我國(電力法》規定:“電力生產與電網運行應當遵循安全、可靠、優質、經濟的原則。電網運行應連續、穩定，保證供電可靠性。”又規定:“國家對電力供應和使用，實行安全用電、計劃用電的管理原則。”因此，建筑變配電工程的基本要求是:安全、可靠、優質、經濟、合理。

安全(quan):在電能的供應、分(fen)配和使用(yong)中(zhong).應避免發生(sheng)人身事(shi)故(gu)(gu)和設備事(shi)故(gu)(gu).實(shi)現安全(quan)供用(yong)電。

可靠:在發(fa)電(dian)(dian)(dian)(dian)(dian)(dian)、供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)系統正常運行的(de)情(qing)況下(xia)，應連續向用(yong)(yong)戶(hu)供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)，不得中(zhong)斷。由(you)于供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)設(she)(she)施檢修(xiu)、依(yi)法(fa)(fa)限(xian)電(dian)(dian)(dian)(dian)(dian)(dian)或(huo)用(yong)(yong)戶(hu)違法(fa)(fa)用(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)等(deng)原(yuan)因，需要中(zhong)斷供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)時(shi)，應按規(gui)定事先通(tong)知用(yong)(yong)戶(hu)。《供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)營業規(gui)則》規(gui)定:“供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)設(she)(she)備計劃檢修(xiu)時(shi)，對35 kV及其以上電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)的(de)用(yong)(yong)戶(hu)的(de)停電(dian)(dian)(dian)(dian)(dian)(dian)次數，每(mei)年不應超(chao)過1次;對10 kV供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)的(de)用(yong)(yong)戶(hu)，每(mei)年不應超(chao)過3次。”

優質(zhi):應(ying)滿足用戶對電(dian)能質(zhi)城的要求。電(dian)能質(zhi)最包括電(dian)壓(ya)質(zhi)量和(he)頻率質(zhi)量，均應(ying)符合現行標準和(he)《供電(dian)營(ying)業規則》中的有關(guan)規定(ding)。

經濟:供配電(dian)(dian)系統的(de)(de)投資要少(shao)，運行費用(yong)要低，盡可能(neng)地節約電(dian)(dian)能(neng)和有色金屬消(xiao)耗量。在供電(dian)(dian)系統設計中，應采(cai)用(yong)符合現(xian)行國家標準(zhun)的(de)(de)效率高(gao)、能(neng)耗低、性能(neng)先進的(de)(de)電(dian)(dian)氣產品(pin)，不得(de)采(cai)用(yong)明(ming)令淘汰的(de)(de)產品(pin)。

合理(li):在供配電(dian)工作中.應合理(li)地處(chu)理(li)局(ju)部和(he)(he)全局(ju)、當前(qian)和(he)(he)長(chang)遠等關系。既要照顧局(ju)部和(he)(he)當前(qian)的利(li)益，又要有全局(ju)觀點(dian)，按照統籌兼顧、保證重點(dian)、擇(ze)優供應的原則，做好(hao)供配電(dian)工作。