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What should I do if the neutral line gets hot?


Customers often come to ask "What to do if the neutral line is hot?" Today we will talk about this issue together.

The neutral line is familiar to everyone. It is inseparable from the neutral line whether it is used in domestic electricity or industrial electricity. Although the neutral wire plays different roles in different lines, the reasons that affect the neutral wire's heating are basically the same. We will not go into details about the role of the neutral wire here.

If we want to solve the problem of hot neutral line, we must first know what are the causes of hot neutral line.

What causes the zero line to become hot?

  1. Line failure: When the neutral line is damaged, short-circuited, or has poor contact, the resistance will increase, and local overheating will occur when the current passes through, causing the neutral line to become hot.
  2. Line overload: When the total load of the electrical appliances connected to the line is too large, which is what we often call overload, the current will increase, causing the neutral line to heat up.
  3. Ground fault: If the neutral grounding system fails, the neutral line will be charged, causing the neutral line to become hot.
  4. Grid overvoltage: The voltage in the grid is not static. When overvoltage occurs in the grid, it may also cause the neutral line to heat up. Especially when the grid fluctuates due to lightning strikes or other external reasons, the heating phenomenon will be more obvious.
  5. Temperature is too high: If the ambient temperature around the neutral line is too high, the neutral line will also become hot. Continuous high temperature will accelerate the aging of the neutral line, causing the neutral line to heat up.

How to deal with zero line heating?

First of all, to ensure safety, cut off the power supply immediately and avoid touching the hot neutral wire.

Second, check whether the circuit is damaged or short-circuited. If there is a problem with the socket or wiring, contact a professional electrician immediately for repair. If there is a problem with the circuit itself, you should also contact a professional electrician for replacement or repair in time.

Third, if the neutral line is hot due to line overload, the total load in the line must be adjusted in time, or the neutral line must be replaced, but these are temporary solutions. The best method is to use a neutral current filter device to solve the problem of neutral wire heating caused by excessive load in one step.

Fourth, check the grounding system. If there is a problem with the grounding system, it must be replaced in time to ensure electrical safety.

Fifth, if the ambient temperature is too high, we can install a heat dissipation device to reduce the operating temperature of the neutral line to avoid excessive heating of the neutral line.

Electricity has always been known as the electric tiger. When you encounter a hot neutral line, you must check the cause in time, because a hot neutral line may pose certain safety risks and need to be handled with caution. And you must pay attention to safety when dealing with electrical-related problems, and be sure to ask a professional electrician to handle it, and don't be careless.

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