IEEE 118-1978

The methods presented here are limited to those using direct current or commercial power frequencies of 60 Hz or below and to those measurements required to determine the performance characteristics of electric machinery and equipment. Although methods of measuring insulation and ground resistance are given in this code, more complete discussions may be found in [5], [7], [11].

The purpose of this code is to present methods of measuring electrical resistance which are commonly used to determine the characteristics of electric machinery and equipment. The choice of method in any given case depends on the degree of accuracy required and the nature of the circuit to be measured. A guide for selecting the appropriate method is given in Table 1.

Revision Standard - Inactive-Withdrawn. Methods of measuring electrical resistance that are commonly used to determine the characteristics of electric machinery and equipment are presented. The methods are limited to those using direct-current or commercial power frequencies of 60 Hz or below, and to those measurements required to determine performance characteristics. The choice of method in any given case depends on the degree of accuracy required and the nature of the circuit to be measured; a guide for selecting the appropriate method is given.