Standard Basic Impulse Insulation Levels

This report of the joint committee* on co-ordination of insulation of AIEE, Edison Electric Institute, and National Electrical Manufacturers Association is the culmination of more than ten years' study to establish basic insulation co-ordination. It specifies basic impulse insulation levels in terms of a withstand voltage for a specified test wave. These values are to be the bases for various AIEE and other standards now in course of development or revision.