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High-Quality Optical Logging Cable GX-W-2B1-2A1a-GB-5.6 (732) - China Suppliers and Factory Products
| Construction | ||
| Fiber optic Unit Tube | 2.20 mm | 0.0866″ |
| Inner Protection | 2.60 mm | 0.1024″ |
| Armor Inner | 12*0.79 mm (916N) | 12*0.0308″ (204 lbs) |
| Outer | 18*0.79 mm (916N) | 18*0.0308″ (204 lbs) |
| Physical | ||
| Cable Diameter | 5.6 mm ± 0.20 mm | 0.220″ ± 0.0078″ |
| Cable Weight in Air | 152 kg/km | 102 lbs/kft |
| Temp Rating | 150 ℃ | 300 ℉ |
| Mechanical | ||
| Cable Breaking Strength | 25 kN | 5600 lbs |
| Max. Suggested Working Tension | 12.5 kN | 2800 lbs |
| Min. Shave Diameter | 600 mm | 23.6″ |
| Cable Stretch Coefficient | 2.5 m/km/5kN | 2.2 ft/kft/klbs |
| Attenuation | ||
| Single-mode Fiber Decline @ 1310 nm | 0.40 dB/km | 0.1219 dB/km |
| Single-mode Fiber Decline @ 1550 nm | 0.30 dB/km | 0.0914 dB/km |
| Multi-mode Fiber Decline @ 850 nm | 3.5 dB/km | 1.0668 dB/km |
| Multi-mode Fiber Decline @ 1300 nm | 1.2 dB/km | 0.3658 dB/km |
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Frequently Asked Questions
Q
What is the maximum operating temperature of this fiber optic cable?
This cable is rated for a maximum temperature of 150°C (300°F), making it suitable for high-temperature downhole and industrial environments where standard cables would fail.
Q
What is the breaking strength and recommended working tension of this cable?
The cable has a breaking strength of 25 kN (5,600 lbs). The maximum suggested working tension is 12.5 kN (2,800 lbs), which is 50% of the breaking strength to ensure a safe operational safety margin.
Q
What fiber types are supported, and what are their attenuation values?
The cable supports both single-mode and multi-mode fibers. Single-mode attenuation is 0.40 dB/km at 1310 nm and 0.30 dB/km at 1550 nm. Multi-mode attenuation is 3.5 dB/km at 850 nm and 1.2 dB/km at 1300 nm.
Q
What is the outer diameter and weight of the cable?
The cable has an outer diameter of 5.6 mm ± 0.20 mm (0.220″ ± 0.0078″) and weighs 152 kg/km (102 lbs/kft) in air, providing a compact and lightweight solution for deployment in space-constrained wellbores.
Q
What is the minimum shave diameter and why does it matter?
The minimum shave (sheave) diameter is 600 mm (23.6″). This specification is critical for spooling and deployment operations — using a sheave smaller than this minimum can cause microbending losses or permanent damage to the fiber optic elements inside the cable.
Q
How is the armor construction designed to protect the fiber optic core?
The cable features a dual-layer armor design: an inner armor layer of 12 × 0.79 mm wires and an outer armor layer of 18 × 0.79 mm wires, each providing 916 N (204 lbs) of resistance. This double-armored construction protects the fiber optic unit tube from crush loads, tension, and harsh downhole conditions.