In what way should flexible cords not be used?

The correct answer highlights that flexible cords should not be run through walls, hidden in ceilings, or installed in conduits due to safety regulations and potential hazards. Flexible cords are designed to be used as temporary wiring for portable devices and should not be utilized in permanent electrical installations. When cords are run through walls or other structures, it can create risks such as overheating, as they may not dissipate heat effectively. Additionally, these practices can lead to damage of the cords which might not be easily detectable, increasing the likelihood of electrical failures or fire hazards.

This understanding underscores the importance of adhering to electrical codes that dictate how electrical wiring should be installed and maintained. Maintaining the integrity of flexible cords and ensuring they are used in their intended manner is essential for minimizing risk in construction and workplace environments.