1. The fastening wiring force should be moderate, avoid sliding the bolts and nuts with excessive force, and replace the bolts and nuts that have been slid in time, and prohibit the operation.
2. When tightening or loosening the screws with a screwdriver, it is necessary to force the screwdriver to hold up the screws, and then tighten or loosen them to avoid the screwdriver and the screws slipping, resulting in screw damage that is not easy to disassemble and assemble, especially the common empty opening in the hanging box.
3. If you find bolts and nuts that are difficult to disassemble, do not act recklessly to avoid deformation and more difficult to disassemble, you should give a proper hit, or add screw loosening agent, dilute hydrochloric acid, etc.
4. Do not use vise to tighten or loosen the bolts and nuts to prevent damage, and adjust the opening when using a live wrench to avoid damage and deformation of the bolts and nuts, which is not easy to disassemble and assemble.
5. The same terminal is promised to connect up to two wires of the same type and standard.
6. For terminals that are easy to loose or easy to touch, it is necessary for wire joints to start with "? It is fastened to the terminal block to increase the touch area and avoid loosening.
7. When the wire joints or wire noses are connected to each other, it is forbidden to install non-copper or gaskets with poor conductivity in the middle.
8. When the wire joint is connected, the touch surface is required to be lubricated and there is no oxidation, and when the wiring nose or copper bar is connected, the conductive paste can be changed after the touch surface is cleaned and then fastened.
9. When connecting the temporary wire, half of the terminal head of a single wire is required to be connected to the soft wire, and then it is connected to the empty opening of the lower port; Single-core hard wire should be "? The type is connected to the empty open lower mouth.
10. For the wiring of 30KW and above motors, it is required that the gaskets with poor conductivity should not be crossed between the motor outlet and the cable wires connecting the motors, such as galvanized nuts, flat washers, spring gaskets, etc.
11. When using insulating tape to wrap around cables or other equipment to protect insulation, the insulation layer should be surrounded from one end to the other end by pressing 1/2 share, and at least one back and forth.
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(2) Secret ...
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Uses and characteristics of busbar systems – Wienal
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VDE 0660 Specification Section 107 / EN 60947-3 Specification / IEC 60947-3 Specification
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