Telephone Cables
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Ordering Information

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

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

Telephone CablesTelephone 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

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
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