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
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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 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
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 |
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
 |
 |
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 |
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 |
LSFROH Grade |
Halogen Content Test: IEC 60754-1 |
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
