Ukuqinisekisa ukuthi i-optical cable core ivikelekile emonakalweni wemishini, oshisayo, wamakhemikhali, kanye nomswakama, kufanele ifakwe i-sheath noma izendlalelo zangaphandle ezengeziwe. Lezi zinyathelo zandisa ngempumelelo impilo yesevisi ye-optical fibers.
Amashethi asetshenziswa kakhulu kumakhebula okukhanya afaka ama-A-sheaths (i-aluminium-polyethylene bonded sheaths), ama-S-sheaths (i-steel-polyethylene bonded sheaths), kanye namashethi e-polyethylene. Kumakhebula okubona ajulile emanzini, amashethi ensimbi avaliwe ngokuvamile asetshenziswa.
Ama-polyethylene sheaths enziwe ngomugqa ophansi, ophakathi nendawo, nomahigh-density black polyethylene impahla, ngokuvumelana nezinga le-GB/T15065. Ingaphezulu le-polyethylene sheath emnyama kufanele libe bushelelezi futhi lifane, lingabi namabhamuza abonakalayo, izimbobo, noma imifantu. Uma isetshenziswa njengegobolondo elingaphandle, ukujiya okuzisholo kufanele kube ngu-2.0 mm, nobuncane bokujiya obungu-1.6 mm, futhi ukujiya okumaphakathi kunoma iyiphi ingxenye ephambanayo akumele kube ngaphansi kuka-1.8 mm. Izakhiwo zomshini nezomzimba zesheath kufanele zihlangabezane nezidingo ezicaciswe ku-YD/T907-1997, Ithebula 4.
I-A-sheath iqukethe isendlalelo sokuvimbela umswakama esakhiwe ngobude obusongwe futhi obudlulelei-aluminium tape eyenziwe ngepulasitiki, kuhlanganiswe ne-polyethylene sheath emnyama ekhishwe. Izibopho ze-polyethylene sheath ne-tape eyinhlanganisela kanye nemiphetho egqagqene ye-tape, engaqiniswa ngokuqhubekayo nge-adhesive uma kudingeka. Ububanzi bokugqagqana kwetheyiphu eyinhlanganisela akumele bube ngaphansi kuka-6 mm, noma kuma-cable cores anobubanzi obungaphansi kuka-9.5 mm, akumele bungabi ngaphansi kuka-20% we-circumference ye-core. Ubukhulu obujwayelekile be-polyethylene sheath ngu-1.8 mm, nobuncane bokushuba obungu-1.5 mm, futhi ubukhulu obuphakathi bungekho ngaphansi kuka-1.6 mm. Ezingqimbeni zangaphandle Zohlobo 53, ukujiya okuzisholo kungu-1.0 mm, ukujiya okuncane kungu-0.8 mm, kanti ukujiya okumaphakathi kungu-0.9 mm. Itheyiphu eyinhlanganisela ye-aluminium-plastic kufanele ihlangabezane nezinga le-YD/T723.2, netheyiphu ye-aluminium enogqinsi oluvamile luka-0.20 mm noma 0.15 mm (ubuncane obungu-0.14 mm) kanye nogqinsi lwefilimu eyinhlanganisela engu-0.05 mm.
Amajoyinti etheyipu ayinhlanganisela ambalwa avunyelwe ngesikhathi sokukhiqiza ikhebula, inqobo nje uma ukuhlukana ngokuhlanganyela kungabi ngaphansi kwama-350 m. Lawa malungu kufanele aqinisekise ukuqhubeka kukagesi futhi abuyisele ungqimba lwepulasitiki oluhlanganisiwe. Amandla esihlanganisi akumele abe ngaphansi kuka-80% wamandla etheyiphu yokuqala.
I-S-sheath isebenzisa isendlalelo sokuvimbela umswakama esenziwe ngothayela ogoqwe ngobude futhi wagqagqana.i-plastic camera steel tape, kuhlanganiswe ne-polyethylene sheath emnyama ekhishwe. Izibopho ze-polyethylene sheath ne-tape ehlanganisiwe kanye nemiphetho egqagqene ye-tape, engaqiniswa nge-adhesive uma kunesidingo. Itheyiphu eyinhlanganisela kathayela kufanele yakhe isakhiwo esifana nendandatho ngemva kokusonga. Ububanzi bokugqagqana akumele bube ngaphansi kuka-6 mm, noma kuma-cable cores anobubanzi obungaphansi kuka-9.5 mm, akumele bungabi ngaphansi kuka-20% wesiyingi somongo. Ubukhulu obujwayelekile be-polyethylene sheath ngu-1.8 mm, nobuncane bokushuba obungu-1.5 mm, futhi ubukhulu obuphakathi bungekho ngaphansi kuka-1.6 mm. Itheyiphu eyinhlanganisela yensimbi-yepulasitiki kufanele ihlangabezane nezinga le-YD/T723.3, enetheyiphu yensimbi enogqinsi oluzisholo lwe-0.15 mm (ubuncane obungu-0.13 mm) kanye nogqinsi lwefilimu eyinhlanganisela engu-0.05 mm.
Amajoyinti etheyiphu ayinhlanganisela avunyelwe ngesikhathi sokukhiqiza amakhebula, anezikhala ezihlangene okungenani ezingama-350 m. I-tape yensimbi kufanele ihlanganiswe nezinqe, iqinisekise ukuqhubeka kukagesi nokubuyisela ungqimba oluyinhlanganisela. Amandla esihlanganisi akumele abe ngaphansi kuka-80% wamandla wetheyiphu eyinhlanganisela yasekuqaleni.
Itheyiphu ye-aluminium, itheyiphu yensimbi, nezendlalelo zezikhali zensimbi ezisetshenziselwa izithiyo zomswakama kufanele zigcine ukuqhubeka kukagesi ngobude bekhebula. Kumashethi ahlanganisiwe (okuhlanganisa izingqimba zangaphandle zohlobo lwama-53), amandla okuxebuka phakathi kwe-aluminium noma itheyiphu yensimbi kanye neshethi ye-polyethylene, kanye namandla okuxebuka phakathi kwemiphetho egqagqene ye-aluminium noma itheyiphu yensimbi, akufanele ibe ngaphansi kuka-1.4 N/mm. Kodwa-ke, lapho into evimbela amanzi noma i-coating isetshenziswa ngaphansi kwe-aluminium noma i-tape yensimbi, amandla okuxebula emaphethelweni agqagqene awadingeki.
Lesi sakhiwo sokuvikela esibanzi siqinisekisa ukuqina nokuthembeka kwezintambo ze-optical ezindaweni ezihlukahlukene, ukuhlangabezana ngokuphumelelayo nezidingo zezinhlelo zokuxhumana zesimanje.
Isikhathi sokuthumela: Jan-20-2025