平罗HBV2X1.0电话电线康乐1) production time: the goods will be delivered on the same day as soon as they are available in stock, and the quantity to be customized shall be determined. 2) sales discount: large quantity 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 requirements 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.
HYAT23 armoured communication cable USES: armoured communication cable mechanical protective layer can be appended to the structure of the cable, with the mechanical strength of the cable, antierosion capability, is vulnerable to mechanical and vulnerable to erosion area and design of telephone cable. Any kind of laying can be adopted, which is more suitable for direct buried laying in rock area. Armored communication cable structure: 1. Basic cable: any filled and unfilled cable with single sheath or double sheath structure. 2. Armored communication cable mechanical protection layer: type 53 adopts 0.15mm thick corrugated steel belt, which is longitudinal wrapped on the basic cable and overlapped on both sides. The surface of the steel belt is coated with plastic to prevent corrosion and water intrusion. The type 23,22 has similar performance with double steel band wrapping. 3. Armored communication cable sheath: black high-molecular weight low-density polyurethane or polyurethane sheath. Sheath thickness may depend on the basic cable outer diameter.
RS485 cable product description: the characteristic impedance of 100 ohms, conductor is 2 * 2 * 24 awg multi-strand tin electrolytic copper wire twisted and become, insulating sheath like installation of design and color recognition, aluminum foil/polyester with total shielding, additional stranded tinned copper wire grounding conductor, industrial gray PVC outer sheath, 1 of the RS - 485 communication cable, the characteristic impedance of 120 ohms, conductor is 2 * 24 awg stranded tinned copper wire, PE insulation, covered with aluminum foil/polyester composite with + 90% tin plated copper wire this double shielding, comes with a grounding conductor is RS - 485 communication cable.
HPVV配线通信电缆。
描述：电缆用全色谱的实心聚乙烯绝缘，经过绝缘的导线被扭绞成线对，由线对绞合成缆芯。
电缆缆芯外加上适宜的缆芯包覆材料，聚氯乙烯护套。
结构：导线无氧铜线，高密度聚乙烯绝缘，聚氯乙烯护套，并按照全色谱标明绝缘线的颜色。
二、技术参数：导线线芯长期允许工作温度不超过70℃，允许弯曲半径不小于电缆外径的10倍。
电缆线芯之间，线芯与屏蔽之间能承受交流50HZ1000V电压试验5min。
电缆任一绝缘线芯在IKHz时的工作电容不大于200nF/KM。
一般来说，不管我们做什么工作，从事什么行业，保障自身生命安全都是第一位的。
这也就是高压验电器一个比较重要的作用，为了检修工人在检查高压线路和电力设备时，判断这些设备是否带电，以此来判断的工作计划。
可以这样说：高压验电器，是电力检修员工开启生命保障的重要一步。
高压验电器是用来检查高压线路和电力设备是否带电的工具，是变电所常用的最基本的安全用具。
检查线路或者设备是否带电，目的是为了保障人身安全，正确使用高压验电器验电必须做到如下几点：投入使用的高压验电器必须是经电气试验合格的验电器，高压验电器必须定期试验，确保其性能良好。
产品性能卓越，广泛应用于复杂的工业自动化控制网络及楼宇自控网络一、电缆型号：ZHT-RS486-8系（多股低电容计算机及计算机P.O.S电缆）二、执行标准：执行标准：Q/ZH09.三、产品结构示意图：四、性能参数项目单位指标1*2*24AWG（8201）2*2*24AWG（8202）1*。
450/750 v polyvinyl chloride insulated control cable, applicable to dc and ac 50 hz, rated voltage 450/750 v power plants, power plants, factories, mines, ports and petrochemical enterprises such as long-distance control loop, as a connecting line between electrical instrumentation and automation instrumentation, phoresy all kinds of electric energy role, make the whole electric, reliable operation.
6、使用特性：电缆导体的长期允许工作温度为70℃，电缆敷设温度应不低于0℃。
电缆允许的弯曲半径：对有铠装或铜带屏蔽结构的电缆应不小于电缆外径的12倍。
对有屏蔽层结构的软电缆，应不小于电缆外径的6倍。
对无铠装层的电缆应不小于电缆外径的6倍。
一、阻燃本安安全系统用检测仪器电缆1、性能特性：a、电缆长期工作温度：70℃b、最低环境温度：－40℃c、电缆敷设温度：不低于0℃d、敷设时允许弯曲半径：不小于电缆外径6倍，铠装型电缆则应不小于电缆外径的12倍e、额定电压：300/500V2、电缆的型号、名称、适用范围：型号名称适用范围ZR-B。
Flame-retardant audio cable; ZC manufacuring HYA, ZC HYAC, ZC - HYAT, ZC - HYA53, ZC HYAT53, ZC HYV, ZC - HYA23, ZC - HYAT23, ZC HYA22, ZC HYAT22 product description: our factory produced communication cable is suitable for the fixed overhead laying or buried in the city ZR - manufacuring HYA: copper solid tidal polyolefin insulation layer of flame retardant polyethylene sheath duct ZC - HYAT: Copper solid tidal level flame retardant polyolefin insulated filled type PE sheathed in communication cable ZC - edge tidal layer PE sheathed gangsu belt sheathed flame-retardant PE sheathed in communication cable ZC - HYAT53: copper solid polyolefin insulated filled type HYAC: copper solid polyolefin insulation messenger tidal level flame retardant polyethylene sheath duct ZC - HYA53: copper solid polyolefin unique tidal layer PE sheathed gangsu belt sheathed flame-retardant PE sheath duct ZC - HYA22: Copper solid tidal polyolefin insulation layer polyethylene sheath steel tape armoured flame retardant PVC sheathed in communication cable ZC - HYA23: copper solid tidal polyolefin insulation layer polyethylene sheath steel tape armoured flame retardant polyethylene sheath duct ZC - HYAT22: copper solid polyolefin insulation filling type tidal layer polyethylene sheath steel tape armoured flame retardant PVC sheathed in communication cable ZC - HYAT23: copper solid polyolefin insulated filled type tidal layer PE sheath steel tape armoured flame retardant PE sheathed communication cable in the city
9、低烟无卤阻燃电缆能经受GB12666.5规定的成束燃烧试验且燃烧时的烟浓度符合GB12666.7（IEC1034）的规定，燃烧析出气体水溶液的PH值≥4.3，导电率≤10μs/mm并符合IEC754-2的要求。
NE555时基电路，为电压比较器和R-S基本触发器的混成电路，可方便地构成单稳态（延时、定时）电路、双稳态（开关）电路及无稳态（振荡）电路。
其构成电路之简便和应用之广，素有“**电路”之称。
图NE555时基电路原理框图及引脚功能如上图所示，RRR3对供电Vcc分压，使N1比较器基准端（同相输入端）电压为1/3Vcc，N2基准端（反相输入端）电压为2/3Vcc。
芯片5脚为调整端，接入上拉或下拉电阻时，可改变两个基准端电压的高低。
ZRKVV阻燃铜芯聚氯乙烯绝缘聚氯乙烯护套450/7504-370.75-10敷设在室内，电缆沟、管道等要求阻燃的固定场合。
ZRKVV22铜芯聚氯乙烯绝缘聚氯乙烯护套编织钢带铠装zrkvv22电缆450/7504-370.75-10敷设在室内，电缆沟、管道直埋等能承受较大机械外力有阻燃要求的固定场合。
在一定条件下，也可用于传输2048kbit/s以上的数字信号。
适用于矿山、电厂、市内、近郊及局部地区。
特别适用于500KV及以下的发电厂，变电站控制线路。
采用塑料绝缘特种屏蔽控制电缆可抑制外界电、磁场的干扰。