ETS 300 019-1-4 Ed.1 (1992)現行
Environmental Engineering (EE); Environmental conditions and environmental tests for telecommunications equipment; Part 1-4: Classification of environmental conditions; Stationary use at non-weatherprotected locations
出版：European Telecommunications Standards Institute
專家解讀視頻
Defines a class of environmental conditions and their severities to which equipment may be exposed. Includes only severe conditions that may be harmful to the equipment. Applies to equipment mounted for stationary use including periods of erection work, down time, maintenance and repair at non-weatherprotected locations.
ONORM ETS 300019-1-4:1998 - Identical
DIN ETS 300019-1-4 (1993-02) - Identical
NBN ETS 300 019 1-4:1993 - Identical
NS ETS 300 019-1-4:1998 - Similar
PN ETS 300 019-1-4:2005 - Identical
SS ETS 300 019-1-4:1992 - Identical
