公司声明，有问题的电缆绝不出厂严把质量关BBP-VVPBP-VVPP2BP-VVPPP2BP-VVP3BP-YJVPBP-YJPVPP-YJPVP2BP-YJVP2BP-YJP2VP2BP-YJP2VPBP-YJVP2PBP-YJVP3BP-YJP3VPBP-YJP3VP2ZR-BPYJVPZR-B。
4.屏蔽通信电缆工作电容：平均值52±2nF/km5.屏蔽通信电缆远端串音防卫度：150kHZ时指定组合的功率平均值大于69dB/km。
HYAT实心绝缘填充型电缆用途：实心绝缘填充型电缆适用于本地电信网的城市与乡镇电信线路，也适用于接入公用网的专用网线路。
产品型号：WDZ-RYYP低烟无卤多芯屏蔽电缆电缆结构：导体：无氧裸铜丝绝缘：低烟无卤环保型屏蔽：铜丝或镀锡铜丝编织屏蔽护套：低烟无卤环保型颜色：黑色(RAL9005)灰色(RAL7001)工作电压：450/750V测试电压：＜0.5mm²：2000V≥0.5mm?：2500V使用温度范围：-20℃。
Sheathed control cable is introduced: polyvinyl chloride insulated fine steel wire armoured or steel tape armoured polyvinyl chloride sheathed control cable for mine, for laying indoors, in cable trench, pipelines, and underground shaft, in the male by certain pulling force function and the function of external mechanical forces.
1) production time: the goods will be delivered on the same day as soon as they are available in stock, and the to be customized shall be determined. 2) sales discount: large is preferred. 3). Sales volume: teleconference. 4) delivery standard: the freight charge shall be borne by the seller. The arrival time is generally 3 days. If it is true that the products are not in conformity with the re of the contract due to product problems or the products provided by our company, we agree to the buyer to change the goods or reject the products and return the goods.
plc的组成方框图PLC的种类很多，结构大同小异，下图是典型的PLC控制系统组成方框图。
PLC组成方框图在组建PLC控制系统时，需要给PLC的输入端子接入有关的输入设备，给PLC的输出端子接入有关的输出设备，还需要将编写好的程序通过通信接口输入PLC内部存储器，如果希望增强PLC的功能，可以将扩展单元通过扩展接口与PLC连接。
PLC各部分说明PLC内部主要由CPU、存储器、输入接口、输出接口、通信接口和扩展接口等组成。
额定电压:300V/300V 低烟无卤电缆低烟无卤电缆，是指不含卤素（F、Cl、Br、I、At）、不含铅镉铬汞等环境物质的胶料制成，燃烧时不会发出有毒烟雾的环保型电缆。
电缆的无卤低烟、低卤低烟特性，当火灾发生时，蔓延速度慢，烟浓度低，可见度高，有害气体释放量小，便于人员撤离。
其它铠装通信电缆型号HYA22HYV22HYAT22HYY23HYYT23HYA23HYAT23。
钢丝铠装通信电缆HYA33HYAT33WDZ-HYA53HYY33HYYT33HYY33。
充油通信电缆HYATZRC-HYATWDZ-HYATHYYT。
2.屏蔽通信电缆绝缘电气强度：导体之间1min1kv不击穿导体与屏蔽1min3kv不击穿3.屏蔽通信电缆绝缘电阻：每根芯线与其余线芯接地，HYA电缆大于10000MΩ.km,HYAT电缆大于3000MΩ.km。
本厂主要生产铁路信号电缆，主要是指铁路专用信号电缆，适用于额定电压交流500V或直流1000V及以下传输铁路数字信号、音频信号或自动信号装置的控制电路。
4.铁路信号电缆特性：电缆的使用环境温度为-45～+60℃，敷设的环境温度不低于-10℃。
电缆型号、名称、规格及用途型号名称规格用途MKYJV铜芯聚乙烯绝缘聚氯乙烯护套阻燃煤矿用控制电缆（2-14)**(0.75-2.5)铺设在室内、电缆内、管道等固定场合MKYJV22铜芯聚乙烯绝缘聚氯乙烯护套钢带锴装阻燃煤矿用交联控制电缆(7-61)*(0.75-。
Precautions for installation of power cables: keep 2m distance when the cable is installed in parallel with the thermal pipe, and 0.5m should be maintained when crossing. The cable shall be installed at a distance of 0.5m in parallel or across other pipelines. When the cable is directly buried and installed, the direct buried depth of 1-35kv cable is less than 0.7m. When 10KV and below cables are installed in parallel, the net distance between them shall not be less than 0.1m and 10-35kv shall not be less than 0.25m. The distance of cross installation is not less than 0.5m. Cable laying temperature lower than 0 ℃, bending radius: multi-core cable or 15 (D + D), a single cable 20 or more (D + D), (D for cable diameter, D) for the conductor diameter. ? 6KV and above cable connector:? When installing the terminal head of the cable, the semiconductor electrical shielding layer must be stripped off. During operation, the insulation shall not be damaged. The shield end should be flat and the graphite layer (carbon particles) should be clean. (2) plastic cable end copper tape screened and armor must be good grounding, the short circuit also follow this principle, avoid unbalanced three-phase run ShiGang armoured end produce inductive electromotive force, and even "lighter" and sheath and other accidents. It is required to use my tinplate to braid copper wire for grounding lead. When connecting with the cable copper belt, it should be welded with chromium-iron tin. ? The shield of three-phase copper tape should be connected with ground wire respectively. Note that the shielded ground wire and steel armor ground wire should be separately drawn out and insulated from each other. The position of the welded ground wire should be as low as possible. Basic re for cable terminals and intermediate joints: a. good conductor connection; B. The insulation is reliable, and it is recommended to use irradiated cross-linked heat-shrinkable silicone rubber insulation materials; C. good sealing; D. sufficient mechanical strength to meet various operating conditions. The end of the cable must be used to prevent water and other corrosive materials from corroding, in order to prevent the water tree caused by the aging of the insulation layer and breakdown. Crane or forklift should be used for the loading and unloading of cables. It is forbidden to run flat or lay flat. For installation of large cables, cable laying cart should be used to avoid external damage or abrasion caused by manual dragging. If the cable cannot be laid in time for some reason, it should be stored in a dry place to prevent sunlight from exploding and water entering the end of the cable. ? Note: the installation of wire and cable should be familiar with the performance of wire and cable installation personnel or full-time technical personnel, if there are still unclear matters, ball related technical department or technical department of our factory.
1P的单极断路器2P二极断路器3P三极断路器4P四极断路器1P+N：单极+N断路器3P+N——带零线端子的三极开关(零线不开断)：1P(1极)的断路器：它的接线头只有一个,适用于断开一根相线；：2P(2极)的断路器：它的接线头有二个,一个接相线一个接零线,这种开关适用于控制一相一零，控制火线、零线，且都具有热磁脱扣功能；：1P+N的断路器：它的接线头二个，可以接入火线和零线，控制火线、零线，但只有火线具有热磁脱扣功能(零线不开断)：3P(3极)的断路器：它的接线头有三个,三个都是接"火"线,这种开关用于控制三相380V电压线路；：4P(4极）的断路器：它的接线头有四个,三个都接"火"线,一个零线,这种开关适用于控制三相四线制线路；选用：如果设备额定电压是220V时，选用1P或2P的断路器，如果是380V，就需要3P或4P了，对于设备不需要接入零线的就只选3P就可以了，如电动机、风机、水泵等只用3P断路器；如是380V的开水器、热水器之类的设备，就需要4P了，还要带漏电保护功能的断路器，这是为防止漏电事故。
Conditions of use: 1: using temperature (℃) : - 2:40 ~ + 60 ℃ relative humidity: 98% at 40 ℃ 3: install the laying temperature is not low, such as: 15 ℃ 4: allows the minimum bending radius: indoor is not less than five times, ten times outdoor.
我公司对售前、售中、售后服务作出如下承诺：1、为了加深对我公司的了解，我们热情欢迎贵方领导、专家来厂考察，我公司将提供食宿和工作上的便利。
2、向用户提供产品价格信息和产品品质信息。
3、为保证产品的良好性能，我公司采用国内优质材料，并按ISO9001质量保证体系的要求，对材料的采购和验收进行严格控制，不合格材料严禁使用。