How to wire the arrester and need to be grounded?

If the arrester is not grounded, it will attract lightning and be dangerous.

The general practice is: dig a 1-2 meter pit, connect the arrester grounding wire to a copper plate, cover the mixture of industrial salt and coal, pour some water in a dry place, and then cover the soil.

Generally, flat iron is used for welding (there are also round iron) and buried in the ground. The lightning protection device must be grounded, and it is useless if it is not grounded.

It must be grounded, because the principle of lightning rod is original; It is to neutralize the charges in the atmosphere with the earth. As for grounding, the brother upstairs is quite right.

Lightning is caused by the accumulation of electric charges in the clouds of the sky to a certain extent, discharging to the ground, in the process of discharge, the huge energy will damage the objects on the discharge channel, which is lightning strike;

If people can set a "discharge channel", lightning discharges along this channel, it will not harm other equipment, so people invented the lightning rod, and the lightning rod is this discharge channel; Because the function of this channel is to connect "heaven and earth", the sky is impossible to connect, we just make a little higher, but the earth can be connected, and the protected objects are also on the earth, so the lightning rod must not only be grounded, but also must be grounded well. Lightning rod grounding requirements:

1. It should be higher than the device that needs to be protected.

2. Have good grounding.

3. The lead-out wire should be early enough to withstand large currents. The protected area of the lightning rod is the 45 60 ° umbrella area under the lightning rod. The higher the lightning rod is erected, the larger the extent of the protected area.

The installation of lightning rod must pay attention to its distance from the protected object should be greater than 5m, because the lightning rod and the lower lead can penetrate 2 3m of air by lightning induction.

This is because lightning protection grounding and equipment grounding are both grounding operations carried out to ensure the safe operation of equipment, and the grounding principle and method of both are the same. Moreover, connecting lightning protection grounding and equipment grounding together can reduce grounding resistance, improve grounding effect, and better protect equipment. Therefore, in some specific occasions, lightning protection grounding and equipment grounding can be connected together.

The difference between lightning protection grounding and equipment grounding:

Although lightning protection grounding and Kai Xibei grounding are both grounding, their actual use and operation methods are different.

Lightning protection grounding is mainly to prevent lightning strikes, reduce the potential difference between the ground and the equipment to a safe range, so as to protect the equipment from the hazards of lightning strikes. The grounding of equipment is to ensure the normal operation of equipment and reduce electrical faults caused by poor grounding.

In addition, the grounding resistance requirements for lightning protection grounding and equipment grounding are different. The grounding resistance requirements of lightning protection group Sun Shengdi are low, generally less than 10 ohms, while the grounding resistance requirements of equipment grounding are higher, generally less than 4 ohms.

The different uses and requirements of lightning protection grounding and equipment grounding determine that they cannot be used in confusion. In the actual project, the appropriate grounding method and grounding point should be selected according to the specific situation, and the operation should be carried out in strict accordance with the requirements of the specification. At the same time, the grounding resistance measurement and the maintenance of the grounding system should also be carried out regularly to ensure the safe and reliable operation of the grounding system.

Hello dear, there are four steps, as follows, 1. Before wiring, confirm the phase wire and the neutral line of the power supply, the general phase wire is the red line, the zero line is the blue line, and there is a grounding wire, generally the yellow wire. 2. Prepare an electrician screwdriver and loosen the screws of the "L", "N" and "PE" terminal holes on the power surge protector to facilitate access to the power supply cable. 3. Connect the phase wire of the power supply power line to the "L" terminal hole of the power surge protector, the neutral line of the power supply power line to the "N" terminal hole of the power surge protector, and the "PE" terminal hole of the power surge protector leads out the grounding wire and connects it to the lightning protection grounding bus or lightning protection grounding row.

4. Tighten the screws.

Summary. lightning rods, lightning cables and lightning arresters, etc.), which are used to eliminate or mitigate lightning hazards and damage to equipment caused by lightning to the earth. This type of grounding is protective grounding, because it belongs to lightning protection grounding.

Are lightning rods and lightning wires working grounding or protective grounding and why?

Hello, please wait.

lightning rods, lightning cables and lightning arresters, etc.), which are used to eliminate or mitigate lightning hazards and damage to equipment caused by lightning to the earth. This type of grounding is protective grounding, because it belongs to lightning protection grounding.

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Is it possible that the lightning rod and lightning cable are working grounding?

No, it's basically protective grounding.

OK. When the direct lightning grounding down conductor adopts the building structure steel bar, it must not share the down conductor with other grounding systems, so that the ground potential counterattack will occur, and the lightning damage equipment will be introduced by the grounding wire of each system. However, the ground grounding device can be shared, as long as the grounding point of the down conductor is staggered at a certain distance.

Dear, hello, I am very happy to serve you, can not be connected together, although both are introduced from the underground, but in the scope of action, there is a difference in the connection, the ground wire is connected to the three-hole socket foot hole, can be connected with the electrical shell, and the lightning protection wire is connected to the lightning rod installed on the roof, the lightning rod is connected to the grounding network below, if it is connected together, the lightning current will pass through the household appliances, causing damage, otherwise it will be directly leaked into the ground to eliminate. Hope mine is helpful to you.