International Standard IEC /ISO 81346 series "Industrial systems, installations and equipment and industrial products – structuring principles and reference designations" [1] defines the rules for reference designation systems (RDS).

It makes it easy to add RDS-PS/ISO 81346 or KKS codes either one location at a time or in bulk. It also allows you to easily reuse data and templates with correct codes.

Die überarbeitete Fassung EN IEC 81346-2:2019 hat das Ziel, allgemeingültig jegliche Arten von Objekten in technischen Systemen klassizifieren zu können. Die Kennbuchstaben sind nun nach der inhärenten Funktion eines Objekts festgelegt.

1 Scope information document supplementary provides specified for structuring p in IEC 81346-1. structuring of including power supply structuring systems, of designations reference principles, designation and, where identifies objects in rules any system. and guidance are given for the formulation of unambiguous reference an object

ISO 81346 built in support in Master concept for RDS 81346 -10 and 81346 -12. Also support for KKS, IEC1355 and IEC 1082 and local variants.

In 2007, the VGB published a further development of the KKS classification system, named RDS-PP- Reference Designation System for Power Plants. It is based on the international standards IEC/DIN EN 81346 or ISO 16952 and IEC/PAS 62400.

The ISO/IEC 81346-10:2022, also called RDS-PS, stands for Power Systems and is a part-of series that provide rules and guidelines for developing reference designations for power systems used within the energy power supply sector.

IEC-ISO 81346-10 En vidareutveckling av beteckningssystemet för kraftverk som tidigare benämndes KKS. Det finns en internationell organisation förutom ISO-IEC som arbetar inom standardisering för kraftproduktion och som tidigare arbetat med KKS-standarden.

ISO 81346-10:2022 This document provides rules for structuring of systems in the domain of power supply systems, being supplementary to the general principles for the structuring of systems including structuring of information about systems specified in IEC 81346-1.

Owing to the national and international standardization process, the KKS Identification System for Power Stations (hereinafter referred to as “KKS”) is being replaced by the RDS-PP® Reference Designation System for Power Plants based on DIN ISO 81346-10.