1. When wrapping with polyester insulating tape, it is necessary to press half of the first circle, wrap 8-12 layers. After wrapping with water ring vacuum pump, wrap two layers with plastic tape for strength.
2. Strip the copper core of the cable on the water ring vacuum pump about 30-35mm long, and wipe the copper wire with abrasive cloth to make it bright. Similarly, strip the copper wire of the external three-core cable 30-35mm, and wipe it with abrasive cloth.
3. Insert the three core cable and the stripped copper wire part of the external cable in pairs, then bind and tie with a thin copper wire as shown in the figure, cut off the remaining part, and press flat with scissors to prevent tying.
4. The three wire ends shall be firmly welded with solder respectively, and the surface of the solder joint shall be smooth without burr and false welding. If the welding is not firm or smooth, the water ring vacuum pump shall be re welded until the requirements are met.
5. Wrap three wires together with plastic tape and bind two layers. The first layer shall be more than 50mm over the end of each conductor insulation layer and the second layer shall be more than 50mm over the end of the first layer.
6. After binding, take a basin of cold water to soak the wrapped thread in water safely. After 12 hours, use a 500V megohmmeter to measure the insulation not less than 50 megohm. Otherwise, bind it again until it meets the requirements.
7. The grounding wire of the water ring vacuum pump shall also be wrapped according to the wiring process requirements of the submersible cable.
Dry Type Oilless Vacuum Pumps
Liquid Ring Vacuum compressor
industrial vacuum pumps,vacuum furnaces
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