Fiber Optic Cables  
 

Fiber Optic Cables

Central Loose Tube Cable

Application

This cable is characterized by light weight and small diameter, suitable for both aerial and duct installation. The cable can also be used for direct burial for armoured option.

Description

Central loose tube cable contains one tube with 2 - 24 fi bers, which is fi lled with water blocking gel. Either aramid yarn or fi ber glass is wound around the tube to provide physical protection and tensile strength. The cable can be jacketed with either PE or LSZH. PE is the preferred option in outdoor environment for water protection purpose. For direct burial, either steel wire armour or corrugated steel tape armour is applied with an optional inner jacket of either PVC, PE or LSZH. An Aluminium moisture tape can be incorporated under the jacket for water blocking and shielding purpose. A ripcord is located under the jacket to facilitate jacket removal.

 Construction

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)
2-12 60.0 40.27 7.5 0.296 1500/337 445/100
14-24 65.0 43.62 8.5 0.335 1500/337 445/100

 Construction

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)
2-12 125.0 83.89 10.5 0.414 2670/600 890/200
14-24 145.0 97.32 12.0 0.473 2670/600 890/200

 

Construction

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)
2-12 170.0 114.09 10.5 0.414 8000/1800 2650/595
14-24 245.0 164.43 12.0 0.473 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 construction provides environmental protection .
Loose tube jelly filled for superior fiber protection .
Colored coded fibers and binders for quick and easy identification during installation.
Very lightweight and flexible design allows for easy installation .
UV or moisture resistant for outdoor application .
Compact design with small cable diameter .
All Dielectric strength member .
Anti-termite and rodent protection as options .
Optional Aluminium moisture barrier for EMI protection .