Ikhebula le-All-dielectric self-supporting (ADSS) iwuhlobo lwekhebula le-fiber optical eliqine ngokwanele ukuze lizisekele phakathi kwezakhiwo ngaphandle kokusebenzisa izakhi zensimbi eziqhutshwayo.Isetshenziswa izinkampani zezinsiza zikagesi njengendawo yezokuxhumana, efakwe eduze kwemigqa yokudlulisa engaphezulu ekhona futhi ivame ukwabelana ngezakhiwo ezifanayo zokusekela njengezikhondatha zikagesi.
Ezweni lezokuxhumana, ukusetshenziswa kweIzintambo ezizisekelayo ze-All-Dielectric Self-Support (ADSS).selidume kakhulu ngenxa yokuguquguquka nokuqina kwazo.Nokho, ukuklama nokukhiqiza ikhebula elilungile le-ADSS kungaba inqubo eyinkimbinkimbi neyinselele.
Umklamo Wokwakha obaluleke kakhulu
Ukuze udizayine kahle ukwakheka kwekhebula le-ADSS, izici eziningi kufanele zicatshangelwe.Kuhlanganisa amandla emishini, i-conductor sag, Isivinini somoya b ukushuba kweqhwa c izinga lokushisa d i-topography,I-Span, I-Voltage.
Ngokuvamile, lapho ukhiqiza, udinga ukucabangela le mibuzo elandelayo.
Uhlobo Lwejakhethi:AT/PE
I-PE sheath: i-polyethylene sheath evamile.Olayini bamandla abangaphansi kuka-110KV, namandla enkambu kagesi engu-≤12KV.Ikhebula kufanele limiswe endaweni lapho amandla enkundla kagesi emancane.
I-AT sheath: i-anti-tracking sheath.Olayini bamandla angaphezu kuka-110KV, ≤20KV amandla enkambu kagesi.Ikhebula kufanele limiswe endaweni lapho amandla enkundla kagesi emancane.
I-Out Cable Dia.: Ijakhethi Elilodwa 8mm-12mm; Ijakhethi ekabili 12.5mm-18mm
I-Fiber Count: 4-144Fibers
Imininingwane Yentambo Ye-Aramid:Into efana (20*K49 3000D)Lesi sibalo esikhulu samandla aqinile.
Ngokwefomula yokucindezeleka, S=Nmax/E*ε,
E (I-Tensile modulus)=112.4 GPa (K49 1140Dinner)
ε=0.8%
Ivamise ukudizayina uhlobo <1% (Ishubhu elixutshwe))UTS;
≤0.8%, ukuhlola
Nmax=W*(L2/8f+f);
L=i-span(m); ngokuvamile ngu-100m,150m,200m,300m,500m,600m;
f=Ikhebula liyantenga; ngokuvamile 12m noma 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
I-Saramid(K49 2840D)=3160*10-4/1.45=0.2179mm²
Izinombolo ze-aramid yarn=S/s=2/0.2179=9.2
I-aramid fibre hinge pitch evamile ingu-550mm-650mm, i-engeli=10-12°
W=Umthwalo omkhulu (kg/m)=W1+W2+W3=0.2+0+0.5=0.7kg/m
W1=0.15kg/m(Lesi isisindo sekhebuli ye-ADSS)
W2=ρ*[(D+2d)²-D²]*0.7854/1000(kg/m) (Lesi isisindo se-ICE)
ρ=0.9g/cm³, ukuminyana kweqhwa.
D=Ububanzi be-ADSS.Ngokuvamile 8mm-18mm
d=Ukujiya kwekhava yeqhwa;Alikho iqhwa=0mm,Iqhwa elilula=5mm,10mm;Iqhwa elisindayo=15mm,20mm,30mm;
Ake sithi iqhwa liwugqinsi ngu-0mm,W2=0
W3=Wx=α*Wp*D*L=α* (V²/1600)*(D+2d)*L/9.8 (kg/m)
Ake sithi isivinini somoya ngu-25m/s, α=0.85;D=15mm;W3=0.5kg/m
I-Wp=V²/1600 (ifomula yokucindezela okuyingxenye evamile, V isho isivinini somoya)
α= 1.0(v＜20m/s);0.85(20-29m/s);0.75(30-34m/s);0.7(＞35m/s);
U-α usho i-Coefficient yokungalingani komfutho womoya.
Izinga |into |m/s
1 Intuthu ingakhomba lapho umoya uya ngakhona.0.3 kuye ku-1.5
2 Ubuso bomuntu buzwakala bunomoya futhi amaqabunga anyakaza kancane.1.6 kuya ku-3.3
3 Amaqabunga kanye namasu amancane ayazamazama futhi nefulegi liyambuleka.3.4~5.4
4 Kungaphephuka uthuli nephepha phansi, kushukunyiswe amagatsha esihlahla.5.5 kuya ku-7.9
5 Isihlahla esincane esinamaqabunga siyanyakaza, futhi kunamagagasi emanzini aphakathi nezwe.8.0 kuye ku-10.7
6 Amagatsha amakhulu ayanyakaza, izintambo ziyakhala, futhi kunzima ukuphakamisa isambulela.10.8~13.8
7 Isihlahla sonke siyanyakaziswa, futhi akulula ukuhamba emoyeni.13.9–17.l
8 Igatsha elincane liphukile, futhi abantu bazizwa bemelene kakhulu nokuqhubekela phambili.17.2~20.7
9 Indlu yotshani yonakala namagatsha aphuka.20.8 kuya ku-24.4
10 Izihlahla zingaphephuka, futhi izakhiwo ezivamile ziyabhidlika.24.5 kuya ku-28.4
11 Ezimweni ezingavamile emhlabeni, izihlahla ezinkulu zingaphephuka, futhi izakhiwo ezivamile zilimale kakhulu.28.5~32.6
12 Bambalwa ezweni, futhi amandla alo okubhubhisa makhulu.32.7~36.9
I-RTS: Ilinganiselwe amandla okuqina
Isho inani elibaliwe lamandla esigaba sokuthwala (ikakhulukazi ibala i-fiber ejikelezayo).
I-UTS: Amandla Okuqina Okuqinile UES>60% RTS
Empilweni esebenzayo yekhebula, kungenzeka ukweqa umthwalo wokuklama lapho ikhebula ngokucindezela okukhulu.Lokho kusho ukuthi ikhebula lingalayishwa ngokweqile isikhathi esifushane.
I-MAT: I-Max evunyelwe ukusebenza kwe-40% RTS
I-MAT iyisisekelo esibalulekile sokubala kwe-sag - tension - span, kanye nobufakazi obubalulekile obubonisa izici zokucindezeleka kwe-ADSS optical cable.Ibhekisela ekwakhiweni kwezimo zezulu ngaphansi kwezibalo zethiyori zomthwalo ophelele, ukucindezelwa kwekhebula.
Ngaphansi kwalokhu kushuba, i-fiber strain akufanele ibe ngaphezu kuka-0.05% (laminated) futhi ingabi ngaphezu kuka-0.1% (ipayipi eliphakathi) ngaphandle kokunciphisa okwengeziwe.
I-EDS: Amandla Ansuku zonke (16~25)% RTS
Ukucindezeleka okuvamile konyaka ngezinye izikhathi kubizwa ngokuthi ukucindezeleka okujwayelekile kwansuku zonke, kubhekisela emoyeni futhi akukho qhwa kanye nezinga lokushisa elijwayelekile lonyaka, ukubalwa kwethiyori ye-cable cable tension, kungabhekwa njenge-ADSS ekusebenzeni kwesikhathi eside kwengcindezi evamile. (kufanele) ngenkani.
I-EDS ngokuvamile ithi (16~25) %RTS.
Ngaphansi kwalokhu kungezwani, i-fiber akufanele ibe nokucindezeleka, ingabi nokunciphisa okwengeziwe, okungukuthi, izinzile kakhulu.
I-EDS iphinde ibe ipharamitha yokukhathala yokuguga yekhebula le-fiber optic optical, ngokuya ngokuthi idizayini yokunqanda ukudlidliza yekhebula optical fibre optic inqunywa.
Kafushane, ukuklama nokukhiqiza ikhebula le-ADSS elifanele kudinga ukuqonda okuphelele kwezidingo zephrojekthi, ukukhethwa kwezinto ezisezingeni eliphezulu, kanye nokusetshenziswa kwezinyathelo zokulawula ikhwalithi eziqinile.Unalokhu kucatshangelwa, abahlinzeki bezokuxhumana bangasebenzisa ngokuzethemba izintambo ze-ADSS ezihlangabezana nezidingo zezidingo zanamuhla zokuxhuma.