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:
Maelezo
Takwimu za kiufundi
| Hapana. Ya kebo | 2 ~ 8 | 10 ~ 12 | 14 ~ 24 | ||
| Mfano wa nyuzi | G.652D | ||||
| Loose Tube | Nyenzo | PBT | |||
| Kipenyo （± 0.06） mm | 2.0 | 2.4 | 2.8 | ||
| Unene （± 0.03） mm | 0.32 | 0.35 | 0.4 | ||
| Max.Core NO./Tube | 2 ~ 8 | 10 ~ 12 | 14 ~ 24 | ||
| Safu ya kuzuia maji （Nyenzo） | Bomba la kuzuia maji | ||||
| Kuongeza silaha | Nyenzo | Bomba la Chuma | |||
| Unene （± 0.03） mm | 0.25 | ||||
| Wire wa Mjumbe | Nyenzo | Kamba ya chuma iliyopigwa | |||
| Saizi （± 0.05） mm | 2.7mm （0.9 × 7） | ||||
| Mtandao | Nyenzo | MDPE | |||
| Saizi （± 0.1 ± mm | 2.0 × 3.0 | ||||
| Sheath ya nje | Nyenzo | MDPE | |||
| Unene （± 0） mm | 1.5 | ||||
| Sheath ya nje | Nyenzo | MDPE | |||
| Unene （± 0） mm | 1.7 | 1.8 | 1.8 | ||
| Kipenyo cha Cable （± 0.5） mm | 7.2 × 15.4 | 7.6 × 15.8 | 8.0 × 16.2 | ||
| Cable Wetght （± 10） kilo | 110 | 115 | 125 | ||
| Dak. radi radius | Bila Mvutano | Cable-φ 10.0 × Cable-φ | |||
| Chini ya Mvutano wa kiwango cha juu | 20.0 × Cable-φ | ||||
| Aina ya joto （℃） |
Ufungaji | -20 ~ + 60 | |||
| Usafiri na Hifadhi | -40 ~ + 70 | ||||
| Uendeshaji | -40 ~ + 70 | ||||
Rangi ya nyuzi
| Hapana. | 1 | 2 | 3 | 4 | 5 | 6 |
| Rangi |  |
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| Hapana. | 7 | 8 | 9 | 10 | 11 | 12 |
| Rangi |  |
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| Hapana. | 13 | 14 | 15 | 16 | 17 | 18 |
| Rangi |  |
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| Hapana. | 19 | 20 | 21 | 22 | 23 | 24 |
| Rangi |  |
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Sifa ya nyuzi za macho ya aina moja (ITU-T Rec. G.652.D)
| Jambo | Uainishaji |
| Aina ya nyuzi | Njia moja |
| Vifaa vya nyuzi | Silika |
| Utaftaji wa uelekezaji @ 1310 nm @ 1383 nm @ 1550 nm @ 1625 nm |
£ 0.36 dB / km £ 0.32 dB / km £ 0.22 dB / km £ 0.30 dB / km |
| Ukosefu wa kumweka | Pauni 0.05 dB |
| Chembe ya kukatwa kwa waya | Pauni 1260 nm |
| Zero-kutawanyika wimbilength | 1300 ~ 1324 nm |
| Mteremko wa kutawanyiko | £ 0.092 ps / (nm2.km) |
| Kutawanywa kwa Chromatic @ 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 (wastani wa Quadrature *) | Pauni 0.2 ps / km1 / 2 |
| Kipenyo cha uwanja wa njia @ 1310 nm | 9.2 ± 0.4 um |
| Kosa la uangalifu wa karibu / Clad | Pauni 0.5 um |
| Kipenyo cha kufungwa | 125.0 ± 0.7 um |
| Kufunga isiyo ya mzunguko | Pauni 1.0% |
| Kipenyo cha msingi cha mipako | 245 ± 10 um |
| Kiwango cha mtihani wa uthibitisho | 100 kpsi (= 0.69 Gpa), 1% |
| Utegemezi wa joto 0oC ~ + 70oC @ 1310 & 1550nm |
Pauni 0,1 dB / km |
Maombi:
| HAPANA. | Jambo | Sharti | |
| 1 | Vipimo Tensile | Ufungaji wa nyaya w / o Messenger | 2700N |
| CableResidual w / o Messenger | 800 N | ||
| 2 | Kupinga kwa Crush | Muda mfupi | 1000 (/ 100mm) |
| Muda mrefu | 300 (/ 100mm) | ||
Kuashiria kwa sheath
rangi ya kuashiria ni nyeupe, lakini ikiwa maelezo ni muhimu, alama ya rangi nyeupe itachapishwa mpya katika nafasi tofauti.
Haijulikani wazi ya kuashiria urefu inaruhusiwa ikiwa alama zote mbili ni wazi.
Ncha zote mbili za waya zimetiwa muhuri na kofia za mwisho za joto zinazoweza kunuka ili kuzuia ingress ya maji.
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