Hello everyone, welcome to the ZimZimDiy channel. Today, I will explain about the topic of ground and neutral. What is the difference? Why does the electricity authority have to force them to jump to each other? First of all, I would like my friends to understand the concept of electricity in the same direction. There are three characteristics as follows: 1. Electricity will flow through the circuit only when it is completely connected. If we touch the Line wire, we may complete the circuit. 2. Electricity will always try to return to its source. 3. Electricity will flow in all possible paths to complete the circuit and choose the path with the lowest resistance. Therefore, the current will flow in that path more than the other paths. So what is the ground wire for? The main purpose of the ground wire is to prevent danger from leakage current. Because the ground wire in normal conditions will not have current flowing through it. But in the case of a mistake, the Line wire is gnawed by a mouse to see the copper. If you are unlucky and touch the frame, the ground wire will conduct the current. We will call it an electric shock or a short circuit. That is, the electricity does not flow through the load. But it is a short circuit. The breaker will feel it and cut off the power immediately. We will not get an electric shock. The ground wire is a copper wire covered with green insulation. It can be called a shortcut for electricity to flow back to the power source instead of through our body because it has low resistance. Therefore, electricity chooses to flow through this path because it is easier and returns faster. So, electrical appliances with a ground and plugs with a ground slot are considered safe. I can tell you that it is not always certain. If you do not wear shoes and one day you accidentally poke the plug with a screwdriver and accidentally touch the Line wire, you can also get an electric shock. Because the circuit is complete. Ask why the breaker does not cut off? Because we still have resistance. The electric current may shock us, but the current is not very high. But the current can still kill us. Because general breakers do not cut off for us. They only see if the current flows beyond the value that they will cut off. By then, we will be burnt. This is one of the reasons that people die. We often encounter this type of incident. We call this type of case an electric leak. But fortunately, technology has developed a lot. There are some breakers that can prevent electric leakage or electric shock. Which will cut off the power when the electric current flows back. Not equal to the output current Or simply put, these two wires are not equal, it indicates a current leakage. The breaker is very smart. It knows and quickly cuts off the work. Normally, the general standard that is seen will check for leakage current at around 30 mA and then cut off the work. It can be said that it has already cut off the work before getting shocked, which will make us safe. Anyway, try to look at your friends' houses. Do you have a leakage-proof breaker or not? As you know, at present, the Electricity Generating Authority of Thailand requires the ground rod to be driven into the ground inside the house at least 2.4M deep. The ground rod will be connected to the ground bar. This ground rod is not for the leaking line electricity to go down. The real purpose is to distribute high voltage electricity, such as lightning. We will distribute the electricity to the ground. In addition, there is also a ground rod of the transformer that helps distribute it to the ground in another place. Information from the Internet: The Engineering Mindset #What is the difference between a worm and a neutral? #Why do we have to jump G and N together?