Cap and Pin, or other special insulators, are available when specified. The GCH is furnished with structural steel channel bases, drilled to the customer specifications, and hot-dip galvanized after fabrication. Single channel bases are supplied for switches 7.5 Kv through 69 Kv, double channel bases for 69H Kv through 345 Kv. Switches are furnished less terminal connectors. Customer should specify tinned terminal pads on copper switches when aluminum connectors are to be used.
Insulators are free to rotate without affecting position of the terminal pads or the conductor.
Each switch is furnished with complete operating control consisting of necessary pipe, intermediate guides, outboard bearing, and all interphase connections. Controls are custom designed to customer specifications. The GCH is furnished with a swing handle operator throughout the voltage range. Gear operators are frequently used with the GCH to control speed of opening and closing the switch. Motor operators available when specified.