
KVVR铜芯聚氯乙烯绝缘聚氯乙烯护套控制软电缆450/7504-370.75-10敷设在室内,有移动要求的场合。
KVVRP铜芯聚氯乙烯绝缘聚氯乙烯护套编织屏蔽450/7504-370.75-10敷设在室内,有移动屏蔽要求的场合。
ZR-FV、ZR-KFF、KFFP、KFFP2、FV22 KFFR、KFFRP、KFFRP2、DJFPFP、DJFPFPR具体的型号有:ZR-KHF4、ZR-KHF4R、ZR-KHF4P、ZR-KHF4RP、KHF4、KHF4R、KHF4PR、KHF4P、KHF4RP、ZRC-KHF4、ZR-K。
TRVV flexible cable for connection and control, widely used in dry or damp indoor, reciprocating freely bending and moving the chain system without forced tension. Such as machine tool processing equipment, logistics delivery system, port machinery, complete equipment installation engineering. Product features: according to customer requirements, color core or coding core. High quality PVC mix is adopted to reduce the requirement of cable outer diameter for installation space. The designed cycle bending life is 5 million times, and the actual use has exceeded 6 million times. Cable structure: conductor: using multi-strand fine ground and other fine twisted into a bundle conductor oxygen-free copper wire, conform to DIN VDE 0295 grade 6 insulation: high quality PVC mixture color: color line core or coding line core 3 core + yellow or green conductor sheathed: high quality PVC mixture color: black, grey, orange electrical characteristics: rated voltage U0 / U < 0.5 was 300/300 V p o. 5 was 300/500 V test voltage: 3000 V U meet DIN VDE 0281 part 2 temperature range: ℃ mobile installation: fixed installation: - 5 ℃ ~ + 70 ℃ and 30 ℃ ~ + 70 ℃ when continuous movement, the minimum bending radius: 7.5 x cable diameter
Product model: manufacuring HYA HYAC HYAT HYY HYV HYY23 HYV23 HYYT23 HYA23 HYAT23 HYATC main products: inflatable cable, messenger overhead cables, oil-filled cable, filling type cable, shielded cable, not shielded cable manufacuring HYA cable _ inflatable cable related products manufacuring HYA cable _ inflatable cable manufacuring HYA HYAC HYA23 armoured communication cable HYV22 HYA53 HYV22 HYA23 HJVV HYA23 HYA53 telephone cable Messenger cable HJVV _HYYC HYAC HYYC HYACHYYC messenger HYYC multi-cores cable indoor communication cable HYV HYV22HYA23_ZR HYA23_WDZ - manufacuring HYA armoured communication cable HYA23_ZR HYA23_WDZ - manufacuring HYA armoured communication cable ZRC HYA23ZRC - HYAT23_ armoured communication cable ZRC HYAT23 telephone cable - manufacuring HYA HYAC HYVHYA communication cable manufacuring HYA HYAT HYAC HYV HYV23 line.

产品型号:WDZ-RYYP低烟无卤多芯屏蔽电缆电缆结构:导体:无氧裸铜丝绝缘:低烟无卤环保型屏蔽:铜丝或镀锡铜丝编织屏蔽护套:低烟无卤环保型颜色:黑色(RAL9005)灰色(RAL7001)工作电压:450/750V测试电压:<0.5mm²:2000V≥0.5mm?:2500V使用温度范围:-20℃。
中断程序不是由程序调用,而是在中断事件发生时由操作系统调用。
因为不能预知系统何时调用中断程序,故它不能改写其他程序使用的存储器,应在中断程序中使用局部变量。
在中断程序中可以调用一级子程序,累加器和逻辑堆栈在中断程序和被调用的子程序中是公用的。
可采用下列方法创建中断程序:在“编辑”菜单中选择“插入”“中断”,在程序编辑器视窗中单击鼠标右键,从弹出菜单中选择“插入”“中断”;用鼠标右键单击指令树上的“程序块”图标,并从弹出菜单中选择“插入”“中断”。
使用条件(1)额定电压U0/U为450/750V;(2)电缆导体的长期允许工作为70℃;(3)电缆的敷设温度应不低于0℃,推荐的允许弯曲半径;(4)无铠装层的电缆,应不小于电缆外径的6倍;(5)有铠装或铜带屏蔽结构的电缆,应不小于电缆外径的12倍;(6)有屏蔽层结构的软电缆,应不小于电缆的6倍。
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
主要产品:矿用通信电缆,矿用控制电缆,计算机电缆,铁路信号电缆,电源电缆,电话电缆,铠装通信电缆,矿用通讯电缆,矿用信号电缆,软芯屏蔽控制电缆,矿用电话电缆1产品名称:矿用电话电缆.2执行标准:MT818.3、用途:本产品用于井下作电话通信焊线、配线和用户线路。
ZR-BPGGPP2硅橡胶绝缘和护套铜丝编织铜带绕包屏蔽耐高温变频电力电缆。
ZR-BPGGP3硅橡胶绝缘和护套铝聚酯复合膜绕包屏蔽耐高温变频电力电缆。
ZR-BPGVFP硅橡胶绝缘丁腈护套铜丝编织屏蔽耐高温变频电力电缆。

一般采用的方法就是在护套材料中添加含有卤素的卤化物和金属氧化物,从阻燃的角度来评价,这是极好的方法,由于这些材料中含有卤化物,在燃烧时释放大量的烟雾和卤化氢气体,火灾时的能见度低,给人员的安全疏散和消防带来很大的妨碍,而人则更多地为有毒气体窒息致死。
三、使用特性 1、电缆长期工作温度:-30~60℃ 2、电缆敷设温度: 不低于0℃3、MHYV型弯曲半径不小于电缆直径的10倍。
MHYBV型弯曲半径不小于电缆直径的10倍。
MHYVP型弯曲半径不小于电缆直径的10倍。
”又是一起外包作业人员触电事故。
该起事故和几年前的“金陵事故(运行人员恶性误操作事故致人死亡事故)”如出一辙:“20XX年5月1日,金陵某电厂在6KV厂用系统倒闸操作时,监护人员(由于柜内带电,电磁锁闭锁,柜门无法打开)采用检修班组保存的解锁钥匙冒险打开了柜门。
在未经验电,即开始挂设接地线,发生电弧短路,造成现场的两名电厂运行人员电弧烧伤,其中一人经医治无效于5月2日死亡。
”近年来,联络开关间隔(带电)检修、母联开关(带电)检修,又是未全部停电作业,又是外包,又是工期等问题,种种不利因素交织,极易酿成事故。
型号名称主要使用场所 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。
性阻抗为100Ω的双绞屏蔽电缆STP-100Ω(forFF&PROFIBUS-PA)onepair18AWG则应用于FF、PROFIBUS-PA总线,常用18AWG导体。
485总线由于其布线简单,稳定可靠从而广泛的应用于视频监控,门禁对讲,楼宇报警等各个领域中,在485总线布线过程中由于有很多不完全准确的概念导致出现很多问题。