TS EN 61355

TS EN 61355 is the Turkish adoption of a standard that deals with how documents for plants, systems and equipment are classified and designated. In practical engineering terms, this provides a common way to identify, group and distinguish technical documents such as drawings, diagrams, lists, reports and other project records. This edition has been withdrawn, but it remains a relevant reference for understanding the structure of technical documentation and document control practice.

Why document classification matters

In general technical documentation practice, classification helps show what a document is for, what it relates to, and how it fits into the wider project. Large industrial installations can generate many document types for the same asset: operating instructions, maintenance records, circuit diagrams, layout drawings or test reports. A clear classification scheme supports retrieval, revision tracking and consistent terminology across engineering disciplines.

Plants, systems and equipment as document domains

These three terms describe different engineering levels. A plant is the broader installation, a system is an interconnected set of components performing a defined function, and equipment is an individual device or unit. Separating documents by these domains helps reduce confusion in electrical engineering, process industries and infrastructure projects. The focus of this standard is the organisation of document designation and classification; it should not be read as defining product tests, performance thresholds or acceptance criteria.

• Helps distinguish drawings, diagrams and lists as different document types.
• Supports consistent titles and reference designations.
• Aids revision control and archiving.
• Improves traceability of documents in multi-discipline projects.