Grounding nyob rau hauv lub teb chaws nrog lawv tus kheej txhais tes: lub tswvyim, cov duab

Muaj ntau xav kom siv lub caij ntuj sov nyob rau hauv lub teb chaws lub tsev. Qhov no yog ib tug zoo xaiv rau ib tug me ntsis kev khiav los ntawm lub nroog, kom loj hlob lawv tus kheej zaub thiab txiv hmab txiv ntoo. Tab sis tus tsom xam ntawm no tsab xov xwm mus txog teb, thiab kev ruaj ntseg. Yog hais tias yuav tsum tau mus muab grounding nyob rau hauv tus txheej txheem ntawm kev tsim kho ntawm high-sawv tsim tawm, cov private sector muaj saib xyuas ntawm nws tus kheej. Wb tham txog yuav ua li cas yuav ua rau hauv av nyob rau hauv lub teb chaws nrog lawv tus kheej txhais tes. Lub Circuit Court thiab kev twb kev txuas cov txheej txheem - no nyob rau hauv dab tsi ua kom pom tseeb xim.

Yuav ua li cas yog lub hauv pem teb thiab yog vim li cas yog nws yuav tsum tau?

Electric tam sim no yuav muab piv rau dej tsuas yog ib qho khoom ntiag tug. Ua kua thiab ua hluav taws xob khiav los ntawm txoj kev ntawm kawg kuj. Niaj hnub no peb yuav luag tag nyob rau cov nyob rau ntawm hluav taws xob. Nws tuav nyob rau yuav luag tag nrho cov khoom vaj khoom tsev los ntawm TV set thiab xaus nrog cua kub cov khoom.

Txhua yam ntawm cov pab kiag li lawm muaj fuses thiab kev rho tawm, uas yog tsim los tiv thaiv cov neeg siv los ntawm hluav taws xob poob siab. Xav txog tej yam dab tsi yuav tshwm sim yog hais tias tus txheej ntawm insulating cov ntaub ntawv uas yog lawm. Puas tu yog, nws muaj peev xwm ntaus tam sim no. Zoo, yog tias ib tug vending tshuab, uas nyob rau hauv lub sij hawm yuav de-energize cov khoom siv. Yog hais tias nws tsis yog, qhov yuav tshwm yuav ua tau tu siab heev. Qhov ntawd tsis yog tshwm sim, teem hauv av nyob rau hauv lub teb chaws nrog lawv tus kheej txhais tes, lub tswvyim ntawm uas tej zaum yuav sib txawv, tab sis lub essence yog tib yam.

Yuav ua li cas yog nws, ib tug zoo meej grounding?

Lo lus nug no yuav tsum teb unambiguously: uas muaj tus kawg kuj. Peb twb xam tau tawm hais tias tam sim no yuav mus muaj, qhov muaj yog tsawg kuj. Nyob rau hauv peb cov ntaub ntawv nws yog tsim nyog mus cuag qhov tsawg tshaj plaws tau muaj nqis. Nws yuav tsum tau muab sau tseg tias tib neeg lub cev kuj muaj nws tus kheej kuj. Nws txawv nyob ntawm seb lub climatic tej yam kev mob thiab cov tib neeg mob. Piv txwv li, cov tib neeg kuj nyob rau hauv ib tug neeg qaug cawv lub xeev yog negligible, uas yog vim li cas lub drinker yog yeej ib txwm nyuaj rau ciaj sia tom qab ib tug muaj zog hluav taws xob poob siab.

Nyob rau hauv peb cov ntaub ntawv, peb yuav ua raws li qhov tseem ceeb ntawm 4 ohms. Nyob rau hauv cov ntaub ntawv no, lub grounding kuj yuav tsum tau me ntsis tsawg tshaj li qhov no daim duab. Nyob rau hauv txhua rooj plaub, nws yog ntshaw kom paub txog tej ntaub ntawv nyob rau hauv lub SAE. Thiab tam sim no mus ncaj qha rau lub npe.

Yuav ua li cas ib qho tseem ceeb yog cov av?

Muaj ntau yuav hais tias yog tsis muaj qhov sib txawv nyob qhov twg thiab yuav ua li cas sib sib zog nqus rau faus rau hauv av, thiab yuav tsum tau kiag li tsis ncaj ncees lawm. Hom ntawm cov av, dej rooj tob , thiab lwm yam yog cov thawj tseem ceeb. Tab sis nyob rau hauv txhua rooj plaub, yog ib tug general txoj cai. Nws cov lus dag nyob rau hauv lub fact tias lub ntau lub teb chaws yog noo nrog dej, lub shallower koj yuav tsum txhaws cov electrodes. Koj tseem yuav tau txo lawv cov kauj ruam.

Thiab tam sim no txog lub hom ntawm cov av. Nws, dhau lawm, nws muaj nws qhov tseem ceeb nyob rau hauv cov nqe lus ntawm kuj. Piv txwv li, lub peat - 20 Ohm * m, humus thiab av nplaum - 25-30 Ohm * m, zeb av zoo ua qoob - 150 Ohm * m. Nws yog ib nqi hais kuj xuab zeb, uas kuj nce mus txog 500 txog 1,000 Ohm * m. Qhov no parameter tsub kom nrog lub tob ntawm lub av. Raws li koj tau pom, hauv av nyob rau hauv lub teb chaws nrog lawv tus kheej txhais tes, lub tswvyim uas yuav tau los sib tham me ntsis qis, thiaj li ua tsis yog txoj cai.

Tag nrho cov electrodes

Tus thawj yam uas koj yuav tsum txiav txim siab - tob electrodes ntaub pua chaw pw. Nws yog pom zoo kom tsis txhob bury lawv ntxaum tshaj 3 meters, tab sis tsawg tshaj li 1.5 meters ntawm tus nto yuav ua tsis tau ib yam nkaus thiab. Ntawm no ntau npaum li cas nws nyob ntawm seb sib sib zog nqus cov dej no tshwm sim. Yog hais tias nws yog 2.5 meters, nws yuav tsum txaus tsav electrodes mus rau ib tug tob ntawm 2 meters.

grounding tswvyim nyob rau hauv lub teb chaws (nrog lawv ob txhais tes mounted) implies ib tug tej yam suab (deb) ntawm cov electrodes. Nws feem ntau yog ua rau kev txiav txim zoo los lo rau ib tug deb ntawm 1.2-3 meters. Nrog kev xav txog cov xov tooj ntawm electrodes nyob rau hauv lub Circuit Court, qhov tsawg kawg nkaus yuav tsum ua tau peb. pwm - nyob rau hauv ib tug kab los yog ib tug daim duab peb sab. Qhov kev ncua deb ntawm lub contour mus rau lub tsev hauv paus - tsis tsawg tshaj li 3 meters. Nyob rau hauv txhua rooj plaub, nws yog ntshaw kom nrhiav kev pab los ntawm ib tug electrician. Cia lub installation ua hauj lwm koj ua koj tus kheej, tab sis kawm kom paub txog lub hom ntawm cov av thiab qhov tob ntawm cov dej nyob rau ntawm lub tub txawg tseem tsis tau raug mob. Nyob rau hauv tas li ntawd, yuav tsum ua li hauv av Circuit Court nyob rau hauv lub teb chaws nrog lawv tus kheej txhais tes, cov kev pab ntawm qhov tam sim no muaj nyob rau cov kev xaiv rau cov qauv abound. Thiab tam sim no peb mus ntxiv.

Ua rau av nyob rau hauv lub teb chaws nrog lawv tus kheej txhais tes: lub tswvyim, cov duab

Seem no yuav qhia txog kev siv los ntawm grounding loops. Feem ntau cov qauv - ib tug peb tog nrog electrodes nyob rau vertices. Nws yuav tsum tau to taub hais tias tag nrho cov Circuit Court yuav tsum tau nyob rau tib lub tob (hauv qab no av khov).

Ib tug cais cov ntaub ntawv - cov kev twb kev txuas Circuit Court. By lawv tus kheej, electrodes kos nyob rau hauv lub hauv av, tsis txhob nqa tej load. Ua ntej hauv av yog kiag li npaj txhij, lawv yuav tsum tau sib txuas lus nrog txhua lwm yam. Rau no haum ib tug hlau sawb, nyob rau hauv huab mob - fittings.

Hais txog lub hom kev twb kev txuas, ces qhov muaj feem thib yog yuav tsum tau Vuam, Ntxiv, nws yog tsim nyog los siv ib txoj kev txuas lub electrodes rau txhua lwm yam. Los ntawm ib tug electrode mus rau lub hwj chim txee (hluav taws xob vaj huam sib luag) tuav lub steel sawb. Raws li electrodes yuav siv steel ces kaum seem 4 x 4 hli, lub armature 12 x 12 hli, ib tug yeeb nkab steel nrog ib tug phab ntsa thickness tsis tsawg tshaj li 3.5 hli los yog ib tug steel sawb ntawm 12 x 4 mm. Nyob rau hauv Feem ntau, qhov no, raws li zoo raws li ib tug duav thiab crowbar yuav tsum txaus rau npaj tag nrho hauv av.

Hais txog qhov kev cov ntaub ntawv thiab tus ntoo khaub lig seem ntawm electrodes

Nws yog muaj kev ruaj ntseg hais tias koj yuav tsum thawb tawm ntawm tus ntoo khaub lig-seem ntawm cov khoom. Tiam sis peb yuav tsum to taub hais tias yog koj ua si ib qho tseem ceeb luag hauj lwm, thiab hais tias yuav yuav tau kom tau ib tug xaiv electrode mus rau hauv lub hauv av. Piv txwv li, tej zaum koj yuav xav sharpened ntawm hauv paus ntawm lub steel pas nrig yog tsis tseem ceeb, nws yuav yeeb nkab profile los yog I-kab teeb. Yog hais tias koj coj ib lub ces kaum, nws yuav txiav siv ib tug li. Yog li ntawd yuav tau txais ib tug ntse npoo, uas yog heev yooj yim mus tsav tsheb mus rau hauv av. Tab sis raws li li qub, ntawm no nws yog tsis tsim nyog corrugated vim av kuj yuav txo tau.

Yog hais tias koj muaj lub sij hawm mus yuav npaj txhij-ua cov khoom siv rau grounding, nws yuav ua tau li ntawd. Nws yog ib tug txheej ntawm electrodes coppered ib 'meter' ntev. Qauv yog kev cob cog rua los ntawm txoj kev threaded sib txuas. Nws yog heev yooj yim, thiab lub installation yog nqa tawm sai li sai tau, nws yog tseeb, tus nqi ntawm xws li ib tug txheej ntawm es loj. Los ntawm txoj kev, nws tsis muaj nqi, nws ua av nyob rau hauv lub teb chaws nrog lawv tus kheej txhais tes rau ib tug roj boiler los yog ib tug microwave qhov cub, raws li cov steel sawb yog kev cob cog rua rau lub hwj chim txee. Yog li ntawd, tag nrho cov khoom yuav tsum grounded.

Yuav ua li cas yuav ua rau ib tug hauv av rau muab lawv tus kheej txhais tes: kauj ruam yog kauj ruam qhia

Tam sim no yog lub sij hawm mus pib lub excavation. Peb twb txiav txim siab nyob rau hauv lub electrode khoom thiab qhov tob ntawm lawv tshwm sim. Tam sim no koj yuav tsum tau xaiv ib tug haum qhov chaw. Qhov muaj feem thib yuav tsum mus khawb ib trench nyob rau hauv 10 meters los ntawm lub vaj huam sib luag. Ua ntej ntawm tag nrho cov peb khawb ib trench ib nrab ib Meter dav thiab ib 'meter' sib sib zog nqus rau qhov luaj li ib tug equilateral daim duab peb sab. Los ntawm nws ua ib tug trench rau lub hwj chim txee. Yog hais tias cov kev ceev thiab hom ntawm cov av daim ntawv tso cai, ua mus tsav lub electrodes nyob rau hauv ib tug daim duab peb sab. Txwv tsis pub nws yog tsim nyog los tho ib lub qhov me me.

Nws yog noteworthy tias yog hais tias peb drilled qhov dej, lub caij so yuav tau sau nrog av thiab sib tov nws nrog ntsev. Qhov no yuav txo tau cov kuj, tab sis xeb txheej txheem yuav npaj mus ntau nquag. Tom qab kev txhim kho cov electrodes yuav tsum sawv ib me ntsis saum toj no cov av thiaj li hais tias lawv muaj peev xwm yuav welded. Nco ntsoov tias yuav ua li cas grounding nyob rau hauv lub teb chaws nrog lawv tus kheej txhais tes tsis muaj Vuam tsis tsim nyog. Tom qab lub vuam tej hauj lwm yuav tau ua kom tiav thiab peb yuav tau txais ib tug kaw daim duab peb sab, kev sawb mus rau lub hwj chim txee. Muaj ntswj kom nruj nws nrog ib tug ntsia liaj qhov rooj ntawm 10 hli thiab welds nws mus rau lub band.

Test ua hauj lwm

Thaum koj tau ua tiav tag nrho cov saum toj no cov kauj ruam, nws yog tsim nyog los xyuas cov kuj ntawm lub Circuit Court. Rau no peb yuav tsum tau ib tug ohmmeter. Nyob rau hauv cov ntaub ntawv no, nws yog ntshaw kom koom nrog cov kws tshwj xeeb los ntawm lub zog tswj. Nws yuav ua kom cov kev tsim nyog ntsuam yog hais tias tus hauv av nyob rau hauv lub teb chaws, lub tswvyim ntawm uas twb qhia me ntsis siab dua, nws yeej muaj tseeb, ua qhov tsim nyog cov ntaub ntawv.

Yog hais tias peb muaj kuj tsawg tshaj li 4 ohms, ces kuj zoo kawg, yog hais tias tsis - yog expanding peb Circuit Court nrog ntxiv electrodes. Yog hais tias txhua yam yog nyob rau hauv kev txiav txim, ces peb poob pw tsaug zog trench. Nyob rau hauv cov ntaub ntawv no, siv cov khib nyiab thiab lwm yam thoob khib nyiab. Nqus xav tau niaj hnub av.

Qhov no yog ib qho tseem ceeb

Xyuam xim rau lub fact tias muaj ntau cov kws txawj pom zoo kom yuav tsum vov lub dej Circuit Court, li no kom txhob muaj cov kuj. Feem ntau, yog li ua ntej lub sij hawm tuaj txog ntawm lub zog tswj tub ceev xwm, uas muaj tsis muaj cov ntaub ntawv tej teeb meem. Tab sis peb sim tsis mus rau lub hom phiaj ntawm printing rau ntawm daim ntawv, tab sis rau koj tus kheej muaj kev ruaj ntseg, tsis txhob hnov qab txog nws.

Yog hais tias koj nyob rau tus mob rocky struts, ntsug uake ntawm cov electrodes koj yuav tsis ua li cas. Nyob rau hauv cov ntaub ntawv no, nws yog advisable siv kab rov tav los yog radial hom electrodes. Yuav tsum tau kauj ruam ntawm 3 mus rau 10 meters thiab electrodes yuav tsum tau teem nyob rau hauv ib tug divergent beam los yog daim phiaj.

xaus

Lwm txoj kev zoo tawm - av mus rau lub tsev nyob rau hauv pawg foundation. Nyob rau hauv cov ntaub ntawv no, koj tsis tas yuav mus khawb ib trench thiab txhaws cov electrodes. Peev xwm txaus los mus ua kom lub contour ntawm lub pawg. Tab sis peb yuav tsum to taub hais tias nyob rau hauv cov ntaub ntawv no tsub kom qhov yuav ntawm galvanic corrosion. Li ntawd, cov pawg pab kev txiav txim ntawm qhov ntau tsawg tshaj li lawv yuav ua tau. Tab sis nyob rau hauv cov nqe lus ntawm kev ntseeg yog lub tshuaj zoo meej rau tej tes.

Nyob rau hauv kev, peb xam tawm yuav ua li cas ua av nrog lawv ob txhais tes. Tshwj xeeb tshaj yog tsis muaj dab tsi nyuab, qhov tseem ceeb tshaj plaws - yuav tsum tau attentive ntawm tag nrho cov ua sawv, nqa mus rau hauv tus account lub qhov tob ntawm av khov, hauv av theem dej thiab lwm yam tseem ceeb muaj nqis. Nyob rau hauv txhua rooj plaub, yog tias koj ua nws txoj cai, koj yuav txaus siab. Risk ntawm hluav taws xob poob siab los ntawm khoom vaj khoom tsev yuav tsum tau khaws cia rau ib tug tsawg kawg nkaus.