Ngokufanelekileyo khetha i-sheath yangaphandle yefiber optical.Kukho iintlobo ezi-3 zemibhobho ye-fiber optical sheath yangaphandle: umbhobho weplastiki imathiriyeli yendalo eyenziweyo, umbhobho wealuminiyam, umbhobho wentsimbi.Imibhobho yeplastiki inexabiso eliphantsi.Ukuze kuhlangatyezwane neemfuno zokukhuselwa kwe-UV ye-sheath yombhobho weplastiki, ubuncinane imigangatho emibini yesikrweqe kufuneka isetyenziswe.I-tube yeplastiki ye-OPGW inokumelana nokunyuka kwexesha elifutshane lobushushu elibangelwa yi-short-circuit current <180℃;ixabiso ityhubhu aluminiyam iphantsi.Ngenxa ye-impedans encinci ye-aluminium, inokunyusa amandla e-OPGW isikrweqe sokumelana ne-short-circuit current.I-Aluminiyam ityhubhu ye-OPGW inokumelana nokunyuka kwexesha elifutshane lobushushu elibangelwa yi-short-circuit current <300 ° C;ityhubhu yensimbi engenasici iyabiza.Nangona kunjalo, ngenxa yodonga lwetyhubhu ebhityileyo yetyhubhu yentsimbi, inani lemibhobho ye-optical fiber elayishwe kwityhubhu yensimbi engenasici phantsi kwemeko efanayo ye-cross-sectional ingaphezulu kwelo letyhubhu yeplastiki kunye netyhubhu ye-aluminium, ngoko ke iindleko zokubona undoqo awukho phezulu phantsi kwemeko ye-multi-core.Ukukwazi kombhobho wentsimbi OPGW ukumelana nokunyuka kobushushu bexesha elifutshane kunokufikelela kuma-450 ℃.Abasebenzisi banokukhetha i-sheath yangaphandle yefiber optical ngokufanelekileyo ngokwemiqathango ethile yeprojekthi.
Xa utshintsha ucingo lwasemhlabeni oludala ngentambo ye-OPGW, kufuneka kukhethwe i-OPGW eneempawu zoomatshini kunye nezombane njengocingo lwangaphambili oluphezu komhlaba.Oko kukuthi, iiparameters ze-OPGW ububanzi obungaphandle, ubunzima beyunithi nganye ubude, amandla okugqibela, imodyuli e-elastic, i-coefficient yokwandisa i-linear, i-short-circuit current kunye nezinye iiparameters zisondele kwiiparameters zocingo zomhlaba ezikhoyo, ukwenzela ukuba intloko ekhoyo yenqaba ayikwazi. zitshintshwe, kwaye isixa semisebenzi yokwakhiwa kwakhona sinokuncitshiswa.Inokuqinisekisa kwakhona umgama okhuselekileyo phakathi kwe-OPGW kunye nabaqhubi besigaba esikhoyo, kunye nokuqinisekisa ukusebenza ngokukhuselekileyo kwenkqubo yamandla.
Ufakelo kunye nokwakhiwa kwentambo ye-OPGW iyafana naleyo yeIntambo ye-ADSS, kunye ne-hardware esetyenzisiweyo iphantse ifane, kodwa indawo yokuxhoma iyahluka.Intambo ye-OPGW kufuneka ifakwe kwindawo yocingo olungaphezulu komhlaba.Isikhundla somdibaniso ophakathi womgca wentambo ye-optical kufuneka iwele kwinqaba yoxinzelelo ngokusebenzisa ipleyiti yokusabalalisa.
Ekukhetheni kunye nokusetyenziswa kwezi ntlobo zingentla zeentambo ze-optical, kuyafuneka kwakhona ukuba ubeke ingqalelo kula manqaku alandelayo: khetha i-sleeve-sleeve structure optical cable, kwaye ungasebenzisi i-tight-sleeve structure optical cable.Ngenxa yokuba i-fiber ingaba nobude obugqithisileyo obuthile kwi-tube ekhululekile, uluhlu lokulawula luphakathi kwe-0.0% kunye ne-1.0%, kwaye ixabiso eliqhelekileyo li-0.5% ukuya kwi-0.7%.Xa intambo ye-optical yoluliwe ngexesha lokwakhiwa okanye phantsi kwesenzo sobunzima kunye nomoya, nje ukuba ubude obude bentambo ye-optical ingaphakathi kuluhlu lobude obugqithisileyo, i-fiber optical inamandla okunyamezela kwaye ingayithwali ingcinezelo, ngaloo ndlela iqinisekisa ukuba umgangatho wothumelo lwefiber optical awuchatshazelwa kukuxinana.impembelelo yangaphandle.
1. Ukusebenzisa iteknoloji yokuvelisa i-tube ye-stainless steel stainless, ityhubhu izaliswe ngamanzi okuthintela iikhompawundi ukukhusela ngokufanelekileyo i-fiber optical;
2. Ngokulungisa uyilo lwefiber optical ubude obude kwityhubhu yensimbi engenasici kunye ne-twisting pitch ye-cable core, i-fiber optical kwintambo ye-optical inokufumana ubude obugqithisileyo besibini ukuqinisekisa ukuba i-fiber optical ayigxininisi xa Intambo ye-OPGW iphantsi koxinzelelo olukhulu lokusebenza;
3. Isakhiwo sihlangene, esinganciphisi kuphela umthwalo weqhwa kunye nomthwalo womoya, kodwa siqinisekisa ukuba ukushisa okwenziwa kwimeko yesiphaluka esifutshane kulula ukuchithwa;
4. I-diameter yangaphandle kunye ne-tensile unit weight ratio ye-OPGW cable eyenziwa yi-GL ifana neenkcukacha zocingo eziqhelekileyo, kwaye zingasetyenziselwa ukubuyisela ngokuthe ngqo indawo yocingo lwangaphambili ngaphandle kokutshintsha umgca okanye ukutshintshwa kwenqaba;
5. Ekubeni ngokusisiseko iyafana nocingo oluphezulu lwemveli, ukumiswa kwentambo ye-OPGW kulula kakhulu;