TELEPHONE CABLE (HYA SERIES)

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
Diameter 		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℃)
　Nominal Conductor Diameter(mm)
0.4
0.5
0.6
0.8
  
　DC Resistance (Ω/km) max
148.0
95.0
65.8
36.6
  
 
2.DC Resistance Unbalance
　Nominal Conductor Diameter(mm)
0.4
0.5
0.6
0.8
  
　DC Resistance Average Value≤
1.5
1.5
1.5
1.5
  
　Unbalance%　　　 Max　Value≤
5.0
5.0
5.0
4.0
  
 
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℃)
　Nominal Conductor Diameter(mm)
0.4
0.5
0.6
0.8
  
　Average　Value≤150KHz
12.1
9.0
7.2
5.7
  
　　　　　 Value≤1024KHz
27.3
22.5
18.5
13.7