可人MHYBV矿用主传输电缆揭东



可人MHYBV矿用主传输电缆揭东
3、产品标准:GB9330.2-88《聚氯乙烯绝缘和护套控制电缆》4、电缆型号、名称及使用范围型号名称截面mm2芯数主要用途ZR-KVV铜芯阻燃聚氯乙烯绝缘阻燃聚氯乙烯护套控制电缆0.75~62-61敷设在室内、电缆沟管道固定场合ZR-KVVP铜芯阻燃聚氯乙烯绝缘阻燃聚氯乙烯护套编。
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℃;平均大相对湿度为≤95%(+25℃时)允许附设与安装的温度应不大于-10℃ 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
电缆型号、名称、规格及用途:MHYV(PUYV)聚乙烯绝缘阻燃聚氯乙烯护套矿用信号电缆2-57/0.28用于平巷、斜巷及机电耍硐室MHJYV(PUJYV)聚乙烯绝缘阻燃聚氯乙烯护套加强矿用通讯电缆2-57/0.28(三钢四铜)用于平巷、斜巷、有较好的抗拉强度MHYVP煤矿用聚乙烯绝缘编织屏蔽聚氯乙烯。
7)电缆外经:£18mm。在一定条件下,也可用于传输2048kbit/s以上的数字信号。适用于矿山、电厂、市内、近郊及局部地区。适合任何弱电安防工程使用。由于在芯线的外面包有一层铜丝屏蔽层,因此适合于在一些干扰比较大的地方使用,亦可用于对传输的信号要求严格的场合。

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。
全电动式齿轮泵有一系列优点,特别是在环保和节能方面的优势,据报道,目前较先进的全电动式齿轮泵节电可以达到7%,另外,由于使用伺服电机注射控制精度较高,转速也较稳定,还可以多级调节。但全电动式齿轮泵在使用寿命上不如全液压式齿轮泵,而全液压式齿轮泵要保证精度就必须使用带闭环控制的伺服阀,而伺服阀价格昂贵,带来成本上升。电动液压式齿轮泵是集液压和电驱动于一体的新型齿轮泵,它融合了全液压式齿轮泵的高性能和全电动式的节能优点,这种电动-液压相结合的复合式齿轮泵已成为齿轮泵技术发展方向。
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) MHYBV矿用主传输电缆1X3X7/0.37
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℃ ●月平均大相对温度:95%(+25℃) ●安装敷设环境温度:≥-10℃
●安装时小弯曲半径: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
二:产品执行标准Q/HHTZH002.4(等效采用英国BS5308标准)阻燃执行GB标准三:使用特性1. 交流额定电压:U0/U300/500KV2. 高工作温度:聚乙烯绝缘不超过70℃ 交联聚乙烯绝缘90℃ 低烟无卤阻燃聚烯烃70℃ 低烟无卤阻燃交联聚烯烃90℃和125℃两种 。

Fully polychlorinated local cable HJVV HJVVP 105 core (21 x 3 x 0.5+21 x 2 x 0.5
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.
圆锥滚子轴承属分离型轴承,轴承内、外圈均具有锥形滚道,滚子为圆台形。滚子与滚道为线接触,可承受较重的径向和轴向联合负荷,也可承受纯轴向负荷。接触角越大,轴向承载能力越高。圆锥滚子的设计应使滚子与内外滚道的接触线延长后交于轴承轴线上同一点,以实现纯滚动。新设计的圆锥滚子轴承采用加强型结构,滚子直径加大,滚子长度加长,滚子数目增多,采用带凸度滚子,使轴承的承载能力和疲劳寿命显着提高。滚子大端面与大挡边之间采用球面与锥面接触,改善了润滑。
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.

