Intambo ye-THW yinto yombane eguquguqukayo enezibonelelo zokuxhathisa amaqondo obushushu aphezulu, ukumelana nokuguguleka, amandla aphezulu ombane, kunye nokufakelwa okulula. Intambo ye-THW isetyenziswa kakhulu kwiintambo zekhebula zokuhlala, zorhwebo, ezisetyenziswa ngaphezulu, kunye nezingaphantsi komhlaba, kwaye ukuthembeka kwayo kunye noqoqosho lwayo kuye kwaba yenye yezinto ezikhethwayo kwiintambo kumashishini okwakha nawombane.
Yintoni intambo ye-THW
Intambo ye-THW luhlobo lwentambo yombane esetyenziswa ngokubanzi eyenziwe ikakhulu yi-conductor eyenziwe ngobhedu okanye i-aluminium kunye nezinto zokukhusela ezenziwe nge-polyvinyl chloride (PVC). I-THW imele iPlastics. Intambo ye-Aerial engangenisi bushushu obuphezulu. Le ntambo ingasetyenziswa kungekuphela nje kwiinkqubo zokusasaza ngaphakathi kodwa nakwiintambo zentambo eziphezulu nezingaphantsi komhlaba, ezinoluhlu olubanzi lwezicelo. Intambo ye-THW isetyenziswa kakhulu eMntla Melika nakwezinye iindawo kwaye ithandwa kakhulu.
Iimpawu zentambo ye-THW
1. Ukumelana nobushushu obuphezulu, ucingo lwe-THW lusebenzisa izinto ze-PVC njengomaleko wokukhusela, nto leyo eyenza ucingo lube nokumelana nobushushu obuphezulu kwaye lukwazi ukumelana nobushushu obuphezulu bokusebenza kunye nomthwalo wangoku. Ke ngoko, ucingo lwe-THW lufanelekile kakhulu ukusetyenziswa kwiindawo ezinobushushu obuphezulu.
2. Ngenxa yokumelana nokuguguleka, i-sheath yangaphandle ye-THW wire yenziwe ngezinto ze-PVC, ezinokukhusela ngempumelelo i-wire ekugugulekeni nasekumonakaleni. Le wire ayichaphazeleki zizinto zangaphandle zomzimba okanye zeekhemikhali kwaye inokugcina ukusebenza kwayo kakuhle ixesha elide.
3.Umthamo we-voltage ephezulu, ucingo lwe-THW lunomthamo we-voltage ephezulu kwaye lunokusebenza ngokukhuselekileyo phantsi kweemeko ze-voltage ephezulu. Olu cingo lunokumelana ne-voltage ephezulu ye-600V, enokwanelisa iimfuno zezicelo ezininzi zokuhlala kunye nezorhwebo.
4. Kulula ukuyifaka, ucingo lwe-THW luguquguquka kancinci, nto leyo eyenza kube lula kakhulu ukuyifaka kunye nocingo. Ngenxa yokuguquguquka kwayo kunye nokuguquguquka kwayo, ucingo lwe-THW lunokugobeka kwaye lujijeke lula, nto leyo eyenza ukufakwa kube lula ngakumbi.
Ukusetyenziswa kwentambo ye-THW
1. Ukusetyenziswa kwiindawo zokuhlala nezorhwebo, ucingo lwe-THW yeyona nto iphambili kwiisekethe zangaphakathi kunye neenkqubo zokusasazwa kwezakhiwo, ezisetyenziswa kakhulu ekunikezelweni kombane kwizixhobo ezahlukeneyo zasekhaya ezifana nezibane, izisekelo, oomabonakude, kunye nee-air conditioner.
2.Iintambo zentambo eziphezu kwentloko, ngenxa yokumelana nobushushu obuphezulu kunye nokumelana nokuguguleka kwentambo ye-THW, inokumelana neemeko zemozulu ezigqithisileyo kunye nempembelelo yangaphandle kokusingqongileyo, ngoko ke isetyenziswa kakhulu kwiintambo zentambo eziphezu kwentloko.
3.Iintambo zekhebula ezingaphantsi komhlaba, umaleko wokukhusela ucingo lwe-THW unokuthintela ucingo ukuba lungadibani namanzi okanye nezinye iindawo zangaphandle, ngoko ke lusetyenziswa rhoqo kwiintambo zekhebula ezingaphantsi komhlaba. Olu cingo lunokumelana nokufuma kunye neendawo ezimanzi kwaye lunokukhusela ucingo ekuboleni nasekugugeni.
Ucingo lwe-THW vs. Ucingo lwe-THWN
Intambo ye-THW, intambo ye-THHN kunye nentambo ye-THWN zonke ziimveliso ezisisiseko zentambo enye engundoqo. Intambo ye-THW kunye neentambo ze-THWN zifana kakhulu ngembonakalo nangezinto ezisetyenziswayo, kodwa umahluko omkhulu phakathi kwazo ngumahluko kwizixhobo zokwambathisa kunye nejakethi. Intambo ze-THW zisebenzisa i-polyvinyl chloride (PVC) insulation, ngelixa intambo ze-THWN zisebenzisa i-thermoplastic polyethylene (XLPE) insulation yodidi oluphezulu. Xa kuthelekiswa ne-PVC, i-XLPE ingcono ekusebenzeni, inokumelana namanzi okungcono kunye nokumelana nobushushu. Ngokwesiqhelo, ubushushu bokusebenza bentambo ye-THWN bunokufikelela kwi-90°C, ngelixa obo bentambo ye-THW buyi-75°C kuphela, oko kukuthi, intambo ye-THWN inokumelana nobushushu okunamandla.
Ucingo lwe-THW vs. Ucingo lwe-THHN
Nangona zombini iingcingo ze-THW kunye neengcingo ze-THHN zenziwe ngeengcingo kunye neengqimba zokufaka ubushushu, umahluko kwizinto zokufaka ubushushu ukhokelela ekusebenzeni kwazo okwahlukileyo kwezinye iinkalo. Iingcingo ze-THW zisebenzisa izinto ze-polyvinyl chloride (PVC), ngelixa iingcingo ze-THHN zisebenzisa i-epoxy acrylic resin yobushushu obuphezulu (i-THERMOPLASTIC HIGH HEAT RESISTANT NYLON), ehlala izinzile kumaqondo obushushu aphezulu. Ukongeza, iingcingo ze-THW zihlala zithambile kuneengcingo ze-THHN ukuze zilungele iimeko ezininzi zokusetyenziswa.
Iintambo ze-THW kunye neentambo ze-THHN nazo zahlukile kwisiqinisekiso. Zombini i-UL kunye ne-CSA, imibutho emibini ephambili yokuqinisekisa umgangatho e-United States naseKhanada, zibonelela ngesiqinisekiso seentambo ze-THW kunye ne-THHN. Nangona kunjalo, imiqathango yokuqinisekisa kwezi zimbini yahlukile kancinci. Intambo ye-THW kufuneka iqinisekiswe yi-UL, ngelixa intambo ye-THHN kufuneka ihlangabezane neemfuno zeearhente zokuqinisekisa ze-UL kunye ne-CSA.
Ngamafutshane, ucingo lwe-THW lusetyenziswa kakhulu kwiintambo, kwaye ukuthembeka kwalo kunye noqoqosho lwalo luye lwaba lolunye lwezixhobo zentambo ezikhethwayo kushishino lokwakha nakwishishini lombane. Ucingo lwe-THW lusebenza kakuhle kakhulu kwaye lunokuhlangabezana neemfuno zeziganeko ezahlukeneyo, nto leyo ebangela ukuba kube lula kwaye kukhuseleke kubomi bethu nakwishishini lethu.
Ixesha lokuthumela: Julayi-15-2023