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International Standard IEC/ISO 81346 series "Industrial systems, installations and equipment and industrial products – structuring principles and reference designations" defines the rules for reference designation systems (RDS). It is published as a double logo standard prepared by IEC technical committee 3: Information structures and elements, identification and marking principles, documentation and graphical symbols, in cooperation with ISO technical committee 10: Technical product documentation. The 81346 series replaces the deprecated IEC 61346:1996.

Contents

• Part 1: Basic rules (IEC 81346-1:2022)
• Part 2: Classification of objects and codes for classes (IEC 81346-2:2019)
• Part 10: Power supply systems (ISO/IEC 81346-10:2022)
• Part 12: Construction works (ISO/IEC 81346-12:2018)

Double Logo Standards

Future developments of the standards on reference designations will be made in cooperation between the IEC and the ISO and published as IEC 81346. (Standards developed in cooperation between IEC and ISO are assigned numbers in the 80000 series)

Outline

The standard consists of two parts and two supplements:

• EN 81346-1: General rules (IEC 81346-1:2009)
• EN 81346-2: Classification of objects and coding of classes (IEC 81346-2:2020-10)

The supplementary sheets for application guidelines (IEC/TR 61346-3:2001) and considerations of terms and their relationships (IEC 61346-4:1998) for DIN EN 61346 were withdrawn in May 2010 without replacement.

They are translations of the International Standard IEC 81346 published by the IEC. In 1997 the IEC changed the numbering of the IEC publications and added 60000 to the standard numbers used up to 1997. For example, IEC 61346 from 1996 was published under the number IEC 1346 but was listed under IEC 61346.

From 2010, the standards for reference marking will be published as a joint IEC/ ISO standard in the 80000 number range and then published under the number 81346.

Preceding Standard

Preceding standard IEC 61346:1996 has been withdrawn and is replaced by IEC/ISO 81346.

RDS-CW

81346-12 is also known as RDS-CW (Reference Designation System for Construction Works). It is maintained by ISO Working Group ISO/TC10/SC10/WG10 responsible for Reference Designation within ISO Process Plant Documentation sub committee SC10. RDS-CW has been designed as an international classification system that can be used by BIM allowing for the prospect of integrating classification systems for construction works with classification systems for the Power sector.

RDS-PS

81346-10 also known as RDS-PS (Reference Designation System for Power Supply Systems). is maintained by ISO/IEC Joint Working Group ISO/TC10/SC10/JWG10. The latest version 81346-10:2022 is published as a full International Standard, and replaces the previous Technical Specification ISO/TS 81346-10:2015. Upgrading form TS to IS implies greater maturity and more scrutiny in the development of the standard.

Supporting 81346-10:2022 is a planned supplementary document. 81346-101 "Modelling concepts and guidelines for power supply systems" is a proposed TS (Technical Specification) currently in committee stage of development.

RDS-MS

81346-14 known as RDS-MS (Reference Designation System for Manufacturing Systems) is an approved proposal in early development currently at the Committee Draft stage (CD-stage) within ISO/TC 10/SC 10/JWG 10. Its full title will be "ISO 81346-14 Industrial systems, installations and equipment and industrial products —Structuring principles and reference designations — Part 14: Manufacturing systems".

Proposed Additions

• Part 20: 81346-20: Aircraft systems

See also

• Reference designator
• Functional specification
• List of IEC standards

References

1. "The Reference Designation System (RDS) A common naming convention" (PDF). Archived from the original (PDF) on 2020-08-01.
2. "IEC TC3".
3. "IEC 81346-1:2022 Abstract ISO Webstore".
4. "IEC 81346-2 Abstract".
5. "IEC 81346-2:2019 Abstract IEC Webstore".
6. "ISO/TS 81346-10:2022 Abstract ISO Webstore".
7. "ISO/TS 81346-10:2022 Abstract IEC Webstore".
8. "IEC 81346-12:2018 Abstract".
9. "Danish Standards Handbook. A guide to RDS - reference designation systems" (PDF).
10. "ISO Subcommittee ISO/TC10/SC10". 24 January 2006.
11. "Molio Construction Information Centre" (PDF).
12. "BIM Blog Comparing Classification Systems". 21 May 2019.
13. "ISO 81346-10:2022".
14. "ISO Subcommittee ISO/TC10/SC10". 24 January 2006.
15. "ISO Technical Specification".
16. "ISO/CD TS 81346-101".
17. "IEC/CD 81346-14".
18. "Industrial systems, installations and equipment and industrial products — Structuring principles and reference designations Part 20: Aircraft system".

External links

• "IEC 61346-1", "IEC 61346-2", "IEC 61346-3" at International Electrotechnical Commission
• Dansk Standards Handbook 166 UK 2016-12-01

• IEC standards