Kuti chitoliro cha optical cable chitetezedwe ku kuwonongeka kwa makina, kutentha, mankhwala, ndi chinyezi, chiyenera kukhala ndi chivundikiro kapena zigawo zina zakunja. Njirazi zimawonjezera nthawi ya ntchito ya ulusi wa optical.
Ma sheath omwe amagwiritsidwa ntchito kwambiri mu zingwe zamagetsi ndi monga ma A-sheaths (ma sheaths olumikizidwa ndi aluminiyamu-polyethylene), ma S-sheaths (ma sheaths olumikizidwa ndi chitsulo-polyethylene), ndi ma polyethylene sheaths. Pa zingwe zamagetsi zakuya, ma sheaths otsekedwa ndi chitsulo nthawi zambiri amagwiritsidwa ntchito.
Ma polyethylene sheaths amapangidwa ndi mzere wochepa, wapakatikati, kapenazinthu za polyethylene zakuda zokhala ndi kuchuluka kwakukulu, mogwirizana ndi muyezo wa GB/T15065. Pamwamba pa chidebe chakuda cha polyethylene payenera kukhala kosalala komanso kofanana, kopanda thovu looneka, mabowo ang'onoang'ono, kapena ming'alu. Mukagwiritsidwa ntchito ngati chidebe chakunja, makulidwe ake ayenera kukhala 2.0 mm, ndi makulidwe osachepera 1.6 mm, ndipo makulidwe apakati pa gawo lililonse la mtanda sayenera kuchepera 1.8 mm. Kapangidwe ka makina ndi ka thupi ka chidebecho kayenera kukwaniritsa zofunikira zomwe zafotokozedwa mu YD/T907-1997, Table 4.
Chigoba cha A chimakhala ndi gawo lotchinga chinyezi lopangidwa ndi zokutidwa ndi kupindika kwa nthawi yayitalitepi ya aluminiyamu yokutidwa ndi pulasitiki, kuphatikiza ndi chivundikiro chakuda cha polyethylene chotulutsidwa. Chivundikiro cha polyethylene chimalumikizana ndi tepi yophatikizika ndi m'mphepete mwa tepiyo, zomwe zitha kuwonjezeredwa ndi guluu ngati pakufunika. M'lifupi mwake mwa tepi yophatikizika sikuyenera kukhala pansi pa 6 mm, kapena pazingwe za chingwe zokhala ndi mainchesi osakwana 9.5 mm, siziyenera kukhala pansi pa 20% ya kuzungulira kwa pakati. Kulemera kwake kwa chivundikiro cha polyethylene ndi 1.8 mm, ndi makulidwe osachepera 1.5 mm, ndi makulidwe apakati osakwana 1.6 mm. Pa zigawo zakunja za Type 53, makulidwe enieni ndi 1.0 mm, makulidwe osachepera ndi 0.8 mm, ndipo makulidwe apakati ndi 0.9 mm. Tepi yophatikizika ya aluminiyamu-pulasitiki iyenera kukwaniritsa muyezo wa YD/T723.2, ndi tepi yophatikizika yokhala ndi makulidwe ofanana a 0.20 mm kapena 0.15 mm (osachepera 0.14 mm) ndi makulidwe a filimu yophatikizika a 0.05 mm.
Ma tepi angapo ophatikizika amaloledwa popanga zingwe, bola ngati malo olumikiziranawo ali osachepera 350 m. Ma tepi ophatikizikawa ayenera kuonetsetsa kuti magetsi akuyenda bwino ndikubwezeretsa pulasitiki yophatikizika. Mphamvu ya tepi yophatikizika siyenera kuchepera 80% ya mphamvu ya tepi yoyambirira.
Chigoba cha S chimagwiritsa ntchito gawo lotchinga chinyezi lopangidwa ndi corrugated yokulungidwa ndi kupindika.tepi yachitsulo yokutidwa ndi pulasitiki, kuphatikiza ndi chivundikiro chakuda cha polyethylene chotulutsidwa. Chivundikiro cha polyethylene chimalumikizana ndi tepi yophatikizika ndi m'mphepete mwa tepiyo, zomwe zimatha kuwonjezeredwa ndi guluu ngati pakufunika. Tepi yophatikizika yopangidwa ndi corrugated iyenera kupanga kapangidwe kofanana ndi mphete mutakulunga. M'lifupi mwake simuyenera kupitirira 6 mm, kapena pazingwe za chingwe zokhala ndi mainchesi osakwana 9.5 mm, siziyenera kupitirira 20% ya kuzungulira kwa pakati. Kulemera kwake kwa chivundikiro cha polyethylene ndi 1.8 mm, ndi makulidwe osachepera 1.5 mm, ndi makulidwe apakati osachepera 1.6 mm. Tepi yophatikizika yachitsulo-pulasitiki iyenera kukwaniritsa muyezo wa YD/T723.3, ndi tepi yachitsulo yokhala ndi makulidwe ofanana a 0.15 mm (osachepera 0.13 mm) ndi makulidwe ofanana a filimu ya 0.05 mm.
Zolumikizira tepi zophatikizika zimaloledwa popanga zingwe, ndipo mtunda wocheperako wa zolumikizira ndi 350 m. Tepi yachitsulo iyenera kukhala yolumikizidwa ndi matako, kuonetsetsa kuti magetsi akupitilizabe ndikubwezeretsa gawo lophatikizika. Mphamvu ya cholumikizira siyenera kuchepera 80% ya mphamvu ya tepi yophatikizika yoyambirira.
Tepi ya aluminiyamu, tepi yachitsulo, ndi zigawo zachitsulo zotetezera chinyezi zomwe zimagwiritsidwa ntchito poteteza chinyezi ziyenera kusunga magetsi ogwirizana ndi kutalika kwa chingwecho. Pa zikopa zolumikizidwa (kuphatikiza zigawo zakunja za Mtundu 53), mphamvu yochotsa pakati pa tepi ya aluminiyamu kapena yachitsulo ndi chikopa cha polyethylene, komanso mphamvu yochotsa pakati pa m'mphepete mwa tepi ya aluminiyamu kapena yachitsulo, siziyenera kuchepera 1.4 N/mm. Komabe, pamene chinthu chotchinga madzi kapena chophimba chikugwiritsidwa ntchito pansi pa tepi ya aluminiyamu kapena yachitsulo, mphamvu yochotsa pakati pa m'mphepete mwa zikopa zolumikizira sikofunikira.
Kapangidwe ka chitetezo chokwanira kameneka kamatsimikizira kulimba ndi kudalirika kwa zingwe zamagetsi m'malo osiyanasiyana, zomwe zimakwaniritsa bwino zosowa za makina amakono olumikizirana.
Nthawi yotumizira: Januwale-20-2025