How to avoid burning out of the lead wire of a single-head electric heating tube?

The burnout of the lead wire of a single-head electric heating tube is usually caused by a variety of reasons. Here are some ways to avoid the burnout of the lead wire:
Choose a suitable electric heating tube
Power matching: According to the actual heating needs, choose a single-head electric heating tube with suitable power. Excessive power may cause current overload, causing the lead wire to heat up and burn out.
Quality assurance: Purchase a reliable quality electric heating tube to ensure that its lead wire is of excellent material, firmly welded, and has good conductivity and high temperature resistance.
Correctly install the electric heating tube
The lead wire is firmly connected: During installation, ensure that the lead wire of the electric heating tube is firmly connected to the power supply to avoid looseness. Loose connections will increase contact resistance, generate heat, and then burn out the lead wire.
Avoid damage to the lead wire: During installation, pay attention to protecting the lead wire to avoid it from being squeezed, stretched or worn by external forces. For example, do not let the lead wire come into contact with sharp objects, and do not bend the lead wire excessively.
Maintain an appropriate installation distance: The electric heating tube should maintain an appropriate distance from the heated object to avoid uneven heat transfer due to too close distance, causing local overheating of the electric heating tube and affecting the service life of the lead wire.
Reasonable use and maintenance
Avoid frequent start and stop: Try to reduce the frequent start and stop of the electric heating tube, because each time it starts, the current will be large, and frequent high current shocks can easily damage the lead wire.
Regular inspection: Regularly check the working status of the electric heating tube, including whether the lead wire has abnormal phenomena such as heating, discoloration, loosening, etc. If a problem is found, it should be stopped for inspection in time to avoid further deterioration of the problem.
Cleaning and maintenance: Keep the electric heating tube and its lead wire clean, and avoid the accumulation of dust, oil and other debris on its surface, which may affect heat dissipation and cause excessive temperature.
Optimize the working environment
Control the ambient temperature: Avoid the electric heating tube from working at an ambient temperature that is too high or too low. Excessive ambient temperature will make the heat dissipation condition of the electric heating tube worse, causing its overall temperature to rise and affect the performance of the lead wire; too low ambient temperature may make the lead wire brittle and easy to break.
Keep good ventilation: Ensure that the working place of the electric heating tube is well ventilated, which is conducive to heat dissipation, lower the temperature of the surrounding environment, and reduce the thermal impact on the lead wire.
Install protective devices
Overload protection: Install overload protection devices, such as fuses, thermal relays, etc. When the current in the circuit exceeds the set value, the protection device will automatically cut off the power supply to prevent the electric heating tube from damaging the lead due to overload.
Temperature protection: Install a temperature controller and set a reasonable temperature upper limit. When the temperature of the electric heating tube reaches the set upper limit, the temperature controller will automatically cut off the power supply to avoid burning the lead due to excessive temperature.