
1.The optical fiber unit is positioned in the centre.Two parrallel fiber reinforced(FRP)are
3.Main mechanical & environmental performance test
Item | Test Method | Acceptance Condition |
Tensile Strength IEC 794-1-2-E1 | - Load: Short term tension - Length of cable: about 50m | - Fiber strain £ 0.6% - No fiber break and no sheath damage. |
Crush Test IEC 60794-1-2-E3 | - Load: Short term crush - Load time: 1min | - Loss change £ 0.1dB@1550nm - No fiber break and no sheath damage. |
Impact Test IEC 60794-1-2-E4 | - Points of impact: 3 - Times of per point: 1 - Impact energy: 1J | - Loss change £ 0.1dB@1550nm - No fiber break and no sheath damage. |
Repeated Bending IEC 60794-1-2-E6 | - Bending radius: 20 x OD - No. of cycle: 30 | - Loss change £ 0.1dB@1550nm - No fiber break and no sheath damage. |
Torsion IEC 60794-1-2-E7 | - Length: 1m - Twist angle: ±180° - No. of cycle: 10 | - Loss change £ 0.1dB@1550nm - No fiber break and no sheath damage. |
Compound flow IEC 60794-1-2-E14 | - Length: 30cm - Temperature:70 oC±2 oC - Period:24h | - No outflow or dripping |
Temperature Cycling IEC 60794-1-2-F1 | - Temperature:+20oC→-40oC→+60oC →+20oC - Time of each step: 12h - Number of cycle: 2 | - Loss change £ 0.1dB/km@1550nm - No fiber break and no sheath damage. |














