Final answer:
The appropriate size of overcurrent protection for commercial infrared heating equipment should be selected based on the equipment's specific power requirements but should not go beyond 80% of the breaker's rated capacity for continuous use. Residential circuit breakers typically range from 10 to 30 amperes.
Step-by-step explanation:
The largest overcurrent protection for a commercial infrared lamp heating utilization equipment would depend on the specific load the equipment is rated for. Comparing with general circuit breaker ratings for residential use, which typically range from 10 to 30 amperes for common household appliances, and considering information on overcurrent protection devices, they are designed to operate at no more than 80% of their rated current capacity under continuous use.
Therefore, taking into account the fact that safety regulations limit continuous use to 80% of the breaker current capacity, one would choose the overcurrent protection device that fits within the requirements of the particular heating equipment. Since most domestic heating appliances do not exceed 1,500 watts of power consumption, the rating of the protection device should be closely matched to the needs of the particular appliance to ensure both safety and functionality.