1. Lub teeb yuag: Cov qauv yog airtight thiab ib qho tshwj xeeb groove tsim yog saws, uas yog yooj yim rau kev sib txuas thiab yooj yim rau kev teeb tsa thiab kev txij nkawm.
2. Lub cable optical yog tsim tshwj xeeb rau ntawm sab elastic, uas yog tsim rau cov xwm txheej uas lub cable tsis khoov thiab lub thawv teeb tsa davhlau ya nyob twg yuav tsum khoov.
3. Cov fiber ntau optical muab tso rau hauv nruab nrab ntawm ob lub reinforcements, uas muaj cov khoom zoo heev lateral compression thiab tensile.
4. Cov xov hlau tawv uas siv G.657 cov fiber ntau uas tsis yooj yim khoov muaj kev tiv thaiv khoov zoo heev thiab yuav tsis cuam tshuam rau qhov poob ntawm cov xov hlau kho qhov muag thaum muab tso rau hauv qhov chaw nqaim thiab qhov chaw khoov hauv tsev.
5. Siv cov PVC uas tsis ua rau hluav taws lossis cov khoom siv uas tsis muaj pa luam yeeb halogen ua lub hnab tiv thaiv kab hluav taws xob kom ua tau raws li qhov yuav tsum tau ua ntawm cov kab hluav taws xob rau kev ua haujlwm tsis ua rau hluav taws hauv tsev.
6. Nws tuaj yeem ua ke nrog ntau yam kev sib txuas lus hauv teb thiab tuaj yeem raug kaw rau ntawm qhov chaw.
7. Kev siv cov qauv tawv uas tsis yog hlau kiag li tuaj yeem tiv thaiv tau xob laim.
8. Siv tau: cov sijhawm uas tsis muaj qhov yuav tsum tau ua kom tsis txhob muaj dej nkag hauv tsev.
Lub sijhawm tshaj tawm: Cuaj hlis-28-2022
