海城4X25+1X16平方线缆凛冽

海城4X25+1X16平方线缆凛冽

　　2、产品标准：GB5023、3-85《额定电压450/750V及以下聚氯乙烯绝缘电缆（电线）连接用软电线》3、使用特征：1）U0/U为450/750V、300/500V和300/300V。煤矿用控制电缆使用特性：电缆导体的长期允许工作温度为70℃，电缆敷设温度应不低于0℃。
　　适用于交流额定电压0.6/1KV及以下的行车、台车、传输机械等移动电器用动力传输线及控制、照明、通讯线路，本产品已广泛应用于冶金、电力、船舶、港口等行业。适用于交流额电压450/750V及以下的行车、台车、传输机械等移动电器用动力传输线及控制、照明通讯线路，本产品已广泛应用于冶金、电力、船舶、港口等行业。

　　一、产品执行标准:企业标准Q/TY二、低烟无卤电缆的说明低烟无卤电缆可分为低烟无卤阻燃系列和低烟无卤耐火系列。低烟无卤电缆是本公司参照法国标准RCCE及NF系列标准、国家标准GB/T18380、GB/T19216、GB/T17651、GB/T17650及进行生产。

　　100对及以上线对的电缆加有1％的预备线对，但多不超过6对。缆芯内的间隙用石油膏填充。缆芯包带：用聚脂薄膜带绕包。屏蔽：用轧纹(或不轧纹)金属带，金属带纵包于缆芯包带之外。护套：黑色低密度聚乙烯。也可提供双层护套的电缆。



　　HYAT23铜芯实芯聚乙烯绝缘石油膏填充双面涂塑铝带屏蔽镀锌钢带铠装聚乙烯护套通信电缆。HAVP扩音对讲电缆;扩音系统专用电缆HAVP2X32X0.15+2X48X0.2，火灾报警系统专用电缆HAVP2X32X0.15+2X48X0.2。

从而控制外部两条独立的收发信号线RXD(P3.0)、TXD(P3.1)，同时发送、接收数据，实现全双工。串行口控制寄存器SCON(见表1)。表1SCON寄存器表中各位(从左至右为从高位到低位)含义如下。SM0和SM1：串行口工作方式控制位，其定义如表2所示。表2串行口工作方式控制位其中，fOSC为单片机的时钟频率;波特率指串行口每秒钟发送(或接收)的位数。SM2：多机通信控制位。该仅用于方式2和方式3的多机通信。

　　HYA铜芯实心聚烯烃绝缘铝塑粘结综合护套市内通信电缆管道。HYAC铜芯实心聚烯烃绝缘铝塑粘结综合护套自承式市内通信电缆架空。HYAT铜芯实心聚烯烃绝缘填充式铝塑粘结综合护套市内通信电缆管道。HYA53铜芯实心聚烯烃绝缘铝塑粘结综合护套单层皱纹钢带纵包铠装聚乙稀护套市内通信电缆直埋。

Computer shielded cable; Purpose: high voltage insulation with small interface constant. Use to ground, and the screen, the total screen (or three quad twisted, group screening, group screen a total screen), such as structure form, with a small dielectric loss, the transmission ability is strong, resistant performance is good wait for a characteristic, can reliable transmission weak analog or digital, can be widely used in electricity, metallurgy, petroleum, chemical, textile sites detection and control of the door or by computer automation instrumentation, and general industrial computer. Relevant technical indicators: reference BS5308 IEC189 and British second, product code 1 and code the DJ - (series code) electronic computer shielded cable Y - (insulation code) high-pressure polyethylene F - (insulation code) fluoroplastic V - (sheath code) polyvinyl chloride (R - said many strands of soft wire core P - (block code) copper mesh shielding P1 tin plated copper mesh shielding P2 copper tape screened P3 aluminum-plastic composite membrane shielding for example 1:3, product specifications order 7 (14) to 1.0 was computer shielded cable can be represented as: (1) total shielding DJYVP7 * 2 * 1.0mm2 (2) partial shielding multiple strands of soft line DJYPVR7 * 2 * 1.0mm2 (3) total shielding type DJYPVP7 * 2 * 1.0mm2 Type (1) packet shielding DJYPV3 x 3 x 0.75 was (group 2) screen a total screen DJYPVP3 x 3 x 0.75 was three, model name and use range model name using range DJYVPDJYPVDJYPVP total shielding polyvinyl chloride polyethylene insulating sheath computer cable shielding polyvinyl chloride polyethylene insulation group sheathed electronic computer cable shielding total shielding polyvinyl chloride polyethylene insulation group sheathed electronic computer cable 1, fixed for laying indoors, in cable trench or pipe 2, cable long-term working temperature: - 20 ℃ + 65 ℃, the cable laying temperature is lower than 0 ℃, the bending radius should not less than 10 times of cable diameter DJYVPR DJYPVR DJYPVRP total shielding polyvinyl chloride polyethylene insulating sheath computer with a soft cable shielding polyvinyl chloride polyethylene insulation group sheathed computer with a soft cable shielding total shielding polyvinyl chloride polyethylene insulation group with a soft cable sheath computers shows that: (1) flame retardant cable (oxygen index greater than 30) need to add code "out" in front of the model. For example, zr-djypv zr-djypvp et al. (2) armored (steel belt armored) cables need to add code "22" in the lower right corner of the model, such as: DJYPV22 djypvpppvp22, etc. The cable is mainly used for ac or dc 300V or below and can work normally when 500V or below.
HYA53 / HYAT53 rat bite/buried HYAT53 directly buried cables: mainly used for the transmission of audio, 15 duct | communication cable | (pipe/overhead) HYAC (overhead) HYAT (waterproof) 0 KHZ and analog signals and 2048 kbit/s and under the following digital signal. Under certain conditions, it can also be used to transmit digital signals over 2048kbit/s. Suitable for overhead or pipeline laying in city, suburb and local area, or directly buried.

　　多年的“计算机电缆R;DJYPVPR22;DJYPVPR32;DJYJPV,DJVPVP,DJYPVP,DJYJPVP电子计算机电缆DJYVPR;D。2.使用特性1额定电压U0/U为300/500V及以下。



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

　　低烟无卤线材配方添加材料：(1)选用线型PE及弹性PE为主要树脂，阻燃材料选用三种含结晶水的金属氧化物：分别为在200℃、300℃、300℃以上失去结晶水。低烟无卤电缆技术发展低烟无卤阻燃线缆料的市场技术现状与发展趋势含卤(特别是溴系)阻燃聚合物体系因其突出的阻燃效果，80年代中期以前在阻燃聚合物市场中占有的统治地位。

CSMA/CD通讯方式CSMA/CD通讯方式是一种随机通讯方式，适用于总线结构的PLC络，总线上各站地位同等，没有主从之分，采用CSMA/CD存取控制方式，即“先听后讲，边讲边听”。CSMA/CD存取控制方式不能保证在一定时间周期内，PLC网络上每个站都可获得总线使用权，因此这是一种不能保证实时性的存取控制方式。但是它采用随机方式，方法简单，而且见缝插针，只要总线空闲就抢着上网，通讯资源利用率高，因而在PLC网络中CSMA/CD通讯法适用于上层生产治理子网。

　　MHYA32(PUYA32)煤矿用聚乙烯绝缘铝/聚乙烯粘结护层镀锌钢丝铠装阻燃聚氯乙烯护套通信电缆/0.81/1.0用于煤矿竖井和斜井作通信线。2.使用特性1额定电压U0/U为300/500V及以下。

It is suitable for the control and control circuit with rated ac voltage u0/u of 450/750v or below and the connecting line of the electrical instrument in the protection line and the distribution device. Implementation standards: mt818-2009.1 mt386-1995 Q/ tx001-2006 strictly comply with relevant regulations on coal mine safety.