Delta corner ground 240v system

[RRJ]

What is the common colors to use on a corner ground system 240 volt 3 phase?

White, red, blue? White, black, red?
Black, white, blue? Black,red,white?

 

[LarryFine]

White and any other two colors, excluding green and gray, of course.

Black and red are probably what would be chosen first, though.

 

[ptonsparky]

White for the grounded. Your choice on the rest. whatever is on the truck.

 

[hillbilly1]

White and any other two colors, excluding green and gray, of course.

Black and red are probably what would be chosen first, though.

Grey can be used, doesn’t have to be white with black and red.

 

[ptonsparky]

Be consistent throughout.

 

[kwired]

If it is the only voltage system on the premises you need white or gray for the grounded conductor and there is no requirements for the ungrounded conductors. Can both be same if you wish. If you want to keep track which is which then use any two colors of your choosing other than white, gray and green.

 

[jaggedben]

Just a suggestion (not required), but I'd use an unusual combination that will stop an experienced electrician from making any assumption. Like, if you use white, black and red someone will assume it's 120/240 split phase. And if you use white, red and blue someone may assume they've got two legs and the neutral of a 208 wye. But say you use white, red and yellow, the smart guys will wonder what the heck it is and measure the voltage first.