ADSS kho qhov muag cables ua hauj lwm nyob rau hauv ib tug loj-span ob-taw tes txhawb nqa (feem ntau pua pua ntawm meters, los yog ntau tshaj 1 km) overhead lub xeev, txawv kiag li los ntawm ib txwm lub tswv yim ntawm overhead (post thiab telecommunications standard overhead hanging wire nuv, qhov nruab nrab ntawm 0.4 meters. rau optical cable 1 Fulcrum).Yog li ntawd, cov tsis tseem ceeb ntawm ADSS optical cables yog nyob rau hauv txoj kab nrog cov kev cai ntawm lub hwj chim overhead kab.
1. Rated tensile zog (UTS/RTS)
Kuj tseem hu ua qhov kawg tensile lub zog los yog lub zog tawg, nws hais txog tus nqi ntawm cov lej ntawm lub zog ntawm cov khoom thauj khoom (tseem suav tias yog spinning fiber).Lub zog tawg tiag tiag yuav tsum ntau dua lossis sib npaug li 95% ntawm tus nqi suav (kev tawg ntawm ib qho kev tivthaiv hauv qhov kho qhov muag yog txiav txim siab tias yog cable tawg).Qhov parameter no tsis yog xaiv tau.Ntau qhov kev tswj hwm muaj feem cuam tshuam nrog nws (xws li lub zog ntauwd, tensile hardware, tiv thaiv kev vibration ntsuas, thiab lwm yam).Rau fiber optic cable cov tub txawg, yog hais tias tus piv ntawm RTS / MAT (sib npaug rau kev ruaj ntseg yam K ntawm overhead kab) tsis tsim nyog, uas yog, yog hais tias ib tug ntau ntawm spun fibers tau siv thiab cov muaj fiber ntau hom yog nqaim heev, economic/kev ua tau zoo piv piv tsis zoo heev.Yog li ntawd, tus kws sau ntawv pom zoo kom cov neeg ua haujlwm hauv kev lag luam them nyiaj rau qhov ntsuas no.Feem ntau, MAT yog kwv yees li ntawm 40% RTS.
2. Qhov siab tshaj plaws tso cai nruj (MAT/MOTS)
Xa mus rau qhov nro ntawm qhov kho qhov muag cable thaum tag nrho cov load yog xam theoretically raws li cov qauv huab cua.Raws li qhov nro no, cov fiber ntau yuav tsum yog ≤0.05% (stranded) thiab ≤0.1% (central tube) yam tsis muaj kev cuam tshuam ntxiv.Nyob rau hauv layman cov ntsiab lus, qhov ntev ntev ntawm cov fiber ntau optical twb nyuam qhuav tau noj los ntawm tus nqi tswj no.Raws li qhov kev ntsuas no, cov xwm txheej huab cua thiab kev tswj hwm sag, qhov tso cai ncua sij hawm ntawm cov kab hluav taws xob kho qhov muag tuaj yeem suav nrog hauv qhov xwm txheej no.Yog li ntawd, MAT yog lub hauv paus tseem ceeb rau kev suav ntawm sag-tension-span, thiab nws kuj yog ib qho pov thawj tseem ceeb rau kev ua tus cwj pwm kev ntxhov siab ntawm ADSS optical cables.
3. Txhua xyoo kev nyuaj siab (EDS)
Qee lub sij hawm hu ua qhov nruab nrab kev ntxhov siab txhua hnub, nws hais txog qhov kev ntsuas theoretically nro ntawm cov kab hluav taws xob kho qhov muag hauv qab tsis muaj cua, tsis muaj dej khov thiab qhov nruab nrab txhua xyoo.Nws tuaj yeem suav hais tias yog qhov nruab nrab qhov nro (strain) ntawm ADSS thaum lub sijhawm ua haujlwm ntev.EDS feem ntau yog (16 ~ 25)% RTS.Nyob rau hauv qhov nro no, lub optical fiber yuav tsum tsis muaj strain thiab tsis muaj attenuation ntxiv, uas yog, ruaj khov heev.EDS yog qhov qaug zog kev laus ntawm cov khoom siv kho qhov muag tib lub sijhawm, raws li qhov ntsuas no txiav txim siab qhov kev tiv thaiv kev vibration ntawm cov khoom siv kho qhov muag.
4. Qhov kawg ua haujlwm nruj (UES)
Kuj tseem hu ua kev siv tshwj xeeb nro, nws hais txog qhov siab tshaj plaws ntawm cov khoom siv kho qhov muag uas yuav dhau qhov kev tsim khoom thaum lub sijhawm ua haujlwm zoo ntawm cov khoom siv kho qhov muag.Nws txhais tau hais tias qhov kho qhov muag cable tso cai rau lub sijhawm luv luv, thiab cov khoom siv kho qhov muag tuaj yeem tiv taus cov kab mob hauv qhov txwv tsis pub muaj.Feem ntau, UES yuav tsum muaj ntau dua 60% RTS.Nyob rau hauv qhov nro no, yog hais tias lub strain ntawm fiber ntau tsawg dua 0.5% (central tube) thiab tsawg dua 0.35% (stranded), ntxiv attenuation ntawm fiber ntau yuav tshwm sim, tab sis tom qab lub nro tawm, cov fiber yuav tsum rov qab mus rau qhov qub.Qhov kev ntsuas no tau lees paub qhov kev ua haujlwm txhim khu kev qha ntawm ADSS optical cable thaum nws lub neej.
