Xyaum hauv txhua yam khoom txuas nrog hluav taws xob, nws yog qhov tsim nyog los tiv thaiv tib neeg los ntawm hluav taws xob poob siab. Txhua leej txhua tus paub vim li cas qhov av xav tau, tab sis ob peb tus neeg paub yuav ua li cas txhim kho nws kom zoo kom nws ua tiav nws txoj haujlwm.
Yog tias tag nrho cov hlau ntawm cov cuab yeej txuas nrog cov cuab yeej hauv av, ces thaum lub peev xwm muab tso rau ntawm lawv, cov hluav taws xob tam sim no yuav nkag mus rau hauv av. Tom qab ntawd, thaum kov cov hlau, ib qho me me tam sim no yuav dhau los ntawm tus neeg, uas tsis ua rau muaj kev phom sij rau nws.
hluav taws xob xa mus rau cov neeg siv khoom li cas?
Hluav taws xob los ntawm qhov chaw los ntawm cov kab hluav taws xob, ua ntej mus rau lub chaw nres tsheb, thiab tom qab ntawd rau cov neeg siv khoom. Peb theem xaim yog siv rau nws txoj kev sib kis. Plaub tus neeg xyuas pib yog lub ntiaj teb. Nyob rau hauv peb-theem network, lub substation transformer windings txuas nrog raws li "hnub qub" tswvyim. Lub ntsiab lus (nruab nrab) nrog xoom peev xwm yog grounded. Qhov no yog qhov tsim nyog rauib txwm ua haujlwm ntawm cov khoom siv hluav taws xob. Cov av zoo li no hu ua ua haujlwm, tsis tiv thaiv.
Cov chav tsev feem ntau yog muab nrog qhov hluav taws xob ntawm 220 V ntawm theem thiab nruab nrab conductors rau cov vaj huam sib luag hluav taws xob. Hauv ib lub tsev ntiag tug, cov tswv yim tuaj yeem yog 380 V - peb theem thiab nruab nrab. Tom qab ntawd cov xov hlau sib txawv mus rau qhov (sockets) thiab cov teeb pom kev zoo thoob plaws hauv qhov chaw. Ntawm no, ib yam nkaus, ib qho yuav tsum tsis txhob hnov qab tias vim li cas cov av xav tau. Txhawm rau tiv thaiv hluav taws xob poob siab, nrog rau theem thiab nruab nrab conductors, lwm qhov yog muab tso rau hauv av.
Yuav tiv thaiv koj tus kheej ntawm hluav taws xob li cas?
Ib txoj hauv kev los tiv thaiv lossis txo qis hluav taws xob zoo heev yog txhawm rau txhim kho cov khoom siv hauv av. Vim li cas ho xav tau ib lub voj hauv av? Nws yog qhov tsim nyog rau cov khoom siv hauv tsev nrog cov rooj plaub hlau: lub tshuab ntxhua khaub ncaws, lub qhov cub hluav taws xob, tub yees, thiab lwm yam.
Thaum tsim lub peev xwm ntawm cov rooj plaub hlau ntawm cov khoom siv hauv tsev, qhov tam sim no yuav tsum nkag mus rau hauv av. Tab sis rau qhov no, koj yuav tsum xub ua ib tug ntaus ntawv nyob rau hauv daim ntawv ntawm ib tug hlau qauv uas tsim hluav taws xob tiv tauj rau hauv av. Nws tuaj yeem ua tau zoo lossis muaj cov khoom siv hluav taws xob tso rau hauv av.
Lub qhov (socket)
Vim li cas nws thiaj li tsim nyog rau cov khoom siv hluav taws xob hauv av hauv qhov muaj hlau lossis lwm yam khoom? Lo lus nug no qhia meej rau ntau tus. Lawv tuaj yeem ua rau muaj zog thaum lub rwb thaiv tsev ntawm cov xov hlau puas lossis los ntawm qhov luv luv, uas yog qhov txaus ntshai rau tus neeg thaum lub sijhawm kov.
Qhov no kuj yoghais txog cov hlau qhov chaw ntawm lub teeb thiab chandeliers. Nyob rau hauv ib lub tsev nyob, ib tug grounding conductor nrog ib tug ntoo khaub lig seem ntawm 2.5 hli los yog ntau tshaj 2 yog nteg los ntawm hluav taws xob vaj huam sib luag rau txhua qhov hluav taws xob. Vim li cas koj thiaj xav tau grounding hauv qhov hluav taws xob? Qhov no yog qhov tsim nyog los txuas lub ntiaj teb los ntawm kev sib cuag mus rau ib qho khoom siv hauv tsev. Txwv tsis pub, nws yuav tsim nyog rau nteg lub tsheb npav thoob plaws hauv chav tsev thiab ua kev sib txuas los ntawm nws mus rau lub cev ntawm txhua lub cuab yeej, uas tsis yog qhov zoo nkauj heev.
Cov pins hauv av yog tsim los kom lawv txuas nrog ua ntej sai li sai tau thaum lub ntsaws ntsaws ntawm cov hlua ntawm cov khoom siv hauv tsev tau muab tso rau hauv lub qhov (socket). Yog hais tias lub qhov (sockets) txuas nrog ib lub voj, cov av yog txuas nrog nyias mus rau txhua qhov ntawm lub thawv sib txuas.
Kev teeb tsa hauv av
Yog li, vim li cas peb thiaj xav tau av hauv ib lub tsev? Nws yog tsim nyob rau hauv daim ntawv ntawm ib tug kaw voj. Cov duab tuaj yeem yog ib qho, tab sis cov ntaub ntawv tsawg kawg yog siv rau ntawm daim duab peb sab. Raws li ib puag ncig ntawm daim duab peb sab sib npaug, lub trench yog khawb hauv av mus rau qhov tob ntawm 1 m, thiab cov kav hlau lossis cov ces kaum 2.5 m ntev yog hammered rau saum. tooj liab txheej. Tsis txhob pleev xim electrodes. Koj tsuas tuaj yeem ua kua roj vanish qhov chaw vuam.
Cov electrodes yuav tsum protrude 20 cm ntawm hauv qab ntawm trench. Lub Circuit Court yog scalded nrog ib tug sawb, thiab ib tug grounding conductor ua los ntawm tib yam khoom yog coj los ntawm nws mus rau lub tsev. Lub ntsia liaj qhov rooj yog welded mus rau qhov kawg dawb, thiab ib tug PE hlau nrog ib tug ntoo khaub lig seem ntawm 6 hli 2los yog ntau tshaj yog muab tso rau hauv lub vaj huam sib luag hluav taws xob. Ib qho ohmmeter kuaj xyuas qhov hluav taws xob tsis kam ntawm Circuit Court. Raws li cov cai ntawm PUE rau cov tsev nyob, nws yuav tsum tsis pub tshaj 30 ohms.
Yog tias qhov taw qhia dhau qhov kev txwv, cov ces kaum ntxiv raug kaw ze ntawm qhov contour, thiab ua rau jumper. Nyob rau hauv txoj kev no, thaj tsam ntawm kev sib cuag ntawm cov qauv nrog hauv av yog nce. Txhawm rau txo qhov kev tiv thaiv ntawm Circuit Court, cov hlau los ntawm nws yog hloov nrog tooj liab, uas muaj ntau dua conductivity. Tom qab lub trench yog them nrog av. Cov pob zeb crushed, kev tshuaj ntsuam los yog cov khoom siv khib nyiab tsis raug tso cai siv rau qhov no. Cov khoom siv dej noo yuav tsum tau siv: av nplaum, peat, loam.
Muaj peev xwm sib npaug
Hnub no txawm cov menyuam yaus paub tias vim li cas thiaj xav tau av. Nws yog ib qho tseem ceeb kom ntseeg tau tias qhov sib txawv ntawm qhov chaw ntawm lub ntiaj teb raug txo kom tus neeg tsis muaj kev cuam tshuam los ntawm kev kov thiab cov kauj ruam voltages. Nyob rau ntawm qhov chaw nyob saum lub voj kaw, lub peev xwm hloov tau yooj yim, thiab sab nraum nws, qhov poob qis tshwm sim sharply. Txhawm rau tiv thaiv qhov no tshwm sim, kab rov tav steel strips txuas nrog cov electrodes raug faus rau sab nraud.
Raws li cov cai ntawm PUE, kev tiv thaiv hauv av yog ua los ntawm tooj liab. Muaj cov khoom siv tshwj xeeb ntawm kev muag, tab sis lawv muaj tus nqi siab. Rau cov qauv hauv av ntawm cov tsev ntiag tug, feem ntau siv steel qhov chaw.
Zaj lus
Summarize. Yog li, vim li cas koj thiaj xav tau av hauv ib lub tsev ntiag tug? Ua ntej tshaj plaws, qhov no yog vim kev tiv thaiv tib neeg los ntawm kev puas tsuaj hluav taws xob. Nws yog ib qho tseem ceeb kom txhim kho lub voj hauv av kom zoo thiab ua qhov tsim nyogCov khoom siv hluav taws xob sib txuas. Kev noj qab haus huv thiab kev nyab xeeb ntawm cov neeg nyob hauv yog nyob ntawm seb nws tau nruab thiab cov khoom siv li cas.
