>> Jelly Filled Polyethlene Telephone Cables (JFTC) - Foam Skin Insulation >> TECHNICAL DATA

 

Table A
Conductor Diameter & Resistance Unbalance :
Nominal Dia
mm
Resistance/Km of Cable
Condr.at 20 deg. C
(ohms)
Tolerance of
Resistance (Ohm/Km)
Maximum % of Resistance
Unbalance
Average
Individual
0.4
147
±3
1.5
2.5
0.5
94
±2
0.75
2.5
0.65
56
±2
0.75
2.0
0.9
28
±2
0.75
2.0

 
Table B
Mutual Capacitance : 50 Max when measured AT 800 to1000Hz
 
Table C
Capacitance Unbalance :
a.
Between Pair to Ground at 800 to 1000 Hz.
Average
750 PF/Km (max)
Individual
3000 PF/Km (max)
b.
Between Pair to Pair
 
Average
50 PF/Km (max)
 
Ind. Combination
200 PF/Km (max)
 
Table D
Attenuation
Conductor
Average Attenuation at 150 Khz
0.4mm
12.0 dB/Km
0.5mm
8.25 dB/Km
0.63mm
6.3 dB/Km
0.90mm
4.40 dB/Km

Table E
Cross-talk at 150 khz
(FE-XT) Ind.
Min. -55dB / Km
(FE-YT) RMS.
Min. -67.8dB / Km
(NE-XT) Ind.
Min. -55dB / Km
 

Table F
Nominal Dia of Condr.mm
No. of Pairs
Noinal Sheath thickmm
Max.OD of U/A Cablemm
Nom. thick of steel tapemm
Jacket thick (Nom)mm
Max O.D. of Amoured Cablemm
Approx. wt. of U/A cablekgs/km
Approx. wt. of Armoured Cablekgs/km
Standard packing length with tolerance of + 10% -25%mtrs.
0.4
10
1.4
9.9
0.2
1.6
15.5
95
268
1000
20
1.4
12.1
0.2
1.6
17.7
152
354
1000
30
1.6
14.2
0.2
1.6
19.8
213
444
1000
50
1.6
16.9
0.2
1.6
22.5
310
578
1000
70
1.8
19.4
0.2
1.6
25.0
417
721
1000
100
1.8
22.2
0.2
1.6
27.8
566
908
1000
150
2.0
25.5
0.2
2.0
31.9
779
1203
1000
200
2.0
28.5
0.2
2.0
34.9
998
1468
500
300
2.2
34.1
0.2
2.0
40.5
1446
1999
500
400
2.4
38.7
0.2
2.0
45.2
1893
2516
500
600
2.6
46.4
0.2
2.0
52.8
2758
3495
200
800
2.7
52.7
0.2
2.0
59.0
3604
4435
200
900
2.8
55.6
0.2
2.0
62.0
4033
4909
200
1200
2.9
63.3
0.2
2.0
69.7
5283
6273
200
1600
3.1
72.4
0.2
2.0
78.7
6954
8079
200
2000
3.1
79.9
0.2
2.0
86.3
8575
9813
200
2400
3.1
86.8
0.2
2.0
93.2
10186
11528
200
 

Table D
Nominal Dia of Condr.mm
No. of Pairs
Noinal Sheath thickmm
Max.OD of U/A Cablemm
Nom. thick of steel tapemm
Jacket thick (Nom)mm
Max O.D. of Amoured Cablemm
Approx. wt. of U/A cablekgs/km
Approx. wt. of Armoured Cablekgs/km
Standard packing length with tolerance of + 10% -25%mtrs.
0.5
5
1.4
8.9
0.2
1.6
14.6
77
236
1000
10
1.4
10.7
0.2
1.6
16.4
119
303
1000
20
1.6
13.7
0.2
1.6
19.3
206
431
1000
30
1.6
15.2
0.2
2.0
21.6
269
540
1000
50
1.8
18.6
0.2
2.0
25.0
416
737
1000
70
1.8
21.0
0.2
2.0
27.5
549
907
1000
100
2.0
24.5
0.2
2.0
30.9
758
1167
1000
150
2.0
28.7
0.2
2.0
35.1
1077
1549
500
200
2.2
32.6
0.2
2.0
39.0
1388
1919
500
300
2.4
38.9
0.2
2.0
45.4
2050
2676
500
400
2.5
44.2
0.2
2.0
50.6
2675
3380
200
600
2.7
53.0
0.2
2.0
59.4
3917
4753
200
800
2.8
60.3
0.2
2.0
66.7
5135
6080
200
900
3.0
66.3
0.2
2.0
72.7
6020
7055
200
1200
3.1
72.8
0.2
2.0
79.2
7578
8710
200
0.65
10
1.4
12.3
0.2
2.0
18.7
169
396
1000
20
1.6
15.9
0.2
2.0
22.3
297
578
1000
30
1.8
18.7
0.2
2.0
25.1
423
747
1000
50
1.8
22.6
0.2
2.0
29.0
647
1029
1000
70
2.0
26.2
0.2
2.0
32.6
881
1316
500
100
2.2
30.6
0.2
2.0
37.0
1221
1722
500
150
2.4
36.5
0.2
2.0
42.8
1773
2362
500
200
2.5
41.3
0.2
2.0
47.7
2310
2971
200
300
2.6
49.2
0.2
2.0
55.6
3361
4141
200
400
2.8
56.2
0.2
2.0
62.6
4419
5303
200
600
3.0
67.5
0.2
2.0
73.9
6493
7547
200
800
3.1
77.0
0.2
2.0
83.4
8535
9730
200
900
3.1
81.2
0.2
2.0
87.6
9541
10798
200
10
1.6
14.9
0.2
2.0
21.3
270
535
1000
20
1.8
19.4
0.2
2.0
25.8
486
819
1000
30
1.8
22.5
0.2
2.0
28.9
685
1064
1000
50
2.0
27.9
0.2
2.0
34.3
1088
1548
400
0.9
70
2.2
32.3
0.2
2.0
38.7
1488
2014
400
100
2.4
37.8
0.2
2.0
44.2
2076
2685
400
150
2.6
45.2
0.2
2.0
51.6
3035
3755
200
200
2.7
51.3
0.2
2.0
57.7
3975
4786
200
300
2.9
61.7
0.2
2.0
68.0
5842
6808
200
400
3.0
70.2
0.2
2.0
76.6
7681
8775
200

Back