An extension board (also called a power strip or spike guard) expands a single wall outlet into multiple sockets, often integrating safety elements like surge protection.
How An Extension Board Works?
An electrical extension board connection works by routing three distinct wires (Phase/Live, Neutral, and Earth) to link switches, indicators, fuses, and sockets in a safe loop. The phase current flows to the sockets through individual switches, while the neutral and earth connections run parallel across all points