HD 478.3.4 S1:1989

Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities - Stationary use at non-weatherprotected locations

Scope

This part of the standard classifies groups of environmental parameters and their severities to which products are subjected when mounted for stationary use at locations which are non-weatherprotected - Locations which are non-weatherprotected where products may be mounted for stationary use permanently or temporarily include land-based and offshore locations - Use in and on vehicles is excepted - The environmental conditions specified in this standard are limited to those which may directly affect the performance of products - Only environmental conditions as such are considered - 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 - Any other unforeseen incidents are also excluded - The possibility of their occurence should be taken into account in special cases - Microclimate within a product is not included - Conditions of stationary use at weatherprotected locations portable and non-stationary use in vehicles and ships and conditions of storage and transportation are given in other parts of the standard