All-dielectric self-supporting (ADSS) cable yog ib hom fiber ntau optical cable uas muaj zog txaus los txhawb nws tus kheej ntawm cov qauv yam tsis siv cov hlau conductive.Nws yog siv los ntawm cov tuam txhab hluav taws xob hluav taws xob raws li kev sib txuas lus nruab nrab, ntsia raws cov kab hluav taws xob uas twb muaj lawm thiab feem ntau sib koom cov kev txhawb nqa tib yam li cov khoom siv hluav taws xob.
Hauv ntiaj teb kev sib txuas lus, kev sivAll-Dielectric Self-Supporting (ADSS) cablestau dhau los ua neeg nyiam vim lawv versatility thiab durability.Txawm li cas los xij, tsim thiab tsim txoj cai ADSS cable tuaj yeem yog txheej txheem nyuaj thiab nyuaj.
Kev tsim kho tseem ceeb tshaj plaws
Txhawm rau tsim cov qauv ntawm ADSS cable kom zoo, ntau yam yuav tsum tau txiav txim siab.Nrog rau kev siv lub zog, tus neeg xyuas pib sag, A cua ceev b ice thickness c kub d topography, Span, Voltage.
Feem ntau, thaum koj nyob hauv kev tsim khoom, koj yuav tsum xav txog cov lus nug hauv qab no.
Jacket Hom: AT / PE
PE sheath: zoo tib yam polyethylene sheath.Rau cov kab hluav taws xob qis dua 110KV, thiab ≤12KV hluav taws xob lub zog.Lub cable yuav tsum raug tshem tawm ntawm qhov chaw uas lub zog hluav taws xob me me.
AT sheath: tiv thaiv kev taug qab sheath.Rau cov kab hluav taws xob siab tshaj 110KV, ≤20KV hluav taws xob lub zog.Lub cable yuav tsum raug tshem tawm ntawm qhov chaw uas lub zog hluav taws xob me me.
Tawm Cable Dia.: Ib lub tsho 8mm-12mm; Ob lub tsho 12.5mm-18mm
Fiber ntau: 4-144 Fibers
Aramid Yarn Paub meej: Qee yam zoo li (20 * K49 3000D) Qhov kev suav tseem ceeb ntawm tensile lub zog.
Raws li cov qauv kev ntxhov siab, S = Nmax / E * ε,
E (Tensile modulus) = 112.4 GPa (K49 1140 noj hmo)
ε = 0.8%
Feem ntau tsim strain <1% (Standed Tube) UTS;
≤0.8%, kev ntsuam xyuas
Nmax = W*(L2/8f+f);
L = span (m); feem ntau 100m, 150m, 200m, 300m, 500m, 600m;
f = Cable sag; feem ntau 12m lossis 16m.
Nmax = W * (L2 / 8f + f) = 0.7 * (500 * 500 / 8 * 12 + 12) = 1.83KN
S = Nmax/E*ε=1.83/114*0.008=2 mm²
Saramid (K49 2840D) = 3160 * 10-4 / 1.45 = 0.2179mm²
N cov lej aramid yarn = S / s = 2 / 0.2179 = 9.2
General aramid fiber ntau pob khawm suab yog 550mm-650mm, lub kaum = 10-12 °
W = Max load (kg / m) = W1 + W2 + W3 = 0.2 + 0 + 0.5 = 0.7 kg / m
W1 = 0.15kg / m (Qhov no yog qhov hnyav ntawm ADSS cable)
W2 = ρ*[(D+2d)²-D²]*0.7854/1000(kg/m) (Qhov no yog qhov hnyav ntawm ICE)
ρ = 0.9g / cm³, qhov ceev ntawm dej khov.
D = ADSS.Feem ntau 8mm-18mm
d = Ice npog thickness; Tsis muaj dej khov = 0mm, Lub teeb dej khov = 5mm, 10mm; Hnyav dej khov = 15mm, 20mm, 30mm;
Cia peb hais tias cov dej khov yog tuab yog 0mm, W2 = 0
W3 = Wx = α * Wp * D * L = α * (V² / 1600) * (D + 2d) * L / 9.8 (kg / m)
Cia peb hais tias cua ceev yog 25m / s, α = 0.85;D = 15 hli; W3 = 0.5 kg/m
Wp = V² / 1600 (Standard ib nrab siab formula, V txhais tau tias cua ceev)
α = 1.0(v＜20m/s); 0.85(20-29m/s); 0.75(30-34m/s); 0.7(＞35m/s);
α txhais tau tias Coefficient ntawm unevenness ntawm cua siab.
Qib |tshwm sim |m/s
1 Cov pa luam yeeb muaj peev xwm qhia tau hais tias cua kev taw qhia.0.3 rau 1.5
2 Tib neeg lub ntsej muag hnov cua thiab nplooj txav me ntsis.1.6 rau 3.3
3 Cov nplooj thiab cov txuj ci me me yog co thiab tus chij yog nthuav tawm.3.4 ~ 5.4 hli
4 Cov plua plav thiab daim ntawv tuaj yeem tawg tau, thiab cov ceg ntoo ntawm cov ntoo raug shaken.5.5 rau 7.9
5 Cov nplooj ntoo me me sways, thiab muaj cov kab xo nyob hauv dej hauv av.8.0-10.7 Nws
6 Cov ceg loj tshee tshee hnyo, cov xov hlau muaj suab nrov, thiab nqa lub kaus tsis yooj yim.10.8-13.8 Nws
7 Tag nrho cov ntoo raug shaken, thiab nws tsis yooj yim rau taug kev hauv cua.13.9-17.0 Nws.l
8 Lub micro-txheej txheem tawg, thiab tib neeg hnov zoo heev tiv thaiv mus rau pem hauv ntej.17.2-20.7 Nws
9 Lub tsev nyom raug puas ntsoog thiab tej ceg tawg.20.8-24.4 Nws
10 Cov ntoo tuaj yeem tawg tau, thiab cov vaj tse dav dav raug puas tsuaj.24.5-28.4 Nws
11 Cov av tsis tshua muaj, cov ntoo loj tuaj yeem tawg tau, thiab cov vaj tse dav dav raug puas tsuaj loj.28.5-32.6 Nws
12 Muaj tsawg tsawg nyob hauv lub tebchaws, thiab nws lub zog puas tsuaj loj heev.32.7-36.9 Nws
RTS: Rated tensile zog
Hais txog tus nqi suav ntawm lub zog ntawm cov kabmob seem (tsuas yog suav cov spinning fiber ntau).
UTS: Qhov kawg Tensile Strength UES> 60% RTS
Nyob rau hauv lub neej zoo ntawm lub cable, nws muaj peev xwm mus tshaj lub tsim load thaum lub cable los ntawm lub siab tshaj plaws nro.Qhov ntawd txhais tau hais tias lub cable yuav overloaded rau ib tug luv luv lub sij hawm.
MAT: Max tso cai ua haujlwm nruj 40% RTS
MAT yog lub hauv paus tseem ceeb rau sag - nro - ncua kev suav, thiab tseem yog ib qho pov thawj tseem ceeb rau cov yam ntxwv ntawm kev ntxhov siab ntawm ADSS optical cable.Raws li tus qauv tsim ntawm huab cua nyob rau hauv lub theoretical xam ntawm tag nrho cov load, cable nro.
Nyob rau hauv qhov nro no, cov fiber ntau yuav tsum tsis pub ntau tshaj 0.05% (laminated) thiab tsis ntau tshaj 0.1% (central yeeb nkab) yam tsis muaj ntxiv attenuation.
EDS: Txhua Hnub Muaj Zog (16 ~ 25)% RTS
Qhov nruab nrab txhua xyoo kev ntxhov siab yog qee zaum hu ua qhov nruab nrab kev ntxhov siab txhua hnub, hais txog cua thiab tsis muaj dej khov thiab qhov nruab nrab txhua xyoo, qhov kev xav ntawm kev suav ntawm cov load cable nro, tuaj yeem suav tias yog ADSS hauv kev ua haujlwm ntev ntawm qhov nruab nrab nro. (yuav tsum) zog.
EDS feem ntau yog (16 ~ 25) % RTS.
Nyob rau hauv no nro, lub fiber yuav tsum tsis muaj strain, tsis muaj ntxiv attenuation, uas yog, ruaj khov heev.
EDS kuj tseem yog qhov qaug zog kev laus ntawm cov khoom siv kho qhov muag fiber ntau optic cable, raws li qhov kev tiv thaiv kev vibration tsim ntawm optical fiber optic cable yog txiav txim siab.
Hauv cov ntsiab lus, tsim thiab tsim txoj cai ADSS cable yuav tsum muaj kev nkag siab zoo txog qhov kev xav tau ntawm qhov project, xaiv cov ntaub ntawv zoo, thiab kev siv cov kev tswj xyuas zoo.Nrog rau cov kev xav hauv siab no, cov chaw muab kev sib txuas lus tuaj yeem tso siab rau ADSS cables uas ua tau raws li qhov xav tau ntawm kev sib txuas niaj hnub no.