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Jelly Filled Cables Manufacturer and Exporter |
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CONDUCTOR : Solid Annealed Copper wire in sizes 0.4 mm, 0.5 mm, 0.63 mm and 0.9 mm.
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INSULATION :Polyethylene, colour coded inaccordance with standard telephony industry code.
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TWISTED PAIRS :Insulated Conductors twisted into pairs with varying lays to minimize crosstalk and with specified colour combinations to provide pair identification.
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CABLE ASSEMBLY :10 or 20 pairs are stranded to form a group called unit. Units/Super Units make up cables of 50 pairs and above. The Interstices between pairs are filled with water resistant filling compound.
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CORE WRAP : Non-Hygroscopic Dielectric Tape applied Hellically or longitudinally over cable core fully filled with filling compound.
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ALUMINIUM SHIELD :Electrically continuous 0.2 mm thick aluminium tape coated with co-polymer on both sides applied longitudinally and sealed at overlap forms a moisture barrier.
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SHEATH :Black LDPE with excellent environmental stress cracking resistance properties.
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WATER PROOF BEDDING & ARMOUREING : Galvanised Double Steel tape applied hellically over water proof bedding.
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JACKET :Black LDPE with excellent environmental stress cracking resistance properties.
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| IDENTIFICATION & LENGTH MARKING :Manufacturer's identification, pair count, conductor size year of manufacture are surface marked on jacket at one meter intervals |
Cable Dimensions
| Cable Size |
MAXIMUM DIAMETER over sheath for cables of Conductor diameter in mm |
MAXIMUM DIAMETER over jacket for cables of Conductor diameter in mm
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Number of pairs |
Conductor diameter (mm) |
Conductor diameter (mm) |
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Normal |
Actual |
0.4 |
0.5 |
0.63 |
0.9 |
0.4 |
0.5 |
0.63 |
0.9 |
| - |
- |
- |
14.0 |
- |
- |
- |
20.2 |
- |
-
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| 20 |
20 |
- |
17.0 |
19.0 |
25.0 |
- |
24.0 |
26.0 |
32.0 |
| 50 |
50 |
- |
22.0 |
25.5 |
35.0 |
- |
29.0 |
32.5 |
42.5
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| 100 |
100 |
- |
28.0 |
34.0 |
47.0 |
- |
36.0 |
42.0 |
55.5
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| 200 |
200 |
- |
37.0 |
46.0 |
65.0 |
- |
45.5 |
54.0 |
73.0 |
Cable Weights and Nominal Lengths
| Cable Size |
0.4 mm |
0.5 mm
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Number of pairs |
Approx. Weight of Cables (Kg / Km) |
Nominal despatch Length (meters) |
Approx. Weight of Cables ( Kg / Km ) |
Nominal despatch Length (meters) |
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Normal |
Actual |
UA |
A |
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UA |
A |
0.9 |
| 10 |
10 |
116 |
429 |
- |
150 |
490 |
1000
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| 20 |
20 |
175 |
535 |
- |
235 |
634 |
1000 |
| 50 |
50 |
330 |
790 |
- |
460 |
985 |
1000 |
| 100 |
100 |
570 |
1140 |
- |
820 |
1480 |
500 |
| 200 |
200 |
1050 |
1785 |
- |
1515 |
2380 |
400 |
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Cable Size |
0.63 mm |
0.9 mm
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Number of pairs |
Approx. Weight of Cables (Kg / Km) |
Nominal despatch Length (meters) |
Approx. Weight of Cables ( Kg / Km )
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Nominal despatch Length (meters) |
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Normal |
Actual |
UA |
A |
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UA |
A |
0.9
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10 |
10 |
- |
- |
- |
- |
- |
-
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20 |
20 |
325 |
790 |
1000 |
585 |
1155 |
1000
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50 |
50 |
660 |
1280 |
1000 |
1260 |
2085 |
1000/500
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100 |
100 |
1215 |
2020 |
500 |
2400 |
4065 |
400
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200 |
200 |
2290 |
3925 |
400 |
4450 |
7420 |
200
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Note
All Cable Diemensions and Weights are Subject to Manufacturing Tolerance.
Standard Length May Vary + 10%, - 25%
Cable can also be provided in Lengths otger than mentioned above againts Specific Length
MM = MilliMeter, M = Meter, U/A = Unarmoured Cable, A = Armoured Cable, KM = KiloMeter, KG = Kilogram
| Polythene Sheath Thickness |
Thickness of Jacket Over Steel Tape Armour |
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SPECIFIED DIAMETER OF CABLE OVER SHEATH (mm) |
NOMINAL
SHEATH THICKNESS (mm) |
SPECIFIED DIAMETER OF CABLE OVER JACKET (mm) |
NOMINAL THICKNESS OF POLYTHENE JACKET (mm) |
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ABOVE |
UP TO |
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ABOVE |
UP TO |
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- |
30 |
2.0 |
- |
46 |
1.4 |
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30 |
40 |
2.2 |
46 |
64 |
1.8 |
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40 |
50 |
2.4 |
64 |
- |
2.2 |
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50 |
60 |
2.6 |
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60 |
70 |
2.8 |
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70 |
- |
3.0 |
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Thickness of Galvanised Steel Tape for Armouring
COPPER CONDUCTOR DIA. (mm)
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RESISTANCE |
(OHMS / KM) |
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MINIMUM |
MAXIMUM |
| 0.40 |
127 |
143
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| 0.50 |
80 |
92 |
| 0.63 |
54 |
62
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| 0.90 |
26 |
30 |
1.1 Resistance Balance ( % ) :
Resistance Unbalance shall be Calculated with the Following Formula
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- R (%) = |
RMAX - RMIN
RMAX + RMIN |
X 100 |
COPPER CONDUCTOR DIA. (mm)
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RESISTANCE |
UNBALANCE (%) |
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AVERAGE |
MAXIMUM |
| 0.40 |
1.5 |
3.0
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| 0.50 |
1.0 |
2.5
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| 0.63 |
1.0 |
2.0
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| 0.90 |
1.0 |
2.0
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3 MUtual Capacitance (nF/Km):
| MINIMUM INDIVIDUAL |
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47.5 |
| MINIMUM AVERAGE |
: |
49.0 |
| MAXIMUM AVERAGE |
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55.0 |
| MAXIMUM INDIVIDUAL |
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56.5 |
4. Capacitance Unbalance ( pF / KM )
| 4.1 PAIR TO PAIR ( pF / KM ) : |
4.2 PAIR TO GROUND ( pF / KM ) : |
| MAX . AVG . |
= |
50 |
| MAX INDIVIDUAL |
= |
200 |
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| MAX . AVG . |
= |
750 |
| MAX INDIVIDUAL |
= |
3000 |
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5. ATTENUATION ( dB / KM ) :
The Correceted Attenuation Values to 20 Degrees C Shall Not Exceed the Following Values.
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COPPER CONDUCTOR DIA. (mm) |
MAX. AVERAGE ATTENUATION AT 150 KHZ (dB / KM) |
| 0.40 |
12.00
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| 0.50 |
8.25
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| 0.63 |
6.30
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| 0.90 |
4.40
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6. CROSS TALK
| 6.1 PAIR TO PAIR NEAR END CROSS TALK (NEXT) AT 150 KHZ H : |
6.1ELFEXT ( dB / KM ) : |
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