All-dielectric self-supporting (ADSS) cable ke mofuta oa optical fiber cable e matla hoo e ka iphelisang pakeng tsa mehaho ntle le ho sebelisa lisebelisoa tsa tšepe tse tsamaisang. E sebelisoa ke lik'hamphani tsa ts'ebeliso ea motlakase e le setsi sa likhokahano, se kentsoeng haufi le mehala ea phetisetso e holimo 'me hangata se arolelana meaho e ts'oanang ea ts'ehetso joalo ka li-conductors tsa motlakase.
Lefatšeng la likhokahano tsa mehala, tšebeliso eaLithapo tsa All-Dielectric Self-Supporting (ADSS).e se e tumme haholo ka lebaka la ho feto-fetoha ha tsona le ho tšoarella ha tsona. Leha ho le joalo, ho rala le ho hlahisa thapo e nepahetseng ea ADSS e ka ba ts'ebetso e rarahaneng le e thata.
Moqapi oa bohlokoa ka ho fetisisa oa Kaho
E le hore u rale ka nepo sebopeho sa thapo ea ADSS, lintlha tse ngata li tlameha ho nahanoa.Ho kenyeletsoa matla a mochini, sag ea conductor, Lebelo la moea b ice thickness c mocheso d topography,Span, Voltage.
Hangata, ha u le tlhahiso, u lokela ho nahana ka lipotso tse latelang.
Mofuta oa Jacket: AT/PE
PE sheath: polyethylene sheath e tloaelehileng. Bakeng sa lithapo tsa motlakase tse ka tlase ho 110KV, le ≤12KV matla a sebaka sa motlakase. Mohala o lokela ho emisoa sebakeng seo matla a motlakase a leng manyenyane.
AT sheath/ Ketso ya ho thibela ho latela mohlala. Bakeng sa lithapo tsa motlakase tse ka holimo ho 110KV, ≤20KV matla a sebaka sa motlakase. Mohala o lokela ho emisoa sebakeng seo matla a motlakase a leng manyenyane.
Thepa e kantle ea thapo: Jacket e le 'ngoe 8mm-12mm; Jacket e habeli 12.5mm-18mm
Lifaeba palo: 4-144Fibers
Lintlha tsa Khoele ea Aramid: Ntho e kang (20*K49 3000D) Palo ena ea mantlha ea matla a ho tsitsa.
Ho latela mokhoa oa khatello ea maikutlo, S=Nmax/E*ε,
E (Tensile modulus)=112.4 GPa (K49 1140Dinner)
ε=0.8%
Hangata e etselitsoe khatello <1% (Stranded Tube) UTS;
≤0.8%, tlhahlobo
Nmax=W*(L2/8f+f);
L=span(m); hangata 100m,150m,200m,300m,500m,600m;
f=Cable sag; hangata 12m kapa 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 dinomoro khoele ya aramid=S/s=2/0.2179=9.2
Kakaretso ea aramid fiber hinge pitch ke 550mm-650mm, angle=10-12°
W=Moroalo o moholo (kg/m)=W1+W2+W3=0.2+0+0.5=0.7kg/m
W1=0.15kg/m(Bona ke boima ba thapo ya ADSS)
W2=ρ*[(D+2d)²-D²]*0.7854/1000(kg/m) (Bona ke boima ba ICE)
ρ=0.9g/cm³, ho teteana ha leqhoa.
D=Bophara ba ADSS. Hangata 8mm-18mm
d=Botenya ba sekoaelo sa leqhoa;Ha ho leqhoa=0mm,Leqhoa le khanyang=5mm,10mm; leqhoa le boima =15mm,20mm,30mm;
Ha re re leqhoa le letenya ke 0mm,W2=0
W3=Wx=α*Wp*D*L=α* (V²/1600)*(D+2d)*L/9.8 (kg/m)
Ha re re lebelo la moea ke 25m/s, α=0.85; D=15mm;W3=0.5kg/m
Wp=V²/1600 (Molao o tloaelehileng oa khatello ea karolo, V e bolela lebelo la moea)
α= 1.0(v＜20m/s);0.85(20-29m/s);0.75(30-34m/s);0.7(＞35m/s);
α e bolela Coefficient ea ho se lekane ha khatello ea moea.
Boemo | ketsahalo | Mof
1 Mosi o ka supa moo moea o eang teng. 0.3 ho isa ho 1.5
2 Sefahleho sa motho se na le moea 'me makhasi a sisinyeha hanyane. 1.6 ho isa ho 3.3
3 Mahlaku le mekhoa e menyane ea thothomela 'me folakha ea phutholoha. 3.4~5.4
4 Lerole la fatše le pampiri li ka phatloa, ’me makala a sefate a sisinyeha. 5.5 ho isa ho 7.9
5 Sefate se senyenyane se makhasi sea thekesela, ’me ho na le maqhubu a maqhubu metsing a ka hare ho naha. 8.0 ho isa ho 10.7
6 Makala a maholo aa thothomela, mehala e lla, ’me ho thata ho phahamisa sekhele. 10.8~13.8
7 Sefate sohle sea sisinyeha, ’me ha ho bonolo ho tsamaea moeeng. 13.9-17. l
8 Lekala le lenyenyane le robehile, 'me batho ba ikutloa ba sa rate ho ea pele. 17.2 ~ 20.7
9 Ntlo ea joang e ile ea senyeha ’me makala a robeha. 20.8 ho isa ho 24.4
10 Lifate li ka lihuoa, ’me mehaho e akaretsang ea senyeha. 24.5 ho 28.4
11 Ka seoelo lefatšeng, lifate tse khōlō li ka lihuoa, ’me mehaho e akaretsang e senyeha habohloko. 28.5 ~ 32.6
12 Ke ba seng bakae lefatšeng, ’me matla a lona a timetso a maholo. 32.7 ~ 36.9
RTS: E lekantsoe matla a tensile
E bolela boleng bo lekantsoeng ba matla a karolo ea ho beleha (haholo-holo ho bala fiber e ohiang).
UTS: Ultimate Tensile Matla UES>60% RTS
Bophelong bo sebetsang ba thapo, hoa khoneha ho feta moroalo oa moralo ha mohala o na le tsitsipano e phahameng.Seo se bolela hore mohala o ka imeloa ka nako e khuts'oane.
MAT: Khatello e phahameng e lumelletsoeng ea ho sebetsa 40% RTS
MAT ke motheo oa bohlokoa bakeng sa sag - tension - span calculation, 'me hape ke bopaki ba bohlokoa ba ho khetholla litšobotsi tsa khatello ea kelello ea ADSS optical cable.E bua ka moralo oa maemo a leholimo tlas'a lipalo tsa khopolo-taba ea mojaro oohle, khatello ea cable.
Tlas'a tsitsipano ena, khatello ea fiber ha ea lokela ho ba ho feta 0.05% (laminated) le ho feta 0.1% (phala e bohareng) ntle le ho fokotseha ho eketsehileng.
EDS: Matla a Letsatsi le Letsatsi (16 ~ 25)% RTS
Khatello ea kelello ea selemo le selemo ka linako tse ling e bitsoa khatello ea maikutlo ea letsatsi le letsatsi, e bua ka moea le ha ho na leqhoa le mocheso oa selemo le selemo, lipalo tsa theoretical tsa khatello ea maikutlo, li ka nkoa e le ADSS ts'ebetsong ea nako e telele ea khatello ea maikutlo. (lokela) ho qobella.
EDS ka kakaretso ke (16~25) %RTS.
Tlas'a tsitsipano ena, fiber ha ea lokela ho ba le khatello, ha ho na attenuation e eketsehileng, ke hore, e tsitsitse haholo.
EDS hape ke mokhathala oa botsofali ba thapo ea optical fiber optic, ho latela hore na moralo oa anti-vibration oa thapo ea fiber optic o ikemiselitse.
Ka kakaretso, ho qapa le ho hlahisa mohala o nepahetseng oa ADSS ho hloka kutloisiso e feletseng ea litlhoko tsa morero, khetho ea thepa ea boleng bo phahameng, le ho kenya ts'ebetsong ea mehato e matla ea ho laola boleng. Ho nahanoa ka lintlha tsena, bafani ba likhokahano ba ka sebelisa likhoele tsa ADSS ka kholiseho tse fihlelang litlhoko tsa khokahanyo ea kajeno.