15kV Unshielded Cable Separation
15kV Unshielded Cable Separation
(OP)
Does anyone have a reference (IEEE, ANSI, etc) for conductor air separation and creepage distances for unshielded 15kV cable, as installed as jumpers in a switch or transformer?
I found a listing of 4.5" separation and 7" creepage between cables, and between cables and grounded parts, but no actual reference of where this data came from.
Thanks.
I found a listing of 4.5" separation and 7" creepage between cables, and between cables and grounded parts, but no actual reference of where this data came from.
Thanks.






RE: 15kV Unshielded Cable Separation
RE: 15kV Unshielded Cable Separation
RE: 15kV Unshielded Cable Separation
Be very careful of using any glastic/ fiberglass supports for unshielded cables as the supports need to be sealed on any cut ends to prevent the absorbtion of moisture. Also, make sure the space heaters work in the cubicle for these types of installations (keeping things dry help reduce the chance of failure). We recently had a phase to phase cable fault on a glastic/ fiberglass support because the support had absorbed moisture allowing the unshielded cables laying on the support to conduct to each other and then to ground.
I know this is was bit off subject, but, this was the first thing I thought of when I read the title of this thread. I just hate to see the same mistake made twice.
RE: 15kV Unshielded Cable Separation
See the enclose publication and articles related with this topic.
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RE: 15kV Unshielded Cable Separation
RE: 15kV Unshielded Cable Separation