ADSS optical fiber cable ua haujlwm nyob rau hauv lub xeev overhead txhawb los ntawm ob lub ntsiab lus nrog ib tug loj span (feem ntau pua pua ntawm meters, los yog txawm ntau tshaj 1 km), uas yog kiag li txawv los ntawm ib txwm lub tswv yim ntawm "overhead" (post thiab telecommunications standard overhead dai. hlau nuv qhov kev pab cuam, qhov nruab nrab ntawm 0.4 meters tsis cuam tshuam rau optical cables).1 pivot).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. Kev Nyuaj Siab (MAT/MOTS) tso cai.
Xa mus rau qhov nro ntawm qhov kho qhov muag cable thaum tag nrho cov load yog theoretically xam raws li tus qauv tsim huab cua.Nyob rau hauv qhov nro no, cov fiber ntau yuav tsum yog ≤0.05% (txheej twist) thiab ≤0.1% (lub raj raj) uas tsis muaj kev cuam tshuam ntxiv.Nyob rau hauv layman cov ntsiab lus, uas yog, qhov ntev ntawm lub optical fiber yog tsuas yog "noj" ntawm tus nqi tswj no.Raws li qhov kev ntsuas no thiab cov huab cua puag ncig thiab kev tswj hwm sag, qhov kev tso cai siv dav ntawm cov kab hluav taws xob kho qhov muag hauv qhov 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 tus cwj pwm kev ntxhov siab ntawm ADSS optical cables.
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 txiaj ntsig ntawm qhov muaj zog ntawm cov kabmob hla ntu (tsuas yog textile fibers).Lub zog tawg tiag tiag yuav tsum yog ≥95% ntawm tus nqi suav (qhov kev tawg ntawm ib qho hauv cov khoom siv kho qhov muag raug txiav txim raws li cable tawg).Qhov kev ntsuas no tsis yog xaiv tau, thiab ntau qhov kev tswj hwm muaj feem cuam tshuam rau nws (xws li lub zog ntawm tus pej thuam, tensile fittings, kev tiv thaiv kev vibration, thiab lwm yam).Rau cov kws kho qhov muag cable, yog tias qhov piv ntawm RTS / MAT (sib npaug rau qhov kev nyab xeeb ntawm K ntawm cov kab nyiaj siv ua haujlwm) tsis tsim nyog, txawm tias siv fiber ntau ntau, thiab cov khoom siv kho qhov muag muaj ntau qhov nqaim, kev lag luam / kev ua tau zoo piv txwv 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 ntxhov siab txhua xyoo (EDS).
Qee lub sij hawm hu ua qhov nruab nrab kev ntxhov siab txhua hnub, nws yog hais txog qhov nro ntawm lub cable nyob rau hauv lub load ntawm theoretical xam nyob rau hauv qhov xwm ntawm tsis muaj cua, tsis muaj dej khov thiab txhua xyoo nruab nrab qhov kub thiab txias, uas yuav suav tau tias yog qhov nruab nrab nro (strain) ntawm lub ADSS thaum lub sijhawm ua haujlwm ntev.EDS feem ntau yog (16 ~ 25)% RTS.Nyob rau hauv qhov nro no, cov fiber ntau yuav tsum tsis muaj strain, tsis muaj ntxiv attenuation, piv txwv li, 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. Ultimate Running Tension (UES).
Kuj tseem hu ua kev siv tshwj xeeb nro, nws hais txog qhov nro uas lub cable raug rau thaum lub load tshaj qhov tsim load thaum lub sij hawm zoo lub neej ntawm optical 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, cov fiber ntau yog tsawg dua 0.5% (lub raj hauv nruab nrab) thiab <0.35% (txheej txheej twist), cov fiber ntau yuav muaj kev cuam tshuam ntxiv, tab sis tom qab qhov nro tawm, cov fiber ntau yuav tsum rov qab mus rau qhov qub.Qhov kev ntsuas no ua kom muaj kev nyab xeeb ntawm ADSS cable thaum nws lub neej.
Post lub sij hawm: Nov-25-2022