ISO TS 81346-101:2025

ISO TS 81346-101:2025, which is a Technical Specification, provides guidelines for the understanding and application of the ISO 81346 and IEC 81346 reference designation system (RDS) for power supply systems (PS). It also specifies best practice for its use and implementation depending on the user and situation. The application of this document supports harmonization within and between the power supply technical domains and industries. It was developed in response to demands by the power supply sector for guidelines to the application of the ISO 81346 and IEC 81346 series, in particular ISO 81346-10.
The very basics of the RDS are not explained in this document. It is assumed that the user of this document already is familiar with the major concepts detailed in IEC 81346-1 and IEC 81346-2. These concepts include the four RDS aspects, the basic RDS semantics and basic RDS classification rules.
Introductory examples of the use of the RDS can be found in Annex A and Annex B. Annex C provides an example of a conversion table between an example structuring system and the classes specified in this document and other parts of the ISO 81346 and IEC 81346 series.
The target industries of this document, include but are not limited to: wind, photovoltaic, thermal, nuclear and hydropower production.