Lockout 14 : To lock a switch in the "off" position by means of a padlock, or to lock electrified equipment behind a locked door, to which only qualified persons have the key
US Department of Labor, OSHA Construction eTool: Glossary (General Construction: electrical Incidents, Falls, Struck-By, Trenching And Excavation) Occupational Safety & Health Administration OSHA, Washington, D.C., USA 2010. https://www.osha.gov/SLTC/etools/construction/glos sary.html, (OSHA/Gen Const - Amer) {615}