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About This Item


Full Description

This is the second edition of CAN/CSA-C156.1, Ceramic and glass station post insulators.

1.1 This Standard specifies the electrical, mechanical, dimensional characteristics, test methods, and acceptance criteria for solid-core and cavity core ceramic and glass type station post insulators for outdoor service in electrical installations or equipment operating with a rated voltage greater than 1000 V and a rated frequency not greater than 100 Hz.

Note: Hollow core insulators are not part of this Standard.

1.2 This Standard covers insulators intended primarily for use as support or operating elements in switching equipment, or as bus bar or other equipment supports in station. Note: The electrical and mechanical characteristics for direct current insulators are similar to the comparable characteristics for alternating current insulators. However, due to the unidirectional voltage stress, special attention needs to be paid to the pollution susceptibility and to the location of insulators in a direct current scheme.

Document History

  1. CAN/CSA C156.1-18


    Ceramic and Glass Station Post Insulators

    • Most Recent
  2. CAN/CSA C156.1-M86 (R2018)

    Ceramic and Glass Station Post Insulators

    • Historical Version