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APPLICATIONS
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Drop Wires No. 1, 2, 6 & 8 to CW 1166, CW 208, CW 1247 & CW1320A
Application
The drop wires are designed for extending an open wire line or distribution pairs from a pole or cable terminal to a building. The drop wires are to be installed between distribution point and telephone subscriber premises.
Standards
• CW 1166 (Drop Wires No. 1)
• CW 208 (Drop Wires No. 2)
• CW 1247 (Drop Wires No. 6)
• CW 1320A (Drop Wires No. 8)
Construction
Conductors
Solid cadmium copper of 0.91mm to BS 4807 (Drop Wires No. 1)
Solid copper covered steel of 0.71mm to BS 4807 (Drop Wires No. 2)
Solid copper covered steel of 0.81mm to BS 4807 (Drop Wires No. 6)
Solid cadmium copper of 1.14mm to BS 4807 (Drop Wires No. 8)
Insulation
PVC to BS 6746 T1 (Drop Wires No. 1)
PVC to BS 6746 T2 (Drop Wires No. 2)
PVC to BS 7878 T1 (Drop Wires No. 6)
PVC to BS 6746 T1 (Drop Wires No. 8)
Cable Core Assembly
Two conductors are extruded parallel, figure-8 type
Electrical Properties
Nominal Conductor Diameter | mm | 0.91 | 0.71 | 0.81 | 1.14 |
---|---|---|---|---|---|
BT Drop Wire Reference | No. 1 | No.2 | No.6 | No. 8 | |
Conductor Size | mm2 | 0.65 | 0.4 | 0.52 | 1.02 |
Minimum Insulation Resistance @500V DC | MΩ.km | 24 | 24 | 50 | 24 |
Minimum Insulation Thickness | mm | 0.75 | 1.02 | 0.8 | 1.52 |
Nominal Insulated Conductor Diameter | mm | 2.41 | 2.75 | 2.41 | 4.18 |
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
Dimensions And Weight
Cable Code | Number of Cores |
Minimum Insulation Thickness mm |
Maximum Cable Dimensions Diameter X Height mm |
Nominal Weight kg/km |
---|---|---|---|---|
0.91mm Conductor, 2.41mm Insulated Wire | ||||
TP1166-Y-1P091-DW1 | 2 | 0.75 | 2.7x5.6 | 25 |
0.71mm Conductor, 2.75mm Insulated Wire | ||||
TP208-Y-1P071-DW2 | 2 | 1.02 | 2.75x6.0 | 20 |
0.81mm Conductor, 2.41mm Insulated Wire | ||||
TP1247-Y-1P081-DW6 | 2 | 0.8 | 2.5x5.4 | 23 |
1.14mm Conductor, 4.18mm Insulated Wire | ||||
TP1320A-Y-1P114-DW8 | 2 | 1.52 | 4.44x9.4 | 34 |