| Application | The drop wires are one or two pair aerial service wires designed for use in extending telephone service to subscriber premises from the cable terminal. |
| Standards | RUS (REA) PE-7 |
| Construction | |
| Conductors: | Solid annealed bare copper 0.5/0.8mm as per ASTM B-3/IEC 60228 Class 1 |
| Insulation: | Solid polyethylene as per ASTM D 1248/IEC 60708 |
| Cable Core Assembly & Core Wrapping | Individual conductors are twisted into pairs and wrapped with PETP tape |
| Strength Member: | Aramid yarn as non-metallic strength member is placed inside the sheath to provide longitudinal strength |
| Sheath | PE is extruded over the core to provide protection against mechanical damage, degradation by sunlight and water ingress |
| Ripcord | A ripcord made of polyamide is placed parallel to the core to facilitate sheath removal |
Electrical Properties
|
Conductor Diameter |
mm |
0.5 |
0.8 |
|
Conductor Gauge Size |
AWG |
24 |
20 |
|
Maximum Conductor Resistance @20°C |
Ω/km / Ω/mile |
91/145.78 |
34.6/55.72 |
|
Minimum Insulation Resistance @500V DC |
MΩ.km / MΩ.mile |
10000/6214 |
10000/6214 |
|
Maximum Resistance Unbalance |
% |
2 |
2 |
|
Average Mutual Capacitance @1000Hz |
nF/km / nF/kft |
55/16.8 |
55/16.8 |
|
Maximum Capacitance Unbalance pair-to-pair |
pF/km / pF/kft |
300/91 |
300/91 |
|
Maximum Capacitance Unbalance pair-to-ground |
pF/km / pF/kft |
1000/303.4 |
1000/303.4 |
|
Impedance @0.8KHz |
Ω/km / Ω/mile |
600/965.6 |
600/965.6 |
|
Impedance @64KHz |
Ω/km / Ω/mile |
125/201.2 |
125/201.2 |
|
Impedance @772KHz |
Ω/km / Ω/mile |
100/160.9 |
100/160.9 |
|
Maximum Average Attenuation @0.8KHz |
Ω/km / Ω/mile |
1.5/2.4 |
1.5/2.4 |
|
Maximum Average Attenuation @64KHz |
Ω/km / Ω/mile |
8.0/12.87 |
8.0/12.87 |
|
Maximum Average Attenuation @772KHz |
Ω/km / Ω/mile |
18/28.97 |
18/28.97 |
|
Dielectric Strength 1min |
V |
1000DC/1500AC |
1000DC/1500AC |
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
Color Code
|
|
A wire |
B wire |
|
1 PR |
White |
Blue |
|
1 PR |
Yellow |
Black |
Dimensions And Weight
|
Cable Code |
Number of Pairs |
Insulation Thickness mm/inch |
Sheath Thickness mm/inch |
Nominal Overall Diameter mm/inch |
Nominal Weight kg/km / lbs/kft |
|
0.5mm Conductor, 0.9mm Insulated Wire |
|||||
|
UE-TP7-2Y2Y-2P05-SS-A |
2 |
0.2/0.0079 |
1.2/0.047 |
5.0/0.197 |
26.2/17.6 |
|
0.8mm Conductor, 1.36mm Insulated Wire |
|||||
|
UE-TP7-2Y2Y-1P08-SS-A |
1 |
0.28/0.0110 |
1.2/0.047 |
5.3/0.209 |
26.6/17.9 |
