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Why does the Induction melting furnace accessories water-cooled cable not leak electricity

Why does the Induction melting furnace accessories water-cooled cable not leak electricity_introduction to the principle of water-cooled cable

Many devices will heat up after they are used for a long time, even cables. If the current is large, they will easily heat up. The occurrence of heat will affect the normal operation and service life. The water-cooled cable is a kind of cable that uses water to cool down. Because of the heat generation problem that is solved, the working strength and capacity of the water-cooled cable are much higher than that of the ordinary cable. We all know that the water we see every day is conductive, so why doesn’t the water-cooled cable leak? What is the principle of a water-cooled cable?


Water-cooled cable is a new type of cable. The main feature is hollow water-through. It is generally a special cable used in high-current heating equipment for medium-frequency and power-frequency high-current transmission. It is usually composed of three parts: outer sheath, wire and electrode, which is also the cable head. For ordinary water-cooled cables, the electrodes are welded using copper tubes and copper bars, which are not closely connected to the equipment. The wires are twisted with bare copper wires and have a large bending radius. The outer protective casing uses ordinary rubber hoses, which have low pressure resistance. The casing and the electrode are fastened by ordinary clamps, and the airtightness is not very good, and water leakage is relatively easy. Therefore, do not use water-cooled cables that are of poor quality. For water-cooled cables, the electrodes are made of integral copper rods by turning and milling, and the surface has been passivated or tinned. The wire uses tinned copper stranded wire, or enameled wire, which is woven by a CNC winding machine, with a small bending radius and high flexibility. The outer sheath is a synthetic rubber tube with a reinforced interlayer, which has high pressure resistance. Between the casing and the electrode is the used copper clamp, which is fastened by professional equipment cold extrusion, and has good sealing performance and is not easy to leak. Therefore, the use of x water-cooled cable is safer and more assured.