What is the method to prevent the temperature of the distribution box from being too high?

Methods to prevent overheating of the distribution box include:

Proper Ventilation: Make sure there is adequate space and ventilation around the distribution box to facilitate air circulation and heat dissipation. Avoid building clutter around the distribution box or blocking ventilation openings.

Temperature monitoring: Install temperature sensors or thermal appliances to monitor the temperature of the distribution box. When the temperature exceeds the set threshold, an alarm will be triggered or the power will be cut off automatically.

Load balancing: ensure circuit load balancing and avoid overloading of certain circuits to reduce excessive heat generation.

Regular maintenance: Regularly clean the dust and dirt in and around the distribution box to ensure the normal operation of the radiator and cooling fan. Check that wires and connectors are tight enough to reduce contact resistance and overheating problems.

Use the right distribution box: Make sure to choose a distribution box of the proper size and capacity that meets the load requirements of the circuit to ensure that the circuit can function properly without overloading it.

Note that handling of electrical distribution boxes should be performed by a qualified electrician to ensure safe operation and compliance with local electrical safety regulations.