If there was a third conductor (the Grn) it'd be Red insulated.
SJ Cord/SO Cord/SO Cable/Multiconductor Cable/Four Conductor Cable/4 wire power cable
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post #30 of 63 (permalink) Old 07-28-2016, 08:27 PM
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If it was me I would buy 10 ga for 110 volt and 12 ga for 220 volt. 110 volt is easy just buy a good extension cord and cut the female end off. 220 volt will probably require you to buy wire and a plug. 110 volt runs twice the amps as 220 volts so you need heavier wire for 110.
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