This is the seventh edition of CSA C22.2 No. 56, Flexible metal conduit and association liquid-tight flexible metal conduit, one of a series of Standards issued by CSA Group under the Canadian Electrical Code, Part II. It supersedes the previous editions published in 2013, 2004, 1977, 1961, 1954, and 1938.
This Standard applies to flexible metal conduit and liquid-tight flexible metal conduit, trade sizes 12 (3/8) to 103 (4), excluding 14 (7/16), intended for use as a metal raceway for the installation of conductors in accordance with the Canadian Electrical Code, Part I. In addition, this Standard applies to special purpose flexible metal conduit, trade sizes 10 (5/16) and 14 (7/16), intended for other applications requiring the conductors to be enclosed in a flexible metal raceway.
Liquid-tight flexible metal conduit covered by this Standard is provided with an overall thermoplastic jacket that is recognized for use at a maximum temperature of 60 °C, 75 °C, or 105 °C.
Note: For conduit sizes in this Standard, the metric trade designator is given first, with the trade size in inches following in parentheses.
The values given in SI (metric) units are the standard. The values given in parentheses are for information only.
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.
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C22.2 NO. 56-13 - Flexible metal conduit and liquid-tight flexible metal conduit
C22.2 NO. 56-04 (R2009) - Flexible Metal Conduit and Liquid-Tight Flexible Metal Conduit
Flexible Metal Conduit and Liquid-Tight Flexible Metal Conduit