Transcription of TECHNICALTOPIC Supplying adetac - napitonline.com
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TECHNICALTOPIC Supplying adetac - napitonline.com
8 NAPI T087 044 41392 ww concernsra ised onthe NAPITH elplineThe supplyof electricityfro m a main buildingtodetac hed outb uildin gs, such as garages or she ds,con tinu es to co nce rn so me callersto the NAPITtec hnic al helplin e. Ther e are severalscenarios: th e supplyin th e main bu ilding is TN-S or TN-C-San d th ere are no extran eou s-c ondu ctive-partsinth e detach ed out bu ilding th e supplyin th e main bu ilding is TN-S and thereare ex tran eo us- co ndu ct ive-par ts in th e det achedoutbu ilding th e supplyin th e main bu ilding is TN-C-Sandth er e are extran eou s- con ductive-partsin thedet ac hed ou tb th is art icle, I ll con sider the first sit uation andassu me that the exist ing buildin g are domesticprem ises with a TN- S or a TN-C -S ll furtherassu me that the garagehas no extran eous-con duc tive -par ts ( no wate r su pply).
8NAPIT 08704441392www.napit.org.uk Bill Allan responds toconcerns raisedon theNAPIT Helpline Thesupplyofelectricityfromamainbuildingto detachedoutbuildings ...
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