CSA C22.2 NO. 244-05 (R2015)
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Switchboards (Tri-national standard with UL 891 and NMX-J-118/2-ANCE-2006)
CSA Group , 07/28/2005
Pages: 197
This is the common ANCE, CSA, and UL standard for Switchboards. It is the Second edition of NMX-J-118/2-ANCE, the First edition of C22.2 No. 244, and the Eleventh edition of UL 891.
1.1 Scope and object
1.1.1 This Standard applies to switchboards nominally rated at 600 V or less and intended for use in accordance with the Canadian Electrical Code, Part 1 (CE Code, Part 1), the National Electrical Code (NEC), ANSI/NFPA 70, and the Mexican Standard for Electrical Installations (Utility), NOM-001-SEDE.
1.1.2 In this standard the term switchboard is intended to refer to a dead-front switchboard.
1.1.3 These requirements do not cover the following switchboard types: preset and dimmer control (theater), live front, railway control or electrification; or constructions intended only for receiving motor control center units.
1.1.4 These requirements cover switchboards for use on circuits having available rms symmetrical short-circuit currents of not more than 200 000 A.
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