Nyob rau hauv cov qauv tsim ntawm tshiabhluav taws-resistantkab,cross-linked polyethylene (XLPE) insulatedcables tau dav siv. Lawv nthuav tawm cov khoom siv hluav taws xob zoo heev, cov khoom siv kho tshuab, thiab kev ua haujlwm ib puag ncig. Cov yam ntxwv los ntawm kev ua haujlwm siab, muaj peev xwm kis tau tus mob loj, tsis muaj kev txwv, thiab yooj yim installation thiab txij nkawm, lawv sawv cev rau txoj kev loj hlob ntawm cov cables tshiab.
1. Cable Conductor Tsim
Conductor Structure and Characteristics: Tus neeg xyuas pib siv cov kiv cua zoo li tus thib ob ntawm cov qauv kev cog lus, siv ib qho (1 + 6 + 12 + 18 + 24) cov qauv tsis tu ncua. Nyob rau hauv tsis tu ncua stranding, lub hauv paus txheej muaj ib tug hlau, lub thib ob txheej muaj rau hlau, thiab tom ntej no cov khaubncaws sab nraud povtseg sib txawv los ntawm rau hlau. Cov txheej txheej sab nraud yog sab laug-tes tso tseg, thaum lwm cov khaubncaws sab nraud povtseg yog stranded nyob rau hauv qhov opposite direction. Cov xov hlau yog ncig thiab sib npaug ntawm txoj kab uas hla, ua kom muaj kev ruaj ntseg hauv cov qauv stranding. Compact qauv: Los ntawm compaction, tus neeg xyuas pib nto yuav du, tsis txhob concentration ntawm hluav taws xob teb. Ib txhij, nws tiv thaiv cov ntaub ntawv semi-conductive los ntawm kev nkag mus rau hauv cov tub ntxhais hlau thaum lub sij hawm extrusion rwb thaiv tsev, zoo tiv thaiv kom txhob ya raws nkag mus thiab kom ntseeg tau ib co degree ntawm yooj. Stranded conductors muaj qhov yooj yooj yim, kev ntseeg tau, thiab lub zog siab.
2. Cable rwb thaiv tsev txheejTsim
Lub luag haujlwm ntawm cov txheej txheej rwb thaiv tsev yog los xyuas kom meej lub cable kev ua tau zoo ntawm cov hluav taws xob thiab tiv thaiv qhov ntws ntawm tam sim no raws tus neeg xyuas pib los ntawm kev tawm sab nraud. Ib tug extrusion qauv yog ua hauj lwm, nrogCov khoom siv XLPExaiv rau rwb thaiv tsev. XLPE muaj kev ua tau zoo dua piv rau polyethylene, muaj cov khoom siv hluav taws xob zoo heev, muaj cov yam ntxwv ntawm cov dielectric tsawg (ε) thiab qis dielectric poob tangent (tgδ). Nws yog ib qho zoo tagnrho high-frequency rwb thaiv tsev cov ntaub ntawv. Nws qhov ntim tsis kam coefficient thiab kev sib tsoo lub zog tseem tsis tau hloov pauv txawm tias tom qab xya hnub ntawm kev nkag mus rau hauv dej. Li no, nws yog dav siv nyob rau hauv cable rwb thaiv tsev. Txawm li cas los, nws muaj ib tug tsawg melting point. Thaum siv nyob rau hauv cables, overcurrent los yog luv-circuit faults yuav ua rau ib tug nce nyob rau hauv qhov kub thiab txias, ua rau softening thiab deformation ntawm polyethylene, uas ua rau rwb thaiv tsev puas. Txhawm rau khaws cov khoom zoo ntawm polyethylene, nws dhau los ua kev sib txuas, txhim kho nws cov cua sov thiab tiv thaiv kev ntxhov siab ib puag ncig, ua cov khoom sib txuas polyethylene yog cov khoom siv rwb thaiv tsev zoo.
3. Cable Stranding thiab Wrapping Design
Lub hom phiaj ntawm cable stranding thiab wrapping yog los tiv thaiv lub rwb thaiv tsev, xyuas kom meej ib tug ruaj khov cable core, thiab tiv thaiv xoob rwb thaiv tsev thiab muab tub lim, xyuas kom meej lub roundness ntawm cov tub ntxhais. Covnplaim-retardant wrapping sivmuab tej yam nplaim-retardant zog.
Cov khoom siv rau Cable Stranding thiab Wrapping: Cov ntaub qhwv yog cov nplaim hluav taws kubnon-woven npuagtxoj siv sia, nrog lub zog tensile thiab nplaim taws retardancy Performance index tsis tsawg dua 55% oxygen index. Cov khoom siv muab tub lim siv cov nplaim hluav taws-retardant inorganic ntawv ropes (mineral ropes), uas yog mos, nrog rau qhov ntsuas oxygen tsis pub tsawg dua 30%. Cov kev xav tau rau cable stranding thiab wrapping muaj xws li xaiv qhov dav ntawm lub wrapping band raws li cov tub ntxhais txoj kab uas hla thiab lub kaum sab xis ntawm lub band, nrog rau qhov sib tshooj los yog qhov sib txawv ntawm lub wrapping. Kev taw qhia qhwv yog sab laug. High-flame-retardant txoj siv yog yuav tsum tau rau cov nplaim-retardant siv. Lub tshav kub tsis kam ntawm cov khoom siv muab tub lim yuav tsum sib haum nrog lub cable kev khiav hauj lwm kub, thiab nws muaj pes tsawg leeg yuav tsum tsis txhob cuam tshuam nrog covrwb thaiv tsev sheath khoom.Nws yuav tsum tau muab tshem tawm yam tsis muaj kev puas tsuaj rau lub rwb thaiv tsev tub ntxhais.
Post lub sij hawm: Dec-12-2023