Transformer incomer Pothead
Transformer incomer Pothead
(OP)
We have a 13.8kV/4160V, 20MVA transformer. Incomer is connected to transformer through a pothead (a HV side cable junction box). Incoming cable is 400mm2 (PILC). Inside the box, the cable is insulated with Raychem 15KV rated heat shrink sleeves. My question is that after having heat shrink sleeves, do we need to fill the box with a filler compound (e.g. Novoid X)?






RE: Transformer incomer Pothead
Regards
Marmite
RE: Transformer incomer Pothead
Moreover, at what clearance level (P-P) or (P-E), we would need an additional filler (like Novoid X)?