WG 5 - TC 120/WG 5

IEC 62933-5-2:2020 primarily describes safety aspects for people and, where appropriate, safety matters related to the surroundings and living beings for grid-connected energy storage systems where an electrochemical storage subsystem is used.

IEC TS 62933-5-1:2017 specifies safety considerations (e.g. hazards identification, risk assessment, risk mitigation) applicable to EES systems integrated with the electrical grid.
This document provides criteria to foster the safe application and use of electric energy storage systems of any type or size intended for grid-integrated applications