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TAU-4M.IP Subscriber gateway
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APPENDIX A. CALCULATION OF PHONE LINE LENGTH
Table - Electrical resistance/cable type relationship for 1km of DC subscriber cable lines.
Cable grade for subscriber
lines of local exchange
network
Core diameter,
mm
Electrical
resistance of
1km circuit, Ω,
max
Line length
(another TA),
km
Line length
(TA Rus), km
TPP, TPPep, TPPZ, TPPepZ,
TPPB,TPP epB, TPPZB, TPPBG,
TPPepBG, TPPBbShp,
TPPepBbShp, TPPZBbShp,
TPPZepBbShp, TPPt
0.32
458.0
3.537
1.528
0.40
296.0
5.473
2.365
0.50
192.0
8.438
3.646
0.64
116.0
13.966
6.034
0.70
96.0
16.875
7.292
TPV, TPZBG
0.32
458.0
3.537
1.528
0.40
296.0
5.473
2.365
0.50
192.0
8.438
3.646
0.64
116.0
13.966
6.034
0.70
96.0
16.875
7.292
TG, TB, TBG, TK
0.40
296.0
5.473
2.365
0.50
192.0
8.438
3.646
0.64
116.0
13.966
6.034
0.70
96.0
16.875
7.292
TStShp, TAShp
0.50
192.0
8.438
3.646
0.70
96.0
16.875
7.292
TSV
0.40
296.0
5.473
2.365
0.50
192.0
8.438
3.646
KSPZP
0.64
116.0
13.966
6.034
KSPP, KSPZP, KSPPB,
KSPZPB, KSPPt, KSPZPt,
KSPZPK
0.90
56.8
28.521
12.324