Hauv cov tshuab hluav taws xob niaj hnub no, cov kab hluav taws xob nruab nrab yog cov khoom tseem ceeb ntawm kev xa hluav taws xob thiab kev faib tawm. Lawv ua lub luag haujlwm tseem ceeb hauv nroog cov phiaj xwm hluav taws xob, chaw tsim khoom, cov phiaj xwm hluav taws xob tauj dua tshiab thiab lwm yam haujlwm. Nrog rau kev loj hlob tsis tu ncua ntawm lub zog xav tau thiab qhov nyuaj ntawm cov kab hluav taws xob sib txuas ntxiv, kev ntseeg siab ntawm cov kab txuas txuas tau dhau los ua qhov tseem ceeb tshwj xeeb. Raws li ib feem tseem ceeb ntawm qhov nruab nrab voltage cable system, qhov sib koom ua ke yuav tsum ua kom muaj kev nyab xeeb hluav taws xob, kev siv lub zog, kev tiv thaiv ib puag ncig thiab kev ruaj ntseg mus ntev.
Kab lus no yuav tshawb txog kev sib koom ua ke ntawm cov tshuab hluav taws xob nruab nrab ntawm cov kab hluav taws xob hauv Australia, tsom mus rau yuav ua li cas kom ntseeg tau tias hluav taws xob muaj kev nyab xeeb thiab kev ruaj ntseg mus ntev ntawm cov hluav taws xob hluav taws xob los ntawm kev sib koom tsim thiab kev ntsuas tsim nyog, tshwj xeeb tshaj yog nyob rau hauv daim ntawv thov ntawm nruab nrab voltage armored cables thiab nruab nrab voltage fais fab cables.
1. Vim li cas qhov nruab nrab-voltage cable pob qij txha tseem ceeb heev
Nruab nrab-voltage cable txuas feem ntau yog hais txog qhov uas txuas ob lossis ntau lub cables ua ke. Nws tsis yog tsuas yog lub hauv paus tseem ceeb hauv lub zog hluav taws xob, tab sis feem ntau yog thaj chaw muaj kev pheej hmoo siab rau kev ua tsis tiav. Yog hais tias cov pob qij txha ntawm nruab nrab-voltage cables tsis tau ua kom zoo, nws yuav ua rau muaj qhov tshwm sim loj xws li kev kub siab ntawm cov pob qij txha, kev puas tsuaj ntawm cov hluav taws xob, hluav taws xob luv luv, thiab txawm tias hluav taws kub. Kev sib koom ua ke zoo thiab kev kho mob tuaj yeem tsis tsuas yog ua kom muaj hluav taws xob txuas ntxiv, tab sis kuj txuas ntxiv lub neej kev pab cuam ntawm cable thiab txo qhov tshwm sim ntawm hluav taws xob tsis ua haujlwm.
2. Kev kho mob sib koom ua ke rau cov kab nruab nrab-voltage hauv Australia
Raws li Australian cov qauv thiab cov kev qhia tshwj xeeb ntawm kev lag luam fais fab, kev kho cov kab nruab nrab-voltage cable txuas yuav tsum ua tau raws li cov hauv qab no:
Kev nyab xeeb hluav taws xob
Cov pob qij txha yuav tsum muaj cov khoom siv hluav taws xob zoo, uas tuaj yeem cais cov hluav taws xob muaj zog thiab tsis txhob cuam tshuam tam sim no thiab hluav taws xob luv luv. Cov khoom siv rwb thaiv tsev ntawm qhov sib koom ua ke yuav tsum muaj lub zog dielectric siab thiab ua kom sov zoo los tiv thaiv cov cua sov uas tsim tawm thaum tam sim no ntws los ntawm.
Mechanical zog
Cov pob qij txha ntawm nruab nrab-voltage cables feem ntau yog nyob rau ntawm cov ntsiab lus tseem ceeb ntawm kev sib txuas ntawm cable, yog li cov pob qij txha yuav tsum muaj cov cuab yeej muaj zog txaus los tiv thaiv kev ntxhov siab los ntawm sab nraud siab, nro, cuam tshuam thiab hnyav cable. Tsis tas li ntawd, cov pob qij txha yuav tsum tau muab kaw kom zoo los tiv thaiv ib puag ncig ib puag ncig xws li dej, noo noo, plua plav, thiab lwm yam los ntawm corroding lub cable.
Kev tiv thaiv ib puag ncig
Cov pob qij txha yuav tsum muaj kev hloov pauv ib puag ncig zoo xws li kev tiv thaiv corrosion, kub tsis kam, tsis kub tsis kam, thiab UV tsis kam. Tshwj xeeb tshaj yog nyob rau hauv teb chaws Australia tej yam kev hloov pauv huab cua, cov pob qij txha yuav tsum tau hloov mus rau qhov sib txawv ntawm ib puag ncig, los ntawm cov suab puam kub mus rau thaj chaw ntub dej.
Kev ruaj ntseg ntev
Cov pob qij txha yuav tsum muaj kev ruaj ntseg mus ntev los xyuas kom meej tias lub zog hluav taws xob ua haujlwm ruaj khov rau lub sijhawm ntev tsis muaj cua sov, tawg, luv Circuit Court lossis lwm yam teeb meem txhaum cai. Tshwj xeeb tshaj yog nyob rau hauv kev ua haujlwm siab thiab kub ua haujlwm, cov pob qij txha yuav tsum tau tswj xyuas lawv cov khoom siv hluav taws xob thiab cov khoom siv rau lub sijhawm ntev.
3. Hom kab nruab nrab voltage cable txuas
Hauv kev sib koom ua ke ntawm nruab nrab voltage cables, hom kev sib koom ua ke yog raws li hauv qab no:
Ncaj Joint
Qhov sib txuas ncaj yog siv los txuas ob lub cable conductors, feem ntau yog los ntawm cov hlau pob qij txha los yog crimping. Qhov kev sib koom ua ke no muaj cov qauv yooj yim thiab tus nqi qis, thiab tsim nyog rau kev sib txuas ntawm cable luv.
Ceg Joint (T-Joint)
Cov ceg sib koom ua ke yog siv los faib cov kab hauv ob kab. Hom kev sib koom ua ke no muaj cov qauv siv ntau dua thiab feem ntau yuav tsum muaj kev tiv thaiv dej thiab rwb thaiv tsev ntxiv. Nws yog dav siv nyob rau hauv lub hwj chim faib systems.
Termination Joint
Cov pob qij txha txiav yog siv rau lub davhlau ya nyob twg kev sib txuas ntawm cov cables, feem ntau yog siv rau lub davhlau ya nyob twg ntawm cov cables, nkag mus rau cov khoom siv hluav taws xob, thiab lwm yam. Cov pob qij txha ntawm lub davhlau ya nyob twg yuav tsum tau them nyiaj tshwj xeeb rau cov dej tsis zoo, kub-resistant thiab seismic kev ua tau zoo.
Nruab nrab voltage armored cable pob qij txha
Nruab nrab voltage armored cable pob qij txha yog cov pob qij txha tshwj xeeb rau kev sib txuas nruab nrab voltage cables (tshwj xeeb yog armored cables). Txij li thaum armored cables muaj hlau sheaths ntxiv, kev sib koom tsim yuav tsum xav txog yuav ua li cas kom muaj kev sib txuas zoo ntawm cov hlau sheath thiab cable conductor thiab shielding txheej.
IV. Ua cov kauj ruam ntawm nruab nrab voltage cable txuas
Kev ua haujlwm ntawm qhov nruab nrab voltage cable pob qij txha yog ib txoj haujlwm ua haujlwm uas muaj ntau yam kev sib txuas, txhua qhov cuam tshuam ncaj qha rau qhov zoo thiab kev ruaj ntseg ntev ntawm cov pob qij txha. Cov hauv qab no yog cov kauj ruam yooj yim rau kev ua haujlwm nruab nrab voltage cable txuas:
1. Kev npaj: Cable stripping thiab tu
Ua ntej ua tiav qhov nruab nrab voltage cable sib koom ua ke, lub cable yuav tsum tau muab tshem tawm kom ntseeg tau tias tus neeg xyuas pib, txheej txheej rwb thaiv tsev thiab thaiv txheej hauv qhov sib koom ua ke tuaj yeem raug nthuav tawm rau kev sib txuas thiab kev tiv thaiv. Cov txheej txheem stripping yuav tsum tau ua tib zoo ua kom tsis txhob ua rau cov khoom siv rwb thaiv tsev puas tsuaj hauv lub cable.
Conductor stripping: Tus neeg xyuas pib stripping yuav tsum stripping tawm txheej rwb thaiv tsev sab nrauv kom nthuav tawm cov tub ntxhais conductive. Tus neeg xyuas pib yuav tsum tiaj tus thiab tsis muaj kev puas tsuaj los xyuas kom muaj kev sib cuag zoo.
Rwb thaiv tsev stripping: Thaum stripping txheej rwb thaiv tsev, xyuas kom meej tias lub stripping ntev raws li tus qauv tsim kom tsis txhob muaj ntau stripping uas yuav ua rau cov neeg xyuas pib raug los yog cov pob qij txha tsis ruaj khov.
Shield stripping: Yog hais tias lub cable muaj ntaub thaiv npog, daim ntaub thaiv yuav tsum tau muab tshem tawm thiab xyuas kom meej tias cov ntaub thaiv npog tsis cuam tshuam nrog kev sib koom ua ke.
2. Kev sib txuas conductors: crimping thiab vuam
Nyob rau hauv kev ua ntawm nruab nrab-voltage cable pob qij txha, txuas conductors yog ib qho ntawm cov kauj ruam tseem ceeb tshaj plaws. Feem ntau hais lus, muaj ob txoj hauv kev los txuas cov conductors:
Crimping: Crimping yog txoj hauv kev zoo tshaj plaws los txuas cov conductors. Cov cuab yeej tshwj xeeb yog siv los nias tus neeg xyuas pib thiab qhov sib koom ua ke kom nruj kom ruaj khov. Qhov zoo ntawm crimping ncaj qha cuam tshuam rau hluav taws xob stability ntawm kev sib koom tes.
Vuam: Qee qhov tshwj xeeb, cov neeg siv khoom kuj tuaj yeem txuas nrog vuam. Vuam tuaj yeem muab kev sib txuas ruaj ntseg dua, tshwj xeeb tshaj yog thaum tus neeg xyuas pib qhov chaw ntxhib lossis puas.
3. Txhim kho cov txheej txheem rwb thaiv tsev
Tom qab txuas cov conductors, ib txheej insulating tiv thaiv yuav tsum tau muab ntsia rau ntawm qhov sib koom ua ke. Cov txheej txheej rwb thaiv tsev yog ib qho tseem ceeb rau kev tiv thaiv tam sim no thiab tawg. Cov khoom siv rwb thaiv tsev feem ntau muaj xws li cua sov shrink tubing thiab txias shrink tubing.
Thaum tshav kub kub shrink tubing: Thaum tshav kub kub shrink tubing shrinks lub tubing los ntawm cua sov, yog li nruj nreem qhwv qhov sib koom ua ke. Thaum tshav kub kub shrink tubing tsis tsuas yog muab kev tiv thaiv rwb thaiv tsev, tab sis kuj zoo tiv thaiv kev nkag mus ntawm noo noo, plua plav thiab tshuaj lom neeg.
Cold shrink tubing: Cold shrink tubing shrinks los ntawm stretching thiab tensioning, thiab tsis xav tau cua sov thaum lub sij hawm installation, uas yog ib qho yooj yim rau kev khiav lag luam.
4. Hlau sheath kho (rau nruab nrab voltage armored cables)
Rau nruab nrab voltage armored cables, kev kho mob ntawm cov pob qij txha kuj yuav tsum tau ntxiv sheath tiv thaiv. Cov hlau sheath ntawm armored cable muab kev tiv thaiv txhua yam ntxiv, yog li kev sib koom ua ke yuav tsum tau ua kom muaj kev sib txuas ntawm cov hlau sheath thiab tus neeg xyuas pib, txheej rwb thaiv tsev, thiab thaiv txheej hauv qhov sib koom ua ke.
Hlau sheath kev twb kev txuas: Cov hlau sheath yuav tsum tau nruj nreem txuas rau qhov sib koom ua ke los ntawm cov cuab yeej tshwj xeeb los xyuas kom meej nws lub siab tsis kam. Lub sheath yuav tsum tau txuas nrog hauv av xaim lossis hauv av kom ntseeg tau tias muaj kev nyab xeeb ntawm hluav taws xob.
5. Sealing thiab waterproofing kev kho mob
Txhawm rau kom muaj kev ruaj ntseg ntawm kev sib koom tes hauv kev ua haujlwm ntev, kev sib khi thiab kev kho dej tsis zoo yog qhov tseem ceeb heev. Tshwj xeeb tshaj yog rau nruab nrab-voltage cables nteg nyob rau hauv av los yog nyob rau hauv ib qho chaw ntub dej, kev tiv thaiv tsis muaj dej yuav tiv thaiv corrosion los yog tsis ua hauj lwm ntawm cov pob qij txha.
Waterproof daim kab xev los yog sealant: Siv cov ntaub nplaum tsis muaj dej los yog cov sealant rau qhov sib koom ua ke kom tsis txhob ya raws los ntawm kev sib koom ua ke.
6. Kev kuaj thiab kev kuaj xyuas
Tom qab kev sib koom ua tiav lawm, kev sim ua tiav thiab kev kuaj xyuas yuav tsum tau ua kom ntseeg tau tias cov khoom siv hluav taws xob ntawm kev sib koom ua tau raws li tus qauv yuav tsum tau ua.
DC high-voltage test: siv los ntsuas qhov kev ua tau zoo ntawm kev sib koom ua ke.
Dielectric poob kev xeem: Xyuas seb qhov hluav taws xob poob ntawm qhov sib koom ua ke nyob rau hauv qhov tsim nyog.
