控制信号双绞电线电缆控制信号双绞电线电缆RVSP22RVSP22铠装屏蔽双绞线RVSP22铠装屏蔽双绞电缆屏蔽双绞电缆RVSP(屏蔽双绞线,屏蔽电缆,屏蔽双绞电缆控制信号双绞电线电缆RVVPS RVVSP ZR-RVVPS ZR-RVVSP RVSP ZR-RVSP绞型屏蔽软电。
Integrated stranded railway signal cable implementation standard GB/ t2476-1993. Railway signal cables are suitable for transmission of railway control signals, audio signals or fixed cables for fixed installation in rated voltage ac 500V or dc 1000V or below. Product name, model, specification and scope: plastic insulation and PVC sheathed railway signal cable PTYAH; PTYA; PZYA; PTYV; PTYY,; PTY22; PTY23; (PZY02; PZY03; PZY23 PZY22) 1/0.8mm (1/1.0mm) 2-48 core is suitable for railway signal communication, fire alarm signal, telegraph and other automatic device systems with rated voltage ac 500V or dc 1000V or below. Polyethylene polythene insulation composite sheath steel tape armoured PVC sheathed railway signal cable PTYA23 PTYA22 PTY23 PTY22 PTYAH23 PZYA23 PZYA22 PZY23 PZY22 0.8 mm (1/1.0 mm) 4-61 core is fit for ac rated voltage 500 v or dc voltage 1000 v and below audio signal transmission and fixed installation of railway signal and group control automation assembly line, is of general automatic transmission railway signal, can also transmit frequency shift automatic block and business phone and other audio signal. 4, using features: cable in - 40 ℃ to + 50 ℃ environment use. Cable conductor long-term working temperature shall not exceed 70 ℃. Ordinary sheath of the cable laying under the environment temperature is not lower than 5 ℃, resistance to sheath for - 10 ℃. The bending radius shall not be less than 15 times of the outer diameter of the cable (when laying) and shall be applicable to any horizontal disturbance
HYA23双铠双护套通信电缆HYAT系列充油通信电缆(HYAT,HYAT23,HYAT53:HYAT23100X2X0.4的详细资料：大对数铁皮电缆HYAT23HYA23200X2X0.4大对数铠装电缆HYAT23 大对数镀锌铁皮电缆HYA53/HYAT53（防鼠咬/直埋）HYAT53直埋型电缆主要。
DJYP2V(R)P2-22聚乙烯绝缘铜带绕包分屏总屏聚氯乙烯护套钢带铠装计算机用屏蔽(软)电缆。
DJYVP3(R)-22聚乙烯绝缘铝塑复合带绕包总屏聚氯乙烯护套钢带铠装计算机用屏蔽(软)电缆。
DJYP3V(R)22聚乙烯绝缘铝塑复合带绕包分屏聚氯乙烯护套钢带铠装计算机用屏蔽(软)电缆。
本厂专业生产：RVVP屏蔽线、RVV护套线、SYV、SYWV视频线、AVVR信号线、安防线缆、监控线缆、音频线、音响线、网络线、各种信号线、各种塑铜线、控制屏蔽电缆、控制电缆、各种阻燃系列线缆、电力电缆、通信电缆、橡套电缆。
plc使用与继电器电路图极为相似的梯形图语言，如果用PLC改造继电器控制系统，根据继电器电路图来设计梯形图是一条捷径。
这是因为原有的继电器控制系统经过长时间的使用和考验，已经被证明能完成系统要求的控制功能，而继电器电路图又与梯形图有很多相似之处，可以将继电器电路图“翻译”成梯形图，即用PLC的外部硬件接线图和梯形图有很多想似之处，继电器系统的功能。
这种设计方法一般不需要改动控制面板，保持了系统原有的外部特性，操作人员不用改变长期形成的操作习惯。
在缆芯中和屏蔽层的内外表面用石油膏填充和浇注处理，以防止水分侵入。
在一30~C一60~C的环境条件下，电缆的机械和电气性能保持不变。
*4*结构：1、导线：退火裸铜线，铜线直径为0．32，0．40，0．50，0．60，0．70，0．80，0．90（mm）。
产品使用特性：1.电缆导体的长期允许工作温度为70℃；2.电缆的敷设温度应不低于0℃，允许弯曲半径；无铠装层的电缆应不小于电缆外径6倍；有铠装层或铜带屏蔽结构的电缆应不小于电缆外径的12倍，有屏蔽结构的软电缆应不小于电缆外径的6倍。
产品用途：敷设在室内、电缆沟、管道等要求耐高温静电屏蔽的场合。
6、最低安装敷设温度：序号1～4-45℃序号5～140℃。
HJVV、HJVVP、HPVV通信电缆用途：主要用于传输音频、150kHZ及以下的模拟信号2048kbit/s及以下的数字信号。
The type 23,22 has similar performance with double steel band wrapping. Armor communication cable sheath: black high-molecular weight low-density polyethylene or polyvinyl chloride sheath. Sheath thickness may depend on the basic cable outer diameter.
MHYBV型弯曲半径不小于电缆直径的10倍。
MHYVP型弯曲半径不小于电缆直径的10倍。
MHY32型弯曲半径不小于电缆直径的15倍。
概述：耐火电缆是指在火焰燃烧情况下能够保持一定时间安全运行的电缆。
耐火电缆广泛应用于高层建筑、地下铁道、地下街、大型电站及重要的工矿企业等与防火安全和消防救生有关的地方，例如，消防设备及紧急向导灯等应急设施的供电线路和控制线路。
In order to evaluate the flame-retardant performance of wire cables, iec 60332-1, iec 60332-2 and iec 60332-3 were formulated respectively. Iec60332-1 and iec60332-2 are respectively used to evaluate the flame retardant capability of a single cable when it is laid on an incline and vertically (corresponding to GB12666.3 and GB12666.4 in China). Iec60332-3 (domestic equivalent to gb12666.5-90) is used to evaluate the flame retardant capability of beam cable when it is vertical, compared with that of beam cable when it is vertical.
定子磁极通过气隙与转子产生相同的极数。
其结构简单，一个有三角形孔的磁极，可近似看成4极。
此电机用于水表的流量计等。
下图是一种单相步进电机的外观照片。
此单相步进电机由照片看出，定子磁极的前端朝同一方向倾斜，从而改变转子磁路的磁导，使转子能沿一个方向旋转，其功能与上图（单相步进电机外观与结构）的定子相同。
此种单相步进电机转子为永磁磁极，其圆周上有N和S极共30个，定子为单相，总磁极数为30,用气隙作转子导向。
低烟无卤电线特性：低烟无卤电缆(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。
使用特征电缆在-40℃-+50℃环境下使用电缆导体长期工作温度应不超过70℃普通护套的电缆在环境温度不低于-5℃下敷设，耐寒护套为-10℃弯曲半径不低于电缆外径的15倍（敷设时），且适用于任何水平差的干扰。
1. Product implementation standard: gb9330-88 (refer to IEC227, better voltage resistance than IEC227), ga306-2001 (flame retardant type). 2. Purpose: this product is applicable to control, signal protection and measuring lines with rated voltage of 450/750v and below under dc and ac 50hz-60hz. 3, product specifications and scope: product specifications range using occasions KYV, KYVP, KYVP2 0.5 - was 10, 2-61 core is the product high insulation resistance, waterproof properties is strong, good cold resistance, suitable for weak current control system or strong electromagnetic interference zone. KYV20,KYV22 0.5-10mm2,4-61 core FYV30,KYV32 0.5-10mm2,7-61 core KYVR 0.5-6mm2,2-61 core KYVRP 0.5-4mm2,2-61 core KYVP22, kyvp2-22 1.5-10mm2,4-61 core note: model pre-flame retardant is suitable for fire retardant environment. 4, using features: cable temperature under installation should not below 0 ℃, the cable conductor long-term allowed working temperature is 70 ℃. The allowable bending radius of the cable: for the armored cable, it should not be less than 6 times the outer diameter of the cable. For the cable with armored or copper belt shielding structure, it shall be no less than 12 times the outer diameter of the cable. For soft cable with shield layer structure, it should be no less than 6 times the outer diameter of the cable.
Purpose and features: this product is suitable for transmission and communication in mine and underground monitoring. This product is flame retardant. Ii. Implementation: mt818.14-1999 fire retardant communication cable for coal mine and enterprise Q/ jg1710-2006. Iii. Usage features:? 1, cable long-term working temperature: - 30 ~ 60 ℃, cable laying temperature:????? Not below 0 ℃ 3, MHYV type bending radius is not less than 10 times of cable diameter. The bending radius of MHYBV is not less than 10 times of the cable diameter. The bending radius of MHYVP is not less than 10 times of cable diameter. The bending radius of MHY32 is not less than 15 times of the cable diameter.