Kev kho dua tshiab hauv tsev invariably cuam tshuam nrog kev hloov kho hluav taws xob. Qhov no tsis yog ib qho teeb meem ntawm kev ua haujlwm nkaus xwb, tab sis - tseem ceeb dua - muaj kev nyab xeeb. Yog li, yuav ua li cas ib tug mus xaiv qhov tsim nyog hlau specifications rau lub tsev renovation project?
BV hlau-nrog PVC rwb thaiv tsev thiab cov tub ntxhais tooj liab- muaj ib qho khoom siv tooj liab; qhov no feem ntau hu ua "hard wire." BVR hlau, ntawm qhov tod tes, nta ib tug multi-strand tooj liab core thiab hu ua "soft wire." Feem ntau hais lus, BV hlau yog siv rau kev xaim dav dav thoob plaws hauv tsev, thaum BVR xaim feem ntau yog tshwj tseg rau kev xaim sab hauv hauv cov khoom hluav taws xob thiab cov thawv xa khoom. Txij li thaum BV hlau yog pheej yig dua thiab yooj yim rau kev tsim khoom, nws zoo kawg nkaus tsim nyog rau cov kev xav tau ntawm cov txheej txheem kev kho vaj tse.
Feem ntau cov xov hlau uas tau ntsib hauv kev kho dua tshiab hauv tsev suav nrog 1.5 mm², 2.5 mm², 4 mm², 6 mm², thiab 10 mm² tooj liab. Hauv kev xyaum, txawm li cas los xij, feem ntau cov kev kho hluav taws xob yuav tsum tsuas yog ob qhov loj ntawm cov hlau: 2.5 mm² thiab 4 mm².
Tshwj xeeb, 2.5 mm² tooj liab hlau yog siv rau kev xaim tag nrho cov keyboards, hluav taws xob hluav taws xob, thiab teeb pom kev zoo thoob plaws hauv tsev. Kev siv ntawm 4 mm² tooj liab hlau yog me ntsis txwv; nws feem ntau yog tshwj tseg rau cov khoom siv hluav taws xob ua haujlwm rau chav ua noj thiab siab - cov khoom siv hluav taws xob- xws li cov tshuab cua txias hauv nruab nrab thiab lub tshuab hluav taws xob dej.
Cov hlau loj dua 4 mm² tsis tshua xav tau hauv kev kho dua tshiab. Thaum 6 mm² lossis 10 mm² cov xov hlau feem ntau yog siv rau cov kev pabcuam tseem ceeb nkag kab (thawj pub nkag mus hauv tsev), yog tias tsis tas yuav hloov lub ntsuas hluav taws xob, cov kev pabcuam nkag rau nws tus kheej, lossis lub ntsiab hluav taws xob, ces tsis muaj laj thawj los siv cov loj loj - ntsuas cov xov hlau- ua li ntawd tsuas yog siv nyiaj pov tseg.
Hloov pauv, cov xov hlau me dua 2.5 mm² tau dhau los ua tsis tshua muaj nyob hauv kev kho vaj tsev niaj hnub. Muab cov khoom siv hluav taws xob ntau zuj zus ntxiv hauv cov tsev neeg niaj hnub no, 1.5 mm² hlau tsis tshua muaj peev xwm ua tau raws li txhua qhov kev xav tau ntawm lub zog tsim nyog.