Tshawb Nrhiav Cov Txheej Txheem Tsim Khoom ntawm European Standard Yas Coated Aluminium Daim Kab Xev Shielded Composite Sheath

Thaum lub cable system raug tso rau hauv av, hauv ib txoj kev hauv av lossis hauv dej uas yooj yim rau dej sib sau ua ke, txhawm rau tiv thaiv cov pa dej thiab dej kom tsis txhob nkag mus rau hauv cov txheej rwb thaiv tsev cable thiab xyuas kom meej tias lub cable siv tau ntev, lub cable yuav tsum tau txais cov qauv txheej tiv thaiv radial impervious, uas suav nrog lub plhaub hlau thiab lub plhaub hlau-yas sib xyaw. Cov hlau txhuas, tooj liab, txhuas thiab lwm yam khoom siv hlau feem ntau siv ua cov plhaub hlau rau cov cables; Ib daim kab xev hlau-yas sib xyaw thiab lub plhaub polyethylene tsim cov plhaub hlau-yas sib xyaw ntawm lub cable. Cov plhaub hlau-yas sib xyaw, tseem hu ua cov plhaub tiav, yog tus yam ntxwv los ntawm kev mos muag, yooj yim nqa, thiab dej permeability me dua li cov yas, roj hmab sheathing, haum rau cov chaw uas muaj kev ua haujlwm siab tiv thaiv dej, tab sis piv nrog cov plhaub hlau, cov plhaub hlau-yas sib xyaw tseem muaj qee qhov permeability.

Hauv cov qauv hluav taws xob nruab nrab European xws li HD 620 S2: 2009, NF C33-226: 2016, UNE 211620: 2020, daim kab xev yas coated txhuas ib sab yog siv los ua daim npog dej tsis nkag rau cov xov hluav taws xob. Cov txheej hlau ntawm ib sabdaim kab xev yas coated txhuasyog nyob rau hauv kev sib cuag ncaj qha nrog lub rwb thaiv tsev, thiab ua lub luag haujlwm ntawm lub hlau tiv thaiv tib lub sijhawm. Hauv European tus qauv, nws yog qhov tsim nyog los sim lub zog stripping ntawm cov yas coated txhuas daim kab xev thiab lub cable sheath thiab ua cov kev ntsuam xyuas corrosion tiv thaiv los ntsuas radial dej tsis kam ntawm lub cable; Tib lub sijhawm, nws tseem yog qhov tsim nyog los ntsuas DC tsis kam ntawm cov yas coated txhuas daim kab xev los ntsuas nws lub peev xwm los nqa luv luv circuit tam sim no.

1. Kev faib tawm ntawm cov yas coated txhuas daim kab xev
Raws li tus lej sib txawv ntawm cov yas zaj duab xis coated nrog cov khoom siv txhuas substrate, nws muaj peev xwm muab faib ua ob hom txheej txheem longitudinal: ob sab yas coated txhuas daim kab xev thiab ib sab yas coated txhuas daim kab xev.
Cov txheej tiv thaiv dej thiab noo noo ntawm cov xov hluav taws xob nruab nrab thiab qis voltage thiab cov xov hluav taws xob kho qhov muag uas muaj cov yas txheej txhuas ob sab thiab polyethylene, polyolefin thiab lwm yam sheathing ua lub luag haujlwm ntawm radial dej thiab noo noo. Cov yas txheej txhuas ib sab feem ntau yog siv rau kev tiv thaiv hlau ntawm cov xov hluav taws xob sib txuas lus.

Hauv qee cov qauv European, ntxiv rau kev siv ua lub hnab tiv thaiv dej tsis muaj dej, ib sab yas coated aluminium daim kab xev kuj tseem siv ua lub hlau tiv thaiv rau cov xov hluav taws xob nruab nrab, thiab daim kab xev aluminium tiv thaiv muaj qhov zoo dua piv rau kev tiv thaiv tooj liab.

2. Cov txheej txheem qhwv ntev ntawm cov yas coated txhuas daim kab xev
Cov txheej txheem qhwv ntev ntawm cov ntawv txhuas-yas sib xyaw yog hais txog cov txheej txheem ntawm kev hloov cov yas txheej txhuas los ntawm cov duab tiaj tus mus rau cov duab raj los ntawm ntau qhov kev hloov pauv pwm, thiab khi ob sab ntawm cov yas txheej txhuas daim kab xev. Ob sab ntawm cov yas txheej txhuas daim kab xev yog tiaj tus thiab du, cov npoo raug khi kom nruj, thiab tsis muaj txhuas-yas tev tawm.

Cov txheej txheem ntawm kev hloov cov yas coated aluminium daim kab xev los ntawm cov duab tiaj tus mus rau cov duab tubular tuaj yeem ua tiav los ntawm kev siv lub pwm qhwv ntev uas muaj lub pwm qhwv ntev, lub pwm ruaj khov kab thiab lub pwm ntsuas. Daim duab qhia txog kev ntws ntawm lub pwm qhwv ntev ntawm cov yas coated aluminium daim kab xev tau qhia hauv daim duab hauv qab no. Ob sab ntug ntawm cov yas coated aluminium daim kab xev tuaj yeem sib txuas los ntawm ob txoj hauv kev: kev sib txuas kub thiab kev sib txuas txias.

(1) Cov txheej txheem sib txuas kub
Cov txheej txheem thermal bonding yog siv cov yas txheej ntawm cov yas coated aluminium daim kab xev kom mos ntawm 70 ~ 90 ℃. Hauv cov txheej txheem deformation ntawm cov yas coated aluminium daim kab xev, cov yas txheej ntawm qhov sib koom ua ke ntawm cov yas coated aluminium daim kab xev yog cua sov siv rab phom cua kub lossis lub nplaim taws blowtorch, thiab ob sab ntawm cov yas coated aluminium daim kab xev yog sib txuas ua ke siv cov viscosity tom qab cov yas softening. Muab ob sab ntawm cov yas coated aluminium daim kab xev kom ruaj khov.

(2) Cov txheej txheem sib txuas txias
Cov txheej txheem sib txuas txias muab faib ua ob hom, ib qho yog ntxiv lub pwm ntev ruaj khov rau hauv nruab nrab ntawm lub caliper pwm thiab lub taub hau extruder, yog li ntawd cov yas coated aluminium daim kab xev tswj tau cov qauv tubular ruaj khov ua ntej nkag mus rau hauv lub taub hau ntawm extruder, qhov tawm ntawm lub pwm ruaj khov yog nyob ze rau qhov tawm ntawm lub extruder lub pwm core, thiab cov txhuas-yas composite tam sim ntawd nkag mus rau hauv lub extruder lub pwm core tom qab tshem tawm lub pwm ruaj khov. Lub siab extrusion ntawm cov khoom siv sheath khaws cov qauv tubular ntawm cov yas coated aluminium daim kab xev, thiab qhov kub siab ntawm cov yas extruded ua rau cov yas txheej ntawm cov yas coated aluminium daim kab xev kom ua tiav cov haujlwm sib txuas. Cov thev naus laus zis no yog qhov tsim nyog rau ob sab laminated yas coated aluminium daim kab xev, cov khoom siv tsim khoom yooj yim rau kev khiav lag luam, tab sis kev ua pwm yog qhov nyuaj heev, thiab cov yas coated aluminium daim kab xev yog yooj yim rau rebound.

Lwm txoj kev sib txuas txias yog kev siv cov nplaum kub yaj sib txuas, cov nplaum kub yaj uas yaj los ntawm lub tshuab extrusion hauv qhov ntev qhwv lub puab pwm txoj haujlwm nias rau ntawm ib sab ntawm ntug sab nraud ntawm daim kab xev yas txhuas, ob ntug txoj haujlwm ntawm daim kab xev yas txhuas los ntawm kab ruaj khov thiab sizing tuag tom qab cov nplaum kub yaj sib txuas. Cov thev naus laus zis no haum rau ob daim kab xev yas txhuas ob sab thiab daim kab xev yas txhuas ib sab. Nws cov khoom siv ua pwm thiab tsim khoom yooj yim rau kev ua haujlwm, tab sis nws cov txiaj ntsig sib txuas cuam tshuam los ntawm qhov zoo ntawm cov nplaum kub yaj.

Yuav kom ntseeg tau tias qhov kev ua haujlwm ntawm lub cable system muaj kev ntseeg siab, lub hlau tiv thaiv yuav tsum tau txuas nrog lub rwb thaiv tsev ntawm lub cable, yog li daim kab xev yas ib sab yuav tsum tau siv ua lub hlau tiv thaiv ntawm lub cable. Piv txwv li, cov txheej txheem kub sib txuas uas tau hais hauv daim ntawv no tsuas yog haum rau ob sab xwb.daim kab xev yas coated txhuas, thaum cov txheej txheem sib txuas txias siv cov nplaum kub yaj yog qhov tsim nyog dua rau cov yas coated txhuas ib sab.