The structure of the standard figure-eight self-supporting central tube optical cable is that single-mode or multi-mode optical fibers are sheathed in a loose tube made of high modulus plastic, and the tube is filled with a water-blocking compound. The center of the cable core is the loose tube. The loose tube is coated with plastic (wrinkle) steel tape longitudinally. The water blocking tape between the steel tape and the loose tube ensures the compactness of the optical cable and the longitudinal water blocking and is placed parallel to the steel strand. Simultaneously squeeze the figure 8 sheath into a cable.
Color:
Kev piav qhia
Cov ntaub ntawv txheej txheem
| No. ntawm cable | 2 ~ 8 | 10 ~ 12 | 14 ~ 24 | ||
| Tus Qauv Fiber | G.652D | ||||
| Xoob raj | Cov khoom siv | PBT | |||
| Txoj kab uas hla （± 0.06） mm | 2.0 | 2.4 | 2.8 | ||
| Thickness （± 0.03） mm | 0.32 | 0.35 | 0.4 | ||
| Max.Core NO./Tube | 2 ~ 8 | 10 ~ 12 | 14 ~ 24 | ||
| Dej thaiv cov txheej （Khoom （ | Dej thaiv kab xev | ||||
| Armoring | Cov khoom siv | Daim kab xev steel | |||
| Thickness （± 0.03） mm | 0.25 | ||||
| Neeg xa xov Hlau | Cov khoom siv | Galvanized steel strand | |||
| Qhov loj me ± ± 0.05） mm | 2.7 hli （0.9 × 7） | ||||
| Lub Vev Xaib | Cov khoom siv | MDPE | |||
| Qhov loj me ± ± 0.1） mm | 2.0 × 3.0 | ||||
| Txheej Sheath① | Cov khoom siv | MDPE | |||
| Thickness （± 0.1） hli | 1.5 | ||||
| Txheej Sheath② | Cov khoom siv | MDPE | |||
| Thickness （± 0.1） hli | 1.7 | 1.8 | 1.8 | ||
| Txoj kab uas hla cable ± ± 0.5） mm | 7.2 × 15.4 | 7.6 × 15.8 | 8.0 × 16.2 | ||
| Cable Ntub （± 10） kg | 110 | 115 | 125 | ||
| Min. dabtsi yog khoov vojvoog | Tsis Muaj Tension | 10.0 × Cable-φ | |||
| Raws Li Kev Mob Siab Ntau | 20.0 × Cable-φ | ||||
| Ntau yam kub （）） |
Txhim Kho | -20 ~ + 60 | |||
| Thauj & Cia | -40 ~ + 70 | ||||
| Kev ua haujlwm | -40 ~ + 70 | ||||
Cov xim fiber ntau
| Tsis yog. | 1 | 2 | 3 | 4 | 5 | 6 |
| Xim |  |
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| Tsis yog. | 7 | 8 | 9 | 10 | 11 | 12 |
| Xim |  |
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| Tsis yog. | 13 | 14 | 15 | 16 | 17 | 18 |
| Xim |  |
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| Tsis yog. | 19 | 20 | 21 | 22 | 23 | 24 |
| Xim |  |
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Cov khoom ntawm cov hom fiber ntau kho qhov muag (ITU-T Rec. G.652.D)
| Yam khoom | Specification |
| Hom fiber ntau | Ib Leeg-Hom |
| Cov khoom siv fiber ntau | Doped silica |
| Attenuation coefficient @ 1310 nm @ 1383 nm @ 1550 nm @ 1625 nm |
£ 0.36 dB / km £ 0.32 dB / km £ 0.22 dB / km £ 0.30 dB / km |
| Taw tes tsis txuas ntxiv | 0.05 dB |
| Cable ntuag-wavelength | £ 1260 nm |
| Lub voj voos-sib cais yoj | 1300 ~ 1324 nm |
| Voj-dispersion nqes hav | 0.092 ps / (nm2.km) |
| Chronic dispersion @ 1288 ~ 1339 nm @ 1271 ~ 1360 nm @ 1550 nm @ 1625 nm |
£ 3.5 ps / (nm. Km) £ 5.3 ps / (nm. Km) £ 18 ps / (nm. Km) £ 22 ps / (nm. Km) |
| PMDQ (Quadrature nruab nrab *) | 0.2 ps / km1 / 2 |
| Hom teb inch @ 1310 nm | 9.2 ± 0.4 um |
| Tub ntxhais / Clad concentricity yuam kev | 0.5 um |
| Cladding taub | 125.0 ± 0.7 um |
| Cladding tsis-ncig | £ 1.0% |
| Lub teeb txheej qhia ua ntej | 245 ± 10 um |
| Pov thawj qib | 100 kpsi (= 0.69 Gpa), 1% |
| Qhov ntsuas kub tsis txaus 0oC ~ + 70oC @ 1310 & 1550nm |
£ 0.1 dB / km |
Daim ntawv thov:
| TSIS MUAJ. | Yam khoom | Yuav Tsum Muaj | |
| 1 | Lub Tensile Ntsuas | Cable installation w / o Neeg xa xov liaison | 2700N |
| CableResidual w / o Neeg xa xov liaison | 800 N | ||
| 2 | Tsoo Kuj | Lub Sij Hawm Luv Luv | 1000 (/ 100mm) |
| Lub Sij Hawm Ntev | 300 (/ 100mm) | ||
Sheath npav
Cov xim ntawm kev cim yog dawb, tab sis yog tias qhov kev sib tw tsim nyog, lub cim xim dawb yuav tsum tau luam tawm tshiab nyob hauv lwm txoj haujlwm sib txawv.
Qee lub sij hawm tsis meej ntawm qhov cim ntev yog tso cai yog tias ob qho ntawm cov cim nyob sib ze yog tseeb.
Ob qho tag nrho cov xov txuas tau ntim nrog lub tshav kub shrinkable kawg lub kaus mom kom tiv thaiv dej ingress.
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