US 4,941,834 A · Universal high voltage ground stud insulating system

Abstract

An easily removable high voltage ground stud insulating system allows ready access to the ground stud bolt having one end directly attached to a switchgear terminal bus, with the other end adapted to receive a temporary ground connector. A two-part insulative enclosure consisting of a first thermoplastic insulative cylinder is arranged over that part of the ground stud that is adapted for connection with the ground connector while a second insulative cylinder is arranged over the other end. The insulating properties of the thermoplastic material virtually eliminate arcing between the ground stud and the surrounding atmosphere when the switchgear is energized with high voltage. The insulating system is adapted for connection with the ground stud by means of a pair of threaded washers that serve to attach the insulative cylinders on both sides of the ground connector.

Claims9

Dependent claims

A universal ground stud insulating system comprising in combination:

a first insulative cylinder having a first hollow channel at least part way along an interior of said first cylinder, said first channel terminating at one end having first internal threads formed therein;
a second insulative cylinder having a second hollow channel at least part way along an interior of said second cylinder, said second channel terminating at one end having second internal threads formed therein;
a first washer having threads formed on an exterior surface thereof and arranged for engaging said first cylinder threads;
and
a second washer having threads formed on an exterior surface thereof and arranged for engaging said second cylinder threads.

2 more elements

Dependencies are inferred from the claim text.

Universal high voltage ground stud insulating system

Life of this patent

Universal high voltage ground stud insulating system

Life of this patent

Abstract

Claims9