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CSA C22.2 NO 47

5th Edition, September 1, 2013

Complete Document

Air-cooled transformers (dry type)



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Product Details:

  • Revision: 5th Edition, September 1, 2013
  • Published Date: September 2013
  • Status: Active, Most Current
  • Document Language: English
  • Published By: CSA Group (CSA)
  • Page Count: 33
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

This Standard applies to single-phase and polyphase transformers of the dry type for supplying energy to power, heating, and lighting circuits and designed to be installed and used in accordance with the Canadian Electrical Code, Part I.

This Standard applies to multiwinding and autotransformers rated 72.5 kV class and less.

This Standard applies to transformers for use in nonhazardous indoor and outdoor locations.

This Standard does not apply to specialty transformers, transformers for luminous-tube signs, oil or gas burner ignition, cold-cathode interior lighting, or electronic or liquid-filled designs

This Standard does not include energy efficiency or product performance requirements. For such requirements, see CAN/CSA-C802.2 or CSA C9 where applicable.

General requirements applicable to this Standard are provided in CAN/CSA-C22.2 No. 0.

In this Standard, "shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; "should" is used to express a recommendation or that which is advised but not required; and "may" is used to express an option or that which is permissible within the limits of the standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.
CSA B51