Fiber Optic Cables

Multi Loose Tube Cable

    Application

The multi loose tube non metallic cable is designed for outside plant, which is prone to electrical interference.

    Description

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 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 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)

2-36

110.0

73.83

120.

0.472

2670/600

800/180

38-72

120.0

80.54

12.6

0.496

2670/600

800/180

74-84

135.0

90.60

13.5

0.531

2670/600

800/180

76-96

150.0

100.67

14.0

0.551

2670/600

800/180

98-108

170.0

114.09

15.0

0.590

2670/600

800/180

110-120

190.0

127.52

15.5

0.610

2670/600

800/180

122-132

210.0

140.94

16.5

0.649

2670/600

800/180

134-144

230.0

154.36

17.5

0.688

2670/600

800/180

146-216

250.0

167.79

18.0

0.708

2670/600

800/180

218-264

300.0

201.34

19.5

0.767

2670/600

800/180

266-312

350.0

234.90

21.0

0.826

2670/600

800/180

314-360

400.0

268.46

22.5

0.885

2670/600

800/180

   Construction

Fiber Optic Cables
Fiber Optic Cables

    Physical Propertie

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)

2-36

210.0

140.94

15.0

0.590

2670/600

800/180

38-72

230.0

154.36

15.5

0.610

2670/600

800/180

74-84

250.0

167.79

16.5

0.649

2670/600

800/180

76-96

270.0

181.21

17.0

0.669

2670/600

800/180

98-108

295.0

197.98

17.5

0.688

2670/600

800/180

110-120

320.0

214.77

18.5

0.728

2670/600

800/180

122-132

355.0

238.26

19.0

0.748

2670/600

800/180

134-144

370.0

248.32

20.0

0.787

2670/600

800/180

146-216

390.0

261.74

21.0

0.826

2670/600

800/180

218-264

455.0

305.35

22.5

0.885

2670/600

800/180

266-312

515.0

345.64

24.0

0.944

2670/600

800/180

314-360

580.0

389.26

26.0

1.023

2670/600

800/180


   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)

2-36

700.0

469.80

21.0

0.826

8000/1800

2650/595

38-72

830.0

557.05

23.5

0.925

8000/1800

2650/595

74-84

870.0

583.89

24.0

0.944

8000/1800

2650/595

76-96

900.0

604.03

24.5

0.964

8000/1800

2650/595

98-108

950.0

637.58

26.0

1.023

8000/1800

2650/595

110-120

1000.0

671.14

27.0

1.062

8000/1800

2650/595

122-132

1050.0

704.70

28.0

1.102

8000/1800

2650/595

134-144

1100.0

738.26

29.0

1.141

8000/1800

2650/595

146-216

1300.0

872.48

31.0

1.220

8000/1800

2650/595

218-264

1400.0

939.60

33.0

1.299

8000/1800

2650/595

266-312

1500.0

1006.71

35.0

1.377

8000/1800

2650/595

314-360

1600.0

1073.83

37.0

1.456

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 10×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
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 fi lled for superior fi ber protection
• Colored coded fi bers and binders for quick and easy identifi cation during installation.
• UV resistant for outdoor application
• Dry water blocking core design for ease of handling
• Anti-termite and rodent protection as options
• Optional Aluminium moisture barrier for EMI protection and water protection