electrical groundAn electrical connection between apparatus and the earth or an equivalent conducting body at zero potential. Electricity supply systems are grounded to avoid overvoltage and to improve performance. Metal cases, frames, etc., of electrical equipment are grounded to minimize risk of electric shocks in case a fault should make the exposed part "live." Related category• ELECTRICITY AND MAGNETISMSource: American Meteorological Society, Glossary Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History |