How to distinguish the performance of electric heating tube?

The electric heating tube is a tubular electric element, which is composed of spiral resistance wire of metal tube and crystal magnesia powder. When there is current passing through the high temperature resistance wire, the heat generated diffuses to the surface of the metal pipe through magnesia powder, and then passes to the heated part or air to achieve the purpose of heating. Performance has a great relationship with its quality and use. So, what are the performance of the electric heating tube, how much do you know? Let's look at the analysis below.

1. Insulation withstand voltage strength

The electric heating tube elements shall be kept for 1min under the specified test conditions and test voltage without flashover and breakdown.

2. Ability to withstand power on and off

The element shall be capable of going through 2000 on and off tests under the specified test conditions without damage.

3. Overload capacity

The electric heating tube element shall be subjected to 30 cycles overload test under the specified test conditions and input power without damage.

4. Heat resistance

The electric heating tube element shall withstand 1000 cycles of heat resistance test under the specified test conditions and test voltage without damage.

5. Heating time

Under the test voltage, the time from the ambient temperature to the test temperature shall not be more than 15min.

6. Rated power deviation

Under the condition of sufficient heating, the deviation of rated power of the element shall not exceed the range specified below.

For components rated power less than or equal to 100W: ± 10%. For the components with rated power greater than 100W, it is +5% ～ -10% or 10W, the larger of both.

In summary, these are several performance analysis of electric heating pipe. For good quality and flexible application, its performance has a great relationship.