Monga tonse tikudziwa, Pali magawo angapo omwe amapanga chingwe cha fiber.Gawo lililonse kuyambira pakuvala, kenako zokutira, membala wamphamvu ndipo pomaliza jekete lakunja limakutidwa pamwamba pa mnzake kuti ateteze komansokutchinga makamaka ma conductor ndi fiber core.Koposa zonsezi, jekete lakunja ndilo gawo loyamba la chitetezo ndipo limawonjezera mphamvu ku ulusi kuti upirire zinthu zosiyanasiyana monga moto, chinyezi, mankhwala, ndi kupsinjika maganizo.pa kukhazikitsa ndi ntchito.
Ma jekete akunja a chingwe cha fiber amatha kugawidwa m'mitundu ingapo malinga ndi zida zosiyanasiyana.Zidazi zimakhala ndi mawonekedwe osiyanasiyana komanso ntchito zomwe zimatengera mawonekedwe a pulogalamuyo.Mndandanda womwe uli pansipa ukuwonetsa otchuka kwambirimitundu ya zida za jekete lakunja ndi ntchito zake.
Mitundu Yazida za Fiber Cable Outer Jacket:
| Zakuthupi | Makhalidwe ndi Ntchito |
| PVC (Polyvinylchloride) | Zomwe zimagwiritsidwa ntchito kwambiri pa jekete lakunja.Ndizotsika mtengo, zamphamvu, zosinthika, zosagwirizana ndi moto ndipo zitha kugwiritsidwa ntchito pazinthu zambiri. |
| PE (Polyethylene) | Makhalidwe abwino kwambiri amagetsi pamene mukusunga zotsekemera kwambiri.Zingwe za PE zitha kukhala zolimba komanso zolimba koma zimasinthasintha. |
| PVDF (Polyvinyl Difluoride) | Ili ndi zinthu zambiri zosagwira moto kuposa chingwe cha PE ndipo imagwiritsidwa ntchito makamaka m'malo a plenum. |
| PUR (Polyurethane) | PUR ndi yosinthika kwambiri komanso yosagwirizana ndi zokanda yomwe imagwiritsidwa ntchito makamaka m'malo otentha kwambiri. |
| LSZH (Utsi Wotsika Zero Halogen) | LSZH ndi yochepa poizoni kuposa PVC.Ili ndi chivundikiro chakunja choletsa moto chomwe sichitulutsa halogen ikatenthedwa.Amagwiritsidwa ntchito kwambiri pamakina otsekera. |