According to branch-circuit wiring requirements, where are boxes generally required?

In electrical wiring, boxes are essential for organizing and securing connections and devices, as well as ensuring safety within branch circuits. The requirement for boxes arises from the need to provide accessible locations for connections, whether those connections occur at receptacles, switches, or splices.

When it comes to receptacle points, boxes are necessary to mount the receptacles securely and provide a safe enclosure for the wiring connections. Similarly, at switch points, a box allows for the safe installation and securing of switches, making it easier for electrical maintenance or replacement. For conductor splices, boxes are also required to house the connections safely and to protect them from damage and prevent electrical hazards.

Thus, boxes are not limited to one type of connection point, but rather are required at all these critical locations to adhere to safety standards and ensure the integrity of the electrical system. This comprehensive approach enhances safety and compliance with electrical codes, which is why the correct response acknowledges the necessity of boxes at each of these points.