Exposed 1 : (As applied to live parts.) Capable of being inadvertently touched or approached nearer than a safe distance by a person. It is applied to parts not suitably guarded, isolated, or insulated. (See "Accessible." and "Concealed.")
Department of Energy AREA SAFT, DOE Handbook, Electrical Safety (Appendix B), Acronyms and Definitions, DOE-HDBK-1092-98, D.C. 20585, USA 1998. http://energy.gov/sites/prod/files/2013/07/f2/hdbk 1092.pdf, (Electr Sfty - Amer) {43}