SN EN 60721-3-4:1995现行
Classification Of Environmental Conditions - Part 3: Classification Of Groups Of Environmental Parameters And Their Severities - Section 4: Stationary Use At Non-weatherprotected Locations
出版：Swiss Standards
专家解读视频
Specifies groups of environmental parameters and their severities to which products are subjected when mounted for stationary use at locations which are non-weatherprotected. Limited to those which may directly affect the performance of products. No special description of the effects of these conditions on the products is given. Environmental conditions directly related to fire or explosion hazards and conditions related to ionizing radiation are excluded. Microclimate within a product is not included.
DIN EN 60721-3-4 (1995-09) - Identical
UNE EN 60721-3-4:1997 - Identical
SS EN 60721-3-4:2001 - Identical
I.S. EN 60721-3-4:1997 - Identical
IEC 60721-3-4 Ed. 2.0 - Identical
BS EN 60721-3-4:1995 - Identical
