Lub hauv paus qauv ntawm lub hwj chim cable yog tsim los ntawm plaub yam: hlau core (conductor), rwb thaiv tsev txheej, shielding txheej thiab tiv thaiv txheej. Cov txheej txheej rwb thaiv tsev yog qhov hluav taws xob sib cais ntawm cov tub ntxhais hlau thiab hauv av thiab cov theem sib txawv ntawm cov tub ntxhais hlau los xyuas kom muaj kev sib kis ntawm cov hluav taws xob hluav taws xob, thiab yog ib feem tseem ceeb ntawm cov qauv fais fab cable.
Lub luag haujlwm ntawm cov txheej txheem rwb thaiv tsev:
Lub hauv paus ntawm ib tug cable yog ib tug conductor. Txhawm rau tiv thaiv cov khoom puas tsuaj los ntawm luv luv Circuit Court ntawm cov xov hlau thiab kev puas tsuaj rau tib neeg los ntawm cov xov hlau uas tshaj qhov kev nyab xeeb voltage, ib txheej insulating tiv thaiv yuav tsum tau ntxiv rau cable. Qhov hluav taws xob resistivity ntawm cov hlau conductor nyob rau hauv lub cable yog me me, thiab hluav taws xob resistivity ntawm lub insulator yog siab heev. Yog vim li cas vim li cas cov insulator tuaj yeem insulated yog vim: qhov zoo thiab qhov tsis zoo hauv cov molecules ntawm lub insulator yog nruj heev, cov nqi them tuaj yeem txav tau yooj yim tsawg, thiab cov resistivity loj heev, yog li feem ntau, cov macro tam sim no tsim los ntawm cov nqi them dawb nyob rau hauv qhov kev txiav txim ntawm cov hluav taws xob sab nraud tuaj yeem tsis quav ntsej, thiab nws suav tias yog cov khoom siv tsis zoo. Rau cov insulators, muaj ib tug tawg voltage uas muab electrons txaus lub zog rau excite lawv. Thaum lub zog tawg tau dhau lawm, cov khoom siv tsis muaj zog ntxiv lawm.
Dab tsi yog qhov cuam tshuam ntawm tsis tsim nyog rwb thaiv tsev thickness ntawm lub cable?
Shorten lub neej kev pab cuam ntawm cov khoom siv hlau thiab cable, yog tias lub ntsiab lus nyias ntawm lub cable sheath tsis ua raws li qhov yuav tsum tau ua, tom qab lub sijhawm ua haujlwm ntev, tshwj xeeb tshaj yog nyob rau hauv qhov chaw ncaj qha faus, submerged, qhib lossis corrosive ib puag ncig, vim lub sij hawm ntev corrosion ntawm sab nraud nruab nrab, rwb thaiv tsev theem thiab txhua yam ntawm lub nyias taw tes ntawm sheath yuav raug txo. Kev kuaj xyuas cov ntaub ntawv niaj hnub los yog cov kab hauv av tsis ua haujlwm, cov taw tes nyias yuav raug tawg, kev tiv thaiv ntawm cable sheath yuav ploj. Tsis tas li ntawd, kev siv sab hauv tsis tuaj yeem tsis quav ntsej, xaim thiab cable ntev lub zog yuav ua rau muaj cua sov ntau, nws yuav ua rau lub neej luv luv ntawm cov hlau thiab cable. Yog tias qhov zoo tsis yog raws li tus qauv, nws yuav ua rau hluav taws kub thiab lwm yam kev nyab xeeb.
Ua kom muaj kev nyuaj ntawm cov txheej txheem pw, yog li cov qauv tuab, yog li nws tsis tuaj yeem ua lub luag haujlwm ntawm kev tiv thaiv cov xaim thiab cable. Ib qho ntawm cov yam ntxwv ntawm cov khoom zoo yog cuam tshuam los ntawm qhov zoo ntawm cov khoom. Txawm hais tias nws yog lub zog hluav taws xob lossis cov ntaub ntawv yooj yim, cov txheej txheem rwb thaiv tsev zoo yuav tsum tau them nyiaj rau hauv kev tsim khoom, thiab nws yuav tsum nruj me ntsis tswj thiab kuaj.
Tej zaum ntau tus neeg yuav muaj kev tsis ntseeg, txij li lub luag haujlwm ntawm cov txheej txheem rwb thaiv tsev yog qhov loj heev, qhov saum npoo ntawm lub teeb pom kev zoo cable thiab qis-voltage cable yog them nrog ib txheej ntawm cov yas los yog roj hmab rwb thaiv tsev, thiab cov high-voltage cable nyob rau hauv lub tshav pob yog tsis them nrog rwb thaiv tsev.
Vim tias thaum muaj hluav taws xob ntau dhau lawm, qee cov ntaub ntawv uas thaum xub thawj insulating, xws li roj hmab, yas, ntoo qhuav, thiab lwm yam, kuj yuav ua cov conductors, thiab yuav tsis muaj cov nyhuv insulating. Wrapping rwb thaiv tsev ntawm high-voltage cables yog ib qho pov tseg ntawm cov nyiaj thiab cov peev txheej. Qhov saum npoo ntawm high-voltage xaim tsis yog npog nrog rwb thaiv tsev, thiab yog tias nws raug tshem tawm ntawm tus pej thuam siab, nws yuav xau hluav taws xob vim yog kev sib cuag nrog tus pej thuam. Txhawm rau tiv thaiv qhov tshwm sim no, cov xaim hluav taws xob siab yog ib txwm raug tshem tawm nyob rau hauv ib lub sijhawm ntev ntawm cov khoom siv hluav taws xob zoo insulated, kom cov xaim hluav taws xob siab yog insulated los ntawm cov pej thuam. Tsis tas li ntawd, thaum txhim kho high-voltage cables, tsis txhob rub lawv rau hauv av. Txwv tsis pub, vim muaj kev sib txhuam ntawm cov xaim thiab hauv av, cov txheej txheej txheej txheej txheej txheej txheej thaum ub raug puas tsuaj, thiab muaj ntau cov burrs, uas yuav ua rau cov kua paug tawm, uas ua rau kom tawg.
Lub rwb thaiv tsev txheej ntawm lub cable yog teem raws li cov kev xav tau ntawm lub cable. Nyob rau hauv cov txheej txheem ntau lawm, manufacturers yuav tsum tau tswj lub rwb thaiv tsev thickness nyob rau hauv nruj raws li tus txheej txheem txheej txheem, ua tiav cov txheej txheem kev tswj, thiab xyuas kom meej cov zoo ntawm cov hlau thiab cable.
Post lub sij hawm: Nov-14-2024