All-dielectric self-supporting cable (ADSS) bụ ụdị eriri eriri anya nke siri ike iji kwado onwe ya n'etiti ihe owuwu na-ejighi ihe metal conductive.Ndị ụlọ ọrụ na-ahụ maka ọkụ eletrik na-eji ya dị ka usoro nkwukọrịta, arụnyere n'akụkụ ahịrị nnyefe dị n'elu ma na-ekerịta otu ihe nkwado dị ka ndị na-eduzi ọkụ eletrik.
Na ụwa nke telekomunikasonu, ojiji nkeIgwe na-akwado onwe ya (ADSS) niile-Dielectricaghọwo ihe na-ewu ewu n'ihi na ha na-agbanwe agbanwe na ogologo oge.Agbanyeghị, imepụta na imepụta eriri ADSS ziri ezi nwere ike bụrụ usoro dị mgbagwoju anya na nke siri ike.
Ihe owuwu kacha mkpa
Iji n'ụzọ kwesịrị ekwesị chepụta Ọdịdị nke ADSS cable, ọtụtụ akụkụ ga-atụle.Gụnyere n'ibu ike,conductor sag,A ifufe ọsọ b ice ọkpụrụkpụ c okpomọkụ d topography,Span, Voltage.
Ọtụtụ mgbe, mgbe ị na-emepụta ihe, ịkwesịrị ịtụle ajụjụ ndị a.
Ụdị jaket: AT/PE
PE n'ọbọ: nkịtị polyethylene n'ọbọ.N'ihi na ike ahịrị n'okpuru 110KV, na ≤12KV electric ubi ike.Ekwesịrị ịkwụsị eriri ahụ n'ebe ike ọkụ eletrik dị ntakịrị.
AT n'ọbọ: mgbochi nsuso n'ọbọ.N'ihi na ike ahịrị n'elu 110KV, ≤20KV electric ubi ike.Ekwesịrị ịkwụsị eriri ahụ n'ebe ike ọkụ eletrik dị ntakịrị.
Out Cable Dia.: Otu jaket 8mm-12mm; jaket abụọ 12.5mm-18mm
Ọnụ ọgụgụ eriri: 4-144 eriri
Nkọwa Aramid Yarn: Ihe dị ka (20*K49 3000D) Nke a bụ isi mgbako nke ike tensile.
Dị ka usoro mgbakasị ahụ siri dị, S=Nmax/E*ε,
E (modulu akwara) = 112.4 GPa (K49 1140 nri abalị)
ε=0.8%
A na-emepụtakarị eriri <1% (Stranded Tube) UTS;
≤0.8%, nyocha
Nmax=W*(L2/8f+f);
L = ogologo (m); na-emekarị 100m,150m,200m,300m,500m,600m;
f = Cable sag; na-emekarị 12m ma ọ bụ 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 nọmba aramid yarn=S/s=2/0.2179=9.2
General aramid eriri hinge pitch bụ 550mm-650mm, akụkụ = 10-12°
W= Ibu kacha (kg/m)=W1+W2+W3=0.2+0+0.5=0.7kg/m
W1 = 0.15kg/m (Nke a bụ arọ ADSS USB)
W2=ρ*[(D+2d)²-D²]*0.7854/1000(kg/m) (Nke a bụ arọ ICE)
ρ=0.9g/cm³, njupụta nke ice.
D= Dayameta nke ADSS.Na-emekarị 8mm-18mm
d= Ice mkpuchi ọkpụrụkpụ;Ọ dịghị ice = 0mm, Light ice = 5mm,10mm;Akpụrụ mmiri dị arọ=15mm,20mm,30mm;
Ka anyị kwuo na ice dị oke 0mm,W2=0
W3=Wx=α*Wp*D*L=α* (V²/1600）*(D+2d)*L/9.8 (kg/m)
Ka anyị kwuo na ọsọ ikuku bụ 25m/s, α=0.85;D=15mm;W3=0.5kg/m
Wp = V²/1600 (Standard ele mmadụ anya n'ihu nrụgide usoro, V pụtara ifufe ọsọ)
α= 1.0 (v＜20m/s);0.85(20-29m/s);0.75(30-34m/s);0.7(35m/s);
α pụtara ọnụọgụ nke enweghị oke nke ikuku ikuku.
Ọkwa |onu |m/s
1 Anwụrụ ọkụ nwere ike igosi ntụzịaka ikuku.0.3 ruo 1.5
2 Ihu mmadụ na-enwe ikuku na akwụkwọ ya na-emegharị ntakịrị.1.6 ruo 3.3
3 Akwụkwọ na micro-technique na-ama jijiji na ọkọlọtọ na-apụta.3.4-5.4
4 Enwere ike ịfụ uzuzu n'ala na akwụkwọ, na alaka osisi na-ama jijiji.5.5 ruo 7.9
5 Osisi nta nke nwere akwụkwọ ndụ na-amali, ma e nwere ebili mmiri n’ime mmiri dị n’ime ala.8.0 ruo 10.7
6 Nnukwu alaka na-ama jijiji, wires na-ada ụda, ọ na-esikwa ike ibuli nche anwụ.10.8-13.8
7 Osisi nile na-ama jijiji, ọ dịghịkwa mfe ije ije na ifufe.13.9-17.l
8 Alaka micro-agbajikwa, ndị mmadụ na-enwekwa ike na-agaghị ekwe omume ịga n'ihu.17.2-20.7
9 Ụlọ ahịhịa ahụ mebiri emebi, gbajiekwa alaka ya.20.8 ruo 24.4
10 Enwere ike ịkụtu osisi, na-ebibikwa ụlọ ndị nkịtị.24.5 ruo 28.4
11 A na-adịghị ahụkebe n'elu ala, enwere ike ịkwatu osisi buru ibu, na-emebikwa ụlọ ndị nkịtị.28.5-32.6
12 Ọ dị ole na ole n’ala, + ike mbibi ya dịkwa ukwuu.32.7-36.9
RTS: Enyere ike tensile
Na-ezo aka na uru gbakọrọ agbakọ nke ike nke ngalaba ibu (karịsịa na-agụta eriri na-agbagharị).
UTS: Ike tensile kacha elu UES> 60% RTS
Na ndụ dị irè nke eriri, ọ ga-ekwe omume ịfefe ibu nhazi mgbe eriri site na oke esemokwu. Nke ahụ pụtara na eriri ahụ nwere ike ibufe obere oge.
MAT: 40% RTS kacha mma na-arụ ọrụ
MAT bụ ihe ndabere dị mkpa maka sag - esemokwu - ngụkọ oge, yana ihe akaebe dị mkpa iji mara njirimara nrụgide-nrụgide nke ADSS optical cable. Na-ezo aka na nhazi nke ọnọdụ meteorological n'okpuru usoro nhazi nke ngụkọta ibu, eriri USB.
N'okpuru esemokwu a, eriri eriri kwesịrị ịbụ ihe karịrị 0.05% (laminated) na ọ bụghị ihe karịrị 0.1% (paịpụ etiti) na-enweghị mgbakasị ọzọ.
EDS: Ike kwa ụbọchị (16 ~ 25)% RTS
The kwa afọ nkezi nchegbu mgbe ụfọdụ a na-akpọ kwa ụbọchị nkezi nrụgide, na-ezo aka ifufe na ọ dịghị ice na kwa afọ nkezi okpomọkụ, theoretical ngụkọta oge nke ibu cable esemokwu, nwere ike weere dị ka ADSS na ogologo oge ọrụ nke nkezi erughị ala. (kwesịrị) ike.
EDS bụ n'ozuzu (16 ~ 25)% RTS.
N'okpuru esemokwu a, eriri ahụ ekwesịghị inwe nsogbu, ọ dịghị ihe ọzọ attenuation, ya bụ, kwụsiri ike.
EDS bụkwa oke ike ike ịka nká nke eriri fiber optic optical, dịka nke a na-ekpebi ihe mgbochi ịma jijiji nke eriri eriri anya.
Na nchịkọta, imepụta na imepụta eriri ADSS ziri ezi chọrọ nghota nke ọma gbasara ihe a chọrọ n'ọrụ, nhọrọ nke ihe ndị dị oke mma na mmejuputa usoro njikwa mma siri ike.N'iburu n'uche ihe ndị a n'uche, ndị na-eweta ekwentị nwere ike jiri obi ike bufee eriri ADSS nke na-egbo mkpa nke mkpa njikọta taa.