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矿用数据传输阻燃电缆MHY32望谟30X2X7/0.28

发布时间: 2025-03-19

矿用数据传输阻燃电缆MHY32望谟30X2X7/0.28
Technical indicators: polyvinyl chloride insulated cables long-term allowed working temperature over 70 ℃, the cable temperature under installation should not below 0 ℃, outer diameter (D) is less than 25 mm cable bending radius is allowed, should not be less than 4 times of cable diameter; The outer diameter (D) shall be the allowable bending radius of 25mm and above cables, and shall not be less than 6 times of the outer diameter of cables.
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 

Solid insulated filled cables are suitable for urban and township telecommunication lines of local telecommunication networks and for special network lines connected to public networks. Mainly used for pipeline laying. The inner and outer surfaces of the cable core and the shield layer are filled with oil paste and poured to prevent water intrusion. The mechanical and electrical properties of the cable remain unchanged under conditions of 30~C - 60~C.

  铁路信号电缆使用特性:(1)电缆的使用环境温度为-40℃~+60℃(2)电缆导体长期工作温度应不超过+70℃。(3)电缆敷设环境温度:聚氯乙烯外护套电缆应不低于0℃;聚乙烯外护套电缆应不低于-20℃。(4)电缆的允许弯曲半径:非铠装电缆应不小于电缆外径的10倍;铠装电缆应不小于电缆外径的15倍。

矿用数据传输阻燃电缆MHY32望谟30X2X7/0.28

The solid insulated filled cable is suitable for the urban telecommunication lines of the local telecommunication network and the special network lines connected to the public network. Mainly used for pipeline laying. The inner and outer surfaces of the cable core and the shield layer are filled with oil paste and poured to prevent water intrusion. The mechanical and electrical properties of the cable remain unchanged under conditions of 30~C - 60~C.

产品特点电动三通内螺纹球阀有两座和四座密封结构,阀芯孔道有L型和T型两种结构形式,采用控制阀芯旋转角度,改变阀芯孔道与管道口的连接状态,可实现对三条支管不同的组合控制。三通球阀流通能力大,可控制气体、液体、蒸汽,更适用于控制高粘度,纤维颗粒状的流体。也适用于密封要求较严格的场合。两阀座密封三通球阀具有结构紧凑、外形美观、密封性能好,它能实现对管道中介质流向的切换。也能使相互垂直的两个通道连通或关闭。

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) 矿用数据传输阻燃电缆MHY3230X2X7/0.28

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

  因此,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,但是,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,所以,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。

矿用数据传输阻燃电缆MHY32望谟30X2X7/0.28

  4、使用特性:电缆敷设温度应不低于0℃,电缆导体的长期允许工作温度为70℃。电缆允许的弯曲半径:对铠装的电缆,应不小于电缆外径的6倍。对有铠装或铜带屏蔽结构的电缆,应不小于电缆外径的12倍。对有屏蔽层结构的软电缆,应不小于电缆外径的6倍。

Self-supporting full-plastic cable (HYAC) : self-supporting full-plastic cable has two kinds of concentric structure and calabash structure. The commonly used HYAC full-plastic cable is calabash structure. Wire: annealed bare copper wire with diameter of, 0.4, 0.5, 0.6, 0.7, 0.8 and 0.9; Color the insulation line according to the full chromatographic standard. A single insulated wire is twisted in pairs at different pitch to minimize crosstalk and a specified chromatographic combination is used to identify pairs of wires. Cable core: the cable core structure is based on 25 pairs of cables. More than 25 pairs of cables are assembled according to the unit. Each unit is wrapped with the unit of specified chromatogram to identify different units. More than 100 pairs of cables plus 1% of the reserve pair. Shielding: the shielding layer is made of corrugated metal tape which is wrapped vertically on the outside of the cable core wrap belt and firmly bonded on both sides. The metal strip of the shielding layer is coated with plastic film to facilitate bonding with the sheath to prevent corrosion of the shielding layer. Protective sleeve: protective sleeve is black low density polyethylene, can use double protective sleeve according to the need.

专家点评:活性炭对实木门甲醛的吸附作用很明显,但是根据空间的大小不同,放置活性炭的量也有所不同。另外,活性炭吸附到一定程度后需要进行更换。活性炭的效果虽然不错,但是和其他方法一样,并不能完全清除空气中的甲醛。空气净化器空气净化器在吸收实木门甲醛方面有一定功效,但是空气净化器一般只在封闭的空间使用才有效。如果在开窗户的情况下使用空气净化器,不仅没有什么效果而且还浪费电。甲醛捕捉剂甲醛捕捉剂也是一种吸收甲醛的有效方法。

  ●型号及名称YJV(YJLV) 交联聚乙烯绝缘聚氯乙烯护套电力电缆YJV22(YJLV22) 交联聚乙烯绝缘聚氯乙烯护套钢带铠装电力电缆YJV32(YJLV32) 交联聚乙烯绝缘聚氯乙烯护套细钢丝铠装电力电缆ZRC-YJV(ZRC-Y。

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