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#9753 - 05/11/02 08:52 PM transformer leads of different voltage ratings mixing
Elzappr Offline
Member
Registered: 12/20/01
Posts: 273
Loc: Oregon
What's the "fix" for a situation where there are cables in a vault that operate in different voltage ranges--like for transformer line/load conductors, one set over 600V and the load side under 600V. In this scenario, the cables are coming into the vault in such a way that there is no way to place a rigid physical barrier between the conductors. Is it practicable to wrap the 600V conductors with high voltage insulation?
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#9754 - 05/11/02 09:27 PM Re: transformer leads of different voltage ratings mixing
Bjarney Offline
Moderator
Registered: 04/10/02
Posts: 2561
Loc: West-Southern Inner-Northeast ...
There is Raychem BBIT but it will cost you plenty. I'd be sure your inspector will buy in to it first.
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#9755 - 05/12/02 04:57 PM Re: transformer leads of different voltage ratings mixing
Elzappr Offline
Member
Registered: 12/20/01
Posts: 273
Loc: Oregon
I don't know what the Raychem product is that you mentioned. This transformer vault situation is something that someone else had run into recently, I haven't seen the installation myself. My understanding is that you can have shielded URD racked within 6" of the 600V wire, but if it is un-shielded you can't have it in the same enclosure.

[This message has been edited by Elzappr (edited 05-12-2002).]
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