Cable txhaum qhov chaw yuav txheeb xyuas qhov tseeb ntawm qhov txhaum, xws li luv luv Circuit Court, qhib Circuit Court, los yog rwb thaiv tsev tawg, nyob rau hauv cable. Siv cov cuab yeej tshwj xeeb xws li Cable Fault Locators, Time Domain Reflectometers (TDR locators), thiab Pinpointing lossis Listening Devices, cov kws tshaj lij tuaj yeem kuaj xyuas thiab kho qhov tsis raug.
Rwb thaiv tsev Resistance Test nrog megohmmeter
Ua ib qho kev ntsuas rwb thaiv tsev los ntsuas qhov ntsuas hluav taws xob ntawm MV cable nrog megohmmeter. Tus nqi qis qis qhia tau hais tias muaj peev xwm ua tsis tiav, uas yog hom kev ua txhaum ntau hauv MV cables. Qhov kev sim ua ntej no pab kom paub meej tias muaj qhov ua txhaum thiab nws qhov hnyav.
Fault Location nrog TDR Locator
Lub Sijhawm Domain Reflectometer (TDR) locator yog ib qho ntawm cov cuab yeej siv tau zoo tshaj plaws rau kev tshawb nrhiav qhov txhaum thawj zaug. TDR xa cov mem tes ceev ceev ntawm lub cable thiab txheeb xyuas cov teeb liab cuam tshuam los ntawm kev hloov pauv impedance qhov twg muaj qhov txhaum. Lub sij hawm siv rau qhov kev xav rov qab los pab xam qhov kev ncua deb mus rau qhov txhaum nrog qhov tseeb siab. TDR locators muaj txiaj ntsig tshwj xeeb rau kev txheeb xyuas qhov siab -tsis kam thiab tsis sib xws, suav nrog cov kab sib txuas thiab cov khoom sib txuas.
Pinpointing qhov txhaum siv Cable Fault Locator
Thaum kwv yees qhov teeb meem txhaum cai raug txiav txim los ntawm TDR, yuav tsum muaj qhov chaw txhaum ntau dua, tshwj xeeb tshaj yog nyob rau hauv kev teeb tsa nyuaj xws li faus lossis hauv av cables. Cable Fault Locator siv tshwj xeeb voltage pulses, xws li surge los yog thumping txoj kev. Qhov tshwm sim hluav taws xob ua txhaum cai tsim lub suab nrov lossis kev cuam tshuam ntawm cov neeg kho tshuab tsis yooj yim plam los ntawm cov neeg taug kev hla lossis kuaj pom los ntawm cov cuab yeej ntawm qhov chaw.
Siv Pinpointing/Listening Devices
Txhawm rau txheeb xyuas qhov tseeb ntawm qhov txhaum, cov kws tshaj lij siv cov cuab yeej mloog lossis cov cuab yeej pinpointer uas kuaj pom qhov txhaum- tsim cov suab lossis cov cim hluav taws xob. Cov cuab yeej no tuaj yeem ua kom pom cov cim tsis zoo los ntawm kev ua txhaum hauv av thiab pab cov neeg soj ntsuam xyuas qhov tseeb rau kev khawb lossis kho. Pinpointing li indispensable nyob rau hauv lub nroog los yog congested cov cheeb tsam uas qhov chaw tsis muaj teeb meem.