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JSA - JIS C 4412

Safety requirements for electric energy storage equipment

active, Most Current
Organization: JSA
Publication Date: 22 November 2021
Status: active
Page Count: 69
ICS Code (Rectifiers. Converters. Stabilized power supply): 29.200
scope:

This Standard specifies the safety requirements for equipment of low voltage energy storage systems provided with an integral or separate storage battery (hereafter referred to as the energy storage system).

This Standard covers the energy storage systems used for supplying backup power to loading apparatuses in equipment in the event of the equipment having a power failure, for peak shaving and peak load shifting (for using charged power at a peak period), for virtual power plant (VPP), for demand response, etc.

This Standard is used together with JIS C 62477-1 : 2017. In applying the cited parts of JIS C 62477-1 : 2017 in this Standard, the term "PECS" shall be replaced with "energy storage system". For Annex A, Annex D, Annex H and Annex N of this Standard, the respective corresponding annexes of JIS C 62477-1 : 2017 shall apply.

This Standard covers either of the following.

Stand-alone system of AC input voltage of 600 V or less or DC input voltage of 750 V or less which receives power from a low-voltage distribution system and supplies power from an output terminal or socket outlet.

Grid connection system of AC output voltage of 600 V or less or DC input/output voltage of 750 V or less which supplies power through the wiring of equipment via a distribution board by connecting a low-voltage distribution system

However, this Standard does not specify requirements concerning grid connection protection function.

This Standard does not cover uninterruptible power supply systems, which fall under the scope of JIS C 4411 (all parts).

NOTE 1 The discharge time of an energy storage system is not specified as it depends on the capacity and number of loading apparatuses to be connected, as well as on the degree of aged deterioration of the storage battery. Similarly, the capacity of an energy storage system is not specified because it depends on the loading apparatus to be connected by the manufacturer.

NOTE 2 Some systems of energy storage system require reconnecting of plugs in the event of power failure.

NOTE 3 For the requirements for grid connection protection functions and equipment, it is necessary to apply the criteria and standards concerning grid connection protection functions and/or wiring rules.

NOTE 4 The International Standard corresponding to this Standard and the symbol of degree of correspondence are as follows.

IEC 62909-1 : 2017 Bi-directional grid-connected power converters - Part 1 : General requirements (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 4412
November 22, 2021
Safety requirements for electric energy storage equipment
This Standard specifies the safety requirements for equipment of low voltage energy storage systems provided with an integral or separate storage battery (hereafter referred to as the energy storage...

References

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