兴城ZCN电缆凤眼

兴城ZCN电缆凤眼

Flame-retardant cable classification: according to the different flame-retardant materials of cables, flame-retardant cables are divided into halogen flame-retardant cables and halogen-free low-smoke flame-retardant cables. Which contain halogen flame retardant cable insulation, sheath, outer sheath and auxiliary material (package belt and filling) in whole or in part by polyethylene (PVC) containing halogen flame retardant material, thus has good flame retardant properties. However, when the cable burns, a large amount of smoke and haloic acid gas will be released. Haloic acid gas is corrosive to the surrounding electrical equipment. When the cable burns, it will cause harm to the surrounding electrical equipment and rescue personnel, which is not conducive to the fire fighting and rescue work, thus causing serious "secondary hazards". All or part of the insulation layer, protective sleeve, outer protective layer and auxiliary materials (packing belt and filling) of the halogen-free low-smoke flame-retardant cable are adopted
　　MKVV(2-14)*(4-6)mm2 ,(2-10)*10mm2 (2-61)*(0.75-2.5)mm2 MKVV*(0.75-1.5)mm2 (4-61)*2.5mm2 (4-14)*(4-6)mm2 MKVVP(7-61)*(0.75-1.5)mm2 (4-61)*2.5mm2 (4-14)。

　　IA-DJVVP2IA-DJYVP2IA-DJYJVP2本安型、铜塑复合膜总屏蔽。IA-DJVVP3IA-DJYVP3IA-DJYJVP3本安型、铝塑复合膜总屏蔽。IA-DJVPVPIA-DJYPVPIA-DJYJPVP本安型、编织分对屏蔽、总屏蔽（铜丝或镀锡丝）。

　　■常规型号：常用型号为24AWG，26AWG，有1线对、2线对、3线对、4线对，特殊要求可定做导体有0.2mm2、0.5mm2、0.75mm2集散型仪表信号电缆为计算机控制电缆的升级换代产品，用于电子计算机为主的自动控制系统。



Power cable installation considerations, characteristics and operation condition 1, power cable installation considerations for cable laying parallel with heat pipe installation to keep a distance of 2 m, when crossing, should keep 0.5 m. The cable shall be installed at a distance of 0.5m in parallel or across other pipelines. When the cable is directly buried and installed, the direct buried depth of 1-35kv cable is less than 0.7m. When 10KV and below cables are installed in parallel, the net distance between them shall not be less than 0.1m and 10-35kv shall not be less than 0.25m. The distance of cross installation is not less than 0.5m. Cable laying temperature lower than 0 ℃, bending radius: multi-core cable or 15 (D + D), a single cable 20 or more (D + D), (D for cable diameter, D) for the conductor diameter.

对于控制变频器，启停使用硬接线图三典型变频器的MODBUS控制如图三所示，只是一个变频器的控制电路，图中红色圆圈部分，是用硬接线控制启停，黄色荧光笔部分，使用MODBUS通信写入频率，读取实际频率和电流。如果完全使用MODBUS通信，启停部分就使用一个通信字，而且一旦通信死掉，变频器就处于失控状态，这是很危险的。而使用硬接线控制启停，无论任何情况下，都能确保变频器可以安全可靠的停下4.波特率波特率越高，通信速率越快，但是稳定性降低，很容易受到干扰。

　　自承式电缆识别和长度标记：电缆外表面有性识别标记，标记间隔不大于1m，标记内容有：导线直径、线对数量、电缆型号、制造厂厂名代号及制造年份，长度标记以间隔不大于1m标记在外表面上。同时我公司生产全塑市内通信电缆，电话电缆，大对数通信电缆，计算机电缆，通信设备电源线，铁路信号电缆，机场用照明线，各种证件齐全，质量可靠。

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.
RS485 bus due to its wiring is simple, stable and reliable and widely used in video surveillance, access control intercom, building alarm and other fields, however, because there are a lot of in the process of 485 bus wiring is not completely accurate concept leads to many problems. Some wrong ideas will now be clarified.

　　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，耐塞护套为-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。产品介绍：一：产品特点及用途本产品适用于交流U0/U为300/500V电力、冶金、石化等行业以电子计算机为主的自动控制系统、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电子计算机电缆。



　　 煤矿用聚氯乙稀绝缘和护套阻燃控制电缆天津市电缆厂MKVVMKVV22MKVV32MKVVRMKVVRPMKVV（2-61芯）MKVV芯） MKVVR （2-61芯）MKVV芯） MKVVP （2-61芯）煤矿用阻燃屏蔽通信电缆MHYVP一、产品用途及特点本产品适用于矿山、井下环境监控系统中传输通信。

Main product models: HYA, HYAC, HYAT, HYAT53, HYA53; 1. Inner conductor line diameter (mm) of HYA (pipeline/overhead) : 0.40, 0.50, 0.60, 0.70, 0.80, 0.90 logarithms (yes) : 5-3000; 2. Inner conductor line diameter (mm) of HYAC (overhead) : 0.40, 0.50, 0.60, 0.63, 0.70, 0.80, 0.90 logarithms (yes) : 10-300; 3. Inner conductor line diameter (mm) of HYAT (waterproof) : 0.40, 0.50, 0.60, 0.63, 0.70, 0.80, 0.90 logarithms (yes) : 10-1600; 4. Inner conductor line diameter (mm) of HYA53/HYAT53 (anti-rat bite/direct embedding) : 0.40, 0.50, 0.60, 0.70, 0.80, 0.90 logarithms (right) : HYA5310 -- 2400 HYAT53 10-6.

SPD是电子设备雷电防护中不可缺少的一种装置，其作用是把窜入电力线、信号传输线的瞬时过电压限制在设备或系统所能承受的电压范围内，或将强大的雷电流泄流入地，保护被保护的设备或系统不受冲击。浪涌保护器的类型和结构按不同的用途有所不同，但它至少应包含一个非线性电压限制元件。用于浪涌保护器的基本元器件有：放电间隙、充气放电管、压敏电阻、抑制二极管和扼流线圈等。按其工作原理分类，SPD可以分为电压开关型、限压型及组合型。

　　本规范以YD/T标准为准。概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，涂塑铝带屏蔽层及上面印有按计数顺序表示的长度标志的黑色外扩套后方能完成。



　　敷设方式：架空/管道/直埋ZRC-HYAT10x2x0.4WDZ-HYAT10x2x0.4ZR-HYAT10x2x0.4MHYAT10x2x0.4ZRC-HYAT20x2x0.4WDZ-HYAT20x2x0.4ZR-HYAT20x2x0.4MHYAT20x2x0.4ZRC-HYAT30x。