USES of RVVP shielding cable: this product is suitable for ac rated voltage 300/300v and below electrical, instrumentation, electronic equipment and automation equipment.
敷设时环境温度不低于:固定敷设-30℃,非固定敷设-18℃最小弯曲半径：无铠装层应不小于电缆外径的8倍，带铠装层的电缆应不小于电缆外径的14倍在20℃时用直流500V电压试验稳定充电1min后绝缘电阻应不小于2500MΩ•Km各对绞屏蔽之间以及对绞屏蔽与总屏蔽之间应不断路电缆的线芯和线芯之间以及屏蔽。
带钢丝绳PVC弹性体行车控制电缆，具有柔软、耐磨、防油等特性，线旁附钢丝绳，增强抗拉力。
适用于交流额定电压0.6/1KV及以下的行车、台车、传输机械等移动电器用动力传输线及控制、照明、通讯线路，本产品已广泛应用于冶金、电力、船舶、港口等行业。
现在将一些错误的观念作出一些澄清。
1.485信号线可以和强电电源线一同走线。
在实际施工当中，由于走线都是通过管线走的，施工方有的时候为了图方便，直接将485信号线和电源线绑在一起，由于强电具有强烈的电磁信号对弱电进行干扰，从而导致485信号不稳定，导致通信不稳定。
ZA-VV22/ZB-VV22/ZC-VV22ZA-VLV22/ZB-VLV22/ZC-VLV22聚氯乙烯绝缘钢带铠装聚氯乙烯护套A(B、C)类阻燃电力电缆适宜对阻燃有要求时埋地敷设，不适宜管道内敷设。
RS-422是一种单机发送、多机接收的单向、平衡传输规范，被命名为TIA/EIA-422-A标准。
为扩展应用范围，EIA又于1983年在RS-422基础上制定了RS-485标准，增加了多点、双向通信能力，即允许多个发送器连接到同一条总线上，增加了发送器的驱动能力和冲突保护特性，扩展了总线共模范围，后命名为TIA/EIA-485-A标准。
由于EIA提出的建议标准都是以“RS”作为前缀，在通讯工业领域，仍然习惯将上述标准以RS作前缀称谓。
HYA53/HYAT53（防鼠咬/直埋）HYAT53直埋型电缆主要用于传输音频、15市内通信电缆|通信电缆|（管道/架空）HYAC（架空 ）HYAT（防水）0kHZ及以下的模拟信号和2048kbit/s及以下的数字信号。
???? In flame retardant series products, has been successfully used in the oxygen isolation technology, not only 0.6/1 kv polyvinyl chloride insulated and crosslinked polyethylene insulation flame retardant power cable can achieve GB/T12666.5 "into A bunch of power cable test" in class A, and rated voltage up to and including 6/10 kv 8.7/15 kv crosslinked poly (flame retardant power cable can reach A high class A demand and A large margin. On the basis of high flame retardant and high flame retardant cross-linked insulation, a low-smoke halogen-free high-flame retardant oxygen insulation layer power cable was added, and its low-smoke halogen-free performance was in line with GB/T17651.1.2 and GB/ t1765650.1.2. In this way, the overall level of the company's cross-linked power cable is lower than the domestic status. This company produces the type refractory power cables for rated voltage 0.6/1 kv copper core cable, can also produce low smoke zero halogen fire-resistant power cable, high flame retardant fire-resistant power cable oxygen insulation layer, the fire-resistant performance in line with the GB/T12666.6 cable fire resistance test. Therefore, the overall performance of refractory series power cables is good and reliable. The water resistance performance of fireproof cable conforms to iec 502-2.
Communication cables are cables that transmit telephone, telegraph, facsimile documents, television and radio programmes, data and other electrical signals. Twisted by more than one pair of mutually insulated conductors. Compared with overhead open line, communication cable has the advantages of large communication capacity, high transmission stability, good confidentiality, less affected by natural conditions and external interference.
阻燃控制电缆型号ZR-KVVP22,ZR-KVVP2-22,ZR-KVVP2我公司长年供应：KVV、KVVR、RVV、ZR-KVV、ZRC-KVV、ZRB-KVV、ZRB-RVV、ZRC-RVV、KVVP、KVVP1、ZR-KVV22P、ZR-KVV22P2、ZRC-KVV22P2、ZRC-KVV2。
直流电阻:20℃,0.4mm铜线,小于等于148Ω/km，0.5mm铜线,小于等于95Ω/km。
2.绝缘电气强度：导体之间1min1kv不击穿导体与屏蔽1min3kv不击穿3.绝缘电阻：每根芯线与其余线芯接地，控制电缆大于10000MΩ.km,HYAT电缆大于3000MΩ.km。
Electrical strength of insulation: 1min 1kv between conductors does not break the conductor and the shield 1min 3kv does not break
C4，C2——采用一般的空气介质、容量范围为16～360微微法的单连可变电容器。
在这里不用双连，因为要求调谐电路同步不易调整。
Д1，Д2，T1——晶体二极管采用国产Д1B型的。
选用正向电阻500欧左右、反向电阻100千欧以上的较好。
测试时将万用表量程放在（R×100）或（R×1K）档测量。
晶体三极管T1采用国产П6型或2G100型的。
C1，C3，C5——CC3采用纸质电容器，耐压400伏。
C5采用耐压3伏、10微法超小型电解电容器。
In manufacuring HYA communication cable, mine cable, mine communication cable, mine, mine communication cable, signal cable, mining control cable, cable for mine monitoring, mine monitoring cable, mine remote sensing cable, control cable, computer cable, flame retardant cable, fire-resistant cable, communication cable in the city, railway signal cable, communications equipment such as the power cord, communication cable in the city the main products are: Manufacuring HYA, HYAT, HYAC HYA22 HYA23, HYAT23, HYA53, HYAT53, ZRC - manufacuring HYA, ZRC - HYAT, WDZ - manufacuring HYA, ZRC - HYA23 series, such as product model complete specifications, has passed the holding center communication equipment network access license, constant standard symbol system certification, sold throughout the country telecommunications company, also become several communications equipment accessories, agreement is well received by customers and trust!
MKVV芯)×（0.75-2.5mm2）煤矿用铜芯聚氯乙烯绝缘聚氯乙烯护套细钢丝铠装阻燃控矿用制电缆敷设在能承受较大机械拉力的固定场合用于煤矿竖井作控制传输用.天津市电缆总厂第一分厂专业生产研发矿用通信电缆；矿用控制电缆；矿用信号电缆；煤矿用通信电缆；煤矿用控制电缆；煤矿用信号电缆；矿。
现设办公室（政策研究室）、综合部（国际部、信息部）、技术部、评审部、检验部、监督部、财务部等部门。
发展现状我国的矿用电缆经过几年的高速发展已形成相当的规模，但由于生产能力大于需求，出现供大于求的局面。
目前的生产能力已大大超过今年的预测需求数值，电线电缆企业均面临亟待提高产品技术含量的问题。
适用于交流额定电压0.6/1KV及以下的行车、台车、传输机械等移动电器用动力传输线及控制、照明、通讯线路，本产品已广泛应用于冶金、电力、船舶、港口等行业。
技术要求导体20℃直流电阻应符合GB9330.1的规定绝缘电阻见表3-表6要求。