Fiber Optic Cables
Central Loose Tube Ribbon Fiber Cable
Application
This cable can provide excellent transmission performance and protection of fibers in a variety of field environments. It is usually used in long haul communication system, subscriber network system, distribution, feeder network system and local area network system.
Description
Central loose tube cable contains one tube with 12 fiber ribbons, which is filled with water blocking gel. The fiber ribbon can be easily separated by hand tool. Either aramid yarn or fiber glass is wound around the tube to provide physical protection and tensile strength. The cable can be jacketed with either PE, PVC or LSZH though PE is the preferred option for water protection purpose. For direct burial, steel wire armour or corrugated steel tape armour is applied with an optional inner jacket of either PVC or PE. An optional Aluminium moisture tape can be incorporated under the jacket for water blocking and shielding purpose. An optional ripcord can be put under the jacket to facilitate jacket removal.
Construction
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Physical Properties
| Fiber Count | Nominal Weight(kg/km) | Nominal Weight(lb/kft) | Nominal Outer Diameter(mm) | Nominal Outer Diameter(in) | Maximum Pulling Load | |
| Installation(N/Ib) | In Service(N/Ib) | |||||
| 12-96 | 166.0 | 111.41 | 16.2 | 0.637 | 2670/600 | 890/200 |
| 108-144 | 208.0 | 139.60 | 18.5 | 0.727 | 2670/600 | 890/200 |
| 156-216 | 244.0 | 163.76 | 20.5 | 0.806 | 2670/600 | 890/200 |
Construction
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Physical Properties
| Fiber Count | Nominal Weight(kg/km) | Nominal Weight(lb/kft) | Nominal Outer Diameter(mm) | Maximum Pulling Load | |
| Installation(N/Ib) | In Service(N/Ib) | ||||
| 12-96 | 233.0 | 156.38 | 14.8 | 2670/600 | 890/200 |
| 108-144 | 276.0 | 185.23 | 16.1 | 2670/600 | 890/200 |
| 156-216 | 316.0 | 212.08 | 17.1 | 2670/600 | 890/200 |
Mechanical Properties
| Minimum Bending Radius: | Maximum Compressive Load: | 3000N | |
| Under installation: | 20×OD | Repeated Impact: | 4.4 N.m (J) |
| During operation | 10×OD for unarmoured cables | Twist (Torsion): | 180×10 times, 125×OD |
| 20×OD for armoured cables | Cyclic Flexing: | 25 cycles for armoured cables. | |
| Temperature Range: | 100 cycles for unarmoured cables. | ||
| Operating Temperature Range: | -40℃(-40℉) to +70℃(+158℉) | Crush Resistance: | 263N/cm (150lb/in) |
| Storage Temperature Range: | -50℃(-58℉) to +70℃(+158℉) |
Fiber Compliance
| Temperature Cycling Tensile Strength Crush Impact Repeated Bending Torsion Kink Cable Bend Cool Bend |
IEC60794-1-2-F2 IEC60794-1-2-E1A IEC60794-1-2-E3 IEC60794-1-2-E4 IEC60794-1-2-E6 IEC60794-1-2-E7 IEC60794-1-2-E10 IEC60794-1-2-E11 IEC60794-1-2-E11 |
Safety Compliance
| General Purpose Grade | Flammability Test: OFN (UL1581) |
| Riser Grade | Flammability Test: OFNR/FT4 (UL1666) |
| Plenum Grade | Flammability Test: OFNP/FT6 (UL 910) |
| FRPVC Grade | Flammability Test: IEC60332-1 |
| LSZH Grade | Halogen Content Test: IEC 60754-1 Acidity Test: IEC 60754; Smoke Emission Test: IEC61034-1/2 |
| LSFROH Grade | Halogen Content Test: IEC 60754-1 Acidity Test: IEC 60754; Smoke Emission Test: IEC61034-1/2 Flammability Test: IEC60332-1 & IEC 60332-3C/A |
| FR Grade | Fire Resistance Test : IEC 60331 / BS 6387 CWZ |
Standard Compliance
Telcordia GR-20 RUS 7 CFR 1755.900 (REA PE-90) ICEA S 87-640
Features
- Large fiber counts with small cable diameter
- Highly adaptable to mass splicing
- Suitable for installation in pipeline
- High quality jelly filled loose tube provides the ribbon fiber satisfactory mechanical and environmental protection.
- Ripcord allows easy jacket removal
- UV or moisture resistant for outdoor application
- Dry water blocking core design for ease of handling
