What defines a ‘loop’ system in electrical installations?

A ‘loop’ system in electrical installations is defined by the configuration that allows several fittings or loads to be connected in a series or parallel manner from a single source circuit. This setup enables the same electrical feed to supply power to multiple devices, such as lights or sockets, while maintaining the integrity of the circuit.

This design is efficient as it reduces the need for extensive wiring by allowing multiple electrical outlets or fittings to operate from a single circuit run. This is particularly beneficial in residential and commercial installations where the distribution of power needs to be managed effectively. In a loop system, each fitting can be independently controlled or turned off, which enhances flexibility in lighting design and electrical layout.

The other choices do not accurately define a loop system. While the feeding of multiple circuits independently can be relevant in different contexts, it does not capture the essence of a loop system. Similarly, safety measures for disconnection and ground fault protection are important aspects of electrical safety but do not define the loop configuration itself.