Table of Contents

1. Overview
   1.1 Scope
   1.2 Purpose
   1.3 Applications
2. Normative references
3. Definitions
4. Principles of insulation coordination
   4.1 General outline of the insulation coordination
       procedure
   4.2 Determination of the system voltage stress
   4.3 Comparison of overvoltages with insulation strength
   4.4 Selection of standard insulation levels
   4.5 Low-frequency, short-duration withstand voltages
   4.6 Standard BIL and BSL
   4.7 Classes of maximum system voltage
   4.8 Selection of the equipment standard insulation level
Annex A (informative) - Bibliography

Abstract

Covers three-phase alternating current (ac) systems above 15 kV. Defines the procedure for selection of withstand voltages [basic lightning impulse insulation level (BIL) and basic switching impulse insulation level (BSL)] for equipment phase-to-ground and phase-to-phase insulation systems.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Institute of Electrical & Electronics Engineers
Pages
ISBN
Supersedes	IEEE 1313.1 : 1996