Telephone Cables

 Solid PE Insulated & PE Sheathed Air Core Cables to CW 1171

Application

The cables are designed for use as subscriber distribution cables and as connection between central offices in local access networks. The cables are unfilled and capable of being pressurized when installed. The cables are suitable for installation in ducts.

Standards

Telephone Cables    Telephone Cables

• CW 1171 (For unscreened cable)
• CW 1179 (For screened cable)
• CW 1252 (For self-supporting cable)

Construction

Conductors: Solid annealed bare copper, 0.32/0.4/0.5/0.63/0.9mm as per BS 6360/IEC 60228 Class 1
Insulation: Solid polyethylene as per BS EN 50290-2-23/BS 6234/IEC 60708
Twisted Pairs: Insulated conductors are twisted into pairs with varying lay length to minimize crosstalk.
Cabling Element: Twisted Pairs
Cable Core Assembly: Cables with 100 pairs or less are composed of 25-pair units or 12/13-pair units; cables with over 100 pairs are composed of 25, 50 or 100-pair units. Standard construction is per CW 1171 given in Cable Make Up Chart
Core Wrapping: One or more non-hygroscopic polyester tapes are helically or longitudinally laid with an overlap. These tapes furnish thermal, mechanical as well as high dielectric protection between shielding and individual conductors
Moisture Barrier (optional):A layer of aluminium tape (0.15mm) coated with PE-copolymer on one or both sides is applied longitudinally with overlap over the cable core to provide shielding coverage and ensure a barrier against water vapor
Sheath: Black low density polyethylene as per BS 6234/IEC 60708, being able to withstand exposure to sunlight, temperature variations, ground chemicals and other environmental contaminants
Ripcord:Ripcord may be provided for slitting the sheath longitudinally to facilitate its removal
Spare Pairs (optional):Spare pairs may be incorporated for 200 and larger pair cables
Continuity Wire (optional): Tinned copper drain wire may be longitudinally laid to ensure electrical continuity of the screen

Electrical & Mechanical Properties

Nominal Conductor Diameter

mm

0.32

0.4

0.5

0.63

0.9

Conductor Gauge Size

AWG

28

26

24

22

19

Conductor Size

mm2

0.08

0.126

0.196

0.312

0.636

Maximum Average Conductor Resistance @20°C

Ω/km

223

143

91

58

28

Minimum Insulation Resistance @500V DC

MΩ.km

6500

6500

6500

6500

6500

Maximum Average Mutual Capacitance @800Hz

nF/km

53/68*

53 53 56

59

Maximum Individual Mutual Capacitance @800Hz (for 99% cases)

nF/km

60/75*

60 60 60

64

Maximum Individual Capacitance Unbalance @800Hz pair-to-pair

pF/500m

275

275 275 275

275

Maximum Conductor Loop Resistance @20°C

Ω/km

470

300 192 114

60

Impedance @1KHz

1000

994 796 660

445

Impedance @100KHz

156

147 134 125

122

Impedance @512KHz

122

120 118 117

116

Impedance @1MHz

120

117 115 114

113

Maximum Average Attenuation @0.8KHz

dB/km

1.76

1.64 1.30 1.04

0.74

Maximum Average Attenuation @1KHz

dB/km

1.8

1.68 1.35 1.08

0.76

Maximum Average Attenuation @3KHz

dB/km

3.4

3.18 2.52 2.01

1.42

Maximum Average Attenuation @150KHz

dB/km

16.8

11.4 8.3 6.2

4.4

Maximum Average Attenuation @772KHz

dB/km

29.5

24.3 19.4 15.4

10.8

Maximum Average Attenuation @1000KHz

dB/km

33.5

27.1 21.4 17.5

12.8

Dielectric Strength Conductor to Conductor (3secs)

V DC

500

500 500 500

500

Nominal Insulation Thickness

mm

0.145/0.08**

0.175 0.20 0.26

0.3

Nominal Insulated Conductor Diameter

mm

0.61/0.48**

0.75 0.90 1.15

1.5

 

 

 

 

 

 

 

* Mutual capacitance values may be increased by 3% for cables with a nominal number of pairs less than 400.
** The values apply to 4000 and 4800 pairs 0.32mm cable only.

Mechanical and Thermal Properties

Temperature range during operation (fixed state): -30°C – +70°C
Temperature range during installation (mobile state): -20°C – +50°C
Minimum bending radius: 10 x Overall Diameter (unarmoured cables);15 x Overall Diameter (armoured cables)
Colour Code Standard colour code is per CW 1171 given in Colour Code Chart
Dimensions And Weight Solid PE Insulated & PE Sheathed Air Core Cables to CW 1171

Cable Code Number of Pairs

Minimum Sheath Thickness
mm

Maximum Overall
Diameter
mm

Nominal Weight
kg/km
0.32mm Conductor, 0.61mm Insulated Wire

TP1171-2Y(L)2Y-50P032

50

1.6

14.0

140

TP1171-2Y(L)2Y-100P032

100

1.6

17.0

280

TP1171-2Y(L)2Y-200P032

200

1.7

22.0

480

TP1171-2Y(L)2Y-300P032

300

1.8

26.0

680

TP1171-2Y(L)2Y-400P032

400

1.8

29.5

880

TP1171-2Y(L)2Y-500P032

500

1.9

32.0

1080

TP1171-2Y(L)2Y-600P032

600

1.9

34.0

1281

TP1171-2Y(L)2Y-800P032

800

2.0

39.0

1681

TP1171-2Y(L)2Y-1000P032

1000

2.1

42.5

2081

TP1171-2Y(L)2Y-1200P032

1200

2.2

47.0

2482

TP1171-2Y(L)2Y-1600P032

1600

2.3

53.0

2883

TP1171-2Y(L)2Y-2000P032

2000

2.4

58.5

3284

TP1171-2Y(L)2Y-2400P032

2400

2.5

62.0

3681

TP1171-2Y(L)2Y-3200P032 3200 2.6 70.0

4082

TP1171-2Y(L)2Y-4000P032 4000 2.6 66.0*

4883

TP1171-2Y(L)2Y-4800P032 4800 2.7 71.0*

5681

0.4mm Conductor, 0.75mm Insulated Wire

TP1171-2Y(L)2Y-50P04 50 1.6 16.0

211

TP1171-2Y(L)2Y-100P04  100 1.7 20.5

380

TP1171-2Y(L)2Y-200P04 200  1.8 26.0

708

TP1171-2Y(L)2Y-300P04 300 1.9 30.5

1034

TP1171-2Y(L)2Y-400P04 400 1.9 35.0

1358

TP1171-2Y(L)2Y-500P04 500 2.0 37.5

1703

TP1171-2Y(L)2Y-600P04 600 2.1 40.5

2016

TP1171-2Y(L)2Y-800P04 800 2.2 46.5

2639

TP1171-2Y(L)2Y-1000P04 1000 2.3  51.5

3264

TP1171-2Y(L)2Y-1200P04 1200 2.4 56.0

3873

TP1171-2Y(L)2Y-1600P04 1600 2.6 65.5

4819

TP1171-2Y(L)2Y-2000P04 2000 2.6 70.0

6731

0.5mm Conductor, 0.9mm Insulated Wire
TP1171-2Y(L)2Y-50P05 50 1.6 19.0

305

TP1171-2Y(L)2Y-100P05 100 1.7 23.5

561

TP1171-2Y(L)2Y-200P05 200 1.9 30.5

1074

TP1171-2Y(L)2Y-300P05 300 2.0 37.0

1582

TP1171-2Y(L)2Y-400P05 400 2.1 42.5

2093

TP1171-2Y(L)2Y-500P05 50 2.2 46.0

2577

TP1171-2Y(L)2Y-600P05 600 2.2 49.5

3073

TP1171-2Y(L)2Y-800P05 800 2.4 56.5

4033

TP1171-2Y(L)2Y-1000P05 1000 2.5 62.5

5015

TP1171-2Y(L)2Y-1200P05 1200 2.6 69.0

5959

0.63mm Conductor, 1.15mm Insulated Wire
TP1171-2Y(L)2Y-50P063 50 1.7 22.0

416

TP1171-2Y(L)2Y-100P063 100 1.8 28.0

782

TP1171-2Y(L)2Y-200P063 200 2.0 37.5

1505

TP1171-2Y(L)2Y-300P063 300  2.2 46.0

2238

TP1171-2Y(L)2Y-400P063 400 2.3 52.5

2944

TP1171-2Y(L)2Y-500P063 500 2.4 56.5

3633

TP1171-2Y(L)2Y-800P063 800 2.7 70.5

5722

0.9mm Conductor, 1.5mm Insulated Wire
TP1171-2Y(L)2Y-50P09 50 1.8 27.5

1000

TP1171-2Y(L)2Y-100P09 100 2.0 38.0

1670

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*These cables have a reduced nominal insulation thickness of 0.08mm