• Wire: Annealed bare copper wire, copper wire diameter 0.40, 0.50, 0.60, 0.70, 0.80, 0.90mm.
• Insulation material: HDPE, the color of insulated wire conforms to the standard of international spectrum.
• Insulation wire pairs: Pairs of single insulated wires are twisted in pairs at different pitches and the specified color combinations are used to identify pairs. Reduce crosstalk interference between pairs, low power consumption.
• Mechanical protective layer: The first internal aluminum-plastic composite tape, the second layer of steel armor, the surface of the steel has been specially treated to prevent corrosion and water intrusion.
• Shield: 0.2mm thick double-sided aluminum coated with corrugated (or not corrugated) longitudinal package in the core package tape, lap joints.
• Sheath material: Polyethylene PE sheath
• Operating Temperature: -30℃～+60℃.

Electrical Performance

• DC Resistance:20℃, 0.4 ≤148Ω/km 0.5 ≤95.0Ω/km 0.6 ≤65.8Ω/km 0.8 ≤36.6 Ω/km
• Insulation electrical strength: Conductor between 1min 1kv not breakdown; conductor and shield 1min 3kv not breakdown.
• Insulation Resistance: Each core wire and the remaining core connecting to ground, air filled cable is greater than 10000MΩ.km, filled type cable is more than 3000 m Ω. Km.
• Working capacitance: average 52 ± 2nF / km.
• Far-end crosstalk defense: 150kHZ specified combination of average power greater than 69dB / km.

• This product is mainly used for telecommunications in the national telecommunications network, but also for private network access to public networks; 23 type armor mechanical protective layer can increase the mechanical strength of the cable and improve the anti-erosion ability, which the telephone cables is susceptible to designed special for mechanical damage and eroded areas including pipes, overhead laying and more suitable for direct burial in rocky area.