1. Ukuphuculwa kwezinto: Ukusuka kwi-PVC ukuya kwi-LSZH Cable Materials
Kwiindawo ezinkulu zikawonke-wonke ezifana neevenkile ezinkulu, iinkqubo zemetro, izikhululo zeenqwelo-moya, kunye nezibhedlele, iintambo azinaxanduva lokuhambisa umbane kuphela kodwa zikwasebenza njengomqolo obalulekileyo wokhuseleko xa kutsha.
Xa kuthelekiswa nezinto zekhebula zePVC zemveli, izinto zeLow Smoke Zero Halogen (LSZH) zimele uphuculo olukhulu ekusebenzeni kwezinto. Izinto zeLSZH azinazo i-halogen (okanye ziyahambelana nemida yomxholo we-halogen echazwe kwimigangatho efana ne-IEC 60754). Ngexesha lokutsha, azikhuphi iigesi ezirhabaxa kwaye ziyanciphisa kakhulu ukukhutshwa komsi. Ngokwembono yezinto eziphathekayo, oku kujongana ngempumelelo nemingcipheko yokhuseleko enxulumene nezinto zekhebula zesiqhelo ezine-halogen kwiimeko zomlilo.
Olu tshintsho ukusuka kwizinto zesiqhelo ezine-halogen ukuya kwizinto zekhebula ze-LSZH lwenze iintambo ze-LSZH zaba yindlela ephambili yophuhliso lweentambo zanamhlanje ezithintela umlilo kunye neenkqubo zeentambo ezimelana nomlilo.
2. Iingenelo zeNqanaba lokusebenza: Ukuthintela ilangatye, Umsi ophantsi, kunye neMechanism engena-Halogen
Ngokwembono yezinto zekhebula, iingenelo eziphambili zeentambo ezithintela ilangatye ze-LSZH zikwimiba emithathu: ukungakhawulezi komlilo, ukukhutshwa komsi omncinci, kunye nokusebenza okungenazo i-halogen.
Izixhobo zekhebula ze-LSZH zisebenzisa iinkqubo ezithintela umlilo ezingenayo i-halogen, ezifana nee-metal hydroxides okanye ii-flame retardants ezisekelwe kwi-phosphorus-nitrogen. Xa zichaphazeleka bubushushu, ezi nkqubo zifunxa ubushushu obuninzi, zinciphise iigesi ezivuthayo, kwaye zikhuthaza ukwakheka komaleko we-char oxineneyo, zithintela ngempumelelo ukwanda komlilo kwaye zinciphise ukuvuza.
Kwangaxeshanye, izinto ze-LSZH zivelisa umsi omncinci kakhulu kunezixhobo ze-PVC zemveli, nto leyo enceda ukugcina ukubonakala okuphezulu kwiimeko zomlilo kunye nokuphucula ukusebenza kakuhle kokuphuma. Ukongeza, njengoko zingenazo i-halogen, iimveliso zokutsha ikakhulu ngumphunga wamanzi kunye ne-carbon dioxide, ngaphandle kokukhupha iigesi ezinobuthi okanye ezirhabaxa, ngaloo ndlela kunciphisa umonakalo wesibini ebantwini nakwizixhobo.
Ezi mpawu zidibeneyo zakha isiseko sokhuseleko lweentambo ezithintela ilangatye ze-LSZH kwizicelo zeziseko zophuhliso zikarhulumente.
3. Izixhobo zeCable Key: Ukwakha Inkqubo yoKhuselo loMlilo eneZiteya ezininzi
Ngokwembono yoyilo lwesakhiwo seentambo, ukusebenza kweentambo ezithintela ilangatye ze-LSZH kuxhomekeke ekusetyenzisweni okudibeneyo kwezinto ezininzi zeentambo.
Ikhompawundi ye-LSZHisebenza njengesixhobo sesheya sangaphandle kwaye imisela ukusebenza kwentambo engatshisi kakhulu, engena-halogen, kunye nokusebenza kwayo okungatshisi mlilo. Iteyiphu ye-LSZH isetyenziselwa ukuphucula uzinzo lwesakhiwo kunye nokuphucula inqanaba lentambo elithintela umlilo ngokubanzi.
Iteyiphu ye-mica ye-Phlogopiteyinto ebalulekileyo yentambo engatshiyo. Phantsi kweemeko zomlilo (ngokuvamile malunga ne-750–950°C, kuxhomekeke kwimigangatho yovavanyo efana ne-IEC 60331 okanye i-BS 6387), inokugcina ubushushu bombane kangangexesha elithile, nto leyo eyenza isiseko sokusebenza kwentambo engatshiyo.
Iteyiphu yokuthintela amanzi kunye nentambo yokuthintela amanzi zisetyenziswa ukuphucula ukuthembeka kwexesha elide kwiindawo ezifumileyo nezinzima. Nangona zingasoloko zifuneka kwiindlela ezomileyo zangaphakathi, zisetyenziswa kakhulu kwiinkqubo zekhebula ezingaphantsi komhlaba, ezingcwatywe ngqo, kunye neenkqubo zekhebula zangaphandle.
Ngokusebenzisa ezi zinto kunye, inkqubo yokukhusela enemigangatho emininzi edibanisa ukubambezeleka komlilo, ukumelana nomlilo, umsi omncinci, kunye nokusebenza okungenazo i-halogen kunokufezekiswa, ukuhlangabezana neemfuno zemigangatho yamazwe ngamazwe.
4. Izicelo zoBunjineli kunye neemfuno zokusebenza kwezinto
Kwizicelo ezifana nezakhiwo ezinkulu zikawonke-wonke, iinkqubo zothutho lukaloliwe, kunye neziseko zophuhliso ezingaphantsi komhlaba, izixhobo zekhebula akufuneki zibonelele ngokhuseleko lomlilo kuphela kodwa ziqinisekise nokuthembeka kokusebenza ixesha elide.
Izixhobo zekhebula ze-LSZH ezisebenza kakuhle zihlala zibonelela ngeempawu ezintle zoomatshini (ezifana nokungagugi kunye nokumelana nempembelelo), ukumelana nokwaluphala okunamandla, kunye nokusebenza okuzinzileyo kokufakelwa kombane. Kwangaxeshanye, zibonelela ngokusebenza okuhle kokucubungula, zixhasa ukukhupha ngesantya esiphezulu kunye nemveliso enkulu. Ezi mpawu zimiselwa ngokuthe ngqo kukwenziwa kwezinto kunye nolawulo lwenkqubo yokuvelisa, zenza isiseko sokusebenza kwekhebula okuthembekileyo.
Ngokuphathelele ukuthobela imithetho, iintambo ze-LSZH zihlala zifuneka ukuze zihlangabezane nemigangatho elandelayo yamazwe ngamazwe:
Ukuthintela ilangatye: Uthotho lwe-IEC 60332
Uxinano lomsi: IEC 61034
Umxholo weHalogen: IEC 60754
Ukumelana nomlilo: IEC 60331 okanye iBS 6387
Njengoko izixhobo zekhebula ziqhubeka ziphucuka zisiya kukhuseleko oluphezulu kunye nokusebenza, ukusetyenziswa kwezinto zekhebula ze-LSZH, i-phhlogopite mica tape, kunye nezinto zokuthintela amanzi kulindeleke ukuba kwande ngakumbi, nto leyo edala amathuba amatsha kubaboneleli bezixhobo zekhebula kwimarike yehlabathi.
Ixesha lokuthumela: Epreli-30-2026