18 Mains electricity and the plug

18 Mains electricity and the plug

Electrical energy enters UK homes as mains electricity, supplied at 230V alternating current (a.c.). This standardized voltage and current type are crucial for powering a wide array of domestic appliances and lighting systems efficiently. Unlike direct current (d.c.), a.c. can be easily transformed to different voltages, making it highly efficient for long-distance transmission across the national grid.