Transcription of SPECIFICATION FOR LOW-VOLTAGE SWITCHGEAR …
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SPECIFICATION FOR LOW-VOLTAGE SWITCHGEAR …
YTT 1 ZTSW?-tf~S 387 3 TifVT Z'rSJq 'Fi?fWfT FQ=Ts f s;^f 3 ThT+ ( VpTT g;r*as ) Indian Standard SPECIFICATION FOR LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES ), AND PARTIALLY PART 1 REQUIREMENTS FOR TYPE-TESTEO TYPE-TESTED ASSEMBLIES June 1993 ( First Revision ) Third Reprint APRIL 1999 UDC @ BIS 1993 BUREAU OF INDIAN standards MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG NEW DELHI 110002 Price Group 15 IS 8623 ( Yart 1) : 1993 IEC Pub 439-l ( 1985 ) Indian Standard SPECIFICATION FOR LOW-VOLTAGE AND CONTROLGEAR ASSEMBLIES PART 1 REQUIREMENTS FOR TYPE-TESTED AND PARTIALLY TYPE-TESTED ASSEMBLIES ( First Revision ) NATIONAL FOREWORD This Indian Standard ( Part 1 ) is identical to JEC Pub 439-l ( 1985 ) covering requirements for assemblies of LOW-VOLTAGE SWITCHGEAR and controlgear equipment. The term factory built assem- blies has been now abandoned internationally taking into account the installation engineering practice of using non-factory built assemblies ( such as site built ).
IS 8623 (Partl) : 1993 IEC Pib,439 - l(l985) 1. General 1.1 Scope This standard applies to low-voltage switchgear and controlgear assemblies (Type-tested Assem-
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