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TPPep, TPPepZ, TPPTs, TPPZTs – City telephone cables

Technical specifications

• Maximum operating temperature in fixed assembly conditions for cables without hydrophobic filler;  ranging from -60°С up to +50°С; from 50°С up to + 50°С – for cables with hydrophobic filler;

• Relative air humidity at 35 оC, not greater 98%;

• Nominal maximum DC - resistance conductor at 20°С (Ohm/km) for the following cross-sections: 0,32 mm – not greater 229 Оhm; 0,4 mm – not greater 148 Ohm; 0,5 mm – not greater 95 Оhm; 0,6 mm – not greater 65,8 Оhm; 0,64 mm– not greater 58 - Оhm; 0,7 mm– not greater 48 Оhm; 0,8 mm – not greater 36,6 Оhm;

• Nominal maximum DC – resistance insulation at 20°С (Ohm/km), not less 150 МOhm;

• Ohm asymmetry of cores in working pair – not greater 1.6 %;

• Impedance at 1024 kHz frequency - 100±15 Оhm;

• Nominal maximum DC – resistance insulation at 20°С (Ohm/km), not less 6500 МOhm for cables without hydrophobic filler; not less 5000 MOhm for cables with hydrophobic filler;

• Testing voltage (1 minute DC) between working pair cores – 1500V; between cores and a core screen – 3000 V for cables with voltage up to 315V;

• Pair electric capacitance for 1 кm at 0,8 KHz or 1 kHz without hydrophobic filler — 43±5 pF; with hydrophobic filler — 50±5 pF;

• Pair electrical capacitance relatively screen (е1) — not greater 250 pF /km;

• Minimum bending radius - not less 10 x overall diameter;

• TPPepT and TPPtTs cables tensile strength is not less 12350 N (1258 kg/f).

Cable structure

1- Tinned wire

2- Conducting core

3- Cores insulation

4- Colored fastening tape

5- Wrapping

6- Screen

7- LDPE outer sheath

TPPep, TPPTs types

• Conducting core is made of MM class copper wire;

• Cores are insulated with HD polyethylene;

• Two cores are twisted together in symmetrical pair, pairs are twisted into two elementary groups, and then elementary groups are twisted into a core;

• Wrapping is made from polyethylene terephtalate tapes;

• Screen is made of aluminium and polyethylene tape;

• There is a copper tinned wire under the screen;

• LDPE outer sheath;

• Sheath color – black.

 

TPPepZ, TPPZTs cable types – similar, but with core hydrophobic filler.

TPPepT, TPPTTs cable types – similar; TPPep and TPPTs are cable types with steel galvanized cable integrated into cable sheath.

 

Application

Telephone local cables are designed for operation in local primary communication networks, and also for digital systems signals transmission with frequency 1024Kb/s for  TPPep cables and 2048 Kb/s for TPPTs cables with nominal voltage up to 225 and 145 V AC, 50Hz frequency, or voltage up to 315 and 200 V DC accordingly, which is under surplus air pressure or without pressure. TPPep, TPPTs cables are used for laying in telephone channels, collectors, manholes, on building walls and in aerial laying on supported cables. TPPepZ, TPPZTs cables are used in spray zone conditions. TPPepT, TPPTTs cables are used for aerial laying on poles with maximum 50 meters span length.

 

Ordering information

Cable type

Pairs number

Outer  cable diameter, diameter mm (not greater)

Cable  weight with cores and diameter kg/km, (not greater)

0,4

0,5

0,6

0,64

0,7

0,8

0,4

0,5

0,6

0,64

0,7

0,8

TPPep, TPPTs

5

9,1

10,4

11,0

11,2

13,0

15,1

57

82

90

96

115

143

10

10,9

12,3

13,3

13,8

15,6

17,9

97

125

148

166

204

274

20

13,1

15,7

17,1

17,9

19,4

21,7

145

207

266

284

330

431

30

15,5

17,8

19,6

20,5

23,5

27,4

201

273

356

383

480

656

50

18,9

22,2

25,2

26,5

30,5

34,8

306

427

590

634

784

1037

100

24,9

29,4

33,2

35,2

38,5

43,8

540

764

1056

1145

1353

1749

200

32,9

38,8

43,6

46,1

51,7

59,8

969

1383

1921

2106

2504

3228

300

38,2

46,5

53,1

56,3

62,1

71,1

1340

2002

2782

3054

3640

4577

400

43,8

53,2

59,8

63,2

70,3

80,8

1759

2625

3555

3917

4721

6284

500

47,7

58,2

65,2

69,7

77,3

89,4

2118

3173

4349

4805

5752

7296

600

51,3

62,6

70,7

74,9

83,2

95,5

2471

3717

5149

5702

6832

8652

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