Final answer:
Electrical engineers or electricians review and approve high wattage appliances prior to use, ensuring they meet safety regulations and are properly wired.
Step-by-step explanation:
In the context of high wattage appliances, electrical engineers or electricians are responsible for reviewing and approving them prior to use.
These professionals ensure that the appliances meet safety regulations, are properly wired, and can handle the power load without causing any electrical issues or hazards.
For example, in the United States, the National Electrical Code (NEC) provides guidelines and standards for the installation of electrical systems, and the appliances must comply with these standards.