Ukuchasana nokusingqongileyo kubalulekile kwizicelo zentambo zokuqinisekisa ukusebenza kwexesha elide, ukhuseleko kunye nokuthembeka. Iintambo zihlala zichanabeke kwiimeko ezinzima ezifana namanzi / ukufuma, iikhemikhali, imitha ye-UV, ubushushu obugqithisileyo, kunye noxinzelelo lomatshini. Ukukhetha izinto ezifanelekileyo kunye nokumelana nokusingqongileyo okufanelekileyo kubalulekile ukugcina ukusebenza kunye nokwandisa ubomi benkonzo yekhebula.
Eli candelo liphonononga iintlobo ezahlukeneyo zokuxhathisa kokusingqongileyo ezifunekayo kwiinkqubo ezahlukeneyo zeentambo.
Ijacket yangaphandle okanye i-sheath isebenza njengomgca wokuqala wokukhusela kwizinto ezisingqongileyo. Ngokuqhelekileyo kuvezwe kwiikhemikhali, amanzi, ukuguquguquka kwamaqondo obushushu, kunye nemitha ye-UV. Izinto eziphambili ezisetyenziselwa ijacket yangaphandle ziI-PVC (iPolyvinyl Chloride), PE (i-Polyethylene), kunyeI-LSZH (Umsi Ophantsi onguziro Halogen), ngalinye linikezela ngamanqanaba ahlukeneyo okuchasana ngokuxhomekeke kwiimfuno zesicelo.
1. Ukumelana neMichiza, i-Oyile, kunye ne-Hydrocarbon
Ngexesha lokufakela kunye nobomi bokusebenza kwentambo, ukuvezwa kweekhemikhali, i-oyile, okanye ii-hydrocarbons zingenzeka, mhlawumbi ngokuchitheka ngengozi okanye ukunxibelelana ngokuqhubekayo kwiindawo zemizi-mveliso. Ukuvezwa okunjalo kunokuthoba i-sheath yangaphandle, ekhokelela kwiintanda, ukudumba, okanye ukulahleka kweempawu zoomatshini.
Ukukhetha izinto ezinokumelana neekhemikhali ezinamandla kubalulekile ukuqinisekisa ukuba intambo igcina ingqibelelo, ukusebenza, kunye nokuthembeka kuyo yonke impilo yayo.
Iintlobo zokuSebenza kwiMichiza:
Imichiza yegesi: Iikhemikhali zegesi ngokubanzi zinokuphinda zisebenze kunye neepolymers njengoko zingangeni nzulu kwizinto eziphathekayo. Nangona kunjalo, iigesi ezisebenzayo ezifana neklorine okanye i-ozone zinokubangela ukuthotywa komphezulu kwaye zichaphazele kakhulu iipropathi zepolymer.
Imichiza yolwelo: Iikhemikhali zolwelo zibonakalisa umngcipheko omkhulu ngenxa yokukwazi kwazo ukusasazeka kwizinto eziphathekayo. Oku kunokukhokelela ekudumbeni, kwiplastiki, okanye ekuphenduleni kweekhemikhali zangaphakathi ngaphakathi kwe-polymer matrix, ukuphazamisa iimpawu zomatshini kunye nombane.
Ukusebenza kweMathiriyeli:
I-PE (i-Polyethylene): Inika ukuchasana okulungileyo kwiikhemikhali ezininzi kunye ne-hydrocarbons. Isebenza kakuhle kwiimeko zeekhemikhali ngokubanzi kodwa inokuba novelwano kwi-oxidizing agents.
I-PVC (i-Polyvinyl Chloride): Ibonisa ukuxhathisa okulungileyo kakhulu kwi-oyile, iikhemikhali, kunye nee-hydrocarbons, ngakumbi xa zenziwe kunye nezongezo ezifanelekileyo zokuxhathisa ioli.
I-LSZH (i-Low Smoke Zero Halogen): Ibonelela ngokumelana okuphakathi kwiikhemikhali kunye namafutha. Iikhompawundi ze-LSZH zenzelwe ngokukodwa ukhuseleko lomlilo (ukuvelisa umsi ophantsi kunye ne-toxicity ephantsi ngexesha lokutsha). Nangona kunjalo, ukuqulunqwa okukhethekileyo kwe-LSZH kunokufikelela ukuphuculwa kweoli kunye nokuchasana kweekhemikhali xa kufuneka.
2. Ukunyangwa kwamanzi kunye nokufuma
Iintambo zihlala zisesichengeni samanzi okanye kwindawo yokufuma okuphezulu ngexesha lofakelo nakubomi babo benkonzo. Ukuvezwa ixesha elide kubumanzi kunokukhokelela ekuthotyweni kwe-insulation, ukuhlwa kwezinto zetsimbi, kunye nokunciphisa ukusebenza kwentambo iyonke.
Ke ngoko, ukuxhathisa kwamanzi kuyipropathi ebaluleke kakhulu kwizicelo ezininzi zeentambo, ngakumbi ngaphandle, phantsi komhlaba, okanye kwindawo yaselwandle.
Phakathi kwezinto eziqhelekileyo zejacket, i-PE (i-Polyethylene) inikezela ukuchasana kwamanzi okugqwesileyo, okwenza kube yinto ekhethwayo kwizicelo ezifuna ukukhuselwa kwexesha elide ekungeneni komswakama.
I-Voltage ephantsi kunye ne-Medium Voltage izintambo ze-armored ezine-LSZH okanye i-PVC sheaths ngokubanzi azikhuthazwa ukuba zifakwe kwiindawo ezihlala emanzini ngokusisigxina, ezifana nomhlaba wodongwe okanye iindawo ezingaphantsi kwetafile yamanzi. Ngokwahlukileyo, i-PE sheaths ukumelana okukhulu nokufuduka kwamanzi ngokusebenzisa i-cable insulation. Ngenxa yoko, iintambo ze-PE-sheathed zifanelekile ngakumbi kwiimeko ezimanzi kwaye kunokwenzeka ukuba zifezekise ubomi bazo obupheleleyo.
Uyilo lweCable-Eqinile:
Ukufezekisa ukumelana nokwenyani kwamanzi kwiintambo, zimbini izikhuselo eziphambili ziqwalaselwa:
Ukhuseleko lwaManzi ngeRadi:
Iphunyezwe kusetyenziswa izinto ezifana nezingxobo zesinyithi okanye iiteyiphu zentsimbi/zentsimbi ezidityaniswe neepholima ezikhethekileyo.
Ukhuseleko lwaManzi olude:
Iphunyezwe ngokusebenzisa iiteyiphu zokuvala amanzi okanye umgubo othintela ukuhamba kwamanzi ngobude bentambo.
Ukhuseleko lokuNgena (IP) Ukulinganisa kunye neKlasi ye-AD7/AD8:
Ulwazi olucacileyo malunga neeklasi zokukhusela i-IP kunye nokulinganisa (ezifana ne-AD7 okanye i-AD8) ziya kwabelwana kwinqaku elahlukileyo.
3. Ukumelana ne-UV
Ukuqonda kunye nokukhetha ukuxhathisa okufanelekileyo kokusingqongileyo kwizicelo zeentambo kubalulekile ekuqinisekiseni ukusebenza kwexesha elide, ukhuseleko kunye nokuthembeka. Izinto ezifana nokuvezwa kweekhemikhali, ukungena kwamanzi, imitha ye-UV, kunye nokutshintsha kweqondo lokushisa kunokuchaphazela kakhulu ingqibelelo yekhebula ukuba ayiqwalaselwanga ngokufanelekileyo ngexesha lokukhetha izinto.
Ukukhetha izinto ezifanelekileyo ze-sheath yangaphandle-ingaba i-PVC, i-PE, okanye i-LSZH-esekelwe kwiimeko ezithile zokusingqongileyo kunokunyusa kakhulu ukuqina kwekhebula kunye nobomi benkonzo. Ukongezelela, ukuphumeza iindlela ezifanelekileyo zokuthintela amanzi kunye nokuqwalasela ukulinganiswa kwe-IP kuqinisa ngakumbi ukukhuselwa kwentambo kwiindawo ezifunayo.
Ngokuphonononga ngononophelo oku kuxhathisa kokusingqongileyo, iinkqubo zekhebula zinokuphuculwa ngcono kwizicelo ezijoliswe kuzo, ukunciphisa iimfuno zokugcina, ukunciphisa iingozi zokungaphumeleli, kunye nokuqinisekisa ukusebenza okuthembekileyo kuwo wonke umjikelo wabo wobomi obulindelekileyo.
Ixesha lokuposa: Apr-27-2025