The loose tube in the centre of the optical cable. The next is multimode optical fiber into the inner filled waterproof composite loose tube made of high modulus plastic, surrounded by the non-metallic glass fiber reinforcement outside the loose tube. Then, it’s surrounded by the outer side of the cable core longitudinally with a steel belt, to protect the outer side with a black low smoke halogen-free sheath.
Fiber Optic Cable Testing
In-Process Q.C. | ODTR Testing |
Testing Equipment
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Testing Standard | ● 100% Testing |
Inner Structure
| Item | Contents | Value | |
| Fiber | Number | 2 ~ 16 | 18 ~ 24 |
| Type | G652D | ||
| Color | Such as 3.1 Fiber color | ||
| Water blocking inside the tube | Material | Fiber jelly | |
| Loose tube | Material | PBT | |
| Color | Natural | ||
| Diameter (mm) | 2.8 ± 0.1 | 3.5 ± 0.1 | |
| Thickness (mm) | 0.4 ± 0.05 | 0.45 ± 0.05 | |
| Central strength member | Material | Glass yarn | |
| Outer sheath | Material | LSZH (Resistance UV) | |
| Color | Black | ||
| Thickness (mm) | 1.8 ± 0.2 | ||
| Cable diameter | ± 5% (mm) | 8.4 | 9.2 |
| Cable weight | ± 10% (kg/km) | 93 | 103 |
Application
● Making Patchcord and Pigtail
● Interconnect between instruments and communication equipment
| Item | Contents | Value |
| Max. tensile load | Short term | 2000N |
| Long term | 1000N | |
| Max. crush resistance | Short term | 1500 N/100mm |
| Long term | 600 N/100mm | |
| Min. bending radius | Installation | 20 x cable diameter |
| Operation | 10 x cable diameter | |
| Temperature range | Operation | -40°C ~ +70°C |
| Installation | -20°C ~ +60°C | |
| Storage/transportation | -40°C ~ +70°C |
| Color |
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