Iintlobo ze-Sheath eziqhelekileyo kwiiCables ze-Optical kunye nokusebenza kwazo

Ukuqinisekisa ukuba i-optical cable core ikhuselwe kumonakalo owenziwe ngoomatshini, obushushu, ekhemikhali, kunye nowokufuma, kufuneka ixhotyiswe ngesheath okanye imigangatho eyongezelelweyo yangaphandle. La manyathelo alula ngokufanelekileyo ubomi benkonzo yeefiber optical.

Iishethi ezisetyenziswa ngokuqhelekileyo kwiintambo zokukhanya ziquka i-A-sheaths (i-aluminium-polyethylene bonded sheaths), i-S-sheaths (i-steel-polyethylene bonded sheaths), kunye ne-polyethylene sheaths. Kwiintambo zamanzi anzulu, iishethi zetsimbi ezitywiniweyo zidla ngokusetyenziswa.

Iishethi ze-polyethylene zenziwe nge-linear low-density, medium-density, okanyeubuninzi bezinto ezimnyama ze-polyethylene, ngokuhambelana nomgangatho we-GB/T15065. Umphezulu we-polyethylene sheath emnyama kufuneka igudiswe kwaye ifane, ingabi namaqamza abonakalayo, imingxuma, okanye iintanda. Xa isetyenziswe njenge-sheath yangaphandle, ubukhulu begama kufuneka bube yi-2.0 mm, kunye nobukhulu obuncinci be-1.6 mm, kunye nobukhulu obuphakathi kuyo nayiphi na i-cross-section akumele ibe ngaphantsi kwe-1.8 mm. Iipropati zoomatshini kunye nezomzimba we-sheath kufuneka zihlangabezane neemfuno ezichazwe kwi-YD / T907-1997, iThebhile 4.

I-A-sheath iquka umaleko wesithintelo sokufuma owenziwe ngobude obusongelwe kwaye bugqithetape aluminiyam egqunywe ngeplastiki, idibaniswe ne-polyethylene sheath emnyama ekhutshweyo. Iibhondi ze-polyethylene sheath kunye ne-tape edibeneyo kunye nemida edibeneyo ye-tape, enokuthi iqiniswe ngakumbi nge-adhesive xa kuyimfuneko. Ububanzi be-overlap ye-tape edibeneyo akufanele ibe ngaphantsi kwe-6 mm, okanye i-cable cores ene-diameters engaphantsi kwe-9.5 mm, kufuneka ibe ngaphantsi kwe-20% ye-core circumference. Ubunzima obuncinci be-polyethylene sheath yi-1.8 mm, kunye nobukhulu obuncinci be-1.5 mm, kunye nobukhulu obuphakathi obungekho ngaphantsi kwe-1.6 mm. Kudidi lwe-53 yemigangatho yangaphandle, ubukhulu begama ngu-1.0 mm, ubuncinci be-0.8 mm, kunye nobukhulu obuyi-0.9 mm. I-aluminiyam-iplastiki ye-composite tape kufuneka ihlangabezane nomgangatho we-YD / T723.2, kunye ne-aluminium tape ene-0.20 mm okanye i-0.15 mm (ubuncinci be-0.14 mm) kunye nobukhulu befilimu edibeneyo ye-0.05 mm.

Iiteyiphu ezimbalwa ezidityanisiweyo ezidityanisiweyo zivumelekile ngexesha lokwenziwa kweentambo, ngaphandle kokuba isithuba esidibeneyo singekho ngaphantsi kwe-350 m. La malungu kufuneka aqinisekise ukuqhubeka kombane kwaye abuyisele iplastiki edibeneyo. Amandla kwindawo edibeneyo kufuneka angabi ngaphantsi kwe-80% yamandla e-tape yokuqala.

I-S-sheath isebenzisa umaleko wesithintelo sokufuma owenziwe ngobude obusongelweyo kunye nethanki eligqunywe ngaphezulu.tape yentsimbi egqunywe ngeplastiki, idibaniswe ne-polyethylene sheath emnyama ekhutshweyo. Iibhondi ze-polyethylene sheath kunye ne-tape edibeneyo kunye nemida edibeneyo ye-tape, enokuthi iqiniswe nge-adhesive xa kuyimfuneko. I-tape edibeneyo edibeneyo kufuneka yenze isakhiwo esifana nesangqa emva kokusonga. Ububanzi be-overlap akufanele bube ngaphantsi kwe-6 mm, okanye kwii-cable cores ezinobubanzi obungaphantsi kwe-9.5 mm, kufuneka bungabi ngaphantsi kwe-20% ye-core circumference. Ubunzima obuncinci be-polyethylene sheath yi-1.8 mm, kunye nobukhulu obuncinci be-1.5 mm, kunye nobukhulu obuphakathi obungekho ngaphantsi kwe-1.6 mm. I-tape ye-steel-plastic composite kufuneka ihlangabezane nomgangatho we-YD / T723.3, kunye ne-tape yensimbi ene-0.15 mm ubukhulu (ubuncinci be-0.13 mm) kunye nobukhulu befilimu edibeneyo ye-0.05 mm.

Izihlanganisi zeteyiphu ezihlanganisiweyo zivunyelwe ngexesha lokwenziwa kwentambo, kunye nesithuba esincinci esiphakathi kwama-350 m. I-tape yensimbi kufuneka idibanise i-butt, iqinisekise ukuqhubeka kombane kunye nokubuyisela umgca odibeneyo. Amandla kwindawo edibeneyo kufuneka angabi ngaphantsi kwe-80% yamandla e-tape edibeneyo yokuqala.

Iteyiphu ye-aluminiyam, iteyiphu yentsimbi, kunye nemigangatho yentsimbi yesikrweqe esetyenziselwa izithintelo zokufuma kufuneka igcine ukuqhubeka kombane kubude bentambo. Kwiishethi eziboshiweyo (kubandakanywa noLuhlu lwama-53 lwangaphandle), amandla okuhluma phakathi kwe-aluminium okanye i-tape yensimbi kunye ne-polyethylene sheath, kunye namandla okukhupha phakathi kwemiphetho edibeneyo ye-aluminium okanye i-tape yensimbi, akufanele ibe ngaphantsi kwe-1.4 N / mm. Nangona kunjalo, xa i-water-blocking material okanye i-coating ifakwe phantsi kwe-aluminium okanye i-tape yensimbi, ukuqina kwe-peeling kwimida edibeneyo ayidingeki.

Esi sakhiwo sokukhusela esibanzi siqinisekisa ukuhlala kunye nokuthembeka kweentambo ze-optical kwiindawo ezahlukeneyo, ngokufanelekileyo ukuhlangabezana neemfuno zeenkqubo zonxibelelwano zanamhlanje.