市内通信电缆规格型号
市内通信电缆规格型号
缘采用具有抗氧化性能的K型B类低密度聚乙烯。聚乙烯的绝缘电阻高，耐电压好，介电系数小和介质损耗温度和变频率的影响也小，不但能满足传输性能的要求，而且能确保电缆的使用寿命。
为了减少回路间的相互串扰和外部干扰，电缆采用屏蔽结构。电缆的屏蔽要求是根据不同场合分别采用：对绞组合屏蔽、对绞组成电缆的总屏蔽、对绞组合屏蔽后总屏蔽等方法。
屏蔽材料有圆铜线，铜带、铝带/塑料复合带三种。屏蔽对与屏蔽对具有较好的绝缘性能，电缆在使用中若屏蔽对屏蔽对之间出现电位差时，不会影响信号的传输质量。
市内通信电缆
City sound cable
该产品适用于传输音频150kHz及以下的模拟信号和2048kbit/s及以下的数字信号。在一定条件下，也可用于传输2048kbit/s及以上的数字信号。HYA、HYAT用于架空、管道敷设。HYA53、HYA23、HYAT53、HYA553、HYAT23型适用于直埋。GHYAT、GHYAT53高速公路用通信电缆是为高速公路紧急系统而设计。
Ⅰ. Characteristics and Application
Used for transmitting 150kHz or lower audio analog signals and 2048kbit/s or lower digital signals。They also transmit 2048kbit/s and higher digital signals in some condition.Type HYA 、HYAT cables are used for laying on racks and in conduits ,and type HYA53、HYAT53 cables for direct burial laying.ecommunication cables for freeway are designed for the freeway exigent ephone system.
YD/T322-1996
Ⅱ. Implemented standard
YD/T322-1996
Ⅲ. Basic type and product name
序号 No | 型号 Type | 产 品 名 称 Product denomination |
1 | HYA | 铜芯实芯聚乙烯绝缘双面涂塑铝带屏蔽聚乙烯护套通信电缆 Aluminium tape coated with plastic on both side shielded and polyethylene sheathed ecommunication cables with copper conductors and solid polyethylene insulation |
2 | HYA53 | 铜芯实芯聚乙烯绝缘双面涂塑铝带屏蔽钢带铠装聚乙烯护套通信电缆 Aluminium tape coated both with plastic shielded ,steel tape armoured and polyethylene sheathed ecommunication cables with copper conductors and solid polyethylene insulation |
3 | HYA23 | 铜芯实芯聚乙烯绝缘双面涂塑铝带屏蔽镀锌钢带铠装聚乙烯护套通信电缆 Aluminium tape coated both side with plastic shielded ,zinc-plated steel tape armoured and polyethylene sheathed ecommunication cables with copper conductors and solid polyethylene insulation |
4 | HYAT | 铜芯实芯聚乙烯绝缘石油膏填充双面涂塑铝带屏蔽聚乙烯护套通信电缆 Aluminium tape coated both side with plastic shielded and polyethylene sheathed ecommunication cables with copper conductors ,solid polyethylene insulation and petrolatum filling |
