Kev cais hluav taws xob yog qhov tseem ceeb tshaj plaws rau kev ua kom muaj kev nyab xeeb ntawm kev ua haujlwm nrog cov khoom siv hluav taws xob thiab lawv txoj haujlwm tsis cuam tshuam. Qhov kev txiav txim ntawm alternating tam sim no, tsis pub tshaj 0.5 mA, yog xyaum imperceptible los ntawm tib neeg lub cev. Raws li cov kev cai tam sim no, qhov hloov pauv tam sim no nrog ntau zaus ntawm tsib caug hertz, ntws los ntawm tib neeg lub cev, yuav tsum tsis pub tshaj 03 mA. Yog li ntawd, kev ntsuas kev ntsuas ntawm kev tiv thaiv hluav taws xob yog qhov tsim nyog los ntsuas kev nyab xeeb hluav taws xob thaum ua haujlwm nrog cov khoom siv hluav taws xob siab.
Tus yam ntxwv tseem ceeb tshaj plaws ntawm cov txheej txheej insulating hauv qhov no yog qhov taw qhia ntawm nws cov hluav taws xob tsis kam. Muaj ntau ntau hom rwb thaiv tsev siv nyob rau hauv high voltage hluav taws xob installation. Cov txheej txheej ua haujlwm yog tsim los ua kom lub cev ua haujlwm ntawm lub tsev. Nws raug xaiv coj mus rau hauv tus account cov yam ntxwv ntawm txhua tushluav taws xob installation. Yog li ntawd, kev ntsuas tsis tu ncua ntawm hom kev tiv thaiv rwb thaiv tsev no yog qhov tsim nyog los tswj kev ncaj ncees ntawm cov txheej txheem, uas ua kom muaj kev ua haujlwm zoo ntawm cov khoom siv.
Cov rwb thaiv tsev ntxiv, uas ua rau muaj kev tiv thaiv kev ua haujlwm, yog npaj los tshem tawm txawm tias muaj kev cuam tshuam me ntsis ntawm hluav taws xob thaum muaj kev puas tsuaj rau lub ntsiab txheej. Ntsuas hom kev tiv thaiv rwb thaiv tsev no yog qhov tseem ceeb rau kev ruaj ntseg hluav taws xob.
Ntxiv rau, qee yam khoom siv hluav taws xob siv ob chav rwb thaiv tsev, uas yog kev sib xyaw ntawm ob hom txheej saum toj no. Ib qho tshwj xeeb ntawm kev sib xyaw ua ke no yog tias qhov chaw ntawm lub tsev tuaj yeem kov tau yuav tsis tau txais qhov txaus ntshai voltage txawm tias ib qho ntawm cov txheej insulating (ua haujlwm lossis ntxiv) puas lawm. Ntsuas qhov rwb thaiv tsev tiv thaiv ntawm hom no yog txo los ntawm kev saib xyuas tag nrho kev ncaj ncees ntawm lub plhaub thiab txhua yam ntawm nws cov khoom sib cais.
Qhov xav tau rau kev tswj hwm thiab ntsuas kev ntsuas tsis tu ncua yog vim muaj cov xwm txheej uas ua rau cov txheej txheem insulating tsis zoo thiab ua rau nws degradation. Tej yam ua rau muaj kev puas tsuaj xws li, ua ntej ntawm tag nrho cov, hluav taws xob thiab txhua yam kev puas tsuaj; kev cuam tshuam ntawm cov tshuaj lom neeg nruj heev, uas tsis tshua muaj tshwm sim hauv kev tsim khoom; thermal puas.
Cov cuab yeej ntsuas kev tiv thaiv rwb thaiv tsev yog hu ua megaohmmeter. Cov cuab yeej no yog npaj tsis tsuas yog ntsuas qhov tsis kam ntawm cov khoom siv insulating, tab sis kuj los xyuas nws lub zog hluav taws xob (hauv lwm lo lus, kev sim rau qhov tsis muaj hluav taws xob tawg). Ua ntej kuaj, cov khoom siv hluav taws xob yuav tsum tau de-energized. Cov txheej txheem ntawm kev ntsuas lub rwb thaiv tsev ntawm cov khoom siv hluav taws xob muaj nyob rau hauv qhov tsim ntawm lub plab zom mov ntawm lub cuab yeej los ntawm kev siv tshwj xeeb built-in electromechanical DC generator ntawm qee qhov kev tswj hluav taws xob, uas yog siv rau cov khoom hauv kev sim. Hauv qhov no, ntsuas qhov ntsuas hluav taws xob yuav tsum tshaj qhov hluav taws xob network.
