LST ETS 301 019-1-4-2002 Equipment engineering (EE); Environmental conditions for telecommunications equipment; Part 1-4: Classifications of environmental conditions; Stationary use at non - weather protected locations
2002LST ETS 301 019-1-4-2002 Equipment engineering (EE); Environmental conditions for telecommunications equipment; Part 1-4: Classifications of environmental conditions; Stationary use at non - weather protected locations