Description
Figure 8 self-supporting aerial cable GYTC8S Specification
1. Cable Description
The fibers,either of single-mode or multimode type, are placed in a loose tube made of high modulus plastic. The tubes are filled with a water-resistant filling compound. A steel wire locates in the center of core as a metallic strength member. The tubes (and fillers) are stranded around the strength member into a compact and circular cable core. After PSP is applied around the cable core, this part of cable accompanied with the stranded wires as the supporting part are completed with a polyethylene (PE) sheath to be figure 8 structure. This kind of cable is specifically applied for self-supporting aerial installation.
2. Cable Drawing
Note : Structure drawing just for reference.
3. Application
This specification covers the general requirements of Figure 8 self-supporting cable for aerial , duct and direct buried.
4. Characteristics
- Accurate fiber excess length ensure a good performance of tensile strength and temperature.
- High strength loose tube that is hydrolysis resistant and special tube filling compound ensure a critical protection of fiber.
- The following measures are taken to ensure the cable watertight:
Steel wire as the central strength member
Loose tube filling compound
100% cable core filling
PSP enhancing moisture-proof
5. Features:
5.1 Fiber Allocation Scheme
| Fiber number | Tube number | Fiber per tube | Fiber type |
| 24-144 | 1-12 | 2-12 F/Tube | OS1 OS2
OM1,OM2, OM3,OM4 |
5.2 Cable construction details
| Items | Description | |
| Number of fiber | 24-144cores | |
| Moisture Barrier | Water blocking system | |
| Central strength member | Material | FRP |
| size | 1.4mm | |
| Mental strength member | material | Steel wire |
| diameter | 1.0mm*7 | |
| Gallus | material | PE |
| diameter | 2.2mm*2.8mm | |
| Loose tube | material | PBT |
| diameter | Ф2.2(outer/inner) | |
| Tube-filling | material | Tube filling compound |
| Outer armored | materail | corrugated steel tape |
| Outer sheath | material | PE |
| diameter | 1.70±0.2mm | |
6. Standard color of fiber and tube
The color code of the tubes and the individual fibers, shall be in accordance with the table as below:
| Standard Colour Identification | |||||||
| No. | 1 | 2 | 3 | 4 | 5 | 6 | |
| Color | Blue | Orange | Green | Brown | Slate | White | |
| No. | 7 | 8 | 9 | 10 | 11 | 12 | |
| Color | Red | Black | Yellow | Violet | Pink | Aqua | |
Note: The color can be required by customers.
7. Cable Mechanical characteristic
| Items | Cable diameter | Weight | |
| 24 cores to60 cores | 5.5*10.0±0.5mm | 145 ±5 kg/km | |
| 72cores | 13.1±0.5mm | 290±10kg/km | |
| 96cores | 14.7±0.5mm | 330±10kg/km | |
| 144cores | 17.9±0.5mm | 420±10kg/km | |
| Installation Temperature range | -15–+60℃ | ||
| Operation and transport temperature | -40-+70℃ | ||
| Min Bending Radius(mm) | Long term | 10D | |
| short term | 20D | ||
| Allowable Tensile Strength(N) | Long term | 3000 | |
| short term | 7000 | ||
| Crush Load (N/100mm) | Long term | 1000 | |
| short term | 3000 | ||
8. Requirement for Order:
1.Fiber sort: Single mode G652,G655,G657, Multi mode 50/125,62.5/125,OM3,OM4.
2.Fiber brand: YOFC, Corning, Fiberhome Fujikura, OFS etc.
3.Sheath material: PE,LSZH( can be required).
4.Sheath color: Black ,can be required.
5.The fiber and tube color: according to stranded color, can be required.
6.The cable Size: shall be in accordance with the table, can be required.
7.Length of cable: generally is 2KM, can be required.
8.Other requirement:can be negotiated.
9. Fiber characteristic
| Fiber style | Unit | SM
G652D |
MM
50/125 |
MM 62.5/125 | ||
| condition | nm | 1310/1550 | 850/1300 | 850/1300 | ||
| attenuation | dB/km | ≤0.36/0.23 | ≤3.0/1.0 | ≤3.0/1.0 | ||
| Dispersion | 1310nm | Ps/(nm*km) | ≤18 | ….. | ….. | |
| 1550nm | Ps/(nm*km) | ≤22 | ….. | ….. | ||
| Bandwidth | 850nm | MHZ. KM | ….. | ≧400 | ≧160 | |
| 1300nm | MHZ. KM | ….. | ≧800 | ≧500 | ||
| Zero dispersion wavelength | nm | ≧1302,
≤1322 |
….. | ….. | ||
| Zero dispersion slope | nm | ≤0.091 | ….. | ….. | ||
| PMD Maximum Individual Fiber | ≤0.2 | ….. | ….. | |||
| PMD Design Link Value | Ps(nm2*km) | ≤0.08 | ….. | ….. | ||
| Fiber cutoff wavelength λc | nm | ≧1180,≤1330 | ….. | ….. | ||
| Cable cutoff wavelength λcc | nm | ≤1260 | ….. | ….. | ||
| MFD | 1310nm | um | 9.2±0.4 | ….. | ….. | |
| 1550nm | um | 10.4±0.8 | ….. | ….. | ||
| Numerical Aperture(NA) | …… | 0.200±0.015 | 0.275±0.015 | |||
| Step(mean of bidirectional measurement) | dB | ≤0.05 | ≤0.10 | ≤0.10 | ||
| Irregularities over fiber length and point discontinuity | dB | ≤0.05 | ≤0.10 | ≤0.10 | ||
| Difference backscatter coefficient | dB/km | ≤0.03 | ≤0.08 | ≤0.10 | ||
| Attenuation uniformity | dB/km | ≤0.01 | ……. | ……. | ||
| Core diameter | um | …… | 50±1.0 | 62.5±2.5 | ||
| Cladding diameter | um | 125.0±0.1 | 125.0±0.1 | 125.0±0.1 | ||
| Cladding non-circularity | % | ≤1.0 | ≤1.0 | ≤1.0 | ||
| Coating diameter | um | 242±7 | 242±7 | 242±7 | ||
| Coating/chaffinch concentrically error | um | ≤12.0 | ≤12.0 | ≤12.0 | ||
| Coating non circularity | % | ≤6.0 | ≤6.0 | ≤6.0 | ||
| Core/cladding concentricity error | um | ≤0.6 | ≤1.5 | ≤1.5 | ||
| Curl(radius) | um | ≤4 | ….. | ….. | ||
10. Cable marking and cable reel marking
10.1 Cable marking
The cable sheath shall be marked with white characters at intervals of one meter with following information:
- Purchaser’s name
- Cable type
- Fiber type and counts
- Year of manufacture
- Length marking
Notice: cable mark is available if requested by customer.
10.2 Cable reel:
Details given below shall be marked with a weather materials on both outer sides of the reel flange :
- Cable type and fiber counts
- Length of cable in meters
- Year of manufacture
Notice: shipping mark is available if requested by customer.
11. Packing Informations
- Packing material: Wooden drum
- Packing length: standard length of cable shall be 2 km. Other cable length is also available if required by customer
12. Our certificates :
1) ISO9002
2) SGS, ROHS
3) ULE329066
4) REACH
13. Testing Lab:
| No | Device name | No | Device name |
| 1 | Optical time domain reflectometer (OTDR) | 8 | GNZV Cable Torsion Testing Machine |
| 2 | Fiber Polarization Mode Dispersion | 9 | GQNV Cable Flexing Testing Machine |
| 3 | Fiber Dispersion ,Strain Tester | 10 | GJRV Cable Winding Testing Machine |
| 4 | High Low Temperature Test Chamber | 11 | GZDV Cable Vibration Testing Machine |
| 5 | Cable Impact Testing Machine | 12 | Cable Water Penetration Test |
| 6 | Cable Squash Tensile Testing Machine | 13 | Fusion Splicer |
| 7 | GWQV Cable Bending Tester | 14 | Cable Water Penetration Test Rig |
Fiber Optic Cable Mechanical Performance Testing Laboratory
- Main Testing Type: Precision Test and Mechanical Test.
- Precision Testing Machine: EXFO OTDR, EG&G PMD-440,CD-400.
- Mechanical Performance Testing : Temperature, Impact, Tensile, Bending, Torsion, Flexing, Winding, Vibration, Water Penetration, Fusion Splicer, Water Penetration.
So a comperhensive are available.
14. Our advantages:
- Professional cable manufacturer.
- About 10 years experiences in cable industry.
- MOQ just 1Km.
- ISO, UL , ROSH,REACH…certifications.
- Can be customized production of fiber optic cable.
- Independent Lab with full set of testing machines.
- OEM for 3M , TYCO more than 5 years.
- Supply to Thai telecom, Doha airport, Doha telecom, Dubai telecom, Dubai telecom ,Slovenia telecom and Yemen telecom and other big projects.
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