Pakupanga mawaya, kusankha zipangizo zotetezera kutentha kumakhudza mwachindunji magwiridwe antchito a chinthucho, moyo wa ntchito, komanso chitetezo cha ntchito. Zipangizo zotetezera kutentha zomwe zimagwiritsidwa ntchito kwambiri masiku ano ndi Polyvinyl Chloride (PVC), Polyethylene (PE), ndi Cross-linked Polyethylene (XLPE). Chifukwa cha kapangidwe kake ka mamolekyulu ndi mawonekedwe ake, chilichonse chimagwirizana ndi zochitika zosiyanasiyana zogwiritsidwa ntchito.
1. Kuteteza kwa Polyvinyl Chloride (PVC)
PVC ndi imodzi mwa zipangizo zotetezera mawaya zomwe zimagwiritsidwa ntchito kwambiri, zomwe zimadziwika kuti ndi zamphamvu kwambiri pamakina, zosavuta kukonza, komanso kukana kwambiri ma asidi ndi alkali. Mwa kuphatikiza zowonjezera zotetezera moto mu kapangidwe kake, kutetezera kwa PVC kumatha kukhala ndi mphamvu yoletsa moto, zomwe zimapangitsa kuti ikhale yoyenera mawaya ndi zingwe zogwiritsidwa ntchito nthawi zonse.
Kutengera kuuma kwake, PVC yosinthasintha imagwiritsidwa ntchito makamaka pakupanga zinthu zotetezera kutentha, pomwe PVC yolimba imagwiritsidwa ntchito kwambiri ngati chivundikiro cha chingwe. Tiyenera kudziwa kuti kutentha kovomerezeka kwa nthawi yayitali (kutentha kwa kondakitala) kwa zingwe zotetezedwa ndi PVC nthawi zambiri kumakhala 70 °C, ndipo PVC imatha kutulutsa utsi wambiri ikayikidwa pamoto.
2. Kuteteza kwa Polyethylene (PE)
Kuteteza kwa PE kumadziwika ndi mphamvu zake zamagetsi zabwino kwambiri, kuphatikizapo kusinthasintha kochepa kwa dielectric, kutayika kochepa kwa dielectric, komanso kukana kwakukulu kwa voliyumu, zomwe zimapangitsa kuti ikhale yoyenera kwambiri kutumiza chizindikiro cha ma frequency apamwamba. Kuphatikiza apo, PE imagwira ntchito bwino kwambiri kutentha kochepa komanso kukhazikika kwa mankhwala.
Zingwe zotetezedwa ndi PE zimagwiritsidwa ntchito kwambiri mu zingwe zolumikizirana deta, zingwe za coaxial, ndi zingwe zamagetsi zotsika mpaka zapakati. Kutentha kovomerezeka kwa nthawi yayitali (kutentha kwa conductor) kwa PE insulation nthawi zambiri kumakhala 70 °C.
3.Polyethylene yolumikizidwa ndi mtanda (XLPE)Kuteteza kutentha
XLPE ndi chinthu chotenthetsera kutentha chomwe chimapangidwa mwa kulumikiza kapangidwe ka molekyulu ya PE m'njira ya mankhwala kapena mwakuthupi kukhala netiweki ya magawo atatu. Njira yolumikizirana iyi imabweretsa kusintha kwakukulu pakugwira ntchito kwa zinthu.
Kuteteza kwa XLPE kumapereka:
Kutentha kovomerezeka kwa nthawi yayitali kwawonjezeka kufika pa 90 °C
Kukana kutentha kwafupipafupi mpaka 250 °C
Mphamvu yamakina yowonjezera komanso kukana bwino kupsinjika kwa chilengedwe
Nthawi yomweyo, XLPE imasunga mphamvu zamagetsi zabwino kwambiri za PE. Chifukwa chake, XLPE yakhala chinthu chotenthetsera chomwe chimakonda kwambiri pa zingwe zamagetsi zapakati ndi zapamwamba, zingwe zatsopano zamagetsi, komanso ntchito zamafakitale zomwe zimakhala ndi zovuta zogwirira ntchito.
4. Buku Lotsogolera Kusankha Mapulogalamu
PVC-zingwe zotetezedwa ndi insulation: Zotsika mtengo komanso zothandiza, zoyenera kugwiritsa ntchito mawaya amkati, zingwe zowongolera, ndi malo ena ouma.
Zingwe zotetezedwa ndi PE: Mphamvu zamagetsi zapamwamba kwambiri, zoyenera kulumikizana ndi deta, kutumiza ma signal, ndi kugwiritsa ntchito komwe kumafuna mphamvu yokhazikika.
Zingwe zotetezedwa ndi XLPE: Zingwe zogwira ntchito bwino kwambiri, zomwe zimalimbikitsidwa pa maukonde otumizira mphamvu, malo otentha kwambiri, chinyezi, komanso ntchito zamafakitale zomwe zimafunikira kudalirika kwambiri.
Mu ntchito zogwiritsira ntchito uinjiniya, kusankha zinthu zotetezera kutentha kuyenera kuganizira kutentha kwa ntchito, momwe chilengedwe chilili, magawo amagetsi, zofunikira pamakina, ndi bajeti ya ndalama. Chifukwa cha kupita patsogolo kwaukadaulo komanso kupanga kwakukulu, chiŵerengero chonse cha mtengo ndi magwiridwe antchito a zingwe za XLPE chikupitirirabe kukwera, zomwe zimapangitsa kuti ntchito zawo zikule.
Zambiri zaife
Monga kampani yopereka zinthu za chingwe, ONE WORLD yakhazikitsa mizere yonse yopangira zinthu zoteteza za PE, XLPE, ndi PVC, zomwe zimathandizidwa ndi zida zoyesera zapamwamba monga Melt Flow Rate Testers, Hot Set / Heat Elongation Testers, ndi High-Voltage Breakdown Test Systems, zomwe zimapereka maziko olimba a hardware kuti zitsimikizire khalidwe la malonda.
Takhazikitsa njira yokhazikika komanso yoyang'anira khalidwe labwino yomwe imayang'anira kusankha zinthu zopangira, kuwongolera kupanga, ndi kuwunika komaliza kwa zinthu. Kudzera mu njira zolondola zodyetsera ndi kuyang'anira pa intaneti, timaonetsetsa kuti zinthu zonse zikuyenda bwino komanso zimakhala zokhazikika pazigawo zonse zofunika. Zogulitsa zonse zimapakidwa pogwiritsa ntchito ma CD a aluminiyamu-pulasitiki osanyowa kuti zinthuzo zisungidwe bwino panthawi yosungira ndi kunyamula.
Zipangizo zathu zotetezera kutentha zimagwirizana ndi GB/T 15065 ndi miyezo ina yofunika mdziko muno. Tadzipereka kupereka njira zodalirika, zotetezeka, komanso zogwira ntchito bwino kwambiri zotumizira mphamvu, kupanga mphamvu zongowonjezwdwanso, uinjiniya wolumikizirana, komanso ntchito zosiyanasiyana zamafakitale.
Nthawi yotumizira: Januwale-30-2026