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IEC/EN 62477-1 is a safety standard for energy storage battery systems, which includes provisions on the safety performance and requirements of energy storage battery systems. This standard mainly focuses on the electrical safety of energy storage battery systems.

IEC/EN 62477 is a general safety standard for power electronic converter equipment and systems, mainly involving requirements such as protection against electric shock, protection against energy, fire prevention, protection against thermal injury, protection against mechanical and noise injury, as well as environmental stresses that may occur during the operation, storage, and transportation of products. It has replaced the traditional standard for electronic equipment used in electrical installations, EN 50178:1997.

The following are the main requirements of the IEC/EN 62477-1 safety standard for energy storage battery systems:

Insulation and Dielectric Strength Requirements: This standard specifies the insulation requirements between various circuits in the energy storage battery system, including requirements for insulation distance, stress, and dielectric strength. This is to ensure that the battery system can prevent safety issues such as electrical breakdown and arcing during normal use.

Grounding and Protective Grounding Requirements: The standard specifies the grounding requirements of the energy storage battery system, including requirements for grounding resistance, protective grounding, and grounding connections. This is to ensure that current can be safely discharged and protection can be provided in case of a fault.

Requirements for Control and Protection Devices: The standard specifies the requirements for the control and protection devices of the energy storage battery system, including requirements for overcurrent protection, overtemperature protection, and voltage protection. This is to ensure that the battery system can safely stop running or take corresponding measures in abnormal situations.

Requirements for Emergency Shut-off Devices: The standard specifies that the energy storage battery system should be equipped with emergency shut-off devices and makes requirements on their location, operation mode, and availability. This is to enable the power supply of the battery system to be quickly cut off in case of an emergency.

Identification and Warning Requirements: The standard requires necessary identification and warnings to be provided for the energy storage battery system to remind operators of safety matters and risks.

Compliance with the IEC/EN 62477-1 standard can ensure that the energy storage battery system meets the safety performance requirements during the design, manufacturing, and use processes, thereby safeguarding the safety of personnel and property.

Certifications and Standards Required for the Export of Household Energy Storage Power Supplies to the European Union:

For the export of household energy storage power supplies to the European Union, CE certification and RoHS certification are mainly required. Depending on the composition and functions of the household energy storage power supplies, usually the battery needs to have an EN 62619 report. If it is a common household energy storage, for CE-LVD, the EN 62477 standard is used, and for CE-EMC, the EN 61000 standard is used. If it is a photovoltaic household energy storage, for CE-LVD, the EN 62109 standard is used, and for CE-EMC, the EN 61000 standard is used. If there is a wireless function such as wireless charging, CE-RED certification is required to evaluate the wireless function. For RoHS, RoHS 2.0 is used, and the test standard usually adopts IEC 62321. Besides CE and RoHS, the battery needs to meet the Battery Directive 2006/66/EC.

Testing Standard for Inverters (Converters) - IEC/EN 62477-1:

IEC/EN 62477-1:2012 is a general safety standard for power electronic converter equipment and systems, mainly involving requirements such as protection against electric shock, protection against energy, fire prevention, protection against thermal injury, protection against mechanical and noise injury, as well as environmental stresses that may occur during the operation, storage, and transportation of products. It has replaced the traditional standard for electronic equipment used in electrical installations, EN 50178:1997.

Safety of Power Converters for Photovoltaic Power Systems - IEC 62109

Photovoltaic inverters can convert the DC voltage generated by photovoltaic modules into AC voltage, which can be fed back to the commercial power transmission system or used for off-grid power grids. They are the core components of photovoltaic power generation systems. As the product with the most electronic and electrical components in a photovoltaic power station, inverters are prone to failures and have relatively poor reliability. Improving the reliability of inverters can significantly improve the reliability of the entire power station, thereby greatly increasing the average annual power generation of the photovoltaic power station.

Certifications for Energy Storage Batteries and Systems in China:

Energy Storage Battery Safety: GB/T 36276, YD/T 2344.1, YD/T 2344.2

Energy Storage System Safety: GB/T 36558, GB/T 34131

Inverters, Converters: GB/T 34120, NB/T 32004

Grid Connection Requirements: GB/T 36547, GB/T 36548

Certifications for Energy Storage Batteries and Systems in the United States and Canada:

Energy Storage Battery Safety: UL 1973 (for household storage), UL 2743 (for portable)

Energy Storage System Safety: UL 9540

Energy Storage System Thermal Runaway Test: UL 9540A

Inverters, Converters: UL 1743, UL 1741-CSA, CSA C22.2 No 107.1-01

Grid Connection Requirements: IEEE 1547, IEEE 1547.1

Software Functional Safety Assessment: UL 60730-1, UL 1998

FCC SDOC FCC Part 15

Energy Efficiency: CEC-300

Certifications for Energy Storage Batteries and Systems in Europe:

Energy Storage Battery Safety: IEC/EN 62619, IEC/EN 63056

Energy Storage Battery Performance: IEC/EN 62620, IEC/EN 61427-1/-2

Energy Storage System Safety: IEC/EN 62040-1, IEC/EN 62477-1, IEC/EN 62368-1

Energy Storage System Safety Risk Assessment: IEC/EN 62933-5-2

Inverters, Converters: IEC/EN 62109-1/-2, IEC/EN 62477-1

Household Energy Storage Safety in Germany: VDE 2510-50

EMC: IEC/EN 61000-6-1, IEC/EN 61000-6-2, IEC/EN 61000-6-3, IEC/EN 61000-6-4

ROHS Directive 2011/65/EU

Energy Efficiency: IEC/EN 61683, IEC/EN 50530

Grid Connection Requirements for Energy Storage Batteries in Europe:

Germany: VDE-AR-N 4105, DIN VDE V 0124-100, VDE-AR-N 4105, VDE-AR-N 4120

Italy: CEI 0-21, CEI 0-16

Britain: G98 (<=16A), G99 (>16A)

France: UTE C15-712-1, VDE 0126-1-1, XP C15-712-3, VFR 2017

Spain: NTS 631, RD661, RD1699, UNE 206007-1:2013 IN, UNE 206007-2:2014 IN

Denmark: TR 3.2.1, TR 3.2.2, TR 3.3.1

Austria: OVE R25

Belgium: C10/11

Other EU Countries: EN 50549-1, EN 50549-2, IEC61727, IEC62109-1

Certifications for Energy Storage Batteries and Systems in Australia:

Energy Storage Battery Safety: AS/IEC 62619 + AS 62368.1

Energy Storage System Safety: AS 62040.1.1 or IEC 62040-1

Inverters, Converters: AS 4777.2 or IEC 62109-1/-2

Software Evaluation: AS/NZS 60335.1 Clause 22.46 or UL1973

Grid Connection Requirements: AS/NZS 4777.2

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