Chapter 11

Insulators and Accessories

11.1 Electrical Stresses on External Insulation 11-1

Transmission Lines and Substations • Electrical Stresses • Environmental Stresses • Mechanical Stresses

11.2 Ceramic (Porcelain and Glass) Insulators 11-8

Materials • Insulator Strings • Post-Type Insulators • Long Rod Insulators

11.3 Nonceramic (Composite) Insulators 11-11

Composite Suspension Insulators • Composite Post Insulators

11.4 Insulator Failure Mechanism 11-15

Porcelain Insulators • Insulator Pollution • Effects of Pollution • Composite Insulators • Aging of Composite Insulators

11.5 Methods for Improving Insulator Performance 11-20

11.6 Accessories 11-21

References 11-24

George G. Karady

Arizona State University

Richard G. Farmer

Arizona State ...

Get Electric Power Generation, Transmission, and Distribution, 3rd Edition now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.