... 10 meters. Winding angle can be controlled between 30° and 90°. We can offer SF6 resistant treatment ... tubes for hollow insulators, surge arresters, HV swithes, current transformers and power transformers Features: Fiberglass Winding Tube ... in National Labs3.Application: Power Transformer,Current Transformer,Hollow Insulators, Bushing, Surge Arrester, High-voltage Current Limiting Fuse, On-load tap ...