If you are designing a new system, buy IEC 81346-1 PDF . If you are maintaining or modifying an old system built before 2015, you need the original IEC 61346-1 document for reference.
refers to the hierarchy established to manage these objects. It defines how a system is divided into smaller subsystems, assemblies, and components. 3. Reference Designation System (RDS)
If you only need the (not the official text), many engineering handbooks and control system design guides summarize IEC 81346-1 clearly – but for compliance, buy the standard.
No, technically it is "withdrawn" but remains widely used in legacy documentation. The active standard is . iec 61346-1 pdf
Facilitates the use of computer-aided engineering tools. 5. From IEC 61346 to IEC 81346
Here's a story based on this standard:
A Reference Designation (RD) is built by combining these aspects with letter codes and numbers. A complete designation tells an engineer exactly what a component does, where it is, and what physical part it represents. The Structure of a Designation If you are designing a new system, buy IEC 81346-1 PDF
Organizations like DIN (Germany), BSI (UK), ANSI (USA), or DS (Denmark) sell localized adoptions of the standard.
Let us apply the rules from the to a real-world scenario: A water treatment facility.
Focused on what the object does (e.g., "=K1" for a specific control function). - It defines how a system is divided into
To provide a logical method for assigning unique identifiers (reference designations) to components, devices, or functions, enabling efficient documentation handling throughout the system life cycle.
However, the relevance of the IEC 61346-1 PDF persists. Many existing plants, offshore platforms, and factories still operate with documentation based on this standard. Engineers performing retrofits or maintenance on infrastructure built in the late 1990s and early 2000s must be fluent in reading the =, -, + notation established by 61346. Furthermore, the transition to IEC 81346 is evolutionary, not revolutionary; the foundational concepts of separating function, product, and location remain the industry standard for plant design.
The core of IEC 61346-1, as detailed in its PDF documentation, revolves around the definition of three distinct aspects, each serving a specific purpose in system description:
While many search results offer free downloads of "iec 61346-1 pdf," this standard is copyrighted by the IEC (International Electrotechnical Commission) and national bodies like ANSI, BSI, or DIN. Downloading pirated copies is illegal. This guide will direct you to legitimate sources for obtaining the PDF.