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Fiber Optic Cables
Loose 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
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 |
IEC60794-1-2-F2 |
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 fi lled for superior fi ber protection
Colored coded fi bers and binders for quick and easy identifi cation during installation.
High tensile strength design
Superior mechanical and environmental performance
Rugged and lightweight design
Durable construction to withstand high water pressure
Suffi cient waterproof to withstand water penetration