CovADSS optical fiber ntau cableua hauj lwm nyob rau hauv ib tug overhead lub xeev txhawb los ntawm ob lub ntsiab lus nrog ib tug loj span (feem ntau pua pua ntawm meters, los yog txawm ntau tshaj li 1 kilometers), uas yog kiag li txawv los ntawm ib txwm lub tswv yim ntawm "overhead" (tus ncej thiab kev sib txuas lus tus qauv overhead ncua kev kawm ntawv hlau nuv. , qhov nruab nrab ntawm 0.4 meters muaj 1 pivot).Yog li ntawd, qhov tseem ceeb ntawm ADSS optical fiber cable yog nyob rau hauv txoj kab nrog rau cov kev cai ntawm hluav taws xob overhead kab.
1. Nyuaj tso cai (MAT/MOTS)
Nws hais txog qhov nro ntawm qhov kho qhov muag cable thaum tag nrho cov load yog theoretically xam raws li cov qauv huab cua.Nyob rau hauv qhov nro no, cov fiber ntau yuav tsum yog ≤0.05% (txheej twist) thiab ≤0.1% (central raj) yam tsis muaj kev cuam tshuam ntxiv.Nyob rau hauv layman cov ntsiab lus, qhov ntev ntawm cov fiber ntau optical tsuas yog "noj" ntawm tus nqi tswj no.Raws li qhov kev ntsuas no, cov xwm txheej huab cua thiab kev tswj hwm sag, qhov kev tso cai ncua sij hawm ntawm optical cable nyob rau hauv cov xwm txheej no tuaj yeem suav.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 cable.
2. Rated tensile zog (UTS/RTS)
Kuj tseem hu ua qhov kawg tensile lub zog los yog tawg quab yuam, nws hais txog tus nqi ntawm cov lej ntawm lub zog ntawm cov kabmob (tseem suav cov spinning fibers).Lub zog tawg tiag tiag yuav tsum yog ≥ 95% ntawm tus nqi suav (qhov kev tawg ntawm ib qho khoom siv hauv cable raug txiav txim raws li cable tawg).Qhov kev ntsuas no tsis tuaj yeem siv tau, thiab ntau qhov kev tswj hwm muaj feem cuam tshuam nrog nws (xws li lub zog ntauwd, tensile fittings, ntsuas shockproof, thiab lwm yam).Rau kev lag luam kho qhov muag cable, yog tias qhov piv ntawm RTS / MAT (sib npaug rau qhov kev nyab xeeb K ntawm cov nyiaj siv ua haujlwm) tsis tsim nyog, txawm tias siv fiber ntau ntau, thiab cov khoom siv kho qhov muag muaj ntau qhov nqaim, economic/kev ua tau zoo piv piv tsis zoo heev.Yog li ntawd, tus sau tau pom zoo kom cov neeg hauv kev lag luam them nyiaj rau qhov ntsuas no.Feem ntau, MAT yog kwv yees li ntawm 40% RTS.
3. Kev Nyuaj Siab Txhua Xyoo (EDS)
Qee lub sij hawm hu ua qhov nruab nrab txhua hnub kev ntxhov siab, nws hais txog qhov nro ntawm lub cable thaum lub load yog xam raws li qhov tsis muaj cua, tsis muaj dej khov thiab qhov kub thiab txias txhua xyoo, uas tuaj yeem suav tias yog qhov nruab nrab tensile (kev ntxhov siab) quab yuam ntawm ADSS thaum lub sij hawm ntev. kev ua haujlwm.EDS feem ntau yog (16 ~ 25)% RTS.Nyob rau hauv no nro, lub fiber yuav tsum tsis muaj strain thiab tsis muaj ntxiv attenuation, uas yog, ruaj khov heev.EDS kuj tseem yog qhov qaug zog kev laus ntawm cov kab hluav taws xob kho qhov muag, thiab kev tiv thaiv kev vibration ntawm cov khoom siv kho qhov muag tau txiav txim siab raws li qhov ntsuas no.
4. Qhov kawg ua haujlwm nruj (UES).
Kuj tseem hu ua kev siv tshwj xeeb nro, nws yog hais txog qhov nro ntawm lub cable thaum nws muaj peev xwm ua tau ntau tshaj qhov tsim load thaum lub neej zoo ntawm lub cable.Nws txhais tau hais tias qhov kho qhov muag cable tau tso cai kom dhau 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 yog> 60% RTS.Nyob rau hauv qhov nro no, lub fiber ntau optical lim yog <0.5% (central tube) thiab <0.35% (txheej twisted), thiab cov fiber ntau optical yuav muaj kev txo qis ntxiv, tab sis tom qab qhov nro tawm, cov fiber ntau kho qhov muag yuav tsum rov qab mus rau qhov qub.Qhov kev ntsuas no ua kom ntseeg tau qhov kev ua haujlwm ntawm ADSS cable thaum nws lub neej.