Cables ua lub luag haujlwm tseem ceeb hauv cov tshuab hluav taws xob niaj hnub, tshwj xeeb tshaj yog nyob rau hauv nruab nrab voltage hluav taws xob faib. Raws li lub hauv paus tseem ceeb ntawm kev xa hluav taws xob, cov kab hluav taws xob nruab nrab yog siv dav hauv ntau qhov chaw los ntawm substations mus rau cov chaw lag luam, cov tsev lag luam, thiab cov chaw nyob. Nyob rau hauv teb chaws Australia, nruab nrab voltage cables yog dav siv nyob rau hauv nroog thiab nyob deb nroog fais fab kev faib systems. Kab lus no yuav tsom mus rau cov lus qhia tshwj xeeb, daim ntawv thov thaj chaw thiab ntau hom kab hluav taws xob nruab nrab ntawm cov kab hluav taws xob hauv Australia, tshwj xeeb tshaj yog 11kV tooj liab cables, 5kV nruab nrab voltage cables thiab 35kV nruab nrab voltage cables.
1. Dab tsi yog qhov nruab nrab voltage cable?
Cov kab hluav taws xob nruab nrab yog cov kab hluav taws xob siv los xa thiab xa hluav taws xob, thiab feem ntau haum rau cov tshuab hluav taws xob uas muaj qhov voltage ntawm 1kV thiab 36kV. Cov kab hluav taws xob no feem ntau yog siv los xa hluav taws xob los ntawm cov chaw nres tsheb mus rau cov neeg siv kawg, xws li cov chaw lag luam, cov tsev lag luam, thiab thaj chaw nyob. Nyob ntawm theem voltage, cov kab hluav taws xob nruab nrab tuaj yeem muab faib ua cov kab hluav taws xob tsawg (qis dua 1kV), nruab nrab voltage cables (1kV-36kV), thiab high voltage cables (siab dua 36kV). Nyob rau hauv teb chaws Australia, qhov voltage ntawm nruab nrab voltage cables feem ntau yog 5kV, 11kV, thiab 35kV.
Tus tsim thiab specifications ntawm nruab nrab voltage cables feem ntau txawv raws li qhov sib txawv xav tau kev pab scenarios. Piv txwv li, 11kV tooj liab cables feem ntau yog siv nyob rau hauv nruab nrab-qhov loj qhov hluav taws xob faib tshuab, thaum 35kV nruab nrab voltage cables yog siv rau loj-scale fais fab kis thiab muaj kev siv.
2. Specifications ntawm nruab nrab voltage cables hauv Australia
1. Nruab nrab Voltage Cable Specifications
Cov specifications ntawm nruab nrab voltage cables muaj xws li cov ntaub ntawv conductor, rwb thaiv tsev txheej, shielding txheej, thiab txheej sheaths. Cov lus qhia tshwj xeeb yog tsim los ntawm cov yam ntxwv xws li qib voltage, daim ntawv thov ib puag ncig, kev tiv thaiv kev tiv thaiv thiab tshuaj lom neeg. Nov yog qee qhov kev qhia tshwj xeeb ntawm nruab nrab voltage cables:
Cov khoom siv hluav taws xob: Cov khoom siv hluav taws xob ntawm nruab nrab voltage cables feem ntau yog tooj liab lossis txhuas. Tooj liab muaj qhov zoo conductivity thiab muaj zog dua, yog li 11kV tooj liab cables yog ntau tshaj li txhuas cables nyob rau hauv tej yam kev mob siab. Qhov zoo ntawm cov cables tooj liab yog cov khoom siv hluav taws xob ruaj khov thiab muaj zog oxidation tsis kam, yog li lawv tsim nyog rau cov tshuab hluav taws xob uas yuav tsum tau ua haujlwm ntev.
Cov khoom siv rwb thaiv tsev: Cov txheej rwb thaiv tsev ntawm cov kab hluav taws xob nruab nrab feem ntau yog hla-txuas polyethylene (XLPE) lossis ntawv qhwv roj rwb thaiv tsev. XLPE rwb thaiv tsev cov ntaub ntawv muaj cov hluav taws xob rwb thaiv tsev zoo thiab ua haujlwm kub, uas tuaj yeem tiv thaiv hluav taws xob tawg hauv cable.
Shielding txheej: Txhawm rau txo cov kev cuam tshuam sab nraud ntawm electromagnetic thiab xyuas kom muaj kev nyab xeeb ntawm kev xa hluav taws xob, cov kab hluav taws xob nruab nrab feem ntau yog nruab nrog txheej thaiv. Cov txheej thaiv thaiv feem ntau yog tsim los ntawm tooj liab lossis txhuas ntawv ci, uas tuaj yeem tiv thaiv hluav taws xob cuam tshuam thiab ua kom lub zog compressive ntawm lub cable.
Outer sheath: Lub sheath txheej tiv thaiv lub cable los ntawm kev puas tsuaj thiab ib puag ncig. Cov ntaub ntawv sab nraud xws li polyvinyl chloride (PVC) thiab polyethylene (PE). Nyob rau hauv ib puag ncig hnyav, UV-resistant thiab corrosion-resistant sheath ntaub ntawv kuj yuav tsum tau.
2. 11kV Copper Cable
11kV tooj liab cable yog ib qho ntawm feem ntau nruab nrab-voltage cables nyob rau hauv Australia lub hwj chim tis system thiab yog haum rau ntau yam nruab nrab-voltage fais fab kis tau tus mob thiab tis network. Vim muaj qhov ua tau zoo thiab oxidation tsis kam ntawm tooj liab, 11kV tooj liab cable tuaj yeem muab kev ruaj ntseg xa hluav taws xob hauv feem ntau lub zog.
Hauv nroog thiab kev lag luam hluav taws xob hauv teb chaws Australia, 11kV tooj liab cables feem ntau yog siv rau kev xa hluav taws xob los ntawm substations mus rau ntau qhov chaw thauj khoom. Cov kab hluav taws xob no feem ntau yog tso rau hauv av lossis saum av thiab tuaj yeem tiv taus ntau yam ib puag ncig, nrog rau cov dej noo, tshuaj lom neeg thiab kev siv tshuab siab.
3. 5kV Nruab Nrab Voltage Cable
5kV nruab nrab voltage cables feem ntau yog siv rau cov khoom siv hluav taws xob me me. Lawv feem ntau yog siv rau kev xa hluav taws xob hauv cov chaw nyob qis, thaj chaw lag luam thiab qee qhov chaw lag luam me hauv nroog. Vim yog qhov qis qis, cov cables no zoo dua rau cov ntawv thov uas tsis xav tau kev xa hluav taws xob siab.
Piv nrog rau nruab nrab-voltage cables ntawm qib siab dua, 5kV nruab nrab-voltage cables muaj qhov yuav tsum tau qis rau cov khoom siv hluav taws xob thiab cov txheej txheem rwb thaiv tsev thaum siv. Feem ntau, hom kab no siv tooj liab lossis txhuas ua tus neeg xyuas pib, XLPE ua cov khoom siv rwb thaiv tsev, thiab cov ntawv ci tooj liab lossis txhuas ntawv ci ua cov txheej thaiv.
4. 35kV MV Cable
35kV nruab nrab-voltage cables feem ntau yog siv nyob rau hauv loj industrial tej yaam num, nroog fais fab kev sib txuas, thiab ib co high-voltage fais fab kis tshuab. 35kV cables tuaj yeem xa cov hluav taws xob ntau dhau mus ntev thiab tsim nyog rau cov hluav taws xob faib hluav taws xob nrog cov khoom siv siab thiab siab zog.
Cov qauv tsim rau cov kab no yog siab, thiab feem ntau yog cov khoom siv hluav taws xob zoo, cov khaubncaws sab nraud povtseg polyethylene (XLPE) rwb thaiv tsev, thiab kev tiv thaiv ntau txheej yog siv los xyuas kom muaj kev ruaj ntseg ntawm kev xa hluav taws xob thiab hluav taws xob. Kev siv ib puag ncig ntawm 35kV cables feem ntau yog underground cable trenches, industrial cheeb tsam, thiab sab hauv fais fab chaw nres tsheb.
3. Daim ntawv thov cheeb tsam ntawm nruab nrab-voltage cables hauv Australia
Australia lub zog faib hluav taws xob npog txhua yam ntawm kev tsim hluav taws xob mus rau cov neeg siv khoom siv. Cov kab hluav taws xob nruab nrab yog qhov tseem ceeb ntawm kev sib txuas cov chaw sib txuas thiab cov khoom siv faib khoom. Lawv ua lub luag haujlwm tseem ceeb hauv cov haujlwm tseem ceeb hauv qab no:
1. Kev faib hluav taws xob hauv nroog
Hauv kev faib hluav taws xob hauv nroog, cov kab hluav taws xob nruab nrab feem ntau yog siv rau kev xa hluav taws xob los ntawm substations mus rau ntau lub tsev, factories thiab lwm cov neeg siv kawg. Hauv particular, 5kV nruab nrab voltage cables thiab 11kV tooj liab cables yog dav siv nyob rau hauv nroog fais fab kev tes hauj lwm. Lawv feem ntau muab tso rau hauv av kom ntseeg tau tias kev xa hluav taws xob ruaj khov thaum zam kev puas tsuaj los ntawm kev cuam tshuam rau sab nraud.
2. Industrial fais fab system
Rau cov chaw lag luam loj, 35kV nruab nrab voltage cables yog ib qho tseem ceeb ntawm kev faib hluav taws xob. Cov cables no yog siv los xa cov hluav taws xob high-voltage mus rau ntau qhov chaw tsim khoom hauv lub Hoobkas kom ntseeg tau tias kev ua haujlwm zoo ntawm cov kab ntau lawm thiab cov khoom siv. Vim tias qhov loj ntawm qhov chaw muaj kev lag luam, kev siv 35kV nruab nrab voltage cables tuaj yeem ua tau raws li qhov xav tau ntawm lub zog siab thiab siab load.
3. Fais fab kis tau tus mob
Cov kab hluav taws xob nruab nrab tsis yog siv rau kev faib hluav taws xob hauv zos xwb, 11kV tooj liab cables thiab 35kV nruab nrab voltage cables kuj tau siv dav hauv cov tshuab xa hluav taws xob xa hluav taws xob los ntawm cov chaw tsim hluav taws xob mus rau cov chaw nres tsheb loj. Thaum lub sij hawm xa hluav taws xob, cables uas muaj qhov hluav taws xob ntau dua tuaj yeem ua kom muaj kev ruaj ntseg thiab kev nyab xeeb ntawm kev sib kis mus ntev.
4. Cov tshuab hluav taws xob tauj dua tshiab
Nrog rau qhov nce ntawm lub zog tauj dua tshiab, ntau thiab ntau qhov nruab nrab-voltage cables hauv Australia tau siv rau hauv cov tshuab hluav taws xob xa hluav taws xob rau lub zog tauj dua tshiab xws li hnub ci thiab cua zog. Cov tshuab no yuav tsum xa cov hluav taws xob tau txais los ntawm cov hnub ci vaj huam sib luag lossis cov cua turbines mus rau hauv daim phiaj hluav taws xob lossis cov neeg siv kawg los ntawm nruab nrab-voltage cables. 5kV nruab nrab-voltage cables thiab 11kV tooj liab cables ua tau zoo hauv daim ntawv thov no.
