What happens if the dry-burning electric heating tube keeps heating?

The dry-burning electric heating tube is used to heat the air. When its surface load is relatively small, its surface temperature is lower than the temperature resistance temperature of the tube material, and it can be heated all the time.

   However, when the surface load of the dry-burning electric heating tube is relatively large, and its surface temperature is greater than the temperature-resistant temperature of the tube material, it must be controlled by a temperature control instrument. When the temperature control probe detects that the surface temperature of the dry-burning electric heating tube reaches When the predetermined temperature is reached, the power supply of the dry-burning electric heating tube shall be disconnected and the heating shall be stopped. It is turned on again below the predetermined temperature.