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古比雪夫工厂已开始成批生产用于开通K一120路系统的BKlⅡAⅡ2.1/9.7新型单同轴电缆.与BKⅡⅡ—2.1/9.4型构导体地区通信同轴电缆不同之处,在于新电缆的外导体用的是焊接或压制的铝管,因此可节约60%的铜和减少30%的重量,并能简化生产工艺.新电缆的电气特性,包括传输系数,可允许使用为BKⅡⅡ型电缆特性设计的K一120设备.在这种条件下,增音段不应超过10公里.新电缆的敷设、悬挂及维护,与BKⅡⅡ型电缆没有什么区别.BKⅡAⅡ型电缆计划在地区通信网上广泛采用.
The Kuibishev plant has begun mass production of the new BKlⅡAⅡ2.1 / 9.7 single coaxial cable for the K-120 road system and differs from the BKⅡⅡ-2.1 / 9.4-type conductor-based regional coaxial cable in that the new cable Of the outer conductor is welded or pressed aluminum tube, thus saving 60% of copper and reducing the weight by 30%, and to simplify the production process.The electrical characteristics of the new cable, including the transmission coefficient, allows the use of BK Ⅱ Ⅱ type cable Characteristics of the design of the K-120 equipment .In this condition, the increase of paragraph should not exceed 10 km.The laying of the new cable, suspension and maintenance, and BK Ⅱ Ⅱ type cable is no different.BK Ⅱ A Ⅱ cable plan widely used in regional communications network .