SSH ETS 300 019-1-8:1997

Equipment Engineering (EE); Environmental conditions and environmental tests for telecommunications equipment; Part 1-8: Classification of environmental conditions; Stationary use at underground locations

Scope

The purpose of this sub-part of this standard is to define the classes of environmental conditions and their severities to which equipment may be exposed at specified locations below ground level. The severities specified are those which will have a low probability of being exceeded; generally less than 1 %. This sub-part applies to equipment installed for stationary use at underground locations during:
- normal operation;
- on site installation and lining up;
- repair, maintenance and restoration of functions failed.