IEEE 987 : 2001

Table of Contents

1 Overview
   1.1 Scope
2 References
3 Definitions
   3.1 Structural terms
   3.2 Electrical terms
4 Service experience of composite insulators
   4.1 Service experience with alternating current (ac)
       systems
   4.2 Service experience with direct current (dc)
       systems
5 Polymer aging and long-term endurance of high-voltage
   (HV) composite insulators
   5.1 Mechanical aging
   5.2 Electrical aging
   5.3 Insulator design and aging
   5.4 Aging tests
6 Mechanical considerations for suspension insulators
   6.1 Tension ratings
   6.2 Compression loads
   6.3 Bending
   6.4 Torsion
   6.5 Combined loads
7 Mechanical considerations for line post insulators
   7.1 Mechanical rating criterion
   7.2 Tension loads
   7.3 Compression loads
   7.4 Torsion loads
   7.5 Combined loads
8 Interchangeability of insulators
   8.1 Suspension insulators
   8.2 Post insulators
9 Grading devices
   9.1 Suspension insulators
   9.2 Dead-end insulators
   9.3 Phase-to-Phase insulators
   9.4 Post insulators
10 Maintenance
   10.1 Insulator cleaning
   10.2 Greasing
   10.3 Damaged insulators
11 General
   11.1 Contamination
   11.2 Leakage distance requirements
   11.3 Icing
   11.4 Temperature limits
   11.5 Chemical environment
   11.6 Power arc damage
12 Handling
   12.1 Packaging
   12.2 Removal from packing
   12.3 Handling, transportation, and installation
Annex A (informative) Bibliography

Abstract

Describes composite insulators to overhead transmission and distribution lines. It deals with composite insulators, which include a core, weathersheds, and metal end fittings. The core consists of resin and glass fibers. The weathersheds are of polymeric materials.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Institute of Electrical & Electronics Engineers
Pages
ISBN