Flexible cords should be connected to what, to prevent pull from being transmitted to joints or terminal screws?

Flexible cords should be connected to both fittings and devices to prevent any pull from being transmitted to joints or terminal screws. This is important for maintaining the integrity of electrical connections and ensuring longevity in electrical installations.

When flexible cords are properly connected to fittings, they are secured in a manner that minimizes strain on the connections. This helps prevent the risk of wear and tear that could lead to loose connections or short circuits, which are potential safety hazards. Similarly, connecting flexible cords to devices, such as switches or outlets, allows for a secure and stable attachment that keeps the cords from being yanked or pulled, thus further protecting the equipment's internal components.

Therefore, the necessity of both fittings and devices in the connection of flexible cords emphasizes the importance of proper installation techniques in electrical work. By utilizing both types of connections, electricians can enhance safety and functionality in their work.