射频线缆SYV75-9每公里格石柱格优惠铠装网线UTP-5E4X2X0.5春笋

射频线缆SYV75-9每公里格石柱格优惠铠装网线UTP-5E4X2X0.5春笋

Main technical performance and indexes of signal cable for mining: 20 ℃ when the conductor dc resistance Ω / 7/0.28 7/0.28 or less 45 km (3 steel 4 copper) 73 1/0.8 or less or less natural attenuation (800 ~ 1000 hz) 36.7 dB/km acuities were 1.1, 1.3, 0.95 or less 20 ℃ or less insulation resistance of cable insulation wire core M Ω. Km 3000 line of work or capacitance (800 ~ 1000 hz) uF/km 0.06 or less near end crosstalk attenuation (800 ~ 1000 hz) dB / 500 M or 70 inductor (800 ~ 1000 hz) UH /km is less than or equal to 800. The ac power frequency voltage is 1.5KV/1min. The dc resistance difference is less than or equal to 2% of the loop resistance



　　可以采用任何一种方式敷设，更适用于岩石地区的直埋敷设。HYA53、HYA553型号电缆只限于特殊情况下使用,使用时必须进行气压维护。有阻燃。在一定条件下，也可用于传输2048kbit/s以上的数字信号。

The marking contents of armored communication cables include: wire diameter, number of wire pairs, cable model, length, manufacturer name and year of manufacture.

　　自承式全塑电缆（HYAC）：自承式全塑电缆有同心式结构和葫芦型结构两种，常用的HYAC型自承式全塑电缆为葫芦型结构。导线：退火裸铜线，直径为、0.4、0.5、0.6、0.7、0.8、0.9；按照全色谱标准标明绝缘线的颜色。



　　4.成缆时把四根线芯排列为红，绿，蓝，白，排流线，排流线要和线芯一起绞合，千万不要纵放，成缆时不要加填充物，缆芯外用铝箔绕包，而后再绕包一层聚酯膜，在外有一层铜丝编织屏蔽（屏蔽铜丝不镀锡）。5.护套：护前直径是8.2毫米，护后直径12毫米（11.7--12毫米之间），护套为阻燃蓝色护套。

三菱plc型号的命名方法如下：系列名称FX1S，FX1N，FX2N，FX3U，FX3G，FX1NC，FX2NC，FX3UC输入、输出合计点数8，16，32，48，64等单元区分M：基本单元，E：输人输出混合扩展设备EX：输入扩展模块，EY：输出扩展模块输出形式R：继电器，S：双向晶间管，T：品体管连接形式T：FXNc的端子排方式，LT（一2）：内置FXuc的，CC－Ink／LT主站功能电源、输出方式无：AC电源，漏型输出，E：AC电源，漏型输入、漏型输出ES：AC电源，漏型／源型输入，漏型／源型输出ESS：AC电源，漏型／源型输入，源型输出（仅晶体管输出）UA1；AC电源，AC输入，D：DC电源，漏型输人、漏型输出DS：DC电源，漏型／源型输入，漏型输出DSS：DC电源，漏型／源型输入，源型输UL规格无：不符合的产品UL：符合UL规格的产品说明：特殊品种一项无符号，说明通常指AC电源，DC电源，横式端子排，继电器输出2A点，晶体管输出0.5A点，晶闸管输出0.5A点。

　　HYAC：铜芯实心聚烯烃绝缘自承式挡潮层聚乙烯护套市内通信电缆。HYA53：铜芯实心聚烯烃绝缘挡潮层聚乙烯护套钢塑带铠装聚乙烯护套市内通信电缆。HYAT53：铜芯实心聚烯烃绝缘填充式挡潮层聚乙烯护套钢塑带铠装聚乙烯护套市内通信电缆。

DJYP2VP2R
Flame retardant performance: under specified test conditions, specimen was burning, after removed test of ignition, flame spread only in a limited range, residual flame or residual burning characteristics of self extinguishing reaction in the limited time.

The cross section of the control cable is generally no more than 10 square meters, and the power cable is mainly used to transport power, which is generally large. Due to the above all when it comes to the reason, the specifications of the power cable can generally larger, to 500 square feet (normal manufacturer can produce range), again big cross section of the general factory is relatively less, you can do and control cable section generally small, generally not more than 10 largest square, tell from some cable, power cable according to the request of power grid, most commonly for five core, and control cable transmission control signal, some more, according to the standard terms of more than 61 core, but also can produce according to user re



　　因此，耐火系列电力电缆的整体性能优良可靠。防火电缆的阻水性能符合IEC502-2规定。VV32VLV32VV33VLV33VV42VLV42VV43VLV43聚氯乙烯绝缘聚氯乙烯/聚乙烯护套钢丝铠装电力电缆敷设在高落差地区，电缆能承受机械外力作用及相当的拉力。

　　KFF,KFFP,KFF22,XKFF,XKFFP,XKFFP22氟塑料绝缘氟塑料护套耐高温控制电缆KFF,KFFP,KFF22,XKFF,XKFFP,XKFFP22使用条件：1、环境温度-60～275℃；2、额定电压U。

如何选择单相电机的运行电容和启动电容？答；本人根据长期接触双值单相电机的经验单相双值电机运行电容器的选配公式：C＝1100×I/U×cosφ式中的1100为经验公式的一个系数；I为电机额定电流，U为电源电压；cosφ为电机的功率因数为（0.7～0.8间，一般取0.75为宜）单相电动机电流计算公式为：P=IUcosφ。P：为单相电动机功率；I：为电动机电流，一般为所求；U：为电动机电压，一般为220V；cosφ：为电动机功率因数，一般取0.75，如有具体数据根据实际。

　　聚氯控制电缆：KVV：聚氯乙烯绝缘聚氯乙烯护套控制电缆KVVP：聚氯乙烯绝缘聚氯乙烯护套编织屏蔽控制电缆KVVP2：聚氯乙烯绝缘聚氯乙烯护套铜带屏蔽控制电缆KVV22：聚氯乙烯绝缘聚氯乙烯护套钢带铠装控制电缆KVV32：聚氯乙烯绝缘聚氯乙烯护套细钢丝铠装铠装控制电缆KVVR：聚氯乙烯绝缘聚氯乙烯护套。



Main transmission cable MHYVP 2 * 2 * 2 * 7/0.52 performance: 1. + 20 ℃ dc resistance wire 7/0.28 or less 45 Ω 1/0.8 / Km 36.7 or less Ω/Km, 2. + 20 ℃ wire insulation resistance 3000 M or more Ω. Km3. The line capacitance (800 ~ 1000 hz) to work or less 0.06 uF/km4. The far end crosstalk attenuation (800 ~ 1000 hz) or 70 dB/km5. Inductance (800 ~ 1000 hz) 800 or less mH/km6 resistance ac power frequency voltage 1.5 KV / 403 to the characteristics of the main transmission cables MHYVP 2 x 2 x 7/0.52 by: Mhy MT818.14-1999 1/0.8 (20 30 x 2 x 2 x 2) 50 x 0.8 coal mine with insulating aluminum bonding layer of PVC sheathed communication cable used in deviated well and drift MHYV (1 1 x 2 x 2 x 2, 4, 5 x 2) x 7/0.28 coal mine by polyethylene insulated PVC sheathed communication cable for mine roadway inclined lane and electromechanical cavern MHJYV 4/0.28 wire + 3/0.28 steel wire 1 2 x 2 x 2 coal mine with strengthening core polyethylene insulated PVC sheathed mining communications cables used for mechanical damage is higher level and inclined lane MHYA32 (30 x 2, 50 x 2, 80 x 2) x 402 coal mine e introduction mining communication cable: purpose: this product is used for underground telephone communication welding line, distribution line and user line. Conditions of use: cable temperature - 40 ℃ ~ + 50; At 25 ℃ when the humidity is 95%; Cable laying temperature - 10 ℃ or higher; The bending radius of MHYV for cable laying is 10 or greater

　　。使用特性●工频额定电压U0/U为380/660V、660/1140V、1.9/3.3kv、3.6/6kv、6/10KV、8.7/10KV。●电缆导体的高允许工作温度：65℃90℃●电缆允许低的工作环境温度为-35℃●电缆弯曲半径：不大于电缆外径的6倍。

　　三：使用特性使用特性聚氯乙烯绝缘额定电压0.6/1导体高工作温度70℃短路温度(持续长5s)≤160℃敷设时环境温度≥0℃(低于0℃需预热)敷设时允许弯曲半径单芯电缆不小于电缆外径15倍多芯电缆不小于电缆外径10倍阻燃特性符合GB12666.5A或B(IEC332-3)四：基。