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JSA - JIS C 4441

Electrical energy storage (EES) systems — Safety requirements for grid-integrated EES systems — Electrochemical-based systems

active, Most Current
Organization: JSA
Publication Date: 22 March 2021
Status: active
Page Count: 129
ICS Code (Environmental impact assessment): 13.020.30
ICS Code (Energy and heat transfer engineering in general): 27.010
scope:

This Standard provides safety requirements for battery energy storage system (BESS) which is a grid-connected electrical energy storage system where a battery-like electrochemical storage subsystem is used. It primarily describes safety aspects for people and, where appropriate, safety matters related to the surroundings and living beings.

Electrical energy storage (EES) system includes any type of grid-connected BESS which can both store electrical energy from a grid or any other source and provide electrical energy to a grid.

Unidirectional energy storages which only receive the supply of electrical power from a grid, such as UPS, are not included in the scope of this Standard.

This safety standard is applicable to the entire life cycle of BESS (from design to end of service life management).

This Standard provides further safety provisions that arise due to the use of an electrochemical storage subsystem in energy storage systems that are beyond the general safety considerations described in Annex JA to Annex JF.

This Standard specifies the safety requirements of an "electrochemical" energy storage system as a "system" to reduce the risk of harm or damage caused by the hazards of an electrochemical energy storage system due to interactions (e.g. chain of failures) between the subsystems (e.g. battery system and AC/DC converter) as presently understood.

NOTE 1 Types of grids are provided in JB.1.

NOTE 2 While the corresponding International Standard cites IEC TS 62933-5-1 : 2017 as one of its the normative references, this Standard has directly incorporated the contents of the said IEC in Annex JA to Annex JF and deleted its number from the normative references clause.

NOTE 3 The International Standard corresponding to this Standard and the symbol of degree of correspondence are as follows.

IEC 62933-5-2 : 2020 Electrical energy storage (EES) systems - Part 5-2 : Safety requirements for grid-integrated EES system - Electrochemical-based systems (MOD)

In addition, symbols which denote the degree of correspondence in the contents between the relevant International Standard and JIS are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISO/IEC Guide 21-1.

Document History

JIS C 4441
March 22, 2021
Electrical energy storage (EES) systems — Safety requirements for grid-integrated EES systems — Electrochemical-based systems
This Standard provides safety requirements for battery energy storage system (BESS) which is a grid-connected electrical energy storage system where a battery-like electrochemical storage subsystem...

References

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