If a 1500VA Signage is to be added, which circuit can it connect to?

When determining the suitable circuit for a 1500VA Signage, one must consider the capacity and purpose of each circuit. The correct choice is Circuit 7, which has a capacity of 3000VA specifically designated for signage.

This option is correct because it has sufficient available power to accommodate the 1500VA requirement without exceeding the circuit's capacity. Moreover, it is specifically tailored for signage applications, ensuring that it is appropriately rated for the operational demands such a load would impose.

The other circuits listed do not accommodate the added load as effectively:

• Circuit 2 has a maximum capacity of 256VA, which is far lower than the 1500VA needed.

• Circuit 3 at 500VA also cannot support the additional load, as it would lead to overloading the circuit.

• Circuit 13 is marked as a spare with a 20A rating, but without additional information on its voltage and setup, it may not guarantee that it can safely handle the added signage load either, particularly considering the specificity required for such installations.

In this context, choosing Circuit 7 ensures both safety and compliance with electrical standards relevant to signage installations.