Fiber Optic Cables  

Fiber Optic Cables

Multi Loose Under Water Cable


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.


The cable consists of 5 to 36 fi bers containing tubes or fi llers stranded in up to 3 layers around a central

strength member and bound under a PE jacket. Each tube contains 4 -12 fi bers. Solid or stranded steel wire

coated with polyethylene is usually used as central strength member. Fiber glass reinforced plastics (FRP) will be

used as central strength member if non metallic construction is required. Either aramid yarn or fi ber glass is

wound around the tube to provide physical protection and tensile strength. The cable incorporates the first

layer of PE inner jacket, a layer of corrugated steel tape armour, the second layer of PE inner jacket, a layer of

steel wire armour and PE outer jacket. An optional Aluminium moisture tape can be incorporated under the

jacket for water blocking and shielding purpose. An optional ripcord is located under the jacket to facilitate

jacket removal.


Fiber Optic Cables

Fiber Optic Cables

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)
2-24 650.0 436.24 20.3 0.798 8000/1800 2650/595
26-36 716.0 480.54 21.6 0.849 8000/1800 2650/595
38-72 1008.0 676.51 25.2 0.991 8000/1800 2650/595

Mechanical Properties

Minimum Bending Radius:   Maximum Compressive Load: 4000N for unarmored cables;
Under installation: 20×OD   6000N for armoured cables
During operation 0×OD for unarmoured cables Repeated Impact: 4.4 N.m (J)
  20×OD for armoured cables Twist (Torsion): 180×10 times, 125×OD
Temperature Range:   Cyclic Flexing: 25 cycles for armoured cables.
Operating Temperature Range: -40℃(-40℉) to +70℃(+158℉)   100 cycles for unarmoured cables.
Storage Temperature Range: -50℃(-58℉) to +70℃(+158℉) Crush Resistance: 220N/cm (125lb/in)

Fiber Compliance

Temperature Cycling
Tensile Strength
Repeated Bending
Cable Bend
Cool Bend


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


Loose tube jelly filled for superior fiber protection

Colored coded fibers 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

Sufficient waterproof to withstand water penetration