5、生产范围型号额定电压V芯数标称截面mm2227IECRV300/50011.IECRVB300/30020.IECRVS300/30020.3-0.25227IECRVV300/3002-300.5-6.。
10KV及以下电缆平行安装时，相互净距不小于0.1m，10-35KV不小于0.25m；交叉安装时距离不小于0.5m。
电缆敷设温度不低于0℃，弯曲半径：多芯电缆≥15(D+d)，单芯电缆≥20(D+d)，（D为电缆外径，d为导体外径）。
产品型号：WDZ-RY：多根铜丝导体≥0.5mm²WDZ-BY：单根或7根铜丝导体≥0.5mm²WDZ-BYR：多根细铜丝导体≥2.5mm²应用标准：GBQ/WTL电缆结构：导体：无氧裸铜丝绝缘：低烟无卤阻燃绝缘颜色：可选额定电压：450/750V测试电压：2500V工作温度范围：-20℃~+90℃。
MHYV（PUYV）：聚乙烯绝缘聚氯乙烯护套煤矿用信号电缆用于矿场作普通信号传输，适用于固定敷设。
MHYVRP：聚乙烯绝缘铜丝编织屏蔽聚氯乙烯护套煤矿用信号电缆，用于电场干扰较大的场所作信号传输，电缆较柔软。
产品型号：TRVVP中度柔性双护套屏蔽拖链电缆电缆结构：导体：超细精绞无氧铜丝符合VDE0295CLASS6标准绝缘：特殊混合PVC柔性绝缘线芯：两芯及以上集束绞合护层：(可选)无纺布内护套：丁腈混合柔性护套总屏蔽：无氧铜丝编织屏蔽(70%以上密度)外护套：丁腈混合柔性护套颜色：黑色(RAL9005。
电机的旋转速度为什么能够自由地改变？电机旋转速度单位：r/min每分钟旋转次数，也可表示为rpm.：2极电机50Hz3000[r/min]4极电机50Hz1500[r/min]电机的旋转速度同频率成比例感应式交流电机（以后简称为电机）的旋转速度近似地确决于电机的极数和频率。
由电机的工作原理决定电机的极数是固定不变的。
由于该极数值不是一个连续的数值（为2的倍数，极数为2，4，6），一般不适和通过改变该值来调整电机的速度。
单芯电线4平方电线用于3匹空调以上，单芯电线6平方电线用于总进线，双色线用于接地线。
二芯、三芯护套电线是做明线使用，多用于工地上施工用，家装不太用到。
三芯护套电线2.5平方可用于柜式空调上用。
聚氯乙烯绝缘矿用执行标准:YD/T产品用途:本产品适用于固定敷设在矿井、巷道等作通信干线及分线箱与机的连接线。
Low smoke zero halogen cables use features: 1. The cable of rated voltage UO/U: 450/750 v ac polyolefin UO/U for 0.6/1 kv2. The long-term working temperature of cable: - 20 ℃ to 90 ℃ and 40 ℃ - 105 ℃ 3. Recommend a bending radius: no armoured cable should be not less than 6 times of cable diameter, structure of armoured or copper tape screened cable should be not less than 12 times of cable diameter.
VV22VLV22聚氯乙烯绝缘钢带铠装聚氯乙烯护套电力电缆 敷设在室内、隧道及直埋土 壤中，电缆能承受压力和其他外 。
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
绝缘单线绞合成对后采用心式（10对、20对）或单位式（30对及以上）绞合成缆芯，每个基本单位的子单位扎带颜色相同，各基本单位扎带颜色按全色谱要求排列。
缆芯表面采用非吸潮聚脂带或无纺布带绕包后再加挡潮金属屏蔽带纵包。
Tianjin cable pull branch factory in line with the principle of "customer is", with "honest, trustworthy, thoughtful" service concept won the trust of the extensive business. I company for the pre-sale, sale, after-sales service promise as follows: 1, in order to deepen the understanding of our company, we welcome you, experts to visit factory, our company will provide accommodation and convenient work. 2. Provide customers with product price information and product information. 3. In order to ensure the high of our products, our company adopts domestic high- materials and follows the ISO 9001 guarantee system
主回路，就是输入输出而已变频器有单相和三相之分，单相变频器一般是单相220伏供电的，因为国内民用都使用这种单相电压，这种单相变频器也迎合而生，理论上接入电源可以广泛点，很多民用的小设备可以使用这类变频器和电机来完成调速。
上图上半部就是主回路接线，非常简单，输入有个空气开关断路器之类的器件，给变频器L1和N线供电，变频器输出UVW接电机的UVW端，这样主回路的接线就已经完成了，主回路接线，主要是线比较粗，线头一般都要压上线耳，这样和变频器的端子接触电阻小，保证导电性能良好。
It is composed of different material conductors in metal sleeves with insulating materials, which are processed into a flexible solid assembly.
最常用的方法就是给电缆套上钢管或直接采用高导磁率材料制成的铠装型电缆——ASTP-120Ω（for RS485 CAN） one pair 18 AWG GS-HRPVSP屏蔽电缆GS-HRPVSP屏蔽双绞线；（MODBUS总线；MODBUS通讯电缆；MODBUS通信电缆；MODBUS-RS485。