Hom kev siv cable accessories

Thaum tshav kub kub shrink hom
Cov khoom siv feem ntau siv rau nruab nrab thiab tsis tshua muaj hluav taws xob cable accessories yog cov khoom siv cua sov, cov khoom siv prefabricated, thiab cov khoom siv txias txias. Lawv muaj cov yam ntxwv hauv qab no:
Cov ntaub ntawv siv feem ntau yog sib xyaw ntawm ntau yam khoom siv xws li polyethylene, ethylene-vinyl acetate (EVA) thiab ethylene propylene roj hmab. Hom khoom no tsuas yog siv cov hlab ntsha kev ntxhov siab los daws cov teeb meem kev ntxhov siab hauv hluav taws xob. Ntawd yog, txoj kev tswj xyuas parameter yog siv los txo cov hluav taws xob hauv hluav taws xob kev ntxhov siab. Qhov zoo tshaj plaws yog lub teeb yuag, yooj yim installation, kev ua haujlwm zoo, thiab tus nqi qis. Lub raj muaj kev ntxhov siab yog lub raj cua sov uas muaj cov hluav taws xob tshwj xeeb nrog qhov nruab nrab ntim resistivity (1010-1012Ωcm) thiab loj dielectric tas li (20--25). Cov kev ntsuas hluav taws xob yog siv los yuam kom muaj kev ntxhov siab ntawm cable rwb thaiv tsev tiv thaiv kev tawg kom tawg mus rau hauv ib qho kev faib tawm ntau dua raws li txoj kev ntxhov siab. Cov tshuab no feem ntau yog siv hauv cov khoom siv cable ntawm 35kV thiab hauv qab no. Vim tias lub raj muaj kev ntxhov siab yuav ua kom sov thiab tsis tuaj yeem ua haujlwm ruaj khov thaum qhov hluav taws xob siab siab.
Cov teeb meem tseem ceeb hauv kev siv nws yog:
Txhawm rau kom ntseeg tau tias qhov ntsuas hluav taws xob tsis zoo ntawm lub raj kev ntxhov siab yuav tsum ncav cuag qhov tseem ceeb hauv cov qauv saum toj no kom ua haujlwm tau zoo. Ib qho ntxiv, kev saib xyuas yuav tsum tau them rau cov cua sib txawv ntawm cov cable rwb thaiv tsev semi-grease los silicone roj kom tshem tawm cov roj thiab ua tiav lub hom phiaj ntawm kev txo cov kev tawm ib nrab. Hla-txuas cables yuav txo qis heev thaum lub sijhawm ua haujlwm vim kev kho tsis zoo hauv kev ntxhov siab. Yog li ntawd, thaum txhim kho cov khoom siv, yuav tsum tau them nyiaj rau qhov sib tshooj ntawm txoj hlua kev ntxhov siab thiab cov ntaub thaiv npog los ntawm tsawg kawg 20mm los tiv thaiv cov raj kev ntxhov siab los ntawm kev tshem tawm ntawm cov ntaub thaiv npog thaum lub sij hawm shrinkage. Thaum tshav kub kub shrink accessories muaj tsawg elasticity thiab tej zaum yuav ua rau huab cua sib txawv ntawm lub interface thaum thermal expansion thiab contraction thaum lub sij hawm ua hauj lwm. Yog li ntawd, sealing tshuab yog ib qho tseem ceeb heev kom tsis txhob ya raws los ntawm kev nkag.
Prefabricated
Cov ntaub ntawv siv feem ntau yog silicone roj hmab lossis ethylene propylene roj hmab. Txoj kev tseem ceeb ntawm cov qauv geometric, uas yog lub cone kev ntxhov siab, yog siv los daws cov teeb meem kev ntxhov siab. Nws cov txiaj ntsig tseem ceeb yog cov khoom siv zoo heev, kev yooj yim thiab nrawm dua, kev teeb tsa tsis muaj cua sov, zoo elasticity, thiab kev ua haujlwm zoo heev. Daim ntawv tseem ceeb siv rau nruab nrab, qis thiab siab voltage cables. Qhov tsis zoo yog tias sab nraud ntawm cov kab hluav taws xob rwb thaiv tsev txheej yuav tsum tau siab. Kev cuam tshuam feem ntau yog 2 mus rau 5 hli (uas yog, sab nraud txoj kab uas hla ntawm lub rwb thaiv tsev cable yuav tsum loj dua li lub taub sab hauv ntawm cov khoom siv cable los ntawm 2 mus rau 5 hli). Yog tias qhov cuam tshuam tsawg dhau, cov khoom siv cable yuav ua tsis tiav; Yog tias qhov cuam tshuam loj dhau, cov khoom siv cable yog qhov nyuaj heev rau nruab (cov txheej txheem siab yuav tsum tau ua). Qhov teeb meem tshwj xeeb yog qhov tseem ceeb ntawm kev sib koom ua ke nruab nrab, uas tsis tsuas yog tsis yooj yim rau nruab, tab sis kuj feem ntau dhau los ua qhov tsis ua tiav. Tsis tas li ntawd, tus nqi kuj tseem kim. Cov teeb meem tseem ceeb hauv kev siv nws yog:
Qhov luaj li cas ntawm cov khoom siv yuav tsum sib phim qhov loj ntawm lub cable yuav tsum tau muab tso rau hauv raws li qhov yuav tsum tau ua. Tsis tas li ntawd, silicone roj kuj yuav tsum tau lubricate lub interface kom yooj yim installation.
Txias shrink hom
Txias shrink hom cable accessories yog ua los ntawm cov ntaub ntawv elastomeric (feem ntau yog siv yog silicone roj hmab thiab ethylene propylene roj hmab) uas yog txhaj tshuaj vulcanized nyob rau hauv lub Hoobkas, thiab ces nthuav thiab lined nrog yas kauv txhawb los tsim ntau yam cable accessories. Thaum lub sij hawm installation ntawm qhov chaw, cov khoom ua ntej nthuav dav yog muab tso rau ntawm cov kab kho kab mob los yog cov pob qij txha, thiab cov khoom siv hauv cov yas muab kauv (kev txhawb nqa) raug rub tawm thiab nias tawm tsam cable rwb thaiv tsev los tsim cov khoom siv cable. Vim nws tso siab rau elastic retraction quab yuam ntawm chav tsev kub, es tsis yog tshav kub shrink cable accessories uas yuav tsum tau rhuab thiab shrunk los ntawm hluav taws, nws yog feem ntau hu ua txias shrink cable accessories. Thaum ntxov txias shrink cable davhlau ya nyob twg hau tsuas yog siv silicone roj hmab txias shrink qhov chaw rau ntxiv rwb thaiv tsev, thiab hluav taws xob kho mob tseem siv kev nyuaj siab cone hom los yog kev nyuaj siab siv wrapping hom. Cold shrink stress control tubes feem ntau yog siv, thiab qhov voltage theem ntawm 10kv txog 35kv. Cold shrink cable joints, 1kv qib siv cov khaub thuas shrink rwb thaiv tsev raj rau kev txhim kho rwb thaiv tsev, thiab 10kv theem siv sib koom ua ke txias shrink rwb thaiv tsev qhov chaw nrog sab hauv thiab sab nrauv shielding txheej. Txias shrink ceg tes tsho yog siv ntawm rab rawg ntawm peb-core cable terminals.
Txias shrink cable accessories muaj qhov zoo ntawm qhov me me, kev ua haujlwm yooj yim thiab ceev, tsis xav tau cov cuab yeej tshwj xeeb, daim ntawv thov dav thiab ob peb yam khoom tshwj xeeb. Piv nrog rau cov khoom siv hluav taws xob kub hnyiab, lawv tsis tas yuav tsum tau ua kom sov los ntawm hluav taws, thiab txav los yog khoov tom qab kev teeb tsa yuav tsis ua rau muaj kev pheej hmoo ntawm kev sib txuas hauv nruab nrab ntawm cov khoom siv xws li cua sov shrink cable accessories (vim txias shrink cable accessories cia siab rau elastic compression quab yuam. ). Piv nrog prefabricated cable accessories, txawm hais tias ob leeg cia siab rau elastic compression quab yuam los xyuas kom meej cov yam ntxwv ntawm lub interface, lawv tsis sib haum mus rau lub cable cross-section ib los ntawm ib tug zoo li prefabricated cable accessories, thiab muaj ntau yam specifications.
Nws yuav tsum tau muab sau tseg tias ua ntej yuav muab ntsia rau ntawm lub cable, cov khoom ntawm prefabricated cable accessories yog tsis nruj, thaum lub txias shrink cable accessories nyob rau hauv siab nro. Yog li ntawd, nws yuav tsum tau xyuas kom meej tias thaum lub sij hawm cia, lub txias shrink Cheebtsam yuav tsum tsis txhob muaj kev ruaj ntseg deformation los yog elastic kev nyuaj siab so, txwv tsis pub, tom qab muab ntsia rau ntawm lub cable, nws yuav tsis tau guaranteed muaj txaus elastic compression quab yuam, thiab yog li ntawd. zoo interface yam ntxwv tsis tuaj yeem lav.