Vacuum pump connection operation of the unit

before using a vacuum pump unit, just take out the cable. When installation, you need to reconnect the cable. But, when connecting cable, must pay attention to the correct method. Otherwise, it will have a great influence for the use of vacuum water pump device. Everyone services for everyone explain vacuum pump device connection method:

when the vacuum water pump unit wiring, must use the polyester insulating tape. Packaging, be sure to according to the first half of the circle, 8 - and package 12 layer. After package, using plastic tape wrapped two layers in order to increase strength. When the vacuum pump unit wiring, cable about 30 - the copper stripping 35 mm long. With abrasive cloth to wipe copper wire, strip copper wire. External copper wire stripping also 30 - three core cable 35 mm, with a cloth to wipe clean.

insert the vacuum pump unit connection wire part of the three core cable stripping external cable, and then use fine copper wire strapping, cutting the remainder, pressing with scissors, in order to prevent the bound hands; At the same time, the three end of the vacuum pump should be separated from welding, the welding surface should be smooth, no burr and false welding. To ensure that no welding or uneven, please welding, vacuum pump again until they meet the requirements.

for vacuum pump unit wiring, three thread must use two layers of plastic bag together with package. At the end of the first layer in each wire insulation layer above more than 50 mm, outside of the second layer at the end of the first layer of 50 mm. Fetch a basin of cold water, the cloaked thrum safely into the water. After 12 hours, with 500 v megohmmeter measuring insulation is not less than 50 ohms. Otherwise, it should be, until meet the requirements.

grounding line of vacuum pump unit also must according to the submersible cable wiring process; After connection vacuum pump unit, should be in continuous measuring insulation resistance, when drilling to see change, prevent damage of cable wall cable insulation. When fall below 0. 5 megohm must start device to detect the reason.

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