Earth and neutral wire, also known as lightning protection wire, refers to the wire used to introduce current into the earth; when electrical equipment leaks, current enters the earth through the earth and neutral wire. The symbol of the earth and neutral wire is E (Earth); it can be divided into two types: power supply earth and neutral wire and circuit earth ground wire. Simply put, an earth-neutral wire is a form of electrical protection. Its function is that when your electrical equipment leaks or is inductively charged, it can quickly introduce current into the earth through the grounding wire so that the equipment shell is no longer charged, thereby ensuring the safety of personnel and equipment.

The Role of the Earth and Neutral Wire

The purpose of the connecting earth wire is to avoid harm to the human body when leakage occurs; it leads electricity from potentially charged metal shells to the earth to prevent people from getting electric shocks. If it is not grounded, once the equipment leaks and a person touches a live object, an electric shock accident may occur. The electrical grounding wire is used to protect personal safety and prevent personal electric shock due to electrical leakage. Cannot protect against lightning.
There are two types of grounding for earth and neutral wires, namely system grounding and protective grounding. The task of system grounding is to establish a zero-potential reference point; the task of protective grounding is to protect personal safety. For protective grounding, its tasks are:
1. Provide a low-impedance connection between the equipment and the ground, thereby also reducing the risk of personal electric shock injury;
2. Provide a low-impedance path for ground fault current back to the power supply, allowing the fuse or circuit breaker to operate.

Earth Wire for Lighting Selection

In the power and electrical industry, high-voltage grounding wires are widely used. As an important barrier to protecting the lives of front-line maintenance workers, high-voltage grounding wires have always been known as the lifeline of power and electrical operators. The significance of the existence of high-voltage grounding wires is that it can prevent sudden calls from causing serious harm to workers who are working. Therefore, the performance and quality of high-voltage grounding wires are of great significance in actual operations.
However, there are many types of high-voltage grounding wires on the market, and their quality varies. People who do not understand the market can easily get confused. So, how do choose a suitable high-voltage earth and neutral wire?

Select the earth and neutral wire types as Needed

Generally speaking, grounding wires can be divided into two types: household and power-specific. In the case of home use, the voltage involved is mostly relatively low, and the requirements for grounding wires are not high. However, for power-specific grounding wires , it needs to be used under higher voltage conditions, and you need to choose carefully. High-voltage grounding wires are usually divided into power distribution room equipment connection wires and outdoor high-voltage line-dedicated grounding wires according to different use environments.
High-voltage lines are usually widely used in workplaces where high-voltage electricity is spread, such as high-voltage lines and towers. Especially when there is a power outage or line short-circuit, current can be directed into the ground at the same time to ensure the operational safety of workers. Therefore, when selecting a high-voltage earth and neutral wire, you need to select a suitable type based on the actual usage scenario.
For example, Jinneng Electric Power has launched different types and different voltage levels of high-voltage grounding wires based on different usage scenarios, such as substations, lines, cross arms, cable branch boxes, ring network cabinets, etc., which can meet the actual needs of different users and make their use more convenient.

Choose Performance Based on Material

The main components of the high-voltage grounding wire include operating rods with insulation properties, power clamps, grounding soft copper wires, terminals, grounding clamps, etc. The conductive performance of the high-voltage grounding wire mainly depends on the conductive performance of the wire core. If the conductive performance of the wire core is relatively weak, it will be difficult to provide the necessary protection for the life and safety of the operator.
The main raw materials commonly used in the market to manufacture high-voltage grounding wire cores are generally divided into three types: brass, red copper, and oxygen-free copper. Brass is mainly composed of 60% copper + 40% zinc. The electrical conductivity is relatively poor among the three wire cores. The copper wire is also relatively brittle, easy to break, and has a relatively short service life. The copper content of red copper generally reaches more than 99%, its electrical conductivity is much better than that of brass, and it is more resistant to use and wear. Of course, the cost of red copper is higher than that of brass.

Therefore, when purchasing high-voltage earth and neutral wires, we need to select the appropriate product type based on our own usage scenarios and select products with more stability and better performance based on the different materials of the wire core. Therefore, when purchasing high-voltage earth and neutral wires, we need to select the appropriate product type based on our own usage scenarios and select products with more stability and better performance based on the different materials of the wire core.

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