Fiber Optic Cables
Central Loose Tube Under Water Cable
Application
This cable exhibits excellent tensile strength and side press retardancy, having excellent mechanical and environmental performance. Featured by its thin diameter and light weight, it is best suited for underwater condition, junction communication system and long haul communication system.
Description
Central loose tube cable contains one tube with 2 - 24 fibers, which is filled with water blocking gel. A water swelling tape is helically wrapped around the cable core. Either aramid yarn or fiber glass is wound around the tube to provide physical protection and tensile strength. The cable is jacketed with PE for water protection purpose. For direct burial, steel wire armour and corrugated steel tape armour are applied with an optional PE inner jacket. 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) | |||||
| 2-12 | 352.0 | 236.24 | 14.0 | 0.553 | 8000/1800 | 2650/595 |
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
- Loose tube jelly filled for superior fiber protection
- Colored coded fibers and binders for quick and easy identification during installation.
- High tensile strength design
- Superior mechanical and environmental performance
- Rugged and lightweight design
- Durable construction to withstand high water pressure
- Sufficient waterproof to withstand water penetration
