HYA53 solid copper conductor polyolefin moisture barrier polyethylene sheathed steel tape armored polyethylene sheathing 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, 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; 53 type armor mechanical protective layer can increase the mechanical strength of the cable and improve the anti-erosion ability, which the telephone cable 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℃。