TS EN 81346-2

TS EN 81346-2 is the second part of the 81346 reference designation family for industrial systems, installations, equipment and industrial products, and it focuses on the classification of objects and the codes used for classes. In practical engineering terms, this subject is about giving different kinds of technical objects a consistent identification logic so that drawings, lists, databases and maintenance records can all refer to the same item in the same way.

How class codes support structured identification

As general technical context, reference designation systems help distinguish where an object sits in a larger technical arrangement and what kind of object it is. Class codes group objects into categories such as equipment types, subsystems or product families, using a shared classification method rather than ad hoc naming. This is especially valuable in complex industrial projects where electrical, mechanical and control documentation must remain aligned. A well-structured classification approach reduces ambiguity, improves traceability and makes it easier to compare related items across documents and disciplines.

What this standard listing represents

The title indicates that this publication addresses the classification of objects and codes for classes, but the exact clause content, tables and detailed code assignments are not verified here. The dependable takeaway is the standard’s role in establishing a common language for structured reference designations in industrial environments. It supports consistent documentation practices and helps engineers relate physical equipment, functional groups and product identifiers in a readable, orderly way. This TSE edition is withdrawn, so it is best understood as a technical reference document rather than an active current standard.

In general use, teams turn to this kind of vocabulary and structuring framework to:

• keep object naming consistent across drawings and schedules
• align codes used in design, operation and maintenance documentation
• distinguish between equipment, system and product-level entities
• reduce confusion in multi-discipline industrial projects