Cov qauv yooj yim ntawm cov xaim thiab cable suav nrog tus neeg xyuas pib, rwb thaiv tsev, tiv thaiv, sheath thiab lwm yam.
1. Tus coj
Muaj nuj nqi: Tus neeg xyuas pib yog ib feem ntawm cov hlau thiab cable uas xa hluav taws xob (sib nqus) lub zog, cov ntaub ntawv thiab paub txog cov haujlwm tshwj xeeb ntawm kev hloov hluav taws xob hluav taws xob.
Khoom siv: Muaj cov khoom siv tsis muaj coated, xws li tooj liab, txhuas, tooj liab alloy, aluminium alloy; hlau-coated conductors, xws li tinned tooj liab, silver-plated tooj liab, nickel-plated tooj liab; hlau-clad conductors, xws li tooj liab-clad steel, tooj liab-clad aluminium, aluminium clad steel, thiab lwm yam.
2. rwb thaiv tsev
Kev Ua Haujlwm: Cov txheej txheej insulating yog qhwv ib ncig ntawm tus neeg xyuas pib lossis txheej txheej ntxiv ntawm tus neeg xyuas pib (xws li refractory mica daim kab xev), thiab nws txoj haujlwm yog cais tus neeg xyuas pib los ntawm kev coj tus cwj pwm sib txuas thiab tiv thaiv tam sim no.
Cov khoom siv feem ntau siv rau extruded rwb thaiv tsev yog polyvinyl chloride (PVC), polyethylene (PE), cross-linked polyethylene (XLPE), tsis tshua muaj pa taws halogen-dawb nplaim retardant polyolefin (LSZH / HFFR), fluoroplastics, thermoplastic elasticity (TPE), silicone roj hmab (SR), ethylene propylene roj hmab (EPM / EPDM), thiab lwm yam.
3. Kev tiv thaiv
Muaj nuj nqi: Cov txheej thaiv thaiv siv hauv cov khoom siv hlau thiab cable yeej muaj ob lub ntsiab lus sib txawv.
Ua ntej, cov qauv ntawm cov xov hlau thiab cables uas xa cov hluav taws xob ntau zaus (xws li xov tooj cua zaus, hluav taws xob cables) lossis cov tsis muaj zog tam sim no (xws li cov teeb liab cables) hu ua electromagnetic shielding. Lub hom phiaj yog txhawm rau thaiv kev cuam tshuam ntawm cov hluav taws xob sab nraud, lossis tiv thaiv cov teeb liab siab zaus hauv cov kab hluav taws xob los ntawm kev cuam tshuam nrog lub ntiaj teb sab nraud, thiab tiv thaiv kev sib cuam tshuam ntawm cov hlau khub.
Qhov thib ob, cov qauv ntawm nruab nrab thiab siab voltage fais fab cables kom sib npaug ntawm qhov hluav taws xob ntawm tus neeg xyuas pib nto los yog qhov chaw insulating yog hu ua hluav taws xob tiv thaiv. Kev hais lus nruj me ntsis, kev tiv thaiv hluav taws xob tsis tas yuav tsum muaj kev ua haujlwm ntawm "shielding", tab sis tsuas yog ua lub luag haujlwm ntawm homogenizing hluav taws xob teb. Cov ntaub thaiv npog uas qhwv ib ncig ntawm lub cable feem ntau yog hauv av.
* Electromagnetic shielding qauv thiab cov ntaub ntawv
① Braided shielding: feem ntau yog siv liab qab tooj liab hlau, tin-plated tooj liab hlau, silver-plated tooj liab hlau, aluminium-magnesium alloy hlau, tooj liab ca daim kab xev, nyiaj-plated tooj liab ca daim kab xev, thiab lwm yam. khub los yog cable core;
② Copper daim kab xev shielding: siv mos tooj liab daim kab xev los npog los yog qhwv vertically sab nraum cov tub ntxhais cable;
③ Hlau daim kab xev tiv thaiv: siv aluminium ntawv nyiaj Mylar daim kab xev los yog tooj liab ntawv Mylar daim kab xev los qhwv ib ncig los yog vertically qhwv cov hlau khub los yog cable core;
④ Comprehensive shielding: Comprehensive application by different forms of shielding.Piv txwv li, qhwv (1-4) nyias tooj liab xov hlau vertically tom qab qhwv nrog txhuas ntawv nyiaj Mylar daim kab xev. Cov xov tooj tooj liab tuaj yeem ua rau muaj kev cuam tshuam ntawm kev tiv thaiv;
⑤ Sib cais tiv thaiv + zuag qhia tag nrho kev tiv thaiv: txhua tus khub xaim lossis pawg ntawm cov xov hlau yog thaiv los ntawm txhuas ntawv nyiaj Mylar daim kab xev lossis tooj liab hlau braided nyias, thiab tom qab ntawd tag nrho cov shielding qauv yog ntxiv tom qab cabling;
⑥ Wrapping shielding: Siv nyias tooj liab hlau, tooj liab ca daim kab xev, thiab lwm yam.
* Hluav taws xob tiv thaiv cov qauv thiab cov khoom siv
Semi-conductive shielding: Rau cov fais fab cables ntawm 6kV thiab saum toj no, ib tug nyias semi-conductive shielding txheej yog txuas rau tus neeg xyuas pib nto thiab insulating nto. Tus neeg xyuas pib shielding txheej yog extruded semi-conductive txheej. Tus neeg xyuas pib shielding nrog ib ntu ntawm 500mm² thiab siab dua yog feem ntau yog tsim los ntawm cov ntaub nplaum semi-conductive thiab extruded semi-conductive txheej. Lub insulating shielding txheej yog extruded qauv;
Copper wire wrapping: Cov kab tooj liab puag ncig yog siv rau co-directional wrapping, thiab txheej txheej yog thim rov qab thiab fastened nrog tooj liab daim kab xev los yog tooj liab hlau. Hom qauv no feem ntau yog siv rau hauv cov cables uas muaj qhov loj luv luv tam sim no, xws li qee qhov loj-section 35kV cables. ib leeg-core fais fab cable;
Copper daim kab xev wrapping: wrapping nrog mos tooj liab daim kab xev;
④ Corrugated aluminium sheath: Nws txais cov kub extrusion los yog txhuas daim kab xev ntev wrapping, vuam, embossing, thiab lwm yam.
4. Sheath
Lub luag haujlwm ntawm lub sheath yog los tiv thaiv lub cable, thiab cov tub ntxhais yog los tiv thaiv lub rwb thaiv tsev. Vim qhov kev hloov pauv ib puag ncig, kev siv thiab cov neeg siv khoom xav tau. Yog li ntawd, hom, cov qauv qauv thiab kev ua tau zoo ntawm cov qauv sheathing kuj sib txawv, uas tuaj yeem muab faib ua peb pawg:
Ib qho yog los tiv thaiv cov xwm txheej sab nraud, qee lub sijhawm cov neeg kho tshuab, thiab cov txheej txheem kev tiv thaiv dav dav uas yuav tsum muaj kev sib khi dav dav (xws li tiv thaiv kev nkag ntawm cov dej vapor thiab cov pa phem); Yog hais tias muaj ib tug loj mechanical sab nraud quab yuam los yog dais lub luj ntawm cable, yuav tsum muaj ib tug tiv thaiv txheej txheem ntawm cov hlau armor txheej; qhov thib peb yog cov txheej txheem tiv thaiv nrog cov kev cai tshwj xeeb.
Yog li ntawd, cov qauv ntawm cov hlau thiab cable feem ntau muab faib ua ob yam tseem ceeb: sheath (lub tes tsho) thiab sab nrauv sheath. Cov qauv ntawm cov ntaub qhwv sab hauv yog qhov yooj yim, thaum lub tsho sab nrauv suav nrog cov hlau armor txheej thiab nws cov txheej txheej sab hauv (kom tiv thaiv cov txheej txheem armor los ntawm kev puas tsuaj rau sab hauv sheath txheej), thiab cov sheath sab nrauv uas yog los tiv thaiv txheej armor, thiab lwm yam. Rau ntau yam tshwj xeeb uas yuav tsum tau muaj xws li nplaim taws, hluav taws kub, tiv thaiv kab (termite), anti-tsiaj (nas tom, noog peck), thiab lwm yam, lawv feem ntau yog daws los ntawm kev ntxiv ntau yam tshuaj rau cov txheej txheem; ob peb yuav tsum ntxiv cov khoom tsim nyog hauv cov txheej txheem sab nrauv..
Cov khoom siv feem ntau yog:
Polyvinyl chloride (PVC), polyethylene (PE), polyperfluoroethylene propylene (FEP), tsis tshua muaj pa taws halogen dawb nplaim retardant polyolefin (LSZH / HFFR), thermoplastic elastomer (TPE)
Post lub sij hawm: Dec-30-2022