HUJVV矿用数据传输阻燃电缆吉安1X2X7/0.28

HUJVV矿用数据传输阻燃电缆吉安1X2X7/0.28
This product is suitable for electronic computers with rated voltage of 500V or below, and cables for automatic connection, which have high re for protection. The k-type B low-density polymer with anti-oxidation property is adopted for the insulation of cable ground core. High insulation resistance, good voltage resistance, low dielectric coefficient and low dielectric loss temperature and variation of the medium can not only meet the re of transmission performance, but also ensure the service life of the cable. ? The cable is shielded for cross - circuit interference and external. The shielding re of cables are respectively adopted according to different conditions: the total shielding of the hinged cable, the total shielding of the hinged cable, and the total shielding of the hinged cable after the hinged cable is shielded. Shielding materials are round copper wire, copper belt, aluminum belt/plastic composite belt three. The insulating property of shielding pair and shielding pair. The transmission of the cable will not be affected if there is potential difference between shielding pair and shielding pair in use.
矿用信号电缆是一种信号传输工具。一般信号电缆传输的信号很小，为了避免信号受到干扰，信号电缆外面有一层屏蔽层，包裹的导体的屏蔽层，一般为导电布，编织铜网或铜泊（铝），屏蔽层需要接地，外来的干扰信号可被该层导入大地，避免干扰信号进入内层导体干扰同时降低传输信号的损耗。

矿用信号电缆主要技术性能及指标：20℃时导体直流电阻 Ω/km 7/0.28 ≤45 7/0.28(3钢4铜)≤73 1/0.8≤36.7固有衰减（800～1000HZ） dB/km ≤1.1 ≤1.3 ≤0.95 20℃时电缆绝缘线芯绝缘电阻 MΩ.km ≥3000  线对工作电容（800～1000HZ） uF/km ≤0.06  近端串音衰减（800～1000HZ） dB/500m ≥70 电感（800～1000HZ） uH/km ≤800 耐交流工频电压 1.5KV/1min通过 直流电阻差 ≤环阻的2%

矿用信号电缆的使用特性：导体的长期允许工作温度-40～+50℃；平均Zui大相对湿度为≤95%（+25℃时）允许附设与安装的温度应不大于-10℃ Zui小弯曲半径：MHYV、MHJYV型电缆为电缆外径的10倍，其它型号的电缆为外径的15倍

矿用信号电缆|MHYV矿用信号电缆|MHYVR矿用信号电缆|MHYVP矿用屏蔽信号电缆|MHY32矿用信号电缆|MHYVRP矿用屏蔽信号电缆｜矿用监测电缆 

　　敷设时环境温度不低于:固定敷设-30℃,非固定敷设-18℃Zui小弯曲半径：无铠装层应不小于电缆外径的8倍，带铠装层的电缆应不小于电缆外径的14倍在20℃时用直流500V电压试验稳定充电1min后绝缘电阻应不小于2500MΩ•Km各对绞屏蔽之间以及对绞屏蔽与总屏蔽之间应不断路电缆的线芯和线芯之间以及屏蔽。

　　KVV22铜芯聚氯乙烯绝缘聚氯乙烯护套钢带铠装kvv22电缆450/7504-370.75-10敷设在室内，电缆沟、管道直埋等能承受较大机械外力的固定场合。KVVP阻燃铜芯聚氯乙烯绝缘聚氯乙烯护套kvvp电缆450/7504-370.75-10敷设在室内，电缆沟、管道等要求屏蔽的固定场合。



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.

因此乳胶涂料是居室墙体装修的理想材料。不同产品的差距：目前，我国建筑涂料市场竞争激烈，国外的乳胶涂料产品纷纷进入中国，外商不仅带来了先进的技术，也带来了丰富的营销经验。这对虽是不小的冲击，但也促进了国内乳胶涂料水平的提高。国内外的乳胶涂料产品有哪些不同呢?国外产品突出的优点之一是开罐效果好。打开包装后，给人一种很好的印象，外观细腻、丰满，酷似油漆，粘度高而均匀并具有好的流动性;另一优点是施工性好，每平方米涂刷面积大、遮盖力强、涂膜平整无刷痕，色泽柔和，整体装饰效果好。

矿用信号电缆，适用于矿场作信号传输，可移动或固定使用。 
矿用阻燃信号电缆(现统称煤矿用阻燃通信电缆) HUJVV矿用数据传输阻燃电缆1X2X7/0.28

产品采用标准：MT818-1999 本产品用于煤矿井下监测、控制系统中低频信号传输线。

使用条件 :电缆使用环境温度为－40℃～+50℃；在25℃时湿度为95%；电缆敷设温度≥－10℃；电缆敷设时的弯曲半径MHYVR和MHYBV≥10倍电缆外径，其余型号≥15倍电缆外径。

●用途主要用于煤矿井下监测、监控、轨道运输系统作信息传输线，也可用于通讯系统作信息传输。

使用条件 ●环境温度：-40～50℃ ●月平均Zui大相对温度：95%(+25℃) ●安装敷设环境温度：≥-10℃

●安装时Zui小弯曲半径：MHYV、MHJYV为电缆外径的10倍，其他型号为电缆外径的15倍

电缆使用环境温度-40℃ ~ +50℃，电缆敷设温度≥-10℃，在25℃时的温度≤95%，电缆敷设时弯曲半径： MHYV31、MHYV型电缆≥ 10倍电缆外径 其余型号电缆≥15倍电缆外径

　　控制、监控回路及保护线路，电器仪表、配电装置的信号传输、控制与测量的使用。控制、监控回路及保护线路，电器仪表、配电装置的信号传输、控制与测量的使用。控制、监控回路及保护线路，电器仪表、配电装置的信号传输、控制与测量的使用。



　　滑行道边灯。装在滑行道两侧,间距小于60m,发出蓝光,标志滑行道两侧边界。机场灯按安装方式有立式和平地式两种，按光线在空间的分布有定向灯和全向灯两种，按发光强度有高、中、低3种。机场灯在结构上不同于一般户外灯具。

　　第四的25对是用“白棕”标识线缠着的。第五的25对是用“白灰”标识线缠着的。第六的25对是用“红兰”标识线缠着的。第七的25对是用“红桔”标识线缠着的。第八的25对是用“红绿”标识线缠着的。主要电气性能：1.直流电阻:20℃,0.5mm铜线,小于等于95Ω/km。

另一部分长期暴露在大气中，特别是水线部分，受到冲浪和水面上漂浮物的冲击，同时又受到涨潮、落潮的影响，使这部份钢结构表面经常干湿交替，特别容易生锈。现在采用线材喷锌、喷铝工艺，大大提高了钢闸门的耐蚀性，比原来采用的油漆工艺防腐年限提高5~6倍。喷锌、喷铝工艺与同类工艺性能比较(热镀锌工艺)热镀锌工艺预处理采用酸洗、磷化工艺，工件表面会有酸、碱液的残余物，留下了腐蚀的隐患，使热镀锌层容易产生脱落。

　　◎干线级-CMR级（直立燃烧测试RiserFlameTest）这是UL标准中商用级电缆（RiserCable）,适用安全标准为UL1666。实验规定在模拟直立轴上敷设多条试样，用规定的154.5KW煤气本生灯（527，500BTU/Hr）30分钟。