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.
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| Description: |
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Central loose tube cable contains one tube with 2 - 24 fibers, which is filled with water blocking gel. Either aramid yarn or fiber 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:
Central Loose Tube_Unarmored |
Physical Properties:
Fiber Count |
Nominal Weight
(kg/km) |
Nominal Weight
(lb/kft) |
Nominal Outer Diameter
(mm) |
Nominal Outer Diameter
(in) |
Maximum Pulling/Tensile Load |
Installation
(N/lb) |
In Service
(N/lb) |
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 |
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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/Tensile Load |
Installation
(N/lb) |
In Service
(N/lb) |
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 |
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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/Tensile Load |
Installation
(N/lb) |
In Service
(N/lb) |
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 |
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Mechanical Properties:
Minimum Bending Radius:
Under installation: 20×OD
During operation: 10×OD for unarmoured cables;
20×OD for armoured cables.
Temperature Range:
Operating Temperature Range: -40℃(-40℉) to +70℃(+158℉)
Storage Temperature Range: -50℃(-58℉) to +70℃(+158℉) |
Maximum Compressive Load: 3000N
Repeated Impact: 4.4 N.m (J)
Twist (Torsion): 180×10 times, 125×OD
Cyclic Flexing: 25 cycles for armoured cables;
100 cycles for unarmoured cables.
Crush Resistance: 263N/cm (150lb/in) |
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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 |
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Safety Compliance:
General Purpose Grade |
Flammability Test: OFN (UL1581)
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Riser Grade |
Flammability Test: OFNR/FT4 (UL1666)
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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 |
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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
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