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1. Scope 1.1 This Standard describes the investigations required to obtain the seismological and geological information necessary to determine, for a proposed CANDU nuclear power plant site, the seismic ground motion that will be utilized in seismic qu

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1. Scope 1.1 This Standard is intended for the performance rating of factory-assembled unitary heat pumps, that are intended for use in direct-expansion (DX) ground-source heat pump systems. 1.2 Within the scope of the Standard, DX heat pumps are cl

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Preface This is the harmonized ANCE, CSA, and UL Standard for ground-fault circuit-interrupters. It is the first edition of NMX-J-520-ANCE-2006, the first edition of CSA C22.2 No. 144.1, and the fourth edition of UL 943. This edition of CSA C22.2 No. 144.

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CAN/CSA-C22.2 NO. 144-M91 (R2001) Ground Fault Circuit Interrupters 现行 发布日期 :  1970-01-01 实施日期 : 

This PDF includes Updates No. 2 and No. 3 1. Scope 1.1 This Standard applies to ground fault circuit interrupters (GFCIs) intended for installation in non-hazardous locations at nominal system voltages of 600 V and less, in accordance with CSA Stan

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