Appendix I
Appendix I. General specifications of TPP cable
Table I.1 Frequency response for twisted-pair cabling with
copper conductor and PE-insulation (for reference only)
f,
kHz
Primary ratings
Secondary ratings
R~,
Ω
/km
L, H/km*10
-4
G,S/km*10
-4
|Z|,
Ω
α
, dB/km
Conductor diameter 0.4 mm (26 AWG)
20
278
5.51
1.13
225.2
6.81
50
280
5.51
4.24
152.6
9.12
100
283
5.50
11.3
125.7
10.3
250
316
5.46
42.2
113.7
12.2
500
394
5.35
120
110.5
15.6
700
455
5.26
188
109.1
18.2
1000
535
5.15
305
107.7
21.7
Conductor diameter 0.5 mm (24 AWG)
20
181
5.50
1.13
185.1
5.15
50
182
5.50
4.24
133.3
6.48
100
189
5.49
11.3
118.0
7.17
250
234
5.40
42.2
111.6
9.21
500
310
5.23
120
108.8
12.4
700
361
5.26
188
107.4
14.6
1000
424
5.04
305
106.3
17.2
43
