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Good PLUMBING ABBREVIATIONS PLUMBING LEGEND AND SYMBOLS P Amp Id Line Symbols p amp id line symbols p l u m b in g p 0010 0 7 2 8 1 1 m b e t z l c a r c p 0 0 1 0 d g n symbol abbreviation description symbol abbreviation description anchor water hammer arrester fluid flow direction wha gas cock hwr domestic hot water return line hw domestic hot water supply cw domestic cold water supply plumbing abbreviations plumbing legend and symbols p amp id line symbols American National Standard This foreword is not a part of American National Standard Graphic Symbols for Electrical and Electronics Diagrams Y32 2 1975 IEEE Std 315 1975 This American National Standard is a revision and expansion of American National Standard Graphic Symbols for Electrical and Electronics Diagrams Y32 2 1970 IEEE Std 315 1971 PLUMBING ABBREVIATIONS PLUMBING LEGEND AND SYMBOLS p l u m b in g p 0010 0 7 2 8 1 1 m b e t z l c a r c p 0 0 1 0 d g n symbol abbreviation description symbol abbreviation description anchor water hammer arrester fluid flow direction wha gas cock hwr domestic hot water return line hw domestic hot water supply cw domestic cold water supply plumbing abbreviations plumbing legend and symbols Electrical Design Standard Symbols id no issue 1 sheet 2 of 40 doc no bn ds e2 document numbers index symbols page 501 502 key diagrams m v and l v one line diagrams 4 16 503 control and wiring diagrams 17 28 506 communication systems 29 510 power lay outs 30 38 520 lighting lay outs 30 38 530 earthing lay outs 30 38 550 cathodic protection 30 38 Commonly Used Electrical Symbols Newark element14 Commonly Used Electrical Symbols Technical Data Effective April 2005 New Information A one line diagram is an important means of communicating the components electrical relationships and connections within a circuit or system Components are normally represented by universally accepted symbols TABLE 1 INDIVIDUAL SYMBOLS

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