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Old 08-30-2011, 08:56 PM   #1
gumbudah
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Default 220v wire colors

i need to set up a 220v circuit. Dont recall what the load is but i think 12 gage will work. So i need a ground and two hot legs. Will std romex with black and white conductors work ordo the make special romex with black red and gnd just for 220v applications?
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Old 08-30-2011, 09:07 PM   #2
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Default Re: 220v wire colors

i think the red/black romex is a canada thing. in the US you use regular romex and reidentify the white. how do think 12ga is ok when you dont know what the load is?
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Old 08-30-2011, 10:23 PM   #3
rlwhitetr3b
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Default Re: 220v wire colors

[QUOTE=mrb;1716543] reidentify the whiteQUOTE]

Do you mean marking black with either paint or tape?
That is what I remember from the NEC.
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Old 08-30-2011, 10:27 PM   #4
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Default Re: 220v wire colors

[QUOTE=rlwhitetr3b;1716743]
Quote:
Originally Posted by mrb View Post
reidentify the whiteQUOTE]

Do you mean marking black with either paint or tape?
That is what I remember from the NEC.
Yes - I use a Sharpie to color the ends of the white wire on both ends. That's on like a 220 no neutral motor run.
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Old 08-31-2011, 12:20 AM   #5
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Default Re: 220v wire colors

For 220V wire colors, hot is brown & neutral is blue, & it's 50 hertz. If you want color choices for the US market & 240V you can use any color but green, white, gray, or orange , those colors are the only specified colors in the NEC, any other is trade practice for 240V if in conduit trade practice would be black & red, if using a 2 wire NM cable, re-identify the white as black,red, or blue & one is good to go...
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Old 08-31-2011, 01:56 AM   #6
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Default Re: 220v wire colors

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Originally Posted by 1969 View Post
They make romex just for 240V. Red and black conductors.
True,but there is no requirement to use it.
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Old 08-31-2011, 07:14 AM   #7
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Default Re: 220v wire colors

Red shrink tubing.
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Old 08-31-2011, 03:33 PM   #8
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Default Re: 220v wire colors

When I wired my stove, the 12/3 romex that I ran had White, Red, Black, and green.

To The OP - you need ground, neutral, and 2 hots. Standard 12/2 romex is not enough... you need 12/3, which has a total of 4 conductors (they don't count ground).
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Old 08-31-2011, 03:46 PM   #9
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Default Re: 220v wire colors

OP what are we wiring up?
I don't think enough information was given to know if he needs a neutral.
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Old 08-31-2011, 03:46 PM   #10
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Default Re: 220v wire colors

Orange is normally used for 277/480. Never heard you could not use it for anything else?
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Old 08-31-2011, 03:49 PM   #11
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Default Re: 220v wire colors

theres something about orange for high leg. most new 277/480 installs are using yellow purple brown
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Old 08-31-2011, 05:07 PM   #12
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Default Re: 220v wire colors

Quote:
Originally Posted by ranger_dood View Post
To The OP - you need ground, neutral, and 2 hots. Standard 12/2 romex is not enough... you need 12/3, which has a total of 4 conductors (they don't count ground).
Not true ! There are some, admittedly few, applications where a neutral is not required !!

Your stove requires a neutral because it has some items that run on 120v; timer, light, igniter.
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Old 08-31-2011, 05:10 PM   #13
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Default Re: 220v wire colors

what the heck kind of stove is 20 amps 120/240?
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Old 08-31-2011, 06:53 PM   #14
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Default Re: 220v wire colors

Quote:
Originally Posted by jeffmoss26 View Post
Orange is normally used for 277/480. Never heard you could not use it for anything else?
Orange is required for marking the high leg of a 120/240V delta system.
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Old 08-31-2011, 06:54 PM   #15
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Default Re: 220v wire colors

Quote:
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what the heck kind of stove is 20 amps 120/240?
(My thoughts too!)


A really itty-bitty stove?
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Old 08-31-2011, 07:14 PM   #16
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Default Re: 220v wire colors

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Originally Posted by Norcal View Post
For 220V wire colors, hot is brown & neutral is blue, & it's 50 hertz. If you want color choices for the US market & 240V......
Am I the only the one that found that really funny? Good one Norcal.
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Old 08-31-2011, 07:55 PM   #17
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Default Re: 220v wire colors

The load is my Ever Eternal EE6503 car lift. On the plate it says 220V 1 ph 60 hz 2.2kw. That means to me a double breaker, and a 10 amp current, so 12 gage should be ok. The lift itself has three conductors, a white black and a white with green. So, I've got it hooked up with the white and black to hot legs and the white/green to ground on a test basis. Seems to work fine.
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Old 08-31-2011, 08:21 PM   #18
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Default Re: 220v wire colors

Quote:
Originally Posted by gumbudah View Post
The load is my Ever Eternal EE6503 car lift. On the plate it says 220V 1 ph 60 hz 2.2kw. That means to me a double breaker, and a 10 amp current, so 12 gage should be ok. The lift itself has three conductors, a white black and a white with green. So, I've got it hooked up with the white and black to hot legs and the white/green to ground on a test basis. Seems to work fine.
Yep, it should work fine !

However, electricians or inspectors looking in your panel box and seeing a white wire hooked to a breaker will certainly pause.

Red shrink tube or red permanent marker.
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Old 09-01-2011, 07:39 AM   #19
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Default Re: 220v wire colors

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Originally Posted by theoldwizard1 View Post
Yep, it should work fine !

However, electricians or inspectors looking in your panel box and seeing a white wire hooked to a breaker will certainly pause.

Red shrink tube or red permanent marker.
Or most inspectors will accept black tube or black marker. Personally I don't recommend tape, as most of the cheap tape we see today falls off after a few months of sitting. If you use 3M tape (I recommend 88 for marking wires, it is thin and doesn't build up too much) it will last longer.
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Old 09-01-2011, 11:06 AM   #20
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Default Re: 220v wire colors

Quote:
Originally Posted by nehog View Post
(My thoughts too!)


A really itty-bitty stove?
I wonder if the stove in our new camper runs off of 120v?

I know that kind of out of wack from the conversation here, but that is the only kind of stove I can possibly think of that would be a 120v.
Camper's a 30amp hookup by the way.
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