sub station feeders weeping
sub station feeders weeping
(OP)
I have inherited two older substations with woven insulation on the 13,500V feeders. The wires are weeping some kind of fluids. The most common is brownish with a high viscosity. The other fluid is green and looks like water and copper corrosion to me. Do you have any idea what the brown fluid is and is it something I need to worry about?
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http://w ww.geociti es.com/v6r acer.geo/p ictures/IM G_2377.JPG
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RE: sub station feeders weeping
RE: sub station feeders weeping
You should also be aware that some of this 'green goo' has been identified as a potential PCB hazard.
RE: sub station feeders weeping
The cable inner filling and the jacket is PVC made and insulation is XLPE [crosslink polyethylene].If the PVC is overheated the melted material may dip down.
You may check the contact between conductor and the lug. If the temperature is low or moderate and if you don't intend to lay another cable instead of the old I think this arrangement will remain in operation for another long time.
RE: sub station feeders weeping
I'm thinking the green fluid indicates corrosion and a possible failure point. I'm not sure of what to make of the brown fluid. The link below shows a picture of the cables that were replaced in 2003. The cables from the feeder that failed are heavily soaked in the brownish fluid and the insulation on the cables from the feeder you seen pictures of are mostly dry.
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RE: sub station feeders weeping
RE: sub station feeders weeping
See Brianb2's response.
RE: sub station feeders weeping