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Jelly Filled Telephone Cables (JFTC) - Solid PE 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
135
±8
1.5
3.0
0.5
86
±6
1.0
2.5
0.63
58
±4
1.0
2.0
0.9
28
±2
1.0
2.0

 
Table B
Mutual Capacitance : 52 ±3nF/Km When measured at 800 to 1000 Hz.
 
Table C
Capacitance Unbalance :
a.
Between Pair to Ground at 800 to 1000Hz.
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
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
400
2.2
41.5
0.5
1.4
49.5
2000
3000
400
800
2.4
56.0
0.8
1.8
65.0
3800
5900
200
1200
2.6
70.0
0.8
2.2
80.0
5700
8400
200
1600
2.8
77.0
0.8
2.2
87.0
7500
10500
200
2000
3.0
85.0
0.8
2.2
95.0
9400
12800
200
2400
3.0
95.0
0.8
2.2
105.0
11200
14800
200
0.5
10
2.0
13.2
0.5
1.4
20.2
140
480
1000
20
2.0
17.0
0.5
1.4
24.0
230
630
1000
50
2.0
22.0
0.5
1.4
29.0
470
1000
1000
100
2.0
28.0
0.5
1.4
36.0
840
1500
500
200
2.2
37.5
0.5
1.4
45.5
1560
2400
400
400
2.4
49.0
0.8
1.8
57.5
3000
5000
400
800
2.6
68.0
0.8
2.2
77.5
6000
8700
200
1200
3.0
82.0
0.8
2.2
92.0
9100
12300
200
0.63
20
2.0
19.0
0.5
1.4
26.0
320
780
1000
50
2.0
25.5
0.5
1.4
32.5
680
1200
1000
100
2.0
34.0
0.5
1.4
42.0
1250
2000
500
200
2.2
46.0
0.8
1.4
54.0
2440
4100
400
400
2.6
62.0
0.8
1.8
71.0
4700
7000
200
800
3.0
85.0
0.8
2.2
94.5
9200
12700
200
0.9
20
2.0
25.0
0.5
1.4
32.0
600
1200
1000
50
2.0
35.0
0.5
1.4
42.5
1300
2100
1000
 
 
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