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:
Disgrifiad
Data technegol
| Nifer y cebl | 2 ~ 8 | 10 ~ 12 | 14 ~ 24 | ||
| Model Ffibr | G.652D | ||||
| Tiwb Rhydd | Deunydd | PBT | |||
| Diamedr （± 0.06） mm | 2.0 | 2.4 | 2.8 | ||
| Trwch （± 0.03） mm | 0.32 | 0.35 | 0.4 | ||
| Max.Core RHIF./Tube | 2 ~ 8 | 10 ~ 12 | 14 ~ 24 | ||
| Haen blocio dŵr （Deunydd） | Tâp Blocio Dŵr | ||||
| Arfogi | Deunydd | Tâp Dur | |||
| Trwch （± 0.03） mm | 0.25 | ||||
| Gwifren Negesydd | Deunydd | Llinyn dur galfanedig | |||
| Maint （± 0.05） mm | 2.7mm （0.9 × 7） | ||||
| Gwe | Deunydd | MDPE | |||
| Maint （± 0.1） mm | 2.0 × 3.0 | ||||
| Gwain Allanol① | Deunydd | MDPE | |||
| Trwch （± 0.1） mm | 1.5 | ||||
| Gwain Allanol② | Deunydd | MDPE | |||
| Trwch （± 0.1） mm | 1.7 | 1.8 | 1.8 | ||
| Diamedr Cable （± 0.5） mm | 7.2 × 15.4 | 7.6 × 15.8 | 8.0 × 16.2 | ||
| Gwlyb Cable （± 10） kg | 110 | 115 | 125 | ||
| Munud. radiws plygu | Heb Densiwn | 10.0 × Cable-φ | |||
| O dan y Tensiwn Uchaf | 20.0 × Cebl-φ | ||||
| Amrediad tymheredd （℃） |
Gosod | -20 ~ + 60 | |||
| Trafnidiaeth a Storio | -40 ~ + 70 | ||||
| Gweithrediad | -40 ~ + 70 | ||||
Lliw Ffibr
| Na. | 1 | 2 | 3 | 4 | 5 | 6 |
| Lliw |  |
 |
 |
 |
 |
|
| Na. | 7 | 8 | 9 | 10 | 11 | 12 |
| Lliw |  |
 |
 |
 |
 |
 |
| Na. | 13 | 14 | 15 | 16 | 17 | 18 |
| Lliw |  |
 |
 |
 |
 |
 |
| Na. | 19 | 20 | 21 | 22 | 23 | 24 |
| Lliw |  |
 |
 |
 |
 |
 |
Priodweddau ffibr optegol un modd (ITU-T Rec. G.652.D)
| Eitem | Manyleb |
| Math o ffibr | Modd sengl |
| Deunydd ffibr | Silica dop |
| Cyfernod gwanhau @ 1310 nm @ 1383 nm @ 1550 nm @ 1625 nm |
£ 0.36 dB / km £ 0.32 dB / km £ 0.22 dB / km £ 0.30 dB / km |
| Parhad pwynt | £ 0.05 dB |
| Tonfedd torri cebl | £ 1260 nm |
| Tonfedd dim gwasgariad | 1300 ~ 1324 nm |
| Llethr sero-wasgariad | £ 0.092 ps / (nm2.km) |
| Gwasgariad cromatig @ 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 (Cyfartaledd y tymheredd *) | £ 0.2 ps / km1 / 2 |
| Diamedr maes modd @ 1310 nm | 9.2 ± 0.4 um |
| Gwall crynodoldeb Craidd / Clad | £ 0.5 um |
| Diamedr cladin | 125.0 ± 0.7 um |
| Cylchdroi nad yw'n gylchol | £ 1.0% |
| Diamedr cotio cynradd | 245 ± 10 um |
| Lefel prawf prawf | 100 kpsi (= 0.69 Gpa), 1% |
| Dibyniaeth tymheredd 0oC ~ + 70oC @ 1310 & 1550nm |
£ 0.1 dB / km |
Cais:
| NA. | Eitem | Gofyniad | |
| 1 | Sgorio Tynnol | Gosod cebl w / o Messenger | 2700N |
| CableResidual w / o Negesydd | 800 N. | ||
| 2 | Gwrthsefyll Gwasgu | Tymor byr | 1000 (/ 100mm) |
| Tymor Hir | 300 (/ 100mm) | ||
Marcio gwain
Mae lliw y marcio yn wyn, ond os oes angen ail-nodi, rhaid argraffu'r marc lliw gwyn mewn sefyllfa wahanol.
Caniateir marcio hyd aneglur o bryd i'w gilydd os yw'r ddau farc cyfagos yn glir.
Mae'r ddau ben cebl wedi'u selio â chapiau diwedd crebachu gwres i atal dŵr rhag dod i mewn.
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