Thaum lub cable overheats, nws yog ib qho tseem ceeb heev vim tam sim no nyob rau hauv tus neeg xyuas pib, kev sib cuag tsis zoo, tsis zoo cua sov dissipation, thiab laus rwb thaiv tsev, thiab lwm yam. Yog hais tias qhov kub thiab txias tshaj qhov tso cai ua hauj lwm kub ntawm lub cable, nws yuav ua rau ib tug series ntawm zuj zus lawm faults, xws li los ntawm kev ua hauj lwm degradation mus rau hluav taws.
1. Ceev rwb thaiv tsev laus thiab ua kom luv luv lifespan
Cov txheej rwb thaiv tsev ntawm cable (PVC, cross- txuas polyethylene XLPE, thiab lwm yam) yog qhov kub thiab txias heev.
Yog tias qhov kub siab tshaj qhov txwv ntev, cov khoom siv rwb thaiv tsev yuav raug thermal aging: hardening, ua nkig, tawg, thiab poob elasticity.
Nrog rau txhua qhov nce hauv qhov kub thiab txias los ntawm qee qhov ntau, lub rwb thaiv tsev lifespan yuav txo qis exponentially. Ib txoj kab hluav taws xob uas tuaj yeem kav ntev li 20-30 xyoo yuav poob tom qab ob peb xyoos xwb.
Micro tawg tsim nyob rau hauv lub rwb thaiv tsev, tso cai rau noo noo mus txeeb, ntxiv deteriorating lub rwb thaiv tsev kev ua tau zoo.
2. Rwb thaiv tsev tawg, ua rau kom tawg thiab luv luv
Tom qab cov rwb thaiv tsev muaj hnub nyoog thiab ua thinner, los yog tsim cov kab nrib pleb, nws cov rwb thaiv tsev tiv taus qhov muaj peev xwm txo qis.
Cov dej xau: Cov rwb thaiv tsev tiv thaiv txo qis, ua rau lub casing dhau los ua hluav taws xob, tsim kom muaj kev nyab xeeb ntawm hluav taws xob poob siab, thiab cov khoom tiv thaiv xau feem ntau mus ncig.
Theem-rau-theem luv circuits / Hauv av luv luv: Lub rwb thaiv tsev puas tag, nrog rau luv luv circuits ntawm theem kab lossis nruab nrab ntawm theem kab thiab hauv av, tsim ib qho luv luv -circuit tam sim no thiab hlawv cov khoom siv.
3. Kev puas tsuaj rau cov connectors thiab terminals, amplifying contact faults
Cov connectors thiab davhlau ya nyob twg thaiv ntawm lub cable yog tsis muaj cua sov dissipation cov ntsiab lus. Overheating yuav ua rau lub voj voog vicious:
Cov hlau terminals oxidize thiab dhau los ua xoob, ua rau kev tiv thaiv tiv thaiv ntxiv, ua rau muaj cua sov hnyav dua.
Yuav muaj sparking, arcs, thiab kev sib txuas terminals yuav raug hlawv, ua rau lub voj voog tam sim ntawd poob hwj chim.
4. Hluav taws kub thiab combustion, hluav taws xob hluav taws xob (qhov tshwm sim loj tshaj plaws)
Lub rwb thaiv tsev txheej ntawm lub cable yuav mos thiab melts vim kub siab, tom qab igniting lub rwb thaiv tsev sheath; PVC cables tseem yuav tso tawm ntau cov pa luam yeeb thaum cua sov.
Arcs thiab kub kub ignite cov cables nyob ib puag ncig thiab combustibles, uas yog ib qho tseem ceeb ua rau hluav taws xob hluav taws xob.
Ntau qhov hluav taws xob hluav taws xob tshwm sim thaum ntxov, tsis muaj qhov tsis pom tseeb, thiab tom qab ntawd mam li tawg mus rau hauv cov nplaim taws.
5. Degradation ntawm conductor kev ua tau zoo, nce kab poob
Raws li tus neeg xyuas pib kub nce, qhov kev tiv thaiv nce, cov kab hluav taws xob poob nce, thiab lub davhlau ya nyob twg voltage yuav qis dua.
Lub zog poob nce, nkim hluav taws xob hluav taws xob; cov khoom siv thauj khoom tuaj yeem ua haujlwm tsis zoo vim qhov tsis txaus voltage.
6. Kev puas tsuaj rau cov khoom siv nyob ib sab
Cable overheating yuav ci cov kab uas nyob ib sab, ua rau tag nrho cov khoom siv hluav taws xob rau hnub nyoog sib sau ua ke;
luv- Circuit Court txhaum yuav cuam tshuam rau cov khoom siv hluav taws xob, hloov pauv, zaus hloov pauv thiab lwm yam khoom siv hluav taws xob, ua rau cov khoom kub hnyiab.
Feem ntau ua rau cable overheating
- Cov kab hluav taws xob raug xaiv - ntu me dhau, ua rau kev ua haujlwm dhau
- Tsis zoo crimping ntawm cov connectors, xoob terminals
- Dense cable laying and blocked conduits, poor heat dissipation conditions
- Lub rwb thaiv tsev muaj hnub nyoog thiab ua haujlwm nrog kev ua txhaum
- Harmonic tam sim no ua rau lub cable kom sov
Yooj yim txiav txim siab ntawm cov teeb liab
Yog hais tias lub cable sab nraud ntawm daim tawv nqaij yog kub, tawv, tsis muaj xim, los yog muaj ib tug burnt tsw, nws yog ib tug overheating ceeb toom. Koj yuav tsum tshawb xyuas tam sim ntawd thiab tsis txhob txuas ntxiv mus ua haujlwm hauv qab load.
