天联牌阻燃VV电缆岚县终身质保MHYV1X4X7/0.37矿用通讯电缆愤怒

天联牌阻燃VV电缆岚县终身质保MHYV1X4X7/0.37矿用通讯电缆愤怒

Dense places; In places with high safety re for dense cables or closed channels, automatic fire detection and alarm devices suitable for reliable operation of the environment should be e The oil supply system of open oil charging cable should be e with automatic fire alarm and lock device which can reflect the state of oil spraying. Places with high safety re, such as dense cable parts of underground public facilities, terminal setting of multi-return oil-filled cables and other places, can be e with special fire fighting facilities such as water spray extinguishing.



　　电缆地线芯绝缘采用具有抗氧化性能的K型B类低密度聚乙烯。聚乙烯的绝缘电阻高，耐电压好，介电系数小和介质损耗温度和变频率的影响也小，不但能满足传输性能的要求，而且能确保电缆的使用寿命。为了减少回路间的相互串扰和外部干扰，电缆采用屏蔽结构。

Converter cable shielding structure design: frequency conversion motor 1.8/3 kv and below special cable shielding generally adopt total shielding, frequency conversion motor of 6/10 kv dedicated cable shielding consists of split phase mask and the total shielding, shielding can generally be split phase adopts copper tape screened or copper wire copper strip composite shielding.

　　聚乙稀绝缘综合护套钢带铠装聚氯乙烯护套PTYA23PTYA22PTY23PTY22PTYAH23PZYA23PZYA22PZY23PZY220.8mm（1/1.0MM）4-61芯适用于交流额定电压500V或直流电压1000V及以下传输音频信号及固定敷设的铁路信号和集团自动化装配的控制线路，能传输铁路。



RS485 wiring can be arbitrary layout into star connection with tree, 485 wiring specification is the wiring must be hand in hand, when there is no use 485 hub and 485 relay setting directly into the star connection and connection in a tree, it is easy to cause reflection bus no. Many contractor in 485 wiring, use of star connection and tree, sometimes the very, but sometimes is always appear problem, and it is difficult to find the reason, is usually caused by non-standard wiring. If star connection or tree connection is required due to field connection, the 485 hub and 485 relay of shenzhen fuyongtong technology co., LTD can be used to solve related problems.

中间继电器实质上是电压继电器。但它的触点对数多，触头容量较大，动作灵敏。中间继电器的主要用途是：当其它继电器的触头对数或触头容量不够时，便可以借助中间继电器来扩大它们的触头数和触头容量，起到中间转换的作用。下图是JZ7系列的中间继电器的外形结构，大家可以参考一下：上图所示的中间继电器是由静铁芯、动铁芯、线圈、触点系统、反作用弹簧和复位弹簧等组成。它的触点对数较多，没有主、辅触点之分。各对触点允许通过的额定电流也是一样的，都为5A。

　　4.工作电容：平均值522nF/km5.远端串音防卫度：150kHZ时指定组合的功率平均值大于69dB/km本安型信号控制电缆的详细资料：产品特点:1、电缆型号、名称及使用范围型号名 称使用范围ia-K2YV本安型PE绝级、PVC护套二芯绞合屏蔽控制电缆固定敷设在室内、电缆沟或管道中。

　　产品用途：敷设在室内、电缆沟、管道等要求耐高温静电屏蔽的场合。6、低安装敷设温度：序号1～4-45℃序号5～140℃。HJVV、HJVVP、HPVV通信电缆用途：主要用于传输音频、150kHZ及以下的模拟信号2048kbit/s及以下的数字信号。
　　我国国家标准GB12666.6（等IEC331）将耐火试验分A、B两种级别，A级火焰温度950~1000℃，持续供火时间90min，B级火焰温度750~800℃，持续供火时间90min，整个试验期间，试样应承受产品规定的额定电压值。

　　可靠接地时整个485线路的地线必须要有良好的接触，从而保证电压一致，因为在实际施工中，为了接线方便，将线剪成多段再连接，但是没有将屏蔽线作良好的连接，从而使得其地线分成了多段，电压不能保持一致，导致共模干扰。



　　导体：多股铜导体，符合GB/T3956第5类（等同于IEC60228.5）。绝缘：聚氯乙烯混合料（PVC）。护套：柔性聚氯乙烯混合料（PVC），灰色（RAL7001）。芯线标识：≤5芯，彩色芯线；黑色芯线白色数字编号，黄绿地线。

　　型号、名称型号名称敷设方式DJYVP铜芯聚乙稀绝缘聚氯乙稀护套铜丝编织总屏蔽计算机电缆固定敷设DJYPV铜芯聚乙稀绝缘聚氯乙稀护套铜丝编织分屏蔽计算机电缆DJYPVP铜芯聚乙稀绝缘聚氯乙稀护套铜丝编织分屏蔽及总屏蔽计算机电缆DJYVRP铜芯聚乙稀绝缘聚氯乙稀护套铜丝编织总屏蔽软芯计。

位置控制接线图根据接线图我们可以看出，伺服的功能强大，拥有很多引脚，很多功能。但是我们可以根据自己的需求，只接其中的部分引脚即可。（其中7号引脚需接12~24v，41号引脚和29号引脚短接到0v，必须要接的）然后如果我们用plc对伺服进行控制，若是我们接的3,4,5,6号引脚，则我们需要将3号和5号引脚短接到24v，4号和6号引脚串接2KΩ的电阻后分别接到PLC的脉冲输出和方向输出端子上。如果我们用的是1，4，2，6号引脚，则我们不需要串电阻即可。

　　5．电缆允许弯曲半径：非铠装电缆小为电缆外径的6倍铜带屏蔽或钢带铠装电缆小为电缆外径的12倍四：基本型号及名称1．聚乙烯绝缘聚氯乙烯护套计算机用屏蔽电缆(包括DCS电缆)DJYV(R)P聚乙烯绝缘铜丝编织总屏聚氯乙烯护套计算机用屏蔽(软)电缆DJYPV(R)聚乙烯绝缘铜丝编织分屏聚氯乙烯护套计算。


At present, with the continuous development of kejiping, the flame retardant problem has gone from halogen flame retardant in the past to low halogen and non-halogen flame retardant. Companies in the development and production "of" communication power supply with the antiflaming fire-resistant flexible cable, the cable insulation and sheath using the low smoke zero halogen, high decomposition temperature and good mechanical properties of halogen-free, polymer materials, due to cable contains no halide and metal oxide, in does not produce harmful gases, and a lot of smoke, there is no cause the possibility of "secondary disasters", and it also has good mechanical properties and electrical properties, the operating re of cable, completely changed the deficiency of past flame retardant cable.

　　在缆芯中和屏蔽层的内外表面用石油膏填充或浇注处理，以防止煤矿中水分侵入。在煤矿常见的30~C一60~C的环境条件下，煤矿用通信电缆的机械和电气性能保持不变。用于平巷、斜巷及机电硐室做通信线以及用于平巷，竖井或斜井作主信号传输。

Armoured communication cable armoring cable type: HYA53, HYAT53, HYA23 HYAT23, HYV22, HYA22 (rat, buried) armoring communication cable USES: armoured communication cable mechanical protective layer can be appended to the structure of the cable, with the mechanical strength of the cable, antierosion capability, is vulnerable to mechanical and designed and vulnerable to erosion area telephone cable. Any kind of laying can be adopted, which is more suitable for direct buried laying in rock area. Armored communication cable structure: 1. Basic cable: any filled and unfilled cable with single sheath or double sheath structure. 2. Armored communication cable mechanical protection layer: type 53 adopts 0.15mm thick corrugated steel belt, which is longitudinal wrapped on the basic cable and overlapped on both sides. The surface of the steel belt is coated with plastic to prevent corrosion and water intrusion. The type 23,22 has similar performance with double steel band wrapping. 3. Armored communication cable sheath: black high-molecular weight low-density polyurethane or polyurethane sheath. Sheath thickness may depend on the basic cable outer diameter. 5. The marking contents of armored communication cables include: wire diameter, number of wire pairs, cable model, length, manufacturer name and year of manufacture. 6. Armored communication cable electrical characteristics: the cable meets all the electrical re of the basic cable. 6. Cable length: mechanically protected cable is made according to the length of the corresponding basic cable