Tuam Tshoj sab saum toj 3 cua tshuab micro fiber optic cable tsum, GL muaj ntau tshaj 17 xyoo kev, Niaj hnub no, peb yuav qhia ib tug tshwj xeeb fiber optic cable SFU (Smooth Fiber Unit ).
Lub Smooth Fiber Unit (SFU) muaj ib pob ntawm lub vojvoog qis qis, tsis muaj dej peak G.657.A1 fibers, encapsuled los ntawm ib tug qhuav acrylate txheej thiab tiv thaiv los ntawm ib tug du, me ntsis ribbed polyethylene outersheath, rau daim ntawv thov nyob rau hauv lub nkag network. Installation: tshuab rau hauv microducts ntawm 3.5mm. sau 4.0mm. (hauv txoj kab uas hla).
1. General
1.1 Qhov kev qhia tshwj xeeb no suav nrog cov kev xav tau rau kev muab khoom ntawm ib hom optical fiber ntau cables.
1.2 Hom tib hom optical fiber ntau ua tau raws li qhov yuav tsum tau muaj ntawm qhov kev qhia tshwj xeeb no thiab feem ntau ua tau raws li cov lus pom zoo kawg ITU-T Daim Ntawv Pom Zoo G.657A1
2. Fiber yam ntxwv
2.1 G.657A
2.1.1 Geometric yam ntxwv
Technical Datas:
| Attenuation (dB/km) | @1310nm | ≤0.34dB/km |
|
| @1383nm | ≤0.32dB/km |
|
| @1550nm | ≤0.20dB/km |
|
| @1625nm | ≤0.24dB/km |
| Dispersion | @1550nm | ≤18ps/(nm.km) |
| @1625nm | ≤ 22ps / (nm.km) | |
| Zero-Dispersion wavelength | 1302-1322 nm | |
| Zero-Dispersion nqes hav | 0.089ps (nm2.km) ceev | |
| Hom teb txoj kab uas hla @ 1310nm | 8.6 ± 0.4 hli | |
| Hom teb txoj kab uas hla @ 1550nm | 9.8 ± 0.8 hli | |
| PMD Max.value rau fiber ntau ntawm lub reelMax.tsim tus nqi rau qhov txuas | 0.2ps/km 1/2 tsi0.08ps/km 1/2 tsi | |
| Cable txiav tawm wavelength, λcc | ≤1260nm | |
| Geometrical yam ntxwv | ||
| Cladding txoj kab uas hla | 124.8 ± 0.7 hli | |
| Cladding tsis-circularity | ≤ 0.7% | |
| Core/Cladding Concentricity yuam kev | ≤ 0.5 hli | |
| Fiber diam nrog txheej (tsis muaj xim) | 245 ± 5 hli | |
| Cladding/Coating concentricity yuam kev | ≤ 12.0 hli | |
| Curl | ≥4m | |
| Mechanical yam ntxwv | ||
| Ua pov thawj | ≥0.69 Gpa | |
| Macro-khoov poob ntawm 1550nm Ø20mm, 1 tig | ≤ 0.25dB | |
| Ø 30mm, 10 tig | ≤ 0.75dB | |
| Macro-khoov poob ntawm 1625nm Ø20mm, 1 tig | ≤ 1.5 dB | |
| Ø 30mm, 10 tig | ≤1.0dB | |
| Environmental yam ntxwv @1310nm & 1550nm | ||
| Kub induced attenuation (-60 ℃ ~ + 85 ℃) | ≤ 0.05dB | |
| Qhuav cua sov indeced attenuation (85 ℃ ± 2 ℃, RH85%, 30 hnub) | ≤ 0.05dB | |
| Dej raus dej indeced attenuation (23 ℃ ± 2 ℃, 30 hnub) | ≤ 0.05dB | |
| Damp kub indeced attenuation (85 ℃ ± 2 ℃, RH85%, 30dyas) | ≤0.05dB/km | |
3 Optical Fiber Cable
3.1 Hla ntu
| Fiber ntau optic | Hom | Ib hom G657A1 2-12 |
| Txoj kab uas hla | mm | 1.1-1.2 |
| Qhov hnyav ntawm kab | (kg/km) | 2.2 ± 20% |
| Lub neej | xyoo | ≥ 25 |
| Tso cai Tensile Strength | Lub sij hawm ntev: | 20 N |
| Crush lub zog | Lub sij hawm luv luv: | 100N / 100 hli |
| Kuv Bending raduis | Kev ua haujlwm | 20 OD |
| Tso | 15 OD | |
| Qhov kub thiab txias | Tso | -10 ～ + 60 ℃ |
| Kev thauj mus los & kev ua haujlwm | -20 ～ + 70 ℃ |
3.3 Kev ua haujlwm
| NO | Yam khoom | KEV TIV THAIV | SPECIFICATION |
| 1 | Tensile kev ua haujlwm IEC 60794-1-21-E1 | - Lub sijhawm luv luv: 20N - Sijhawm: 5 feeb | Poob hloov £ 0.10 dB@1550 nm(tom qab kuaj)- Fiber ntau £ 0.60%- Tsis muaj sheath puas |
| 2 | Crush kev kuaj IEC 60794-1-21-E3 | Load: 100 N / 100mm- Sijhawm: 5 feeb- Ntev: 100 mm | Poob hloov £ 0.10 dB@1550 nm(thaum kuaj)- Tsis muaj sheath puas |
| 3 | Rov qab khoov IEC 60794-1-21-E6 | - Khoov vojvoog.: 20 × D- Thauj khoom: 25N- Flexing tus nqi: 2sec / voj voog- No. of cycle: 25 | - Tsis muaj fiber ntau tawg- Tsis muaj sheath puas |
| 4 | Dej nkag IEC 60794-1-22-F5 | - Qhov siab ntawm dej: 1m- Qauv Length: 3 m- Sijhawm: 24 teev | - Tsis muaj dej los ntawm cov tub ntxhais cable sib dhos |
| 5 | Twist IEC 60794-1-21-E7 | - Ntev: 1 m- Thauj khoom: 40N- Twist tus nqi: ≤60sec / voj voog- Lub kaum sab xis: ± 180 °- Tsis muaj lub voj voog: 5 | Poob hloov £ 0.10 dB@1550 nm(thaum kuaj)- Tsis muaj sheath puas |
| 6 | Kub Kev caij tsheb kauj vab IEC 60794-1-22-F1 | - Kev ntsuas kub:+20oC → - 20oC → + 70oC → + 20oC- Tus naj npawb ntawm lub voj voog: 2 lem- Sijhawm rau txhua kauj ruam: 12 teev | - Poob hloov £ 0.15dB/km@1550 nm(thaum kuaj)- Poob hloov £ 0.05dB/km@1550 nm(tom qab kuaj)- Tsis muaj sheath puas |
4. Sheath marking
5,Pob Thiab Nruas
Cov cables tau ntim rau hauv thawv, coiled ntawm Bakelite & Fumigated ntoo nruas. Thaum lub sij hawm kev thauj mus los, cov cuab yeej zoo yuav tsum tau siv kom tsis txhob ua kom puas lub pob thiab ua kom yooj yim. Cables yuav tsum tau tiv thaiv los ntawm noo noo; khaws cia kom deb ntawm qhov kub thiab txias; tiv thaiv los ntawm kev khoov thiab crushing; tiv thaiv los ntawm mechanical kev nyuaj siab thiab kev puas tsuaj.
Packing ntev: 2000-5000m / reel.
