After the pipeline heater is completed, the phenomenon of "false resistance" may appear. Therefore, it is recommended to check the resistance value after the electric heating tube is energized for 3 to 5 minutes. The result of this test is equivalent to the preset production resistance value.
In work and life, electric heaters are commonly used equipment, such as electric furnaces, electric soldering irons, electric irons, electric furnaces, etc. are all electric heating equipment. The resistance wire of the heater is nickel-chromium alloy, and the temperature can reach 800℃. Electric heaters are relatively large, so users do not pay attention to safety, and fires may occur at any time.
The reason for the fire of the wind guide electric heating pipe is as follows.
1. Put the charged electric heater on or near the combustible material, and burn it into a fire after a long period of high temperature.
Second, the electric heater is not equipped with a plug, and the wire is directly inserted into the socket, which is easy to cause a short circuit and cause a fire.
Third, people who use electric heaters do not unplug the electric heater when they leave. If the time is too long, the electric heater will catch fire, and adjacent combustibles will catch fire.
Fourth, if the resistor wire continues to be used after repeated maintenance, it will cause the circuit to overload and cause a fire. Pipeline electric heater is a kind of heat exchanger that uses heat exchanger to convert heat energy. It has the advantages of convenient energy supply, small size, automatic temperature control, convenient installation and maintenance, and no pollution.
