Abbreviations and Acronyms - Page 10

Hubbell Lighting Buyers Guide\ 9 — Technical

Abbreviations and Acronyms

A ampere lx lux AC alternating current m meter BF ballast factor mm millimeter CRI color rendering index MH metal halide CSA Canadian Standards Association MSHA Mine Safety and Health Administration DC direct currect MV mercury vapor FM Factory Mutual - United States NPF normal power factor ft foot NRTL Nationally Recognized Testing fc footcandle(s) NRTL/C Evaluated to both ANSI/UL and CSA standards by CSA HPF high power factor POMB position oriented mogul base HPS high pressure sodium UL Underwriters Laboratories kg kilogram(s) UV ultraviolet kW kilowatt V volt(s); Vdc—volts dc; Vac—volts ac kWh kilowatt-hour VA volt-ampere LDD luminaire dirt depreciation VCP visual comfort probability LLD lamp lumen depreciation W LLF light loss factor lm lumen Lp. lamp