Patent ID: 7176694
Filing Date: 2007-02-13
Classification: G01R

Abstract:
1. A testing device to detect defects in insulated elongate rod-like handles for carrying tools on one end thereof for use in the servicing and maintenance of high voltage transmission lines, comprising, in combination; a) a first and second electrode, each comprising a substantially ring-shaped configuration, said electrodes being supported on a base in a predetermined laterally spaced relationship from one another and each including a central opening aligned with the central opening of the other electrode to receive the rod-like insulated handle under test; b) means to operatively connect the first electrode to a source of high voltage and means to connect the second electrode to ground; and c) the spaced relationship between said electrodes and the applied voltage to said first electrode being selected to achieve at least 1.5 times the electrical field intensity of the electrical transmission line upon which the rod-like insulated handle is rated safe to use without causing an electrical arc between said electrodes when ambient air is the only conductor between the electrodes.