What type of wire is allowable in the wiring method shown for feeding power into the box in the flexible setup?

In electrical installations involving flexible setups, the type of wiring method can significantly impact the effectiveness and safety of the system. When considering how to properly feed power into a junction box in a flexible setup, it's essential to recognize the role of wire connectors.

Using straight connectors allows for a more direct and efficient path for the electrical current, minimizing resistance and potential points of failure that can occur at bends or angles. Straight connectors create a clean and straightforward connection, ensuring that the wires are aligned properly without any unnecessary stress or strain that could occur with angles. This is particularly important in flexible installations where the ability to move or adjust the configuration is necessary.

In contrast, flex connectors of any angle, while they offer some versatility, can introduce complications with wire alignment and stability. They may also create opportunities for wear and damage over time if the installation is frequently moved or adjusted. The limitations of angled connectors make them less favorable for feeding power into junction boxes compared to utilizing straight connectors.

Therefore, in this context of flexible setups, relying solely on straight connectors is the correct choice for ensuring a robust and effective electrical connection.