文章来源：http://www.trcables.com/ 作者：上海嗨润 发布时间：：2018-01-22 10:10 浏览次数：次
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
• 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 |
|
Ω/km/ Ω/mile |
57.1/91.8 |
28/44.9 |
|
|
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 Supporting Wire |
Nominal Insulation Thickness |
Nominal Insulation Diameter |
Nominal Overall |
Nominal |
||
|
Conductor |
Supporting |
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 |
