初冬MHYVP矿用镀锌钢丝铠装电缆灞桥

初冬MHYVP矿用镀锌钢丝铠装电缆灞桥
　　产品型号:HYAHYACHYATHYYHYVHYY23HYV23HYYT23HYA23HYAT23HYATC主要产品:充气电缆,自承式架空电缆,充油电缆,填充型电缆,屏蔽电缆,非屏蔽电缆 HYA电缆_充气电缆的相关产品HYA电缆_充气电缆HYAHYACHYA23铠装通信电缆HYV22HYA53。
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 

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.

　　 铠装双绞屏蔽型电缆 ASTP-120Ω（for RS485 CAN） one pair 18 AWG ，黑色护套，电缆外径12.3mm左右。可用于干扰严重、鼠害频繁以及有防雷、防爆要求的场所。



Plastic insulated control cable: GB9330-88 scope of application: this product is fit for ac rated voltage up to and including 450/750 control, monitoring circuit and protection circuit using features: 1, the conductor long-term allowed working temperature is 70 ℃. 2, when laying environment temperature 0 ℃ or higher. 3. Minimum bending radius: 4. For unarmored cable, it shall be no less than 6 times the outer diameter of the cable. 5. The cable with armor or copper shield shall not be less than 12 times the outer diameter of the cable. 6. The soft cable with screen shielding structure shall not be less than 6 times the outer diameter of the cable.

今天为大家介绍一下影响密封深沟球轴承密封性能有哪些因素？：通过密封深沟球轴承试验研究，对影响密封深沟球轴承密封性能的主要因素进行系统分析，提出提高密封深沟球轴承性能的主要对策与措施。关键词：深沟球轴承；密封轴承；结构；零件；性能各种家用电器、汽车、摩托车和航空航天等行业出于简化主机结构、有利安装、维护及消除周围环境对轴承的污染，需要选用大量的密封轴承，对密封轴承的质量要求不仅要保证较高的寿命可靠性，而且必须保证有效的润滑和密封效果以及减振降噪等性能。

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) MHYVP矿用镀锌钢丝铠装电缆5X2X7/0.37

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

RS485 cable product description: Characteristic impedance of 100 ohms, conductor is 2 * 2 * 24 awg multi-strand tin electrolytic copper wire twisted and become, insulating sheath like installation of design and color recognition, overall aluminum foil/polyester belt shielding, additional independent stranded tinned copper wire grounding conductor, industrial gray PVC outer sheath, the standard 1 to RS - 485 communication cable, the characteristic impedance of 120 ohms, conductor is 2 * 24 awg stranded tinned copper wire, PE insulation, covered with aluminum foil/polyester composite with + 90% tin plated copper wire cover, double shielding with independent grounding conductor is RS - 485 communication cable.



　　DJYP2V(R)P2聚乙烯绝缘铜带绕包分屏总屏聚氯乙烯护套计算机用屏蔽(软)电缆。DJYV(R)P3聚乙烯绝缘铝塑复合带绕包总屏聚氯乙烯护套计算机用屏蔽(软)电缆。DJYP3V(R)聚乙烯绝缘铝塑复合带绕包分屏聚氯乙烯护套计算机用屏蔽(软)电缆。

BV line, BVR line, RVSP double stranded shielded cable, RVS double stranded cable, RVB parallel line, RV line RVSP Shielded twisted-pair cable RVSP (shielded twisted-pair cable, shielded cable, shielding twisted-pair electric (HYVP, RVVP) RVVP twisted-pair shielded cable < < shielded wire > > is shielded twisted-pair cable RVSP series on the basis of RVS coupled with a layer of copper wire shielding net, so the transmission loss, shielding the outside world better than RVS series, but because of the copper wire shielding network, its cost is also much higher than RVS series. Are often used to those who has a high re on the transmission. Technical indicators: polyvinyl chloride insulated cable long-term allowed working temperature over 70 ℃, the cable temperature under installation should not below 0 ℃, outer diameter (D) is less than 25 The allowable bending radius of mm cable shall not be less than 4 times the outer diameter of the cable. Diameter (D) of 25 mm and above of permissive bending radius of cable, not less than 6 times of cable diameter. The product description: this product is fit for ac rated voltage up to and including 450/750 power, electrical appliances, instruments, instrumentation, telecommunications e, lighting circuit and automatic device fixed installation, connection with a soft line, installed with a soft line and strong with shielded wire, according to the needs of use also can produce this kind of wire and cable fire retardant class (ZR), high flame retardant class (GZR), heat-resistant class (90 ℃, 105 ℃, 200 ℃, 250 ℃), low temperature resistant, nylon sheath, refractory (NH ), the company's main products: power cable control computer cable wire and cable wire and cable we specialized in wire and cable production and sales. Our products are high and low price, complete variety, there are all kinds of wire and cable, domestic orders can be delivery. We will with the high service to your satisfaction. If you have please telephone subscribers.

在预压力作用下,沿被连接件表面就会产生较大的摩擦力,显然,只要轴力小于此摩擦力,构件便不会滑移,连接就不会受到破坏,这就是高强度螺母连接的原理。高强度螺母连接是靠连接件接触面间的摩擦力来阻止其相互滑移的,为使接触面有足够的摩擦力,就必须提高构件的夹紧力和增大构件接触面的摩擦系数。构件间的夹紧力是靠对螺栓施加预拉力来实现的,所以螺栓必须采用高强度钢制造,这也就是称为高强度螺栓连接的原因。高强度螺栓连接中,摩擦系数的大小对承载力的影响很大。

Armoured twisted-pair shielded cable | RS485 ASTP dedicated cable CAN be used in low speed, short, no ordinary twisted pair, on the other hand, at high speed, long transmission, it must adopt impedance matching (usually 120 Ω) of RS485 special cable (STP - 120 Ω (for RS485 & CAN) one pair 18 AWG), but also should be used under harsh type sheathed twisted-pair shielded cable (ASTP - 120 Ω (for RS485 & CAN) one pair 18 AWG).