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prБДС EN IEC 62933-5-3:2023

Electrical energy storage (EES) systems - Part 5-3: Safety requirements for grid-integrated EES systems – Performing unplanned modification of electrochemical based system

General information

50.98     Sep 16, 2023

60.55    Oct 16, 2023



European Standard


Appropriate for SMEs


IEC 62933-5-3:2023 applies to those instances when a BESS undergoes unplanned modifications. Such modifications can involve one or more of the following:
- changes in energy storage capacity;
- changes of chemistries, design and manufacturer of the accumulation subsystem;
- changes of a subsystem component using non-OEM parts,
- changes to the mode of operation,
- changes of the installation site, or
- changes in an accumulation subsystem due to an installation of reused or repurposed batteries.
Any such modification can impair the original state of safety of the BESS.
This document complements IEC 62933-5-2, which relates to the overall safety aspects of a BESS. The requirements covered by this document are applied in addition to the requirements in IEC 62933-5-2 in accordance with each situation.

Life cycle


prБДС EN IEC 62933-5-3:2023
50.98 Project deleted
Sep 16, 2023

Related project

Adopted from FprEN IEC 62933-5-3:2023

Adopted from IEC 62933-5-3:2023 ED1