卢龙HYAT5320对0.5通讯电缆英俊

卢龙HYAT5320对0.5通讯电缆英俊

　　控制电缆泛指设备仪表供电/信号控制。代表型号：KVV/KYJV/还有其它仪表线等等产品说明:执行标准：GB/T。阻燃电缆还应符合IEC337-8标准的技术条件。尤其适用于消防与保安系统保护回路的控制及动力的传输线。
　　HYAC：铜芯实心聚烯烃绝缘自承式挡潮层聚乙烯护套市内通信电缆。HYA53：铜芯实心聚烯烃绝缘挡潮层聚乙烯护套钢塑带铠装聚乙烯护套市内通信电缆。HYAT53：铜芯实心聚烯烃绝缘填充式挡潮层聚乙烯护套钢塑带铠装聚乙烯护套市内通信电缆。

　　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。

　　阻燃电缆指标1．成品电缆导体(R类)直流电阻(符合GB3956规定)2．工频电压试验：交流50HZ3.5KV/5min不击穿IEC阻燃等级为了评定线缆的阻燃性能优劣，分别制定了IEC、IEC和IEC三个标准。



Power cables have many advantages and occupy less land. Generally, it is buried in soil or laid in indoor, ditch and tunnel. The insulation distance between lines is small. High reliability. It is less affected by climatic conditions and surrounding environment, stable transmission performance and high reliability. It has more favorable conditions for the development of ultra-high voltage and large capacity, such as low temperature, superconducting power cable, etc. The distributed capacitance is large. Less maintenance. It's less likely to shock.

，星三角降压启动。15KW以上的三相异步电动机多采用星三角降压启动，Zui终电机还是以三角形接法来运行。三相异步电动机星形启动和三角形△启动的特点对比分析。1，同功率下，电机星形启动时，转矩约为三角形△启动时的1/2，但是启动电流约为三角形△启动时的1/3，三角形△启动时电流大，转矩也大，说白了比较有劲。2，电机三角形△接法时，不存在中性点，星形接法时存在中性点，电机绕组一般都是对称负载，所以没必要引出中性线。

　　供电系统电表远控抄表数据传输线，供水系统水表远程数据传输信号线等2、产品说明：◆内导体使用多支退火裸铜绞合◆聚氯乙烯绝缘◆多芯芯线绞合成缆◆外包铝箔屏蔽◆铜线编织屏蔽◆聚氯乙烯护套◆额定电压Uo/U为300/300V◆长期允许工作温度应不超过70℃RS-485电缆信号线特性阻抗120欧姆，导体为2。

　　同轴射频电缆SYV系列SYV-75-3|SYV-75-5|SYV-75-12|SYV-75-4|SYV-75-7|SYV-75-9|SYV-50-2|SYV-50-3|SYV-50-5|SYV-50-7|SYV-50-9|SYV-50-12|SYV-50-15|SYV-50-17|SYV-75-15。
Purpose: the self-supporting non-filled cable is suitable for the urban and township telecommunication lines of local telecommunication network, and also for the special network lines connecting to the public network. It is economical and practical to use the same outer protective layer for hoisting line and cable. The mechanical and electrical properties of the cable remain unchanged under conditions of 30~C - 60~C. Structure: wire: annealed bare copper wire, copper wire diameter is 0. 4, 0. 50, 0. 60, 0. 70, 0. 80, 0. 90 mm. Insulating material: high density polyethylene or ethylene-propylene copolymer. The color of the insulated wire is in accordance with the full chromatographic standard. Pair of insulated wires: two different colored insulated wires are twisted in pairs according to different pitch and are identified by a specified chromatographic combination. Core structure: with 25 pairs as the basic unit, more than 25 pairs of cables are assembled according to the unit, each unit is wired with the unit of specified chromatogram to identify different units. 100 pairs or more of cables plus 1% of the reserve pair. Core tape: wrap with a polygrease film tape. Shielding: the two sides are overlapped with or without corrugated metal strip, beyond the cable core of the longitudinal capsule. The plastic film coated on the surface of the shielding belt and the bonding sheath of the protective layer: black low density polyethylene. Hoisting line: the hoisting line is 7 strands of galvanized steel strand, nominal outside diameter is 6. 3 and 4 mm. The tensile strength of two types of 75mm is not less than 3000kg and 1800kg respectively. The suspension wire is coated with thermoplastic paint to prevent the steel wire from corrosion. Identification and length marking

　　二、市话缆用途HYA型、HYAT型、HYAC型、HYPAT型、HYPA型和HYA53型HYAT53型、HYPA53型、HYPAT53型电缆是为电话交换区、中继干线而设计的电话电缆，HYA、HYAT、HYPA和HYPAT主要用于管道铺设，也可用于架空，但需要吊线；HYAC只适用于架空，无需用吊线或挂钩。



　　屏蔽带表面涂敷的塑料薄膜与护层粘接自称是电缆护套：黑色低密度聚乙烯。自承式电缆吊线：吊线为7股镀锌钢纹线，标称外径为6.3mm和4.75mm两种，其抗张强度分别不小于3000kg和1800kg，吊线用热塑性涂料涂敷，以防钢丝锈蚀。

　　产品标准：YD/T产品型号：ZA-RVV（ZRRVVZRVVRRVVZ）通信电源用阻燃软电缆ZA-RVV22（ZRRVV22ZRVVR22RVVZ22）通信电源用阻燃钢带铠装软电缆本产品适用于架空、管道、室内电缆沟、地下直埋。

例发动机组控制系统设计——使用多重背景设某发动机组由1台汽油发动机和1台柴油发动机组成，现要求用plc控制发动机组，使各台发动机的转速稳定在设定的速度上，并控制散热风扇的启动和延时关闭。每台发动机均设置一个启动按钮和一个停止按钮。项目的编程步骤如下：创建S7项目。使用菜单“文件”à“新建工程”向导创建发动机组控制系统的S7项目，并命名为“多重背景”。CPU选择CPU315-2DP，项目包含组织块OB1。

This product is used for household appliances, electric tools and various kinds of mobile appliances with rated ac voltage of 450/750v or less. (1) rated voltage Uo/U of YZ type is 300/500v, and YC type is 450/750v. (2) the wire core long-term allowed working temperature does not exceed 65 ℃. (3) w-type cable has weather resistance and certain oil resistance performance, which is suitable for use outdoors or in contact with oil pollution. (4) ZR cable has flame retardant performance.

　　二、执行标准：Q/SD007—1998三、电缆的型号、名称和使用条件型号名称使用条件ia-K2YV本安型PE绝缘，PVC护套二芯绞合屏蔽控制电缆1、固定敷设在室内、电缆沟或管道中；2、电缆的工作温度：-20℃~+65℃；3、电缆的敷设温度不低于0，弯曲半径不小于电缆外径的10倍；4、额定电压450/。