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Application
The drop wires are designed for extending a distribution cable pair from a pole or cable terminal to a subscriber premises. The cables are suitable for aerial installation.
Standards
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• RUS (REA) PE-7
Construction
Conductors
Solid annealed bare copper 0.64mm or 0.9mm as per ASTM B-3/class 1 of IEC 60228
Steel Bearer Wire
Galvanized steel wire, solid
Insulation
High density black PVC which can be made ultraviolet resistant by addition of carbon black
Electrical Properties
Nominal Conductor Diameter |
mm |
0.64 |
0.9 |
Conductor Gauge Size |
AWG |
22 |
19 |
Conductor Size |
mm2 |
0.332 |
0.636 |
Maximum Conductor Resistance @20°C |
Ω/km/ Ω/mile |
57.1/91.8 |
28/44.9 |
Minimum Insulation Resistance @500V DC |
MΩ.km / MΩ.mile |
400/249 |
400/249 |
Maximum Breaking Strength |
Kg |
155 |
155 |
Dielectric Strength 1min |
V RMS |
1500 |
1500 |
Nominal Insulation Thickness |
mm/inch |
1.0/0.039 |
1.05/0.041 |
Nominal Insulated Conductor Diameter |
mm/inch |
2.65/0.104 |
3.05/0.12 |
Nominal Diameter of Steel Wire Core |
mm/inch |
3.2/0.126 |
3.35/0.132 |
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: 7.5 x Overall Diameter
Dimensions And Weight
Cable Code |
Number and
Diameter of Wires in Conductor |
Diameter of Supporting Wire |
Nominal Insulation Thickness |
Nominal Insulation Diameter |
Nominal Overall
Dimensions |
Nominal
Weight |
Conductor |
Supporting
Wire |
A |
B |
|
No./mm |
mm/inch |
mm/inch |
mm/inch |
mm/inch |
mm/inch |
mm/inch |
kg/km / lbs/kft |
TP7-Y-1P064-SS |
2×0.64 |
1.2/0.047 |
1.00/0.039 |
2.65/0.104 |
3.20/0.125 |
6.1/0.24 |
6.1/0.24 |
43/28.89 |
TP7-Y-1P09-SS |
2×0.90 |
1.2/0.047 |
1.05/0.041 |
3.05/0.120 |
3.35/0.132 |
8.1/0.32 |
6.8/0.27 |
52/34.94 |
