KFVRP22氟塑料绝缘聚氯乙烯护套钢带铠装屏蔽控制软电缆。
KFFV22氟塑料绝缘和内护套聚氯乙烯外护套钢带铠装控制电缆。
KFFRV22氟塑料绝缘和内护套聚氯乙烯外护套钢带铠装控制软电缆。
KVVP铜芯聚氯乙烯绝缘聚氯乙烯护套编织屏蔽控制电缆。
RS485接口连接器采用DB-9的9芯插头座，与智能终端RS485接口采用DB-9（孔），与键盘连接的键盘接口RS485采用DB-9(针).RS-485通讯电缆2X0.5 2X0.75 2X1.0 2X1.5RS-485通讯电缆在一般场合采用双绞线就可以，但在要求比较高的环境下可以采用带屏蔽层的双绞。
KVV32聚氯乙烯绝缘，细钢丝铠装聚氯乙烯护套控制电缆敷设在室内、电缆沟中、管道、竖井内及地下，能承受一定的拉力作用。
PYYPTYY聚乙烯绝缘乙烯护套铁路信号电缆。
PYAPTYA聚乙烯绝缘挡潮综合护套（铁路）信号电缆。
您的满意－－我们不懈之追求!公司承诺，用户的需要就是我们的责任,电缆远销浙江上海天津辽宁云南广西广东安徽北京新疆重庆湖南湖北河北河南宁夏青海甘肃陕西西藏贵州四川海南黑龙江内蒙古山东福建吉林山西江西江苏电缆远销浙江上海天津辽宁云南广西广东安徽北京新疆重庆湖南湖北河北河南宁夏青海甘肃陕西西藏贵州四川海南。
具体区别方法：看网线截面，如果是铜色的话，就是铜丝，如为白色，则是用合金以次充好。
合金一般比较脆，容易断，导电性远不如铜丝，很容易在工程施工中造成问题。
线材一般那建议选择标准的485线，其为屏蔽双绞线，传输线不是像网线那样为单股的铜丝，而是多股铜丝绞在一起形成一根线，从而某根小铜丝断掉，也不会影响整个的使用。
相步距角0.9°（定子主极数16）的步进电机转速约150rpm以上，其减少振动量的效果就不明显。
如输入脉冲频率太快，对细分步进波形来说，由于不能得到希望的电流波形，会使电机跟踪精度变差。
第细分步进的细分数与降低振动效果:理论上细分数越多，降低振动的效果越明显，但实际到8细分时效果变化并不大。
8细分与16细分以上不会有效果的差别（即没有什么效果变化）。
下图表示两相HB型16主极的0.9°步进电机细分数与速度波动的图像；下图表示改变细分数与转子速度变化情况，电机同样为两相HB型16主极的0.9°步进电机。
表3导体标称截面mm2导体结构（根数/单丝直径mm）ABR0.50.20.75/0.2332/0.2230/0.252.5。
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
吊线和电缆用同一外护层，经济实用，安装敷设方便。
在一30~C一60~C的环境条件下，电缆的机械和电气性能保持不变。
结构：导线：退火裸铜线，铜线直径为0．32，0．4，0．50，0．60，0．70，0．80，0．90mm。
Our factory was founded in 1971, is a production and sales of various kinds of flame retardant communication cable, shielded cable for mine, mine screen communication cable, mine telephone cable, shielded cable for mine, mine fire retardant cable, flame retardant cable, mining flame-retardant control cable, communication cable, mining cable, flame retardant mining communication cable, communication cable, mine cable, mine, mine control cable, cable for mine monitoring, sensors, cable, cable, control cable, computer cable, flame retardant cable, shielded cable. City communication cable, railway cable, power line, electrical e wire and cable, video line, special cable. And other professional manufacturers. Enterprises with more than 300 employees, engineering and technical personnel more than 30 people, the factory goes to 20000 square meters, owns fixed assets of 15 million yuan, the total number of companies have production and inspection e more than 120 units (pieces), annual output value of 150 million yuan.
6、有屏遮结构的软电缆，应不小于电缆外径的6倍。
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-22钢带铠装聚乙烯绝缘铜丝编织总屏聚氯乙烯护套计算机用屏蔽钢带铠装(软)电缆。
Computer cable USES: this product is widely used in electricity, metallurgy, petroleum, chemical industry, textile and other departments of detection and control in a computer system or automated devices, as well as general industrial computer. Features: rated voltage UO/U is 300/500v. Allowed working temperature does not exceed 70 ℃, laying temperature not lower than 0 ℃, allowed bending radius should not less than 12 times of cable outer structure of soft cable should be no less than eight times outside the cable, copper tape screened cable shall be less than 15 times of cable diameter. Product code and significance: dj-electronic computer cable y-polyethylene v-polyvinyl chloride R- represents multiple strands of soft core p-copper wire shielding p2-copper belt shielding P3 aluminum plastic compound
以下是电流互感器的几种接线方法：A图A，一台互感器接线，主要用于测量对称三相电路中线路上的电流。
B图B，三台互感器星形接线方法，可测量对称和不对称三相电路（包括三相四线）中线路上的电流。
C图C，两台互感器V形接线方法，测量对称和不对称三相三线电路中线路上的电流。
三相电流矢量和为零，最下面电流表测量的是未装互感器那相的电流。
此接法也可用于继电保护接线，但灵敏度低。
D图D，两台互感器电流差接线法，用于线路、电机、并联电容器的继电保护接线，灵敏度较高。
ZR-KVVPZR-KVVP2ZR-KVV22ZR-KVV32ZR-KVVPZR-KVVRP1、用途：本产品供交流额定电压500V或直流电压1000V及以下配电装置中电器，仪表接线之用。
2、产品使用特性：电缆导体的长期允许工作温度应不超过70℃。
DJVP2V(R)P2-22聚氯乙烯绝缘铜带绕包分屏总屏聚氯乙烯护套钢带铠装计算机用屏蔽(软)电缆。
DJVV(R)P3-22聚氯乙烯绝缘铝塑复合带绕包总屏聚氯乙烯护套钢带铠装计算机用屏蔽(软)电缆。
2、产品标准：GB5023、3-85《额定电压450/750V及以下聚氯乙烯绝缘电缆（电线）连接用软电线》3、使用特征：1）U0/U为450/750V、300/500V和300/300V。
煤矿用控制电缆使用特性：电缆导体的长期允许工作温度为70℃，电缆敷设温度应不低于0℃。
ia-K3YVY本安型PE绝缘PVC护套三芯绞合屏蔽控制电缆适用于要求柔软的场合。
ia-K3YV（EX）本安型PE绝缘PVC护套三芯绞合屏蔽仪用电缆固定敷设在室内、电缆沟或管道中。
ia-k3YVR（EX）R本安型PE绝缘PVC护套三芯绞合屏蔽仪用软电缆适用于要求柔软的场合。