Grounding standard, grounding standard

1. How to be grounded by the grounding wire.

You can find a 40 4 galvanized angle steel, use the galvanized angle steel to drive into the ground, the depth is about 1.5 meters, and then connect the ground wire to the angle steel to complete. The grounding wire is to connect the ground wire to the ground to be considered grounding, whether we are a commercial house or a rural homestead, we need to connect the ground wire to the ground to be considered grounding.

2. Precautions for grounding wire.

1. When we ground the wire, we must check whether the copper wire of the grounding wire is broken, and whether the screws are loose.

2. Before the grounding wire, the electricity must be checked first, if there is no electricity inspection, it is basically a violation, when the ground wire is hung to check the electricity, try not to contact with the body to prevent electricity from causing electric shock.

3. When we are grounding the wire, we must drive piles underground, and then connect the ground wire to the ground to be considered successful, and in this process, we must ensure the quality of the grounding wire.

4. In the process of wiring, we must not twist the wires at will, the wires that are not used should be coiled, and the excess wires can be cut off with special tools.

Good evening, dear, I am happy to answer the service for you, and the following are some common grounding wire standards for repentance: 1United States: The U.S. National Electrical Safety Code (NESC) stipulates that the ground wire should be connected to the neutral wire of the power system to ensure the safe operation of the electrical system.

2.Europe: The European Standard (EN) states that the grounding wire should be connected to the ground of the building to ensure the safe operation of the electrical system.

3.China: The Chinese National Standard (GB) stipulates that the grounding wire should be positively connected to the ground of the building, and the grounding resistance should be less than 4 ohms to ensure the safe operation of the electrical system.

Summary. The standards for the grounding wire are as follows: 1. If the voltage is above 36V or the insulation protective layer is damaged, the steel strip and iron wire of the metal frame, shell, and armored cable must be equipped with a protective grounding wire 2, the main grounding wire should be made of steel plate with high corrosion resistance, and its area should not be less than square meters, and the thickness should not be less than 5 mm 3, the resistance value of the grounding wire should not be greater than 2 ohms 4, The grounding busbar used to connect the main grounding wire should be made of soft copper wire with a cross-section of not less than 50 mm².

Pro, the standards of the grounding wire are as follows: 1. If the voltage is above 36V or the electrical equipment with the insulation protective layer is damaged, the steel strip and wire of the metal frame, shell, and armored cable must be equipped with a protective grounding wire 2. The main grounding wire should be made of steel plate with high corrosion resistance, and its area should not be less than square meters, and the thickness should not be less than 5 mm 3, the resistance value of the grounding wire should not be greater than 2 ohms 4, The bridal bus used to connect the main grounding wire should be made of soft copper wire with a cross-section of not less than 50 square millimeters.

The grounding wire has the following functions: 1. The grounding base wire can increase the safety factor, because when the electrostatic discharge occurs, a large amount of charge will be generated, and the damage to the human body is relatively large, so it can prevent it from being damaged by the charge 2.

Summary. Kiss <>

It is a great honor to answer for you The standards for grounding wires are: 1) The grounding bus connecting the main grounding electrode should be copper wire with a cross-section of not less than 50mm2, or a galvanized iron wire with a cross-section of not less than 100 mm2, or a flat steel with a thickness of not less than 4mm and a cross-section of not less than 100 mm2. 2) The connection between the shell of the electrical equipment and the grounding bus or local grounding electrode shall be copper wire with a cross-section of not less than 25 mm2, or a galvanized iron wire with a cross-section of not less than 50mm2, or a flat steel with a thickness of not less than 4mm and a cross-section of not less than 50mm2.

3) The connection of the main grounding electrode of the grounding bus should be welded, and when there is no condition, the connection can be tightened with galvanized bolts with a diameter of not less than 10 mm and an anti-loosening device.

The standard of the grounding wire.

Kiss <>

It is a great honor to answer the standards of the grounding wire for you: 1) The grounding bus connecting the main grounding electrode should be made of copper leakage wire with a cross-section of not less than 50mm2, or a galvanized iron wire with a cross-section of not less than 100 mm2, or a flat steel with a thickness of not less than 4mm and a cross-section of not less than 100 mm2. 2) The connection between the shell of the electric shirt gas loss equipment and the grounding bus or local grounding electrode shall be copper wire with a cross-section of not less than 25 mm2, or a galvanized iron wire with a cross-section of not less than 50mm2, or a flat steel with a thickness of not less than 4mm and a cross-section of not less than 50mm2.

3) The connection of the main grounding electrode of the grounding bus should be welded, and when there is no condition, the connection can be tightened with galvanized bolts with a diameter of not less than 10 mm and an anti-loosening device.

Related extensions: The grounding wire is a line that directly connects to the earth, which can also be called a safety loop, and when it is dangerous, it directly transfers the high voltage to the earth, which is a lifeline. Due to the poor insulation performance of household appliances or the humid use environment, the shell of the household appliances will have a certain amount of static electricity, and in serious cases, electric shock accidents will occur.

In order to avoid accidents, you can connect a wire to the metal shell of the electrical appliance, and connect the other end of the wire to the earth. In addition, when electrical maintenance personnel use the electric soldering iron to solder the circuit, sometimes because the electric soldering iron is charged and the integrated circuit in the electrical appliance is damaged, this is more important. Friends who use computers sometimes ignore the grounding of the main chassis, in fact, the grounding of the main chassis of the computer can prevent the occurrence of crashes to a certain extent.

Grounding wires in the power system: It is an important tool to guarantee workers in the event of an unexpected voltage on equipment and lines that have been powered out. According to the ministry, the grounding wire must be made of bare copper flexible wire of more than 25mm2.