The cable is applied to telecom net both in urban and rural area for transmission of audio frequency information, 28+D and below digital information, 2408kb/s digital information or 150KHz and below analog information.

Cross Section of Cable

Specification

Inner Conductor

0.4

0.5

0.6

0.8

Max. Dia.

Weight

Max. Dia.

Weight

Max. Dia.

Weight

Max. Dia.

Weight

10

11.5

85

12.5

107

14.0

135

17.5

196

20

13.5

126

15.0

167

17.0

234

21.0

324

30

15.0

167

17.0

230

19.5

304

24.5

447

50

17.5

238

20.0

331

23.0

464

29.0

714

100

22.5

419

25.5

596

29.0

854

38.5

1330

200

28.0

788

32.5

1133

38.5

1598

52.5

2520

300

32.5

1105

38

1695

46.0

2287

62.0

3924

400

36.5

1447

435.

2116

52.5

3050

70.0

5190

600

42.5

2065

51.5

3125

62.5

4400

800

49.0

2729

58.5

4000

70.5

5900

900

51.5

3077

61.5

4580

1000

53.0

3377

64.5

5065

1200

57.5

3995

69.5

6003

Electrical Propertics

1.DC Resistance of Individual Conductor(20℃)

2.DC Resistance Unbalance

3.Insulation Resistance Between Conductor and Earth or Shield

　(20℃.DC100-500V)≥1000MΩ.km

4.Electric Strength or Insulation(DC)

　Between Conductors: 1000V 1min Undisruptive

　Between Conductor and Shield: 3000V 1min Undisruptive

5.Capacitance(nF/km)

　Cables Over 10pairs

　Average Value: 52+/-2.0

　Max Value: 57.0

6.Capacitance Unbalance, 0.8KHz or 1KHz pF/km

　Pair to Pair:　　　max 250(200)　 250(200)

　Pair to Earth: 　　max 2630 　　　2630

　Average Value: ≯570(490)

7.Remote-End Crosstalk Defence(150KHz)

　Basic Unit or 30pairs Average Power Value ≥69dB/km

　Subunit: 12pairs and 13pairs and 10pairs and 20pairs

　Average Power Value ≥68dB/km

8.Near-End Crosstalk Attenuation:

　10pairs Composed(m-s) ≥53dB

　12pairs and 13pairs Composed(m-s) ≥54dB

　20pairs and 30pairs or Basic Unit Composed(m-s) ≥58dB

　Adjacent Basic Subunit Composed(m-s) ≥63dB

　Adjacent Basic Unit Composed(m-s) ≥64dB

　Two Relative Basic Unit or Subunit Composed in Unit (m-s) ≥70dB

　Basic Unit or Subunit Composed in Different Unit(m-s) ≥79dB

9.Natural Attenuation: (20℃)