• 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 are susceptible to designed special for mechanical damage and eroded areas including pipes, overhead laying. While more suitable for direct burial in the rocky area.