What is the recommended practice for using extension cords in electrical work?

Using extension cords rated for the load and inspecting them regularly is essential for maintaining safety during electrical work. Extension cords are designed to carry a specific amount of electrical current, and using a cord that is not rated for the load can lead to overheating, which increases the risk of fires or electrical hazards.

Regular inspections help to identify any damage, such as fraying or exposed wires, that could compromise the integrity of the cord and pose safety risks. This practice of ensuring both proper rating and condition not only protects the equipment being powered but also ensures the safety of the users.

The other options do not provide adequate guidance for safe practices. Using any available cord, regardless of its specifications, can lead to dangerous situations where the cord cannot handle the electrical load. Limiting the use of extension cords to outdoor environments ignores their designed functionality for indoor use and other appropriate situations. Leaving cords unplugged when not in use, while a good practice, does not address the critical need for proper rating and regular inspection, both of which are key to preventing accidents and ensuring safe electrical work.