What is the reason for the leakage of the electric heating pipe in the water tank

What is the reason for the leakage of the electric heating pipe in the water tank

Water tank electric heating pipes are widely used in various containers for heating water, such as water tanks, boilers, reactors, etc. But some people say that the electric heating tube for the water tank they bought will leak electricity when used, and the leakage protection will be turned on when connected. After technical testing and excluding other external factors, it was determined that there was leakage in the electric heating pipe of the water tank. So what is the reason for the leakage of the electric heating pipe in the water tank?

1, The newly purchased unused water tank electric heating tube has leakage

The newly purchased water tank electric heating tube tripped when it was installed and powered on, and there are several reasons that cause this situation.

1. The electric heating tube manufacturer did not completely remove the moisture from the magnesium powder in the heating tube during production, resulting in moisture inside the magnesium powder and loss of insulation performance. Therefore, the electric heating tube in the water tank may leak electricity.

2. When the resistance wire was inserted into the electric heating tube of the water tank, there was a deviation, causing the resistance wire to stick to the stainless steel pipe wall. In this case, electricity leakage may also occur when powered on.

3. When welding the terminal, it deviates from the center and may touch the pipe wall. Leakage may also occur when powered on.

Special note: Legitimate manufacturers of electric heating pipes for water tanks will conduct insulation and voltage resistance tests on the heating pipes before leaving the factory. This problem should not occur normally. When purchasing electric heating pipes for water tanks, it is necessary to find a reputable and professional manufacturer.

2, Leakage of electric heating pipes in used water tanks

When the electric heating pipe for the water tank was first used, it did not leak electricity, but after using it for a period of time, it leaked electricity. There are several reasons for this situation:

1. Poor water quality

The water quality heated by the electric heating tube in the water tank is dirty, and the water is harder and more prone to scaling. When the scale covers the surface of the tube, the heat cannot be dissipated. As a result, the surface of the heating tube cracks the tube wall due to high temperature, causing the electric heating tube in the water tank to leak electricity.

2. Wrong material selection

The water heated by the electric heating pipe in the water tank contains corrosive components, so it is necessary to choose a corrosion-resistant pipe material. If you still choose the material of the electric heating tube for heating ordinary tap water, there may not be any problems at first. After heating for a period of time and corrosion, small sand holes appear on the surface of the tube, and water immerses into the insulating magnesium oxide powder. At this time, the electric heating tube for the water tank will leak electricity.

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