（包括农村电话局用）二． 电缆适用温度为-10℃～50℃，电缆安装时的环境温度不低于0℃。弯曲半径不小于电缆直径的10倍。应用：室内外电话布线。。主要用于管道敷没，在架空安装时需要用吊线支承。
Call communication cable product features low cable of rated voltage: the minimum working temperature is not lower than 500 v low cable - 40 ℃. The highest long-term low cable allows working temperature: polyethylene insulation is not higher than 70 ℃; Cross-linked polyethylene insulation is not higher than 90 ℃. Low cable temperature: the minimum 0 ℃. Preheat if below minimum laying temperature. 's main electric cable performance: (l) 20 ℃ conductor dc resistance: 0.75 was no more than 26 / km; 2.0 was no greater than 9.8 Ω/km (2) 20 ℃ when the cable insulation resistance: 0.75 was not less than 300 m Ω • km; 2. Om Ω • Omm2 not small to 10 km. (3) voltage test between cable core and cable core, and between wire core and shield through ac 2500V/5min. (4) the working capacitance of the cable set shall not exceed 100pF/m when the test frequency is 1kHz. (5) the capacitance imbalance of the cable set shall not be greater than 250pF when the test frequency is lkHz and the cable length is 250Im. The combustion characteristics of the ending cable
该电缆主要用于交流或直流300V及以下的工作系统，在500V及以下时能正常工作。市内通信电缆、铁路信号电缆、电源线，电气装备用电线电缆，视频线,系统专用电缆。等专业生产厂家。企业拥有职工300多人，工程技术人员30多人，工厂占地面积20000平方米，拥有固定资产1500万元，企业拥有生产和检验设备的总数120多台（件），年产值1.5亿元。
MHYBV(PUYBV)煤矿用聚乙烯绝缘镀锌钢丝编织铠装阻燃聚氯乙烯护套通信电缆5-501/0.8用于机械冲击较高的平巷、斜巷煤矿用阻燃通信电缆……mh聚乙烯绝缘……Y铜质线芯……省落铝-聚乙烯粘结护层……A聚乙烯内护层……省落铜丝编织铠装……B蓝阻燃聚氯乙烯护套……V钢丝铠装蓝阻燃聚氯乙烯护。
特性：(1) 抗张强度比一般PVC电线大：一般PVC电线抗张强度大于1.05Kgf/mm2，而低烟无卤电线抗张强度大于1.2Kgf/mm2；(2) 具有良好的耐候性(-30℃~105℃)；(3) 具备良好的柔软度(硬度为80—90)；(4) 具有非移性(因为此产品配方中不用添加可塑剂，故不会有移形性。
与电阻温度计相比，热电偶温度计能测更高的温度。1同型热电偶偶丝越细、越长，则输出电势越高。1压力表的检定一般分增压检定(正行程)和降压检定(反行程)，并且在每一检定点上要进行轻敲，前后示值检定。1压力表不必垂直安装。1用差压法测液位，启动变送器时应先打开平衡阀和正负压阀中的一个阀，然后关闭平衡阀，开启另一个阀。1差压式液位计的安装位置可以安装在最低液位之上。1吹气法测量液位，敞口容器和闭口容器都适用。
1；ZR-KVVRP32多股铜芯、对绞、铜丝编织总屏蔽阻燃仪表信号钢丝铠装电缆1x2x1.5mm2千米6X2X1.5mm20.14X2X1.5mm20.11x2x1.5mm21.212X2X1.5mm22-KVVP32铜芯聚乙烯绝缘聚乙烯护套对绞、总屏。
公司主营产品：电力电缆控制电缆计算机电缆电缆电线电线电缆我们专业从事电线电缆的生产及销售.我们的产品****,种类齐全,有各式电线电缆,国内订购均可配送.我们将以最优质的服务达到您的满意天津市电缆总厂第一分厂主要产品目录1、煤矿用通信电缆MHYV(1-10对)MHYAV(5-100对)MHYA对)M。
Dense places; In places with high safety requirements for dense cables or closed channels, automatic fire detection and alarm devices suitable for reliable operation of the environment should be equipped. The oil supply system of open oil charging cable should be equipped with automatic fire alarm and lock device which can reflect the state of oil spraying. Places with high safety requirements, such as dense cable parts of underground public facilities, terminal setting of multi-return oil-filled cables and other places, can be equipped with special fire fighting facilities such as water spray extinguishing.
计算机电缆本产品适用于电压300/500v电力、冶金、石化等行业以电子计算机为主的自动化控制系统、计算机集散控制系统、自动化控制系统作控制线以及检测用仪器仪表用计算机电缆。使用特性：电压300/500v，最高工作温度聚氯乙烯绝缘不超过70℃交联聚乙烯绝缘90℃低烟无卤阻燃70°。
3：氟塑料高温补偿导线补偿电缆KX-GA-VVP聚氯乙烯绝缘和护套铜丝编织总屏蔽精密级K分度号热电偶用补偿电缆KX-GA-VVRP聚氯乙烯绝缘和护套铜丝编织总屏蔽精密级K分度号热电偶用补偿软电缆KX-GA-VPVP聚氯乙烯绝缘和护套铜丝编织分屏加总屏蔽精密级K分度号热电偶用补偿电缆KX-GA-。
型号名称主要使用范围 HUVV铜芯聚氯乙烯绝缘聚氯乙烯扩套矿用电话电缆敷设在矿井中，一般场合 对绞式聚乙烯绝缘聚氯乙烯护套市内通信电缆型号 名称CPEV-S绞式聚乙烯绝缘聚氯乙烯护套市内通信电缆通信电缆-HYA电缆|HYA23电缆|HYA22电缆|HYA53电缆|室外电话线HYA53HYA53钢塑。
低速过电流保护环节：当发电机转速下降或因其他原因使磁场电流超过规定值时，Jl动作，将触发器电源短路，可控硅立即关闭，发电机失压，避免可控硅过电流而损坏。上面电路图虽然老，但控制原理与现在普通型发电机这一个工作原理。你所说发电机电压低，则说明励磁电流不够，而这个问题主要出在比技环节。这时你可将同步变压器B1的220Ⅴ从发电机线路脱开，另外用市电220Ⅴ电源输到B1，看同步变压器的三个低压绕组的交流电压是否达到图上标注的值，AC2.5×2AC70VAC32Ⅴ。
Our products are widely used in all major coal mine systems and coal mine monitoring systems. Sales to coal companies and mining groups throughout the country; And become a number of mining equipment companies supporting products, established long-term cooperation relations, products have been users praise and trust! The city at the same time my company production of all plastic communication cable, telephone cable, big logarithmic communication cable, computer cable, power cord of communication equipment and railway signal cable, airport with flare path, various documents are complete, reliable quality!!!!!
1.5综合护套铁路信号电缆的理想屏蔽系数≤0.8；铝护套铁路信号电缆的理想屏蔽系数≤0.32型号、名称及规格-铁路信号电缆PTYAT22型号名称敷设范围规格（芯）-铁路信号电缆PTYAT22PTY23聚乙烯绝缘钢带铠装聚乙烯外护套铁路信号电缆PZYA22聚乙烯绝缘综合护套钢带铠装聚氯乙烯外护套铁路信。
主要产品：矿用通信电缆，矿用控制电缆，计算机电缆，铁路信号电缆，电源电缆，电话电缆，铠装通信电缆，矿用通讯电缆，矿用信号电缆，软芯屏蔽控制电缆，矿用电话电缆1产品名称：矿用电话电缆.2执行标准：MT818.3、用途:本产品用于井下作电话通信焊线、配线和用户线路。
产品型号：TRVVSP中度柔性双护套双绞屏蔽拖链电缆电缆结构：导体：超细精绞无氧铜丝符合VDE0295CLASS6标准绝缘：特殊混合PVC柔性绝缘线芯：两两绞合短节距成对,成对结构后分层集束,防扭结结构设计护层：(可选)无纺布总屏蔽：无氧铜丝编织屏蔽(70%以上密度)护套：丁腈柔性护套颜色：黑色(R。