Air Blown fibre unit
Features and Benefits
Standards
Basic Performance Testing parameter
Fibre Unit Attenuation
| Fibre Type | SM G.652D,G.657 |
| Attenuation | 0.40dB/km max @1310nm |
| 0.30dB/km max @1550nm | |
Blowing Test
| Fibre Count | 2 Fibres | 4 Fibres | 6 Fibres | 8 Fibres | 12 Fibres | ||
| Test equipment | PLUMETTAZ:UM25, | ERICSSON:F, | CATWAY:FBT-1.1 | ||||
| Standard duct | 5.0/3.5 mm | ||||||
| Pressure | 7bar / 10bar | ||||||
| Typical blowing distance | 500m / 1000 m | 500m / 1000m | 500m / 1000m | 500m / 1000m | 500m / 800m | ||
| Typical blowing time | 10 min / 18 min | 10 min / 18 min | 12 min / 18 min | 13 min / 18 min | 15 min / 20 min | ||
Mechanical Performance
| Test | Standard | Parameters | Test Results | |
| Tension | EN 18700 A1/501 | Load is 1×W | Additional attenuation ≤0.05dB after test | |
| IEC 60794-1-2-E1 | ||||
| Bend | IEC 60794-1-2–E11A | Diam 40mm×3turns | Additional attenuation ≤0.05dB,after test | |
| 5 cycles at 20℃ | ||||
| Crush | IEC 60794-1-2-E3 | 100 N, 60s | Additional attenuation ≤0.05dB,after test | |
Environment Performance
| Test | Standard | Parameters | Test Results | |
| Temperature Cycle | IEC 60794-1-2-F1 | -30°C, +70°C, | Absolute attenuation ≤0.5dB/km, during test | |
| (2 cycles) | Additional attenuation ≤0.1dB/km, during and after test | |||
| Water Soak | IEC 60794-5 | 1000 hours in water, | (Test after temp cycle) ≤0.07dB/km | |
| 18℃~22℃ | Change compared to start value | |||
| Damp Heat Cycle | IEC 60068-2-38 | 25°C, 65°C, 25°C, 65°C, | Absolute attenuation ≤0.5dB/km, during test | |
| 25°C,-10°C, 25°C | Additional attenuation ≤0.1dB/km, during and after test | |||

