[{"data":1,"prerenderedAt":83},["ShallowReactive",2],{"guide-electrical-panel-upgrade-zh-Hant":3},{"guide":4,"related":64},{"title":5,"seoTitle":6,"description":7,"summary":8,"sections":9,"faq":36,"date":43,"service":44,"order":45,"sources":46,"slug":62,"locale":63},"更換電箱及供電升級的徵兆、步驟及所需時間","更換電箱及供電升級｜紐約","紐約市及長島舊屋何時需要更換電箱或升級供電、工程內容及所需時間。先進行負荷計算，可避免不必要的開支。","經常跳閘、仍使用保險絲，或準備加裝電動車充電器、熱泵或新廚房，應先檢查電箱及供電容量。更換電箱一般一天內完成；供電升級還須視乎電力公司的排期。",[10,18,23,32],{"heading":11,"list":12},"需要處理的徵兆",[13,14,15,16,17],"多件電器同時使用時跳閘或燒斷保險絲","電箱發熱、有嗡嗡聲，或有生鏽、燒焦痕跡","現有供電為 60 或 100 安培，並計劃增設大型電器","屬於驗收員及保險公司特別關注的舊型號電箱","電箱已無空位，無法增加新電路",{"heading":19,"paragraphs":20},"更換電箱與升級供電的分別",[21,22],"更換電箱是在供電容量不變的情況下更換斷路器箱。供電升級（例如由 100 安培升至 200 安培）則須一併更換電力公司進線及電錶設備，往往還包括接地系統，費用及工期均高出許多。","負荷計算可判斷需要哪一種工程：把現有用電及計劃新增的用電合併計算。不少房屋計算後只需更換電箱，或採用負載管理，毋須升級供電。",{"heading":24,"list":25},"步驟",[26,27,28,29,30,31],"上門查看及負荷計算","書面估價","由持牌總電工申請電力許可證","供電升級須向電力公司（Con Edison 或 PSEG Long Island）申請","施工，通常需短暫停電","驗收；供電升級另須由電力公司重新接電",{"heading":33,"paragraphs":34},"所需時間",[35],"單純更換電箱，許可證批出後一般一天內完成。供電升級需時較長，因電力公司須排期，可能要等候數星期。如計劃加裝電動車充電器或熱泵，宜提早安排。",[37,40],{"q":38,"a":39},"施工期間是否需要停電？","需要，一般停電約半天。停電時間會事先與您約定，大部分更換電箱工程可於當天恢復供電。",{"q":41,"a":42},"更換電箱是否需要許可證？","需要。在紐約市及長島，電箱及供電工程都須申請電力許可證並通過驗收。","2026-10-24","electrical",2,[47,51,55,59],{"title":48,"url":49,"publisher":50},"Electrical Permit","https:\u002F\u002Fwww.nyc.gov\u002Fsite\u002Fbuildings\u002Fproperty-or-business-owner\u002Felectrical-permit.page","NYC Department of Buildings",{"title":52,"url":53,"publisher":54},"Gas and Electric Service Update Guide","https:\u002F\u002Fwww.coned.com\u002Fen\u002Fsmall-medium-size-businesses\u002Fbuilding-project-center\u002Fgas-and-electric-service-update-guide","Con Edison",{"title":56,"url":57,"publisher":58},"Upgrade or Change Service","https:\u002F\u002Fwww.psegliny.com\u002Fen\u002Fbuildingrenovationservices\u002Fupgradeorchangeservice","PSEG Long Island",{"title":60,"url":61,"publisher":58},"Codes & Specs for Electric Installation","https:\u002F\u002Fwww.psegliny.com\u002Fen\u002Fbuildingrenovationservices\u002Fcodesandstandards","electrical-panel-upgrade","zh-Hant",[65,69,75,79],{"slug":66,"title":67,"description":68,"service":44,"date":43},"nyc-renovation-permits","紐約裝修及電力工程許可證須知","哪些裝修、電力及水喉工程需要紐約市建築局（DOB）許可證、由誰申請，以及長島的不同之處。",{"slug":70,"title":71,"description":72,"service":73,"date":74},"ev-charging-without-service-upgrade","毋須升級供電的電動車充電方案","負載分配、CT 夾動態負載管理、乾衣機插座共用裝置及合適電流的充電器：紐約市及長島毋須升級供電即可安裝充電器的方案。","ev-charging","2026-10-25",{"slug":76,"title":77,"description":78,"service":73,"date":43},"ev-charger-installation","紐約市及長島家用電動車充電器安裝","Level 1 與 Level 2 的分別、電箱容量、許可證、Tesla Powershare，以及紐約市及長島住宅和樓宇安裝須知。",{"slug":80,"title":81,"description":82,"service":73,"date":43},"tesla-powershare-home-backup","Tesla Powershare 電動車家居後備電力","Tesla Powershare 車輛供電至家居（V2H）需要什麼設備、與普通充電器有何不同，以及紐約市及長島所需的許可證。",1792924274635]