含苞铠装双绞屏蔽型RS485花垣
Control cables and flame retardant (ZR) for crosslinked polymer insulation 0.6/1kv can be manufactured as re
RVVP、KVVP这类的线材,虽然有屏蔽网,但其PVC绝缘的介质损耗实在让人无法忍受,更难实现高速远距离传输。当高速、远距离通信,或者处于干扰恶劣的工业环境下,选择传输介质就显得十分重。采用阻抗相匹配的RS485电缆有利于降低信号的回波反射;其双绞对称、多重隔离屏蔽等独特的结构,通过正确的接地,提高了信道的抗干扰性能;其高频低衰减的特性,可实现信号长线传输距离最大化。
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1. Computer cable execution: refer to British BS5308 and JCS189. 2, computer control cable USES: this product is suitable for rated voltage up to and including 450/750 or dc 1000 v and below the power generation, metallurgy, petrochemical and other industrial and mining enterprises, distribution, electronic computer, automatic transmission and testing instruments and meters, etc. 3, electronic computer cable type and scope of use: the product model Use JVV specification range, JVVR JYV, JYVR, JYJV, JYJVR, JVPVJVVP, JYVP, JYJVP, JVVPR, JYVPR, JYJVPR, JVVP2, JVVP2R, JVVP3, 0.12 1.5 Mmm2 JVVP3R 1-100 for quad (3) for general industrial computer, low voltage transmission line e, etc. DJVPV, DJVVP DJYVP, DJYJVP DJYPV, DJYJPV, DJVPVP, DJYPVP, DJYJPVP, DJVP3V, DJVVP3, DJYVP3, DJYJVP3, DJYP3V, DJYJP3V, DJVP3VP3, DJYP3VP3, DJYJP3VP3, DJYJVP3, DJYP3V, DJYJP3V, DJVP2V, DJVVP2, DJYVP2, DJYJVP2, DJYP2V, DJYJP2V, D JVP2VP2 DJYP2VP2, DJYJP2VP2 note: this column model with "R" dropping out for structure of soft cable. 0.5-1.5mm2 1-84 pairs (3 lines) are used in electronic control devices, automation, digital inspection, computer circuits and other general industrial computer detection devices. Jvp22, jvp2-22, jvp2-22, jvp3-22, DJYVP22, DJYVP22, DJVVP22, djvvpvp22, djypvv22, djyjpvvvvvvvv22, DJVPVP22, DJVPVP22, djypvpvpvp22, DJYJPVP22 0.5-1.5mm2 5-64 pairs (3 line groups) djyvp3-22, djvp3-22, DJYJVP3-22, DJVP3V22 DJYP3V22 DJYJP3V22, DJYP3VP3-22, DJVP3VP3-22 djyjp3vp3-22, DJVVP2-22, DJYVP2-22, DJYJVP2-22, DJYP2V22, DJYJP2V22DJVP2V22, DJVP2VP2-22, DJYP2VP2-22, DJYJP2VP2-22
耐火机理在矿用电缆的绝缘和护套材料中加入某种添加剂,降低聚合物产生的热量,防止聚合物分解或促进绝缘和护套材料炭化形成保护层;在线芯处增加一层云母玻璃丝带等无机绝缘材料,在绝缘和护套层被火燃蚀后,*缠包在导体上的云母耐火带保护而继续通电,从而在着火时保持一定时间的正常运行。
跳跃闭锁继电器线圈的电压。跳跃闭锁继电器的电流线圈中的电压降应校验操作回路额定电压的5%,电压线圈动作值不大于操作回路额定直流电压的70%,保证操作直流电源在规定范围内波动时,TBJ可靠动作,同时TBJ电压动作值应不小于操作回路额定直流电压的50%,以保证操作回路直流电源接地时,保护不会误动作。这也是TBJ电气检验中必须要检验的一个项目之一。跳跃闭锁继电器绝缘性能。跳跃闭锁继电器的电流线圈无电气联系的各导电部分之间,能承受工频2000V电压,时间为1分钟,所有导电部分对安装架之间,能承受工频2000V电压,时间1分钟。
VVR32铜芯聚氯乙烯绝缘钢丝铠装聚氯乙烯护套软电力电缆。VLV32铝芯聚氯乙烯绝缘钢丝铠装聚氯乙烯护套电力电缆。KYJVZR-KYJV铜芯交联聚乙烯绝缘聚氯乙烯护套控制电力电缆敷设在室内、电缆沟、管道固定场合。
三、电气特性:额定电压:U0/U300/300V/300/450V测试电压:U3000V执行标准:符合德国VDE、GB。弯曲半径:8.0-7.0×电缆外径温度范围:移动安装:-15℃~+80℃我们生产的高柔性电缆、耐弯曲性能好抗扭动,价格明显优于同类进口产品,是替代进口产品的**选择。
Purpose: this product is used for downhole telephone communication welding line, distribution line and user line.
MHYVP 2 * 3.3+2 * 0.85 data for mine shielded communication cable 1. Tin coated copper wire is used for conductor, 47/0.3 for conductor, 12/0.3 for 0.85, and 7/0.28 tin coated copper wire for drainage line. 2. Insulation color: 3.3 the wire core is a red one and a blue one, while the 0.85 wire core is a white one and a green one. The white wire core is wrapped with aluminum foil. 3. Insulation thickness: 3.3 core insulation thickness is 0.5, and the outside diameter after insulation is 3.5 mm. The insulation thickness of wire core is 0.7 and the outside diameter after insulation is 2.5mm. 4. Into line with the four wire core is arranged for red, green, blue, white, streamline, and row streamline to conductors are twisted together, don't put longitudinal, are not added when cabling filler, external use aluminum foil winding and cable core, then a layer of polyester film around the package, the outside is a layer of copper wire braided shielding (shielded copper wire tin plating). 5. Sheath: the front diameter is 8.2mm, the back diameter is 12mm (between 11.7mm and 12mm), and the sleeve is flame retardant blue
MHY32(PUYV39、PUYV39-1)矿用聚乙烯绝缘阻燃聚氯乙烯护套单层钢丝铠装井筒信号电缆用于斜井或竖井中作主信号电缆MHYVRP(PUYVRP)矿用聚乙烯绝缘阻燃聚氯乙烯护套铜丝编织屏蔽信号软电缆用于井下平巷或斜巷作信号电缆MHYVP(PUYVP)矿用聚乙烯绝缘阻燃聚氯乙烯护套铜丝编织屏蔽。
KVVRP铜芯聚氯乙烯绝缘和护套编织屏蔽控制软电缆敷设在室内移动要求柔软、屏蔽等场合。KVVP2铜芯聚氯乙烯绝缘和护套铜带屏蔽控制电缆敷设在室内、电缆沟、管道等要求有屏蔽的固定场合。KVVP3铜芯聚氯乙烯绝缘和护套铝塑复合带屏蔽控制电缆敷设在室内、电缆沟、管道等要求有屏蔽的固定场合。
交叉线一般用于同一类设备之间的连接,比如电脑和电脑、路由器和路由器(现在也有支持直通线的设备,但保险起见,还是用交叉线比较好)。直通线用于不同类设备之间的连接,比如电脑和路由器。了解更多相关知识请关注公众号“电工电气学习”。很明显,家庭中更适合直通线。所以,在家庭中,一般所有水晶头都只选用一种排线方法——T568A或T568B任选其一。T568A的排线顺序为:白绿,绿,白橙,蓝,白蓝,橙,白棕,棕;T568B的排线顺序为:白橙,橙,白绿,蓝,白蓝,绿,白棕,棕。
•ZR-YJV即阻燃YJV,全称是阻燃交联聚乙烯绝缘聚氯乙烯护套电力电缆阻燃电缆分类根据电缆阻燃材料的不同,阻燃电缆分为含卤阻燃电缆及无卤低烟阻燃电缆两大类。其中含卤阻燃电缆的绝缘层、护套、外护层以及辅助材料(包带及填充)全部或部分采用含卤的聚乙烯(PVC)阻燃材料,因而具有良好的阻燃特性。
电缆结构:规格型号导体直径绝缘外径编织密度电缆外径SYV1/0.33裸铜1.9mm单层≥80%3.4±0.2mmSYV1/0.33裸铜1.9mm双层≥80%3.9±0.2mmSYV1/0.5裸铜3.0mm单层≥92%5.0±0.2mmSYV7/0.17裸铜3.0m。