What is the purpose of fuses installed in a switchbox?

Fuses installed in a switchbox serve the critical purpose of preventing overload of wires. When electrical current exceeds the safe threshold due to issues like short circuits or excessive load, the fuse is designed to melt and break the circuit. This action protects the wiring and attached devices from overheating, which could lead to electrical fires or damage.

Understanding this function is vital in maintenance work, as it ensures safety and proper operation within the park's electrical systems. This protective mechanism is fundamental to electrical safety standards and is a key reason why fuses are utilized in various installations. In contrast, while other choices mention aspects like power output, circuit functionality, and connecting devices, they do not pertain directly to the primary safety function that fuses provide in preventing electrical overloads.