PE Insulated & PE Sheathed Non Metallic Reinforced Drop Wires to RUS (REA) PE-7

Applications

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

Telephone Cable -  RUS PE-7 REA PE-7 - Indoor Telephone Cables
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 (unarmoured cables)

Colour code

A wire B wire
1 PR White Blue
2 PR Yellow Black

Dimensions and weight

Cable Code Number of Pairs Insulation Thickness Sheath Thickness Nominal Overall Diameter Nominal Weight
mm/inch mm/inch mm/inch kg/km / lbs/kft
0.5mm Conductor, 0.9mm Insulated Wire
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
TP7-2Y2Y-1P08-SS-A 1 0.28/0.0110 1.2/0.047 5.3/0.209 26.6/17.9