The electrical box body and the cover should be made of flame retardant material.
4.10 Designing the Electrical box process
First of all, calculate the car power. It then calculates the total electrical flow through the electrical box and the amount of electricity consumed by each appliance. According to the electricity consumption of each electrical appliance, determine the size of the insurance sheet. For the lamp class load, the insurance sheet is selected in the lamp nominal power flow of about 120%. For motor class load, first determine the braking current of the motor. Then, according to the braking current of the motor, determine the size of the insurance sheet. The capacity of the safety sheet is determined by 75% of the motor braking current. Attention! Our motor-type insurance advocates the use of "circuit breakers".
Design process for automotive electrical box