Drop Wires No. 1, 2, 6 & 8 to CW 1166, CW 208, CW 1247 & CW 1320A

Applications

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

Telephone Cable - CW 1166, CW 208, CW 1247 & CW 1320A CW 1166 - Indoor Telephone Cables
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 (unarmoured cables)

Dimensions and weight

Cable Code Number of Cores Minimum Insulation Thickness Maximum Cable Dimensions Diameter X Height Nominal Weight
mm mm 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