Why a low resistance to remote earth is desirable and how to obtain it

摘要

A low-resistance facility ground connection helps provide effective protection of personnel, equipment, and services against hazardous voltages and currents from lightning, power contacts, and earth potentials, when used in a conscientiously applied program of electrical protection measures and regular maintenance. This paper shows several reasons why this is so and discusses the use of conductive cement to lower the resistance of traditional electrodes.