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
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