BV line, BVR line, RVSP double stranded shielded cable, RVS double stranded cable, RVB parallel line, RV line RVSP Shielded twisted-pair cable RVSP (shielded twisted-pair cable, shielded cable, shielding twisted-pair electric (HYVP, RVVP) RVVP twisted-pair shielded cable < < shielded wire > > is shielded twisted-pair cable RVSP series on the basis of RVS coupled with a layer of copper wire shielding net, so the transmission loss, shielding the outside world better than RVS series, but because of the copper wire shielding network, its cost is also much higher than RVS series. Are often used to those who has a high requirement on the transmission. Technical indicators: polyvinyl chloride insulated cable long-term allowed working temperature over 70 ℃, the cable temperature under installation should not below 0 ℃, outer diameter (D) is less than 25 The allowable bending radius of mm cable shall not be less than 4 times the outer diameter of the cable. Diameter (D) of 25 mm and above of permissive bending radius of cable, not less than 6 times of cable diameter. The product description: this product is fit for ac rated voltage up to and including 450/750 power, electrical appliances, instruments, instrumentation, telecommunications equipment, lighting circuit and automatic device fixed installation, connection with a soft line, installed with a soft line and strong with shielded wire, according to the needs of use also can produce this kind of wire and cable fire retardant class (ZR), high flame retardant class (GZR), heat-resistant class (90 ℃, 105 ℃, 200 ℃, 250 ℃), low temperature resistant, nylon sheath, refractory (NH ), the company's main products: power cable control computer cable wire and cable wire and cable we specialized in wire and cable production and sales. Our products are high quality and low price, complete variety, there are all kinds of wire and cable, domestic orders can be delivery. We will with the high quality service to your satisfaction. If you have please telephone subscribers.
EISC - SS fire-retardant explosion-proof intrinsically safe cable EISC - SS - R flame retardant. Explosion-proof intrinsically safe cable (wire) (business standard) the enterprise standard main technical indicators are reference articles IEC227 (1979) preparing publications and British BS5308Part1 standard materials. Purpose: this product is designed for laying sites with rated ac voltage of 450/750v or less, and strong anti-rf interference and anti-near field coupling ability for essential safety requirements. It is also suitable for distribution system and essential safety circuit signal transmission of industrial departments operating in gas explosion environment. Operating conditions: 1) rated voltage is 450/750v. 2) cable conductor long-term allowed working temperature is 70 ℃. 3) the cable temperature under installation should not below 0 ℃, allowed recommended no armoured cable bending radius should not less than 6 times of cable diameter. The armored cable shall not be less than 12 times the outer diameter of the cable.
执行标准：JB8734.5-1998产品数量长期大量供应包装说明200米/卷；500米/卷线芯材质无氧铜芯数1～24芯护套材质PVC/PE电线最大外径26（mm）标称截面0.12～2.5（mm2）RVVPRVVP屏蔽电缆缆芯：绝缘芯线绞合成缆，绕包聚酯薄膜带（PP带）RVVP屏蔽电缆护套：黑色/白色。
MT《煤矿用阻燃电缆阻燃性的试验方法和判定规则》及Q/TX《煤矿用塑料绝缘控制电缆》MKYJV电缆,MKYJVP电缆,MKYjVP2电缆,MKYJV22电缆,MKYJV32电缆,MKYJVR电缆,MKYJVRP电缆,MKYJVP22电缆等规格型号的煤矿用阻燃控制电缆，推荐电缆芯数为2,3,4,5,7。
The low-smoke halogen free cable is produced by the company in accordance with the French RCCE and NF series standards, GB/T18380, GB/T19216, GB/T17651, GB/T17650 and international standards.
VR型步进电机定子磁极吸引转子时，由于转子磁极为**磁极，有磁化的N极和S极，不论定子绕组激磁所产生极性为N极还是S极均会产生吸引力。定子磁极激磁为N极时，吸引S极性转子磁极，激磁S极性的定子磁极会吸引转子的N磁极。定子磁极需要极性的切换。激磁定子磁极的线圈为单线圈绕组，磁极正反切换，则电流需正反向流因此驱动电路为双极方式。磁极上绕有两个线圈组成双线圈，一个线圈直流通电产生的极性，与另一个线圈直流通电产生的极性相反，此为单极方式。
二、产品执行标准Q/AT2003-4三、基本型号及名称型号名称铜芯Cu铝芯ALWFYS-YJYWFYS-YJLY铜芯(铝芯)交联聚乙烯绝缘无毒无害防蚁鼠聚烯烃护套电力电缆WFYS-YJY23WFYS-YJLY23铜芯(铝芯)交联聚乙烯绝缘钢带铠装无毒无害防蚁鼠聚烯烃护套电力电缆WFYS。
企业于2001年率先通过ISO9001：2000国际质量体系认证。通信电缆具有泰尔认证中心颁发的产品认证证书。2002年我厂生产的煤矿用阻燃通信电缆，通过了国家煤炭部安全标志办公室的企业必须条件审查和产品安全性能检测。
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，HYA电缆大于10000MΩ.km,HYAT电缆大于3000MΩ.km。4.工作电容：平均值52±2nF/km5.远端串音防卫度：150kHZ时指定组合的功率平均值大于69dB/km。
五、规格范围型号标称截面（mm2）0.50.751.01.52.54610芯数 KVV KVVP2-612-142-10 KVVP24-614-144-10 KVV227-614-614-144-10 KVVR4-61 KVVRP4-61。
型号及名称：KVV铜芯聚氯乙烯绝缘聚氯乙烯护套控制电缆KVVP铜芯聚氯乙烯绝缘聚氯乙烯护套编织屏蔽控制电缆KVV铜芯聚氯乙烯绝缘聚氯乙烯护套控制电缆KVVP2铜芯聚氯乙烯绝缘聚氯乙烯护套铜带屏蔽控制电缆KVV22铜芯聚氯乙烯绝缘聚氯乙烯护套钢带铠装控制电缆KVVR铜芯聚氯乙烯绝缘聚氯乙烯护套控制软电。
阻燃电缆指标1．成品电缆导体(R类)直流电阻(符合GB3956规定)2．工频电压试验：交流50HZ3.5KV/5min不击穿IEC阻燃等级为了评定线缆的阻燃性能优劣，分别制定了IEC、IEC和IEC三个标准。
学习电工线路的识图是进入电工领域的最基本的环节。识图前，需要首先了解电工线路识图的一些基本要求和原则，在此基础上掌握好识图的基本方法和步骤，可有效提高识图的技能水平和准确性。学习识图，需要首先掌握一定的方式与方法，学习和参照别人的一些经验，并在此基础上指导我们找到一些规律，是快速掌握识图技能的一条“捷径”。结合电气文字符号、图形符号等进行识图电工线路主要是利用各种电器图形符号来表示其结构和工作原理的。
Organization code certificate: 10950374-4 CCC certificate no. : 2003010105102124 business license registration number: 131025100000917 registration certificate: 131025109503744 remittance account number: 91608040020110001507 opening bank: liuguxian rural credit cooperative, dacheng county, hebei province
本公司郑重声明1、签订产品质量保障书，承诺-不合格产品绝不出厂。2、两年内产品质量跟踪服务，并将客户服务记录在档案保存20年。3、确因产品质量问题，我公司将保修、包退、包换、满足客户要求。本厂电缆含税，全国免费送货。
另供：ZR-RVV、RVVP、RVP、ZR-RVS、多股阻燃电源线ZA-RVV RVVZZRRVVZRVVR多股阻燃软电缆3X10+13X16+1 3X25+1 3X35+13X50+1 3X70+1 3X95+1 3X120 +1 3X240 +1 3X150 3X185+1 。
Basic cable: any filled and unfilled cable with a single or double sheath structure.