DS DS/EN 81346-2
DS DSEN 81346-2 2009-OCT-14 ndustral systems nstallatons and equpment and ndustral products - Structurng prncples and reference desgnatons - Part 2 Classfcaton of objects and codes for classes
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This part of IEC 81346 defines classes and subclasses of objects based on a purpose- or task-related view on the objects, together with their associated letter codes to be used in reference designations. The classification is applicable for objects in all technical areas and can be used by all technical disciplines in any design process.