Cutting machine needs strong power to ensure the stability of the work, because of the high voltage access, ground wire is an important link in the process of using, but often easy to overlook, bad ground may lead to leakage, lead to personal safety hidden trouble.
So how ground work?
ground preparation:
1, the grounding device must be 2 -
4 x1500 mm x35 degrees, with houses around any damp places, each a distance of 1 m, and then use the 3 x 30 mm flat iron guide rail joint every excavation, forming a good grounding network.
2, ground connection is complete, the ground resistance of the ground resistance is measured with instrument.
Standard resistance is 3 to 5 ohms.
3, shown below.
After measuring the resistance, the rvv2.
5 was copper wire at one end connected to the earthing network of pins, directly inserted into a socket to hole in the cutting machine equipment use.
installation steps:
1, first find a wet place in the home, 1.
5 square metre * 300 mm of soil surface, and then used to prepare point of earth, 2 x 30 mm flat iron with 7 mm hole welding connection or screw connection, causing the ground to 1.
The tomb of 8 meters high, soil net.
2, the use of measuring instrument measuring the grounding resistance of the network.
3, at the top of the iron to drill a hole 8 mm, file it around the hole, and then coated with a layer of the pituitary gland to tighten and flat iron wire.
4, lead wire user trough, the increase in the power grid a safe ground wire.
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