I-THW wire iyisici sezintambo zikagesi esisebenza ngezindlela eziningi esinobuhle bokumelana nezinga lokushisa eliphezulu, ukumelana nokugqokwa, amandla kagesi aphezulu, kanye nokufaka kalula.Intambo ye-THW isetshenziswa kakhulu emigqeni yezintambo zokuhlala, ezentengiselwano, ngaphezulu, nangaphansi komhlaba, futhi ukwethembeka nomnotho wayo sekungenye yezinto ezithandwayo zocingo ezimbonini zokwakha nezikagesi.
Yini i-THW wire
I-THW wire iwuhlobo lwekhebula likagesi lenhloso evamile elakhiwe ngokuyinhloko i-conductor eyenziwe ngethusi noma i-aluminium kanye nezinto ezifakwayo ezenziwe nge-polyvinyl chloride (PVC).I-THW imele ikhebula lasemoyeni elimelana nesimo sezulu sePlastiki.Lolu cingo alukwazi ukusetshenziselwa izinhlelo zokusabalalisa endlini kuphela kodwa futhi nezintambo zekhebula ezingaphezulu nangaphansi komhlaba, ezinohlu olubanzi lwezinhlelo zokusebenza.I-THW wire isetshenziswa kabanzi eNyakatho Melika nakwezinye izifunda futhi idume kakhulu.
Izici ze-THW wire
I-1.Ukumelana nokushisa okuphezulu, i-THW wire isebenzisa impahla ye-PVC njengesendlalelo sokumisa, okwenza ucingo lube nokumelana okuhle kakhulu kwezinga lokushisa eliphezulu futhi lungakwazi ukumelana nokushisa okuphezulu kokusebenza nomthwalo wamanje.Ngakho-ke, i-THW wire ifaneleka kakhulu ukusetshenziswa ezindaweni ezinezinga lokushisa eliphezulu.
I-2.Wear ukumelana, i-sheath yangaphandle ye-THW wire yenziwe ngezinto ze-PVC, ezingavikela ngokuphumelelayo ucingo ekugqokeni nasekulimaleni.Lolu cingo aluthintwa yizici zomzimba zangaphandle noma zamakhemikhali futhi lungagcina ukusebenza kwalo okuhle isikhathi eside.
I-3.Umthamo we-voltage ephezulu, i-THW wire inomthamo ophezulu wokuthwala amandla futhi ingasebenza ngokuphepha ngaphansi kwezimo eziphezulu zamandla kagesi.Lolu cingo lungakwazi ukumelana ne-voltage ephezulu engu-600V, engahlangabezana nezidingo zezinhlelo eziningi zokuhlala nezokuhweba.
I-4.Kulula ukuyifaka, i-THW wire iyavumelana nezimo, okwenza kube lula kakhulu ukuyifaka kanye nocingo.Ngenxa yokunwebeka nokuvumelana nezimo, intambo ye-THW ingagotshwa kalula futhi isonteke, okwenza ukufakwa kube lula kakhulu.
Ukusetshenziswa kwentambo ye-THW
1.Ukusetshenziswa kwezindawo zokuhlala nezohwebo, i-THW wire iyingxenye eyinhloko yamasekhethi angaphakathi nezinhlelo zokusabalalisa zezakhiwo, ezivame ukusetshenziselwa ukunikezwa kwamandla ezinto zikagesi ezihlukahlukene zasendlini njengezibani, amasokhethi, amathelevishini, nama-air conditioner.
Imigqa yekhebula ye-2.Overhead, ngenxa yokumelana nokushisa okuphezulu kwe-THW nokumelana nokugqoka, ingakwazi ukumelana nezimo zezulu ezimbi kanye nomthelela wangaphandle kwemvelo, ngakho isetshenziswa kakhulu emigqeni yekhebula ephezulu.
3.Imigqa yekhebula engaphansi komhlaba, ungqimba lokufakelwa kwentambo ye-THW lungavimbela ucingo ukuthi lungathintani namanzi noma ezinye izindawo zangaphandle, ngakho-ke luvame ukusetshenziswa emigqeni yekhebula engaphansi komhlaba.Le ntambo ingamelana nomswakama kanye nezindawo eziswakeme futhi ingavikela ucingo ekugqwaleni nasekugugekeni.
I-THW wire VS.Intambo ye-THWN
Intambo ye-THW, i-THHN wire kanye ne-THWN yonke imikhiqizo eyisisekelo ye-single core wire.Izintambo ze-THW kanye nezintambo ze-THWN zifana kakhulu ngokubukeka nezinto zokwakha, kodwa umehluko owodwa obalulekile phakathi kwazo umehluko wezinto zokufakelwa kanye nejazi.Izintambo ze-THW zisebenzisa ukufakwa kwe-polyvinyl chloride (PVC), kuyilapho izintambo ze-THWN zisebenzisa i-thermoplastic polyethylene (XLPE) yezinga eliphezulu.Uma iqhathaniswa ne-PVC, i-XLPE iphakeme ngokusebenza, inokumelana okungcono namanzi nokumelana nezinga lokushisa.Ngokuvamile, izinga lokushisa elisebenzayo le-THWN wire lingafinyelela ku-90°C, kuyilapho elocingo lwe-THW lingama-75°C kuphela, okusho ukuthi, intambo ye-THWN inokumelana nokushisa okuqinile.
I-THW wire VS.THHN ucingo
Nakuba zombili izintambo ze-THW kanye nezintambo ze-THHN zakhiwe izintambo nezingqimba zokwahlukanisa, umehluko wezinto ezifakwayo uholela ekusebenzeni kwazo okuhlukile kwezinye izici.Izintambo ze-THW zisebenzisa i-polyvinyl chloride (PVC) impahla, kuyilapho izintambo ze-THHN zisebenzisa izinga lokushisa eliphezulu i-epoxy acrylic resin (THERMOPLASTIC HIGH HEAT RESISTANT NYLON), ehlala izinzile emazingeni okushisa aphezulu.Ngaphezu kwalokho, izintambo ze-THW ngokuvamile zithambile kunezintambo ze-THHN ukuze zivumelane nezimo zohlelo lokusebenza eziningi.
Izintambo ze-THW kanye nezintambo ze-THHN nazo ziyahluka ekutholeni izitifiketi.Kokubili i-UL ne-CSA, izindikimba ezimbili ezinkulu zesitifiketi sokulinganisa e-United States nase-Canada, zihlinzeka ngesitifiketi sezintambo ze-THW ne-THHN.Kodwa-ke, izindlela zokuthola izitifiketi zazo zombili zihluke kancane.Intambo ye-THW idinga ukuqinisekiswa kwe-UL, kuyilapho i-THHN idinga ukuhlangabezana nezimfuneko zombili izikhungo zesitifiketi ze-UL ne-CSA.
Ukufingqa, i-THW wire iwucingo olusetshenziswa kakhulu, futhi ukwethembeka nomnotho wayo sekungenye yezinto ezikhethwayo zocingo embonini yezokwakha kanye nemboni kagesi.Intambo ye-THW isebenza kahle kakhulu futhi ingahlangabezana nezidingo zezikhathi ezahlukahlukene, ilethe lula nokuphepha empilweni yethu nasembonini.
Isikhathi sokuthumela: Jul-15-2023