IEEE 1247 : 2005

Table of Contents

1 Overview
  1.1 Scope
  1.2 Purpose
2 Normative references
3 Definitions
4 Service conditions
  4.1 Usual service conditions
  4.2 Unusual service conditions
5 Description of ratings and capabilities
  5.1 Rated power frequency
  5.2 Rated voltage
  5.3 Rated withstand voltages
  5.4 Rated currents
  5.5 Rated ice breaking ability
  5.6 Rated control voltage
  5.7 Rated mechanical operations
  5.8 Rated mechanical terminal load
  5.9 Visible corona-free voltage
  5.10 Radio-influence voltage limit
  5.11 Partial discharge limits
6 Preferred ratings
  6.1 Preferred ratings - Outdoor switches
  6.2 Preferred ratings - Indoor switches
  6.3 Preferred ratings - Enclosed switches
  6.4 Other preferred ratings
7 Construction requirements
  7.1 Nameplates
  7.2 Contact position indicator
  7.3 Accessories
  7.4 Instructions
  7.5 Terminal pads
8 Test code
  8.1 Withstand voltage tests
  8.2 Continuous current tests
  8.3 Switching tests
  8.4 Short-time withstand current tests
  8.5 Fault-making current test
  8.6 Condition of the switch after each test of 8.3, 8.4, and 8.5
  8.7 Ice loading test
  8.8 Mechanical operation tests
  8.9 Corona tests
  8.10 Radio-influence tests
  8.11 Partial discharge test
  8.12 Production tests
Annex A (informative) Altitude correction factors
Annex B (informative) Load-switching TRV
Annex C (informative) Restrike-free performance
Annex D (informative) Capacitive current switching
Annex E (informative) Bibliography

Abstract

Pertains to switching devices, interrupters, and interrupter switches for alternating current, rated above 1000 V and used indoors, outdoors, or in enclosures for which a switching rating is to be assigned.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Institute of Electrical & Electronics Engineers
Pages
ISBN
Supersedes	IEEE DRAFT 1247 : D5 2004