A conducting connection which may or may not be intentional between an electrical circuit or equipment and the earth, can be via some conducting body that leads to the earth. [energy, electrical]
CoTradeCo Glossary of Critical Industrial Safety Terms and Other Important Words, Abbreviations and Acronyms, La Quinta, CA., USA 2010. https://cotradeco.com/pages/52-glossary-of-critica l-terms-abbreviations-ratings-regulations, (IndS - Amer) {36}