Abstract:
A lightning arrester having voltage-grading resistors that generate heat due to leakage currents therethrough, in combination with heat exchanger means adapted to cool the grading resistors and other internal components. In one form of the invention the grading resistors are biased into contact with the interior wall of the insulating housing of the lightning arrester by resilient spring means to assure optimum thermal conduction between the resistors and the housing.
Abstract:
A high voltage lightning arrester having a vertical height in excess of 20 feet is provided with a discharge surge counting device mounted adjacent its uppermost terminal by insulating members that are so arranged as to prevent them from being subjected to stresses that could break or damage them when the lightning arrester is subjected to horizontal torque-producing forces by high velocity winds.