Grounding thiab vanishing

Cov electricians cam hais tias yog hais tias tus tiv thaiv kev cob cog rua rau lub grounding nyob ntawm tej thiab nyob thiab plugs yog muab nrog rau hauv pem contacts - koj tsis tas yuav txhawj txog dab tsi. Tiv grounding thiab vanishing yog tsim nyog rau txij nkawm ntawm hluav taws xob sib ntawm hluav taws xob poob siab thaum ib tug rwb thaiv tsev txhaum.

Yuav tsum xyuam xim rau cov teeb meem ntawm lub hauv av hlau kev twb kev txuas mus rau cov dej mov yeeb nkab thiab cov cua kub. Qhov no yuav tsis tau ua nyob rau hauv txhua rooj plaub! Qhov no tej zaum yuav ua rau poob lub neej, thiab koj yuav tsum noj yam xyuam xim nyob rau hauv cov nqe lus hais txog kev tsim txom ntawm hluav taws xob khoom! Nws rau txim yog raug kaw.

Muaj ntau craftsmen xyaum tu yus simulated Circuit Court hauv av. Lawv txuas lub "xoom" tiv thaiv thiab ua hauj lwm conductors nyob rau hauv lub earthing-pin. Qhov no yog tsis tshua muaj txaus ntshai! hlawv-off mob feem ntau tshwm sim nyob rau hauv vaj huam sib luag "ua hauj lwm hauv av". Yog li nyob rau hauv lub computer tsev nyob los yog lub thawv txias thiab lwm yam pab kiag li lawm 220 yog tsim. Raws li nyob rau hauv thawj cov ntaub ntawv, tus neeg uas raug yuav zam tsis, nrog qhov txawv tsuas yog tias yog tsis muaj ib tug mus rau tim lub luag hauj lwm, tsuas yog ib tug neeg ua no kev twb kev txuas. Feem ntau cov feem ntau txom nyem los ntawm tus tswv lawv tus kheej, txuag rau hu ib tug kws electrician.

Grounding thiab vanishing feem ntau yog siv raws li ib tug ntawm cov kev ruaj ntseg ntawm kev xaiv. Lub cev lub ntsiab ntawm cov hluav taws xob vaj huam sib luag rau txhua txhua lub hauv pem teb muaj pes tsawg tej zaum, uas extends los ntawm lub phaj, muaj kev sib cuag nrog lub tsev los ntawm ib tug ntsia liaj qhov rooj fastening. Xoom taw qhov, nyob rau hauv pem teb, dhau lawm, muaj kev cob cog rau lub ntaub thaiv npog cov ntaub ntawv. Txhua kawg yog coj mus rau nws ntsia liaj qhov rooj, ntawm no hlau lub "av" los yog "vanishing", raws li koj xav kom koj hu rau nws.

Hluav taws xob - qhov no yog ib qho zoo, tab sis heev txaus ntshai kev quab yuam. Txawm tias muaj tseeb hais tias nws tau ntev tau piav, suav, tso ua ke ntau yam rooj ntawm impressive tagnrho, ntxawg moj khaum, uas txiav txim sinusoidal hluav taws xob Pib ntsais koj teeb ntawm ib zaus ntawm 50 Hz, plunges neophytes nyob rau hauv awe thiab ceeb. Ib tug ntawm cov nquag cov lus nug yuav grounding thiab vanishing. Kev tsis sib haum kev xav ntawm cov ntawv no tsis muab ib tug ntshiab lus teb. Yuav ua li cas teem lub tseeb nyob rau hauv no txoj thiab loj qhov teeb meem nyob rau hauv kev xyaum? Tiv grounding thiab vanishing yuav tsum tau ntau ceev faj thiab lub luag hauj lwm saib xyuas.

Hluav taws xob cov nyob rau hluav taws xob system yog muab faib mus rau hauv: nroj tsuag, uas yog siab tshaj 1 kV zoo earthed network los yog cais nruab nrab. Rau cov thawj cov ntaub ntawv nws yog muab kev ua hauj lwm uas muaj dej tsaws ntxhee, nyob rau hauv lub thib ob - thiab nrog cov uas tsis muaj av txhaum. Muaj kuj mus 1kV hluav taws xob network. Rau lawv, muab earthed thiab cais nruab nrab. Nyob rau hauv feem ntau chaw ua hauj lwm thiab tsev siv earthed kev xaiv nyob rau hauv Russia.

Lub hauv paus ntsiab lus ntawm cov lag luam ntawm lub Circuit Court nyob rau hauv lub npe ntawm grounding thiab vanishing.

Tom qab kev sib cuag nrog lub voltage los yog theem ntawm ib tug hlau tsev nyob ua ke mus pes tsawg, nws tshwm sim nyob rau hauv lub luv luv Circuit Court network. Thaum no tus taw tes, tam sim no yog nce rau enormous ntau. Qhov no ua rau instantaneous tripping pab kiag li lawm, lub luag hauj lwm rau kev ruaj ntseg thiab kev tiv thaiv. Lawv pab raws li fuses, Circuit Court tej fais fab. Lawv kaw tua tus kab nyob rau hauv ib tug raws sijhawm, uas pub tau ib puas tshuab. Nyob rau hauv txhua rooj plaub, muaj ib lub sij hawm tsis pub tshaj rau lub SAE automatic disconnection ntawm ib tug faulty kab.

Lub vanishing thiab grounding conductors nqa tshwj xeeb muab rau xws li mob. Cov hluas-theem thaiv nws tej zaum yuav ua tau ib tug thib peb neeg xyuas pib cable los yog hlau. Nyob rau hauv thiaj li yuav tiv thaiv cov chav tsev twb kaw nyob rau teem sij hawm, cov kuj ntawm lub "theem-xoom" nyob rau hauv lub voj yuav tsum tau me me. Yuav kom vanishing thiab cov av yuav tsum tau zoo, cov installation ntawm tes hauj lwm thiab kev sib txuas thov heev stringent zoo uas yuav tsum tau. Tsis tas li ntawd ceev disconnect hwj chim ntawm lub faulted kab, grounded nruab nrab, thiab vanishing nyob rau hauv cov ntaub ntawv no kom tsawg voltage. Thaum koj kov tus neeg mus rau lub cev ntawm lub tshuab yog kiag li cais yuav hluav taws xob poob siab. Thaum grounded nruab nrab, nruab nrab grounding yog ib tug zoo ntawm hauv av.