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如机床加工设备、物流输送系统、港口机械、成套设备安装工程。产品特点：可根据客户要求定做彩色线芯或编码线芯。采用优质PVC混合料，减小了电缆外径降低对安装空间的要求。设计使用循环弯曲寿命为500万次,实际使用已超过600万次。
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）RVVP RVVP 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。
产品型号及名称 ZR-DJYPV计算机电缆：聚乙烯绝缘铜丝编织分屏蔽聚氯乙烯护套阻燃型电子计算机用电缆 ZR-DJYVP计算机电缆：聚乙烯绝缘铜丝编织总屏蔽聚氯乙烯护套阻燃型电子计算机用电缆 ZR-DJYPVP计算机电缆：聚乙烯绝缘铜丝编织分屏蔽、总屏蔽聚氯乙烯护套阻燃型电子计算机用电缆 ZR-D。
结构导线：实心退火铜线。铜线直径为0.32、0.4、0.6、0.8（mm）。绝缘：高密度聚乙烯，并按照全色谱标明绝缘线的颜色。绝缘线对：把单根绝缘线按照不同的节距扭绞成对，并进行科学的配置；以最大限度减少串音，并采用规定的色谱组合以便识别线对。
电缆地线芯绝缘采用具有抗氧化性能的K型B类低密度聚乙烯。聚乙烯的绝缘电阻高，耐电压好，介电系数小和介质损耗温度和变频率的影响也小，不但能满足传输性能的要求，而且能确保电缆的使用寿命。为了减少回路间的相互串扰和外部干扰，电缆采用屏蔽结构。
分压电路工作原理分析方法的要点分析分压电路的关键点有以下两个。找出输入端。需要分析输入信号电压从哪里输入到分压电路中，具体的输入电流回路如何。电路识图中确定输入信号电流回路的方法：从信号电压的输入端出发，沿至少两个元器件（不一定非要是电阻器）到达地线。找出输出端，即输出电压取自于电路的哪个端点。分压电路输出的信号电压要送到下一级电路中，理论上分压电路的下一级电路输入端是分压电路的输出端，但是识图中这种方法的可操作性差，因为有时分析出下一级电路的输入端比较困难，所以可以采用更为简便的方法进行分析：找出分压电路中的所有元器件，从地线向上端分析，发现某元器件与分压电路之外的其他电路相连时，这一连接点便是分压电路的输出端，这一点的电压就是分压电路的输出电压。
全塑市话电缆主要电气性能：1.直流电阻:20℃,0.4≤148Ω/km0.5≤95.0Ω/km0.6≤65.8Ω/km0.8≤36.6Ω/km2.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,充气电缆大于10000MΩ.km,填充式电缆。
Fire retardant control cable model zr-kvvp22, zr-kvvvp2-22, zr-kvvvvp2, our company has been supplying for many years: 2. Zr-kvvp, zrc-kvvp, za-kvvp, zrb-kvvp, za-kvvrp, zc-kvvvrp, zrc-kvrp, zrc-kvrp, zrb-kvvvvvvvvp2, krkvp2-vrkp22 -KVVP32, etc. Control cables for mine flame retardant control cables: MKVV mkvvvvvvvvvvvvvvvvvv32 MKVVVRP: this product can be manufactured according to gb9330-88 electricity union IEC227(1979) and jcs258c-1986; The product is suitable for low voltage power supply, protection and measuring line of ac rated voltage 450/750v and 600/1000v and below. Especially suitable for power plants and substation control lines of 500KV or below. Use plastic insulation special shielding control cable can be external electricity, magnetic field.
3、低传输阻抗，电磁兼容性好。4、低工作电容。5、良好的抗干扰和低辐射性能。6、对称的三芯电缆结构设计，具有比四芯电缆更好的传输性能。7、具有较强的耐电压冲击性，能经受高速、频繁变频时的脉冲电压。8、具有良好的屏蔽性能，可降低变频器输出中存在的高次揩波的不良影响。
弱电信号线|线|铠装线；电信局专用线；通信电缆-HYA电缆|HYA23电缆|HYA22电缆|HYA53电缆|室外线HYA53HYA53钢塑复合带铠装通信电缆;HYA|地面通信电缆|地面通信线缆,直埋市话线.AVVR型300/300V铜芯聚氯乙烯绝AVVR聚氯乙烯软护套线缘聚氯乙烯护套。
二、执行标准 SPTL/－03三、使用特性 1.电缆导体的长期允许工作温度应不超过65℃，敷设环境温度应不低于0℃。2.电缆敷设安装允许弯曲半径非铠装电缆应不小于电缆外径的10倍；铠装电缆应不小于电缆外径的15倍。
五、带钢丝绳PVC行车控制电缆又叫带钢丝绳的PVC行车控制电缆，行车控制电缆，带钢丝绳电缆-带钢丝绳的电缆，电动葫芦电缆，电动葫芦专用电缆，带钢丝绳的行车控制电缆，带钢丝的行车控制电缆，带钢丝绳电缆，行车电缆，行车手柄线，天车手柄线，电动葫芦手柄线。
在plc编程中，只要涉及到数据采集和输出，都会遇到模拟量的线性变换。在西门子300plc编程中，系统自带的两个线性变换功能块FC105和FC106是最常用的两个数据转换模块。但是在博图中，模拟量的线性转换跟300PLC有一定的差异，本文详细介绍1200,1500中模拟量的线性转换问题。线性变换原理线性变换原理公式线性变换的原理很简单，比如说，在工程测量中，常会遇到4-20mA的传感器，如压力传感器或位移传感器等，要转换为0-50MPa的物理量。
RVVP is a kind of soft PVC insulated wire conductor and shield cable and PVC sheathed. Copper core PVC insulated shield PVC sheathed flexible cable voltage 300 v / 300 v 2-24 core purpose: installation of instruments, meters, intercom, monitoring, control scope of application: suitable for ac rated voltage up to and including 300/300 electronics, instruments and electronic e and automation devices such as shielding line executive standard s s GB5023.5 JB8734.5-1998-85 using feature s rated voltage: 300/300 v s rated temperature: AVP - 90, RVP - 90 type 900 C, the other shows characteristics of model 700 C s conductor: many strands of bare copper wire or tinned copper wires twisted s shielding ways: woven or inclined round (customer re) s conductor some conclusions: 1-24 core s insulation, RVP: (1) the AVP - 90-90: PVC/E PVC insulated (2) the AVP: PVC/C type PVC insulated (3) the rest of the models: PVC/D type PVC insulated s stranded: insulated conductor cable with filling (if any).
Such a cable structure features: type manufacuring HYA communication cable chromatography used in high-density polyethylene polythene insulation, lu: su composite sheath (namely cable is applied to longitudinally wrap shielding ribbon and sheath bonded into an organic whole, forming sealing protection layer), has a superior electrical properties, the characteristics of the construction is convenient. Such a cable main electrical properties: 1. The dc resistance: 20 ℃, 0.4 148 or less? / km 0.5 95.0 or less? / km 0.6 65.8 or less? / km 0.8 36.6 or less? / km2. Insulated electrical strength: 1 min 1 kv no breakdown between the conductor and conductor shielding 1 min 3 kv is not breakdown (3) insulation resistance: each conductor and the rest of the grounding wire core, inflatable cable is more than 10000 m Ω. Km, filling type cable is more than 3000 m Ω. Km. 4. Working capacitance: average value: 52 + / -2nf /km5
也可提供双层护套的通信电缆。MHYV（PUYV）（1×21×42×23×24×25×26×28×210×2）1/1.0、1/1.38聚乙烯绝缘聚氯乙烯护套煤矿用通信电缆用于矿场作普通信号传输，适用于固定敷设。
This is the flame retardant standard for bundles of cables. According to the test regulations, the 3.5m long cable samples are fixed with iron wire on the trapezoid test frame, and the number of samples is determined according to the different classification re of non-metallic materials. The sample is hung vertically on the back wall of the furnace, and air is introduced into the furnace through the inlet on the bottom plate.