hya100 * 2 * 0.4 communications cable audio cable details: bonding of HYA - copper conductors, solid polyolefin insulated aluminum sheathed if cable HYAC - copper conductors, solid polyolefin insulation and aluminum bonding integrated sheath self-supporting telephone cable HYAT - copper conductors, solid polyolefin insulation filled moisture barrier polyethylene sheath city telephone cables HYA53 - copper conductors, solid polyolefin insulation and aluminum sheath monolayer comprehensive package of corrugated steel tape armored polyethylene sleeve City cable city, then cable use: type of HYA, HYAC type of local telephone cables for telephone exchange district, relay trunk designed for City, then cable, can be used to transmit audio signals and integrated services digital network of 2B + D, the rate and the following digital signals, can also be used transmission 2048 kbit / digital signal or 150KHz below the analog signal. HYA-type telephone cable is mainly used for pipe laying, can also be used for overhead, it requires a suspension wire, HYAC type cable for aerial, without using the hanging wire and hooks. HYA53 type telephone cable to improve the mechanical strength and anti-erosion ability of the cable can be used either way, laying more suitable for direct burial laying in rocky areas. Using the temperature are: -30 ℃ ﹀ the +60 ° C Local telephone and cable product mix: Conductor: GB3953 stipulated TR soft round copper wire with a nominal diameter: 0.4,0.5,0.6,0.7,0.8,0.9 mm. Insulation: The insulation level of high density polyethylene or polypropylene, insulated wire in accordance with the full spectrum color, identifying marked insulation colors meet GB6995.2 provisions. Pair: the insulation of the two different color singlet according to different pitch twisted pairs to minimize crosstalk and with specified color combinations to identify the pair. Cable core strands: a number of basic units or super units, each unit with the provisions of Chromatography tie around the bar, in order to identify the different units. Cable 100 pairs and above, plus a 1% preparation line, but up to no more than six pairs. The cable core package with: non-hygroscopic tape wrapped the lock cylinder. Aluminum bonded integrated sheath: Shield: 0.30mm thick double-sided coated aluminum, vertical package with cable pericardial outside, both sides of the overlap is greater than 6mm and bonded together more than 400 pairs of corrugated longitudinal package. Jacket: black low density polyethylene to identify and length mark: the cable surface printed on a permanent identification mark, mark one meter intervals, the tag content: models, specifications, name, trademark, year of manufacture and meter. Telephone cable HYA400-500-600-700-800-1000-1200-1600-2000 × 2 × 0.4 in diameter (the major technical indicators) Technical requirements: according to the Ministry of Posts and Telecommunications issued YD/T322-1996 standard requirements.