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When we first installed the metal shredder, linking was a very important part. Since metal shredders usually only use lead cables in the factory, users need to reconnect the cables separately when installing the cables. Please pay attention to the correct method when connecting the cable. Otherwise, it will have a significant impact on its use.
Let's take a look at the cable connection method of the metal shredder:
Strip the copper core of the cable about 30-35mm long from the metal shredder, and then wipe the copper wire with an emery cloth to make it shine. Strip the copper wire of the external three-core cable by 30-35mm, and then wipe it clean with an emery cloth.
Insert the three-core cable and the copper wire stripped from the external cable. Then tie it tightly with thin copper wire. Cut off the rest and use a pair of scissors to prevent it from being restrained. The three wire ends are welded separately. The surface of the welding head is smooth, without burrs, and the welding is wrong. If not, it should be re-welded. Until the requirements are met. Squeeze in half with polyester insulating tape. (Half-layer dressing method) 8-12 layers of dressing after dressing. Then wrap two layers with plastic tape to increase strength.
Wrap the three heel wires with plastic tape, and wrap the two layers over the end of each wire insulation over 50 mm. After bandaging, take a basin of cold water and immerse the wrapped thread in the water. After 12 hours, use a 500V megohm meter to measure insulation of not less than 50 megohms. Otherwise, it should be repackaged until the requirements are met.
The ground wire of the metal shredder must also be bound according to the requirements of the submarine cable connection process. After connecting the wires, continue to shake the insulation resistance while observing the changes to prevent the cable wall from damaging the cable insulation. If the insulation level drops below 0.5MΩ, it should be placed to detect the cause.