Water-cooled cable is a new type of cable, the main feature is the hollow water, generally used in high-current heating equipment for special cables, medium-frequency, power-frequency high-current transmission. Usually it consists of three parts: outer casing, conductor and electrode.

它最主要的特征就是电缆芯线的中心为空芯金属导体，所以中空通水，有明显的降温作用。因为通过电缆的电流太大，导致发热量太高，就需要用水来冷却这段电缆线，一般都是指从电容柜到感应圈的连接电缆。

Its main characteristic is that the center of the cable core line is a hollow metal conductor, so the hollow water, has a significant cooling effect. Because the current through the cable is too large, resulting in too high heat, the need for water to cool this section of the cable, generally refers to the capacitor cabinet to the induction coil connecting cable.

包围导线的橡胶管，导线，以及中心的冷却水管，屏蔽层、隔热层、金属外套层，层层相套。

Rubber pipes, wires, cooling pipes in the center, shielding layer, insulation layer, metal coat layer, layer by layer.

由于水冷效果很好，所以水冷电缆的电流密度能达到4A/mm²左右，比裸软电缆允许的电流密度提高了一倍。载电流量大，但是温升低，机械强度高，所以运行安全系数大大提高了。

As the water cooling effect is very good, the current density of the water-cooled cable can reach about 4A / mm, which is twice the allowable current density of the bare soft cable. The operation safety factor is greatly improved due to its large current carrying capacity, low temperature rise and high mechanical strength.

普通水冷电缆，电极是使用的铜管及铜排焊接而成的，与设备连接不紧密。而导线采用的是铜裸线绞制而成，弯曲半径大。外护套管则是使用普通橡胶软管，耐压低，套管和电极之间是采用普通卡箍紧固的，密封性不怎么好，比较容易漏水。所以质量不太好的水冷电缆不要使用。

The common water-cooled cable is made of copper tubes and copper busbars, which are not connected with the equipment. The wire is made of copper bare wire and has large bending radius. External casing is the use of ordinary rubber hose, low pressure, between the sleeve and the electrode is the use of ordinary clamp fastening, sealing is not good, relatively easy to leak. Therefore, do not use water cable with poor quality.

优质水冷电缆，电极是采用的整体铜棒车、铣加工成的，表面还做了钝化或镀锡处理。而导线使用的是镀锡铜绞线，或者是漆包线，经数控绕线机编织而成，弯曲半径小，柔软度高。外护套管则是有加强夹布层的合成橡胶管，耐压高。套管和电极之间是使用的紫铜卡箍，经专业设备冷挤压紧固好的，密封性较好，也不易漏水。所以使用优质的水冷电缆更加安全放心。

High-quality water-cooled cable, the electrode is used as a whole copper bar turning, milling, surface passivation or tin plating treatment. The wire is made of tin-plated copper stranded wire, or enameled wire, knitted by numerical control winding machine, with small bending radius and high flexibility. The outer casing is a synthetic rubber tube with a strengthened cloth layer, which bears high pressure. Between the sleeve and the electrode is the use of copper clamp, after professional equipment cold extrusion tightening good, good sealing, and not easy to leak. Therefore, the use of high-quality water-cooled cable is more secure and safe.

因为水冷电缆的外层结构是密封和绝缘的弹性橡胶软管，内部是导电软电缆铜线，循环冷却水在两者之间，就是在导线外面和电缆外包皮之间流动。电缆中的导线都是有绝缘层的，也不透水，水不和导线接触，所以不会漏电。

Because the outer structure of the water-cooled cable is a sealed and insulated elastic rubber hose, and the inner is a conductive flexible cable copper wire, circulating cooling water between the two, that is, between the wire and the cable sheath flow. The conductors in the cables are insulated, impervious, and water is not in contact with the conductors, so there is no leakage of electricity.