Methods and standards of grounding wire

Installation form: There are two types of indoor wire installation: open installation and concealed installation. Exposed installation is laid along walls, ceiling surfaces, trusses, house columns, etc. When the home is exposed and installed by itself, the wires must not be excessively squeezed and folded, and the fixation must be firm. The concealed installation is laid on walls, ceilings and other places, but it must be operated by professionals.

Connection mode: When laying wires, try to avoid the joint, because it is easy to produce large resistance at the joint, which will lead to fever. If you really need a joint, you should use the correct method and wrap the joint with insulating tape.

Matters needing attention of grounding wire

The grounding wire shall not be twisted during use, so as not to damage the insulation sheath of the soft copper wire.

It is forbidden to connect the grounding wire with the winding, because the poor contact will burn out prematurely due to overheating when passing through the short-circuit current, and the contact resistance is large, so it will increase the voltage drop of the maintenance equipment when passing through the short-circuit current, which is very dangerous. Therefore, the short route part must be fixed or firmly contacted with the conductor with intact special wire clamps, and fixed on the grounding body with special wire clamps at the same time.

When installing the grounding wire, the human body shall not touch the grounding wire or the ungrounded wire to prevent electric shock.

Refer to Baidu Encyclopedia-Grounding Wire for the above contents.