****YJV电力电缆宜章按需定制MHYVRP1X7X12/0.15线缆格=慧眼
IA-DJVP3VP3RIA-DJYP3VP3RIA-DJYJP3VP3R本安型、本安型、铝塑复合膜分对屏蔽、总屏蔽软结构。IA-DJVPV22IA-DJYPV22IA-DJYJPV22本安型、编织分对屏蔽(铜丝或镀锡丝)、铠装。
销售生产各类煤矿用阻燃通信电缆、矿用通讯电缆,矿用信号电缆,煤矿用阻燃信号电缆、矿用阻燃控制电缆,煤矿用阻燃通讯电缆、矿用电缆、矿用通信电缆、矿用信号电缆、矿用通讯电缆、矿用通信电缆,矿用控制电缆,矿用监控电缆、传感器电缆、信号电缆、本安防爆电缆、控制电缆、计算机电缆、阻燃电缆、耐火电缆,市内通信电。
In manufacuring HYA communication cable, mine cable, mine communication cable, mine, mine communication cable, signal cable, mining control cable, cable for mine monitoring, mine monitoring cable, mine remote sensing cable, control cable, computer cable, flame retardant cable, fire-resistant cable, communication cable in the city, railway signal cable, communications e such as the power cord, communication cable in the city the main products are: Manufacuring HYA, HYAT, HYAC HYA22 HYA23, HYAT23, HYA53, HYAT53, ZRC - manufacuring HYA, ZRC - HYAT, WDZ - manufacuring HYA, ZRC - HYA23 series, such as product model complete specifications, has passed the holding center communication e network access license, constant standard symbol system certification, sold throughout the country telecommunications company, also become several communications e accessories, agreement is well received by customers and trust!
我国国家标准GB12666.6(等同IEC331)将耐火试验分A、B两种级别,A级火焰温度950~1000℃,持续供火时间90min,B级火焰温度750~800℃,持续供火时间90min,整个试验期间,试样应承受产品规定的额定电压值。
ZR-kJYP3V-ia(ZR-KJYP3V22-ia)本安电路用聚乙稀绝缘铝塑复合带绕包对绞屏蔽(钢带铠装)聚氯乙稀护套控制电缆ZR-kJYPVP-ia(ZR-KJYP3VP-ia)本安电路用聚乙稀绝缘铜丝编织(铝塑复合带绕包)对绞屏蔽铜丝编织总屏蔽聚氯乙稀护套控制电缆2、规格型号对数。
信号输入引脚:作用是将输入信号引入集成电路。具有一个信号输入引脚的集成电路一般在引脚旁标注“IN”字符。如果具有同相和反相两个输入引脚,则在引脚旁分别标注有“+”“-”字符,如下图:集成电路输入引脚的外电路特征是,通过一个耦合元件与前级电路的输出端相连接。这个耦合元件可以是耦合电容C,或者是耦合电阻R,或者是RC耦合电路,或者是耦合变压器T等。有些集成电路具有多输入信号引脚。如下图:振荡器、函数发生器等信号源类集成电路一般没有信号输入引脚。
DJYPV聚乙烯绝缘对绞铜线编织分屏蔽聚氯乙烯护套计算机电缆敷设室内、电缆沟、管道等要求静电屏蔽场合 DJYVP聚乙烯绝缘对绞铜线编织总屏蔽聚氯乙烯护套计算机电缆敷设室内、电缆沟、管道等要求静电屏蔽场合 DJYPVP聚乙烯绝缘对绞铜线编织分屏蔽及总屏蔽聚氯乙烯护套计算机电缆敷设室内、电缆沟、管道。
生产规格:对数5对—3600对导体直径为:0.4、0.5、0.6、0.7、0.8(mm)电缆对数型号(0.4)型号(0.5)型号(0.6)5对HYA5x2x0.4HYA5x2x0.5HYA5x2x0.610对HYA10x2x0.4HYA10x2x0.5HYA10x2x0.620对。
煤矿用阻燃通信电缆一、执行标准:MT818.14—1999和《煤矿用阻燃通信电缆检验细则》二、产品命名代号煤矿用阻燃通信电缆…………………………………MH聚乙烯绝缘……………………………………………Y铜质线芯………………………………………………省落铝—聚乙烯粘结护层…………………………………A聚乙烯。
Local cable USES manufacuring HYA, HYAT, HYAC, HYPAT, HYPA and HYA53 HYAT53, HYPA53 HYPAT53 type cable is designed for main telephone switching area, relay telephone cable, manufacuring HYA, HYAT, HYPA and HYPAT is mainly used for pipe laying, also can be used for overhead, but need to disconnect; HYAC only applies to overhead, no need for suspension lines or hooks; The HYA53, HYPA53, and HYPAT53 cables provide the mechanical strength and corrosion resistance of the cables. They can be laid in any way, which is more suitable for direct burial in rock areas. The operating temperature is -30 ~60 degrees.
本公司生产的耐火型动力电缆为额定电压0.6/1KV铜芯电缆,还可以生产低烟无卤耐火动力电缆、高阻燃隔氧层耐火动力电缆,其耐火性能符合GB/T12666.6《电线电缆耐火特性试验方法》。因此,耐火系列动力电缆的整体性能优良可靠。
DJYVPDJYPVDJYPVP聚乙烯绝缘总屏蔽聚氯乙烯护套电子计算机用电缆聚乙烯绝缘组屏蔽聚氯乙烯护套电子计算机用电缆聚乙烯绝缘组屏蔽总屏蔽聚氯乙烯护套电子计算机用电缆1、固定敷设在室内、电缆沟或管道内。
使用外加电阻的驱动:步进电机的绕组使用粗导线时,线圈电阻Rw值很小,如下图所示。在各相线圈中,串联外部电阻R,为的是限制绕组流过的电流小于额定电流I。限制绕组流过电流的方法,可采用降低电源电压和串联外部电阻R的两种方法。假设步进电机的线圈电感为L,绕组电阻为Rw电气时间常数为τ,外加电阻R时,电气时间常数公式如下:外加电阻使时间常数τ变小,电流上升比较快,从而使步进电机的驱动脉冲频率变快,上图所示为无外部电阻与带外部电阻R的电流上升曲线的比较,t1时刻,没有电阻R时,电流只上升到I1,有电阻R时,电流上升到I2,使高速时的转矩得到很大的改善;缺点是铜耗增大。
Railway cables are suitable for transmission under rated voltage ac 500V or dc 1000V and below. Product name, model, specification and scope: plastic insulation and polyurethane sheath railway 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 communication, fire alarm, telegraph and other automatic devices with rated voltage ac 500V or dc 1000V or below. Poly (PVC insulation composite sheath steel tape armoured polyvinyl chloride sheathed 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 transfer audio and fixed laying railway and group control automation assembly line, can transport railway group general automatic letter, also can transmit the audio frequency shift automatic block and business calls. ? 4, using features: cable in - use under 40 ℃ to + 50 ℃. Cable conductor long-term working temperature shall not exceed 70 ℃. Ordinary sheath of the cable laying under the temperature below 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 difference
1. The cable conductor of long term working temperature should be allowed no more than 70 ℃, in the process of using cable should prevent high temperature radiation or contact; Cable laying ring
Inside the HYAC (overhead) conductor line diameter (mm) : 0.40, 0.50, 0.60, 0.63, 0.70, 0.80, 0.90 logarithms (yes) : 10-300
Theproductissuitableforuseinpowerdistributionlinesorfixedinstallationswithratedpower-freandincluding0.6/1kV.使用特性•工频额定电压U0/U:0.6/1kV。