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Red wire vs black

PoorOwner

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Feb 10, 2007
Messages
5,032
Location
CA
Just wanted to confirm I can use 2 red wires as the hots in a 4 wire feeder run?
As opposed to black?

The roll of red price is a bit less but they are the exact same specs.
 
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Bert_

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Dec 24, 2016
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NW Iowa
You can use pink or purple or brown, any color is free game as long as it isn't green white or gray.

There are only a few cases where the code specifies a color for a hot wire, this isn't one of them.
 

Norcal

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Mar 16, 2008
Messages
13,751
You can use pink or purple or brown, any color is free game as long as it isn't green white or gray.

There are only a few cases where the code specifies a color for a hot wire, this isn't one of them.

There is only one, orange for the high leg of 240V delta, unless you count local rules like San Francisco specifying purple instead of orange for one the phases w/ 480V, instead of BOY, brown, orange, yellow, it's brown, purple, yellow.
 
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dscheidt

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There is only one, orange for the high leg of 240V delta, unless you count local rules like San Francisco specifying purple instead of orange for one the phases w/ 480V, instead of BOY, brown, orange, yellow, it's brown, purple, yellow.

The connecting wire for heating cables has a color code to identify the supply voltage the heating cable is supposed to be attached to.

SF uses purple because someone was worried that orange and yellow look much alike under poor lighting.
 

Lassen Forge

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The romantic hills of central Umbria, Italy,
The purple is a marker that you're dealing with 480. That's why they use it - enough people have either been pitched across an open space or sucked into the circuit that they wanted some way to tell people working on it it wasn't 277 or 240 or whatever.

I watched one guy thrown across a grass lot in a county fairgrounds when the 480 circuit he was working on was energized by a ***** thinking he was energizing a local 120 circuit to brew coffee... literally picked up this 300 lb brick of a guy and he landed 75+ yards away. and he was damned lucky he caught the right phase - he could have just as easily been contracted into it. Another acquaintance (RIP) saw someone hooked and contracted into 480 and went to body block him off the wire, and got himself killed when he got contracted into it when he hit the guy.

There's something weird about 480... and thats why some cities (not just SF) has that off-color marker for it.
 

wyliesdiesels

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Messages
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Location
Modesto, CA
Sadly, many dont follow lock-out, tag-out rules.

If i ever catch someone not following them under my watch, their *** is gone...
 

FreddiFiche

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Aug 8, 2011
Messages
126
Location
Minnesnowta
Sadly, many dont follow lock-out, tag-out rules.

If i ever catch someone not following them under my watch, their *** is gone...

And then they can hate you for the rest of their life, thanks to you caring for their LIFE. I've got two guys that hate me. I'll live with it. :)
 

Dragfluid

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Joined
Sep 15, 2013
Messages
17,463
Location
Pillager, MN
The purple is a marker that you're dealing with 480. That's why they use it - enough people have either been pitched across an open space or sucked into the circuit that they wanted some way to tell people working on it it wasn't 277 or 240 or whatever.

I watched one guy thrown across a grass lot in a county fairgrounds when the 480 circuit he was working on was energized by a ***** thinking he was energizing a local 120 circuit to brew coffee... literally picked up this 300 lb brick of a guy and he landed 75+ yards away. and he was damned lucky he caught the right phase - he could have just as easily been contracted into it. Another acquaintance (RIP) saw someone hooked and contracted into 480 and went to body block him off the wire, and got himself killed when he got contracted into it when he hit the guy.

There's something weird about 480... and thats why some cities (not just SF) has that off-color marker for it.

Could you please 'splain why one phase will repel you and other will draw you in?
 

wyliesdiesels

Well-known member
Joined
Aug 14, 2012
Messages
19,983
Location
Modesto, CA
There is only one, orange for the high leg of 240V delta, unless you count local rules like San Francisco specifying purple instead of orange for one the phases w/ 480V, instead of BOY, brown, orange, yellow, it's brown, purple, yellow.

Seriously? WTF?

i was wondering the same.....:supergay: ???

The connecting wire for heating cables has a color code to identify the supply voltage the heating cable is supposed to be attached to.

SF uses purple because someone was worried that orange and yellow look much alike under poor lighting.

The purple is a marker that you're dealing with 480. That's why they use it - enough people have either been pitched across an open space or sucked into the circuit that they wanted some way to tell people working on it it wasn't 277 or 240 or whatever.

I watched one guy thrown across a grass lot in a county fairgrounds when the 480 circuit he was working on was energized by a ***** thinking he was energizing a local 120 circuit to brew coffee... literally picked up this 300 lb brick of a guy and he landed 75+ yards away. and he was damned lucky he caught the right phase - he could have just as easily been contracted into it. Another acquaintance (RIP) saw someone hooked and contracted into 480 and went to body block him off the wire, and got himself killed when he got contracted into it when he hit the guy.

There's something weird about 480... and thats why some cities (not just SF) has that off-color marker for it.

Heres written amended rules calling out for purple phase tape on high leg 240v delta...

Looks like 480v is still BOY color code...

https://sfdbi.org/sites/default/files/BIC Meeting 08-17-16 #7d.pdf
 
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