心烦DJFPF-2耐高温线缆凤阳

心烦DJFPF-2耐高温线缆凤阳

Sheathed control cable insulation resistance: each conductor and the rest of the grounding wire core, control cable is more than 10000 m Ω. Km, more than 3000 m Ω HYAT cable. Km.
　　各规格产品参数表如下： 产品编号产品名称型号规格内导体/mm绝缘直径/mm屏蔽结构护套材料/颜色ALT-5002屏蔽软线（300/300V）RVVP2×0.30（80编）16/0.15(BC)PVCΦ1.71、纵包铝箔2、编织80编（BC）PVC/黑色ALT-5003屏蔽。

Fire - resistant cable is able to maintain a certain period of normal operation under the condition of flame burning, can maintain the integrity of the line. That, when burned, fire-resistant cable less acid gas smoke, fire flame retardant performance is greatly improved, especially when burnt, accompanied by water jet and mechanical blow, cable still can maintain a full operation.

　　一、性能：a、电压等级：600V/1000V b、电缆长期工作温度70℃ c、耐燃标准：GB/T、空气中敷设，周围环境温度30℃ 2、直埋敷设，周围环境温度25℃ 3、单根电缆敷设五、适用范围比较RVVZ-阻燃，软动力电缆，易弯曲，适用于机房配电系统内部连接，也可作移动电缆使用。



　　产品型号、规格：型号标称截面(mm）芯数额定电压(V)执行标准：ZR-BV0.5-1851450/750及以下Q/X*ZR-BVR2.5-701450/750及以下ZR-RV0.5-951450/750及以下ZR-VV1.5-1851-5600/1000ZR-。

FC1用来实现发动机（汽油机或柴油机）的风扇控制，按照控制要求，当发动机启动时，风扇应立即启动；当发动机停止后，风扇应延时关闭。因此FC1需要一个发动机启动信号、一个风扇控制信号和一个延时定时器。定义局部变量声明表。局部变量声明表如表1所示，表中包含3个变量，两个IN变量，1个OUT变量。表1变量声明表2）编辑FC1的控制程序。FC1所实现的控制要求：发动机启动时风扇启动，当发动机再次关闭后，风扇继续运行4s，然后停止。

　　4、型号、名称和使用范围型号名称使用范围铜芯铝芯VVVLV聚氯乙烯绝缘聚氯乙烯护套电力电缆敷设在室内、管道内、隧道内VYVLY聚氯乙烯绝缘聚乙烯护套电力电缆敷设在室内、管道内、管道中VV22VLV22聚氯乙烯绝缘钢带铠装聚氯乙烯护套电力电缆敷设在地下，能承受机械外力作用V。

Flame retardant cables and fireproof cables: the difference between the average person is very easy to confuse the concept of flame retardant cables and fireproof cables, although there are many more flame retardant cable applies to the advantages of chemical enterprise, such as low, low smoke, non-halogen, but in general, fire-resistant cable can replace flame retardant cable, and flame retardant cables can't take place of fire-resistant cable.
　　Ratedpower-fre/U:0.6/1kV.•电缆导体的高允许长期工作温度（PVC/XLPE）:70℃/90℃.siblecontinuousoperatingtemperatureofconductor(PVC/XLPE):70℃/90℃•短路时（长持续时间。

MHYAV (20 30 50) x2x0.8mhya322 implementation standard mt818.14-1999 4, conditions of use cable using the environment temperature - 40 ℃ ~ + 50; At 25 ℃ when the humidity is 95%; Cable laying temperature - 10 ℃ or higher; When laying the cable, the bending radius of MHYV is greater than 10 times of the cable outer diameter, and the other models are greater than 15 times of the cable outer diameter. Model: MHYAV, MHYA32, MHYV, MHYVR, MHYVRP, MHYVP, MHY, MHJY 6, product description: Model name called MHYV coal mine with polyethylene insulated PVC sheathed communication cable MHYVR coal mine with polyethylene insulated PVC sheathed communication soft cable MHYVP coal mine with polyethylene insulation weaving to PVC sheathed communication cable MHYVRP coal mine with polyethylene insulation weaving to PVC sheathed communication soft cable MHYAV coal mine with polyethylene insulation aluminum - polyethylene adhesive armor layer PVC sheathed communication cable MHYA32 coal mine with polyethylene insulation aluminum - polyethylene adhesive armor layer steel wire armoured MHY32 PVC sheathed communication cable Polyethylene insulated steel wire armored PVC sheathed communication cable for coal mine



　　产品采用标准：MT818. 矿用通信电缆规格型号，产品名称及作用MHYV(1×22×21×45×2)×7/0.28煤矿用聚乙烯绝缘聚氯乙烯护套矿用通信电缆用于平巷斜巷及机电硐室 MHJYV4/0.28铜线+3/0.28钢线1×22×2煤矿用加强线芯聚乙烯绝缘聚氯乙烯护套矿用通信电缆用于机械损伤较高平。

　　在使用RS485通讯时，对于特定的传输线路，主机(召测设备)到仪表的485口间的电缆长度与数据信号传输的波特率成反比；这个长度主要受信号的失真以及噪声的影响所影响。理论上RS485的传输距离能达到1200米，但实际应用中传输距离要小于1200米，具体长度受周围的环境影响。

交流SSR多在电流过零时判断，对感性和容性负载，在电流达零并关断时，线电压并不为零。功率因数cosψ越小，这个电压越大，在关断时，这一较大的电压将以较大的上升率加在SSR的输出端。另外，SSR关断时，感性负载上会产生反电势，该反电势同电压一起形成的过电压将加在SSR的输出端。在使用SSR反转电容分相电机和反接未停转的三相电机时，都可能在SSR的输出端产生二倍于线电压的过压效应。dv/dt和过电压是使SSR失效的重要模式，因此要认真对待。

　　JVVP22，JVVP2-22，JVVP3-22，DJYVP22，DJYJVP22，DJVVP22，DJYPV22，DJYJPV22，DJVPV22，DJVPVP22，DJYPVP22，DJYJPVP220.5-1.5mm25-64对（3线组）DJYVP3-22,DJVVP3-22,DJYJVP3-。

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