Originally posted by sparky66wv:
In fairness to my intelligence, I would like to point out that these fiberglass rods are white/grey [b]NOT bright orange or yellow. If they had been orange or yellow, it would have been obvious.
I have heard of corner grounded delta, and was wondering if one could inadvertently ground any leg without things blowing up...
2400/4160? I believe it's 7200/4160, but I could be in err.
[This message has been edited by sparky66wv (edited 07-21-2001).][/B]
Sparky,
Yes they are sky grey when new but then after the sun gets to them for a few years they turn white and get very splintery.(hate that glass)
Yea 2400/4160. That is one of our secondary voltages in mostly older areas of town that feed some water/sewer plants and some factories. It can be either WYE or Delta. If its wired WYE then the cust gets 4 wire 4160Y/2400. If delta he gets 3 wire 2400.
As far as grounding a phase 3Ø 3 wire svc, yes you can. You are allowed ONE ground. But a word of caution is that you had better be dang sure that it is not already grounded by some means and you try and ground ANOTHER phase
![[Linked Image]](https://www.electrical-contractor.net/ubb/eek.gif)
. When we phase two 3 wire 480 svc's together then the only way is to place a temp jumper between the two svc's before phasing can be attempted. The reason for the jumper is because the two services do not have ANYTHING in common that ties them together. There is no neutral or a common tie. Was pretty scary the first time I ever phased 480. Was kinda leary about placing a jumper between two phases of 480
[This message has been edited by glenn35 (edited 07-23-2001).]
