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

Application

The CW 1171 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

CW1171 Telephone Cables CW1171 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
Temperaturerange during installation (mobile state): -20°C – +50°C
Minimumbending radius: 10 x Overall Diameter (unarmoured cables);15 x Overall Diameter (armoured cables)
Colour CodeStandard colour code is per CW 1171 given in Colour Code Chart
Dimensions And WeightSolid 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
les have a reduced nominal insulation thickness of 0.08mm