Standard icon


C12.9-1987 - American National Standard for Test Switches for Transformer-Rated Meters

Description: The general requirements and pertinent dimensions applicable to watthour meter sockets rated up to and including 600 V, and up to and including 320 A continuous duty per socket opening, are covered. Electrical ratings, performance requirements, and construction requirements are specified.
  • Status: Superseded Standard Help

Get This Standard

Access with Subscription External Link Standards Online subscribers can access this standard in IEEE Xplore Digital Library. Access Learn More