Video: Koj siv cov hlau dab tsi rau hauv av?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Hom Direct Burial Cables
Feem ntau hom kev faus ncaj qha siv kab nyob rau hauv tej yaam num nyob nyob hauv av kev pabcuam nkag ( Siv ) thiab hauv av feeder (UF). Hom SIV cable feem ntau yog dub thiab feem ntau yog siv rau cov kab faus uas coj lub zog los ntawm kev siv hluav taws xob hloov pauv mus rau ib tus neeg lub tsev.
Ib yam li ntawd, hom hlau twg koj siv rau cov kav dej?
Hlau siv nrog Cov raj Feem ntau hom kab siv nyob rau hauv tsev thaiv yog non-metallic (NM), los yog Romex, kab . Thaum NM kab tuaj yeem khiav hauv kav dej , qhov no tsis tshua muaj ua. Hom ntawm hlau feem ntau ntsia hauv kav dej yog THHN thiab THWN.
Ib sab saum toj, dab tsi yog underground hlau? Ib underground kab yog a kab uas yog faus hauv qab av. Lawv faib hluav taws xob hluav taws xob lossis kev sib txuas lus. Xws li kab yog lwm txoj rau nyiaj siv ua haujlwm kab , uas yog ob peb meters saum av. Nyiaj siv ua haujlwm kab feem ntau hloov nrog underground kab.
Raws li kuv xav tau, kuv xav tau txoj kab hauv av tob npaum li cas?
Lub Tebchaws Hluav taws xob Code (NEC) teeb tsa xav tau faus qhov tob ntawm hluav taws xob hlau nyob rau hauv nruj, tsis yog-hlau conduit, xws li PVC, ntawm 18-nti. Cable nyob rau hauv tej conduit, xws li PVC, uas yog faus ntawm no qhov tob tsis yog nyob rau hauv qhov txaus ntshai ntawm raug txiav los yog cuam tshuam los ntawm ib txwm khawb.
Koj puas xav tau conduit rau underground hlau?
Hauv 24 ntiv tes koj ua tau faus hauv av feeder kab , siv PVC kav dej mus rau 18 nyob rau hauv. hauv qab av xwb qhov twg hlau los txog. Nws kuj nyob ntawm koj hom av-yog tias nws yog xuab zeb thiab yooj yim khawb, txuag nyiaj los ntawm kev khawb tob ( koj yuav tsis xav tau siv hlau kav dej ).
Pom zoo:
Koj puas ntxiv cov kua qaub rau hauv lub hauv paus lossis lub hauv paus rau cov kua qaub?
Ntxiv cov kua qaub ua kom cov concentration ntawm H3O + ions hauv cov tshuaj. Ntxiv ib lub hauv paus txo cov concentration ntawm H3O + ions hauv cov tshuaj. Cov kua qaub thiab lub hauv paus zoo li cov tshuaj tiv thaiv. Yog hais tias lub hauv paus yog ntxiv rau cov kua qaub, cov tshuaj yuav tsis acidic thiab txav mus rau nruab nrab ntawm pH nplai
Dab tsi yog kev siv cov saw hlau nuclear siv rau?
Nuclear chain reaction. Nuclear chain reactions yog cov tshuaj tiv thaiv uas tau txais lub zog nuclear, feem ntau los ntawm nuclear fission. Cov kev cuam tshuam ntawm cov saw hlau no yog qhov muab cov chaw tsim hluav taws xob nuclear nrog lub zog uas tom qab ntawd hloov mus ua hluav taws xob siv los ntawm tib neeg
Cov qauv dab tsi thaum koj nchuav hlau filings nyob ib ncig ntawm cov hlau nplaum?
Thaum cov ntaub ntawv hlau tau nchuav ib ncig ntawm cov hlau nplaum, cov duab ntawm cov hlau nplaum raug ntes. Vim li cas qhov no tshwm sim? Tsis tas li ntawd, cov ntaub ntawv hlau no cais ua cov qauv pom tseeb ntawm cov kab
Dab tsi yog qhov tseem ceeb tshaj plaws uas yuav tsum muaj rau cov kua dej ntws hauv cov kav dej Dab tsi lwm yam cuam tshuam rau cov dej ntws?
Thaum ib qho kev quab yuam sab nraud yog exerted rau ntawm cov kua uas muaj, qhov tshwm sim siab yog kis sib npaug thoob plaws hauv cov kua. Yog li txhawm rau kom dej ntws, dej xav tau qhov sib txawv siab. Cov kav dej kuj tuaj yeem cuam tshuam los ntawm cov kua dej, cov yeeb nkab loj, qhov kub thiab txias (cov kav dej khov), cov kua dej ntom ntom
Dab tsi ua rau cov npuas tsim thaum koj ntxiv cov hydrochloric acid rau zinc hlau?
Mercuric oxide. Mercury hlau. Thaum zincreacts nrog hydrochloric acid, cov tshuaj tiv thaiv bubblesvigorously li hydrogen gas yog tsim. Thaum zinc reacts nrog hydrochloric acid, lub raj kuaj ua kom sov asenergy yog tso tawm thaum lub sij hawm cov tshuaj tiv thaiv