HYA T 23 solid copper conductor polyolefin moisture barrier polyethylene sheathed steel tape armored polyethylene sheath City communications cables, double sheath structure, the first layer of aluminum-plastic composite tape Long tide with polyethylene tide barrier Sets, the second layer of steel armor plus polyethylene sheath cable, oil-extended, mainly for the transmission of audio, 150kHZ and below the analog signal and 2048kbit / s and below the digital signal. Under certain conditions, it can also be used to transmit digital signals over 2048kbit / s.

●wire: annealed bare copper wire, copper wire diameter0.40,0.50,0.60,0.70,0.80,0.90mm. 
● Insulation material: HDPE, the color of insulated wire conforms to the standard of full-color chromatography. 
● Insulated 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:  polyethylene PE sheath.

● DC Resistance: 20 ℃, 0.4 ≤ 148Ω / km 0.5 ≤ 95.0Ω / km 0.6 ≤ 65.8Ω / km 0.8 ≤ 36.6Ω / 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. 
● 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.

 -30℃～+60℃。