[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-663423-105":59,"doc-detail-663423-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","electrical-single-line-drawing-guide-overview","Electrical Single Line Drawing - Guide - Overview","","Electrical Single Line Drawing (One-Line Drawing) guidance explains how to represent an electric power system using a symbolic single-line format. It outlines why BC Hydro designers must review the full electrical layout during design to avoid mistakes in equipment sequence and placement. It specifies required content such as metering locations, protection devices, conductor sizes, relay and fuse data, service voltage/amperage, load details and calculations, and optional electrical room or site layout information.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":30,"@type":76,"position":81},"https://docshare.wps.com/document/technology/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/electrical-single-line-drawing-guide-overview/663423/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/electrical-single-line-drawing-guide-overview/663423.png","ImageObject",300,407,{"name":92,"@type":93},"Marglet","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-10-28",true,{"@type":102,"interactionType":103,"userInteractionCount":14},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is an Electrical Single Line Drawing (One-Line Drawing)?","Question",{"text":112,"@type":113},"It is a symbolic representation of an electric power system using a single-line format.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"Why does BC Hydro need designers to review the electrical layout during the design phase?",{"text":117,"@type":113},"To spot common mistakes in the sequence and placement of equipment and ensure installation requirements are followed.",{"name":119,"@type":110,"acceptedAnswer":120},"What information must the electrical single line drawing include?",{"text":121,"@type":113},"It should show proposed metering locations, overcurrent protection devices, transformation configuration, incoming service voltage and amperage, conductor sizes and ratings, relay and fuse protection, generator and standby power connections, and motor loads with HP ratings, plus load types and calculations for sizing the main service.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},663423,1793227682,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":14,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":81,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":129,"read_time":39},2336477982702,"https://ap-avatar.wpscdn.com/davatar_9964176cb1d06d4a9deccf72a44ae3dc","ELECTRICAL SINGLE LINE DRAWING  \nElectrical Single Line Drawing  \nWhat is an Electrical Single Line Drawing?  \nAn Electrical Single Line Drawing, or One-Line Drawing, is a symbolic representation of an electric power system.  \nWhy do we need it?  \nThe setup of servicing and metering infrastructure on your site must follow specific installation requirements. During the design phase, your BC Hydro designer needs to review the full electrical layout to spot common mistakes in the sequence and placement of equipment. This  \nFILE FORMAT  \nAutoCAD (.dwg) in metric, with all drawings bound-no xrefs  \nAdobe PDF (.pdf)  \ndrawing is typically used together with civil and electrical room drawings to provide a complete picture of your site’s needs.  \nWhat does it need to show?  \n\n| What we need to see | How much detail is required? | Why do we need to see it? |\n| --- | --- | --- |\n| Configuration and Components | o All proposed metering locations.\u003Cbr>o Overcurrent protection devices.\u003Cbr>o Transformation including configuration.\u003Cbr>o Incoming service voltage and amperage.\u003Cbr>o Conductor sizes and ratings.\u003Cbr>o Relay and fuse protection information.\u003Cbr>o Generators and standby power connections.\u003Cbr>o Any motor loads shown with HP ratings.\u003Cbr>o Refer to the Primary Guide for additional information for primary services. | o To ensure the configuration of the electrical equipment is acceptable to BC Hydro and to enable BC Hydro to determine if any special requirements may be required. |\n| Load Details / Calculations | o Load types and calculations for sizing the main service.\u003Cbr>o Large loads such as motors and electric vehicle chargers. | o To design our power system to ensure all the electrical demands of your development can be met. |\n| Electrical Room Layout (if included) | o See Electrical Room Layout Information package for more detail. | o See Electrical Room Layout Information package for more detail. |\n| Electrical Site Layout and Profile (if included) | o See Electrical Site Layout and Profile Drawing Information Package for more detail. | o See Electrical Site Layout and Profile Drawing Information Package for more detail. |\n\nFor more detailed information, please refer to our Distribution Technical Standards and Guides on [bchydro.com](bchydro.com)  \nELECTRICAL SINGLE LINE DRAWING EXAMPLE - COMPLEX  \nExample of Required Information  \nThe material and information shown in this document are intended for informational purposes only, and we’ll be updating it from time to time. It has been created to emphasize common requirements, errors and omissions that can cause delays in the design process and may not reflect current industry and professional standards or requirements. It is not a substitute for legal, engineering or professional advice.  \nELECTRICAL SINGLE LINE DRAWING EXAMPLE – MULTIPLEX  \nIncoming BC Hydro Service  \nProposed Amperage and Voltage  \nMeter Locations  \n Example of Required Information  \nThe material and information shown in this document are intended for informational purposes only, and we’ll be updating it from time to time. It has been created to emphasize common requirements, errors and omissions that can cause delays in the design process and may not reflect current industry and professional standards or requirements. It is not a substitute for legal, engineering or professional advice.","cbCaiaZka4AnlCTq","https://ap.wps.com/l/cbCaiaZka4AnlCTq","pdf",298954,"English","# What is an Electrical Single Line Drawing?\n# Why do we need it?\n# File format\n# What does it need to show?\n## Configuration and Components\n## Load Details / Calculations\n## Electrical Room Layout (if included)\n## Electrical Site Layout and Profile (if included)\n# Electrical Single Line Drawing example - complex\n# Electrical Single Line Drawing example - multiplex","[{\"question\":\"What is an Electrical Single Line Drawing (One-Line Drawing)?\",\"answer\":\"It is a symbolic representation of an electric power system using a single-line format.\"},{\"question\":\"Why does BC Hydro need designers to review the electrical layout during the design phase?\",\"answer\":\"To spot common mistakes in the sequence and placement of equipment and ensure installation requirements are followed.\"},{\"question\":\"What information must the electrical single line drawing include?\",\"answer\":\"It should show proposed metering locations, overcurrent protection devices, transformation configuration, incoming service voltage and amperage, conductor sizes and ratings, relay and fuse protection, generator and standby power connections, and motor loads with HP ratings, plus load types and calculations for sizing the main service.\"}]","Electrical Single Line Drawing - Guide - Overview | PDF"]