GB/T 16895.36-2024Low-voltage electrical installations - Part 7-722: Requirements for special installations or locations - Supplies for electric vehicles (English PDF)

722.1 Scope

Special requirements of this document apply to.

-- Circuits that provide electrical energy to electric vehicles, and

-- Circuits that feed electrical energy back from electric vehicles.

The circuits specified in this document terminate at the connection points.

NOTE 1.Requirements for conductive charging and related charging modes of EV supply equipment

are given in IEC 61851 (all parts). Requirements for wireless power transfer of EV supply equipment are

given in IEC 61980 (all parts).

NOTE 2.This document is not applicable to the explosion risk assessment of hydrogen or other

flammable gases that may be generated during battery charging.

722.2 Normative references

The provisions of the following documents constitute the essential clauses of this

document through normative references in this text. Among them, for referenced

documents with dates, only the versions corresponding to the dates are applicable to

this document; for referenced documents without dates, the latest versions (including

all amendments) are applicable to this document.

GB/T 16895.21-2020, Low-voltage electrical installations - Part 4-41.Protection

for safety - Protection against electric shock (IEC 60364-4-41.2017, IDT)

IEC 60269 (all parts), Low voltage fuses

NOTE. GB/T 13539 (all parts), Low voltage fuses [IEC 60269 (all parts)]

IEC 60309-1, Plugs, socket-outlets and couplers for industrial purposes - Part 1.

General requirements

switching and control devices for wireless power transmission systems.

NOTE 2.The in-cable control and protection device (IC-CPD) described in IEC 62752 is not designed

for use in fixed installations.

722.530.3.102 For circuits specified in 722.531.3.101, if more than one electric vehicle

is supplied from the same unearthed power supply, an insulation fault location system

(IFLS) complying with IEC 61557-9 should be used to detect the faulty circuit in the

shortest possible time.

722.531 Devices for protection against indirect contact by automatic disconnection

of supply

722.531.2 Residual current protective device

The following content is added.

722.531.2.101 In accordance with the provisions of 722.411.3.3, the RCDs used for the

protection of each connection point shall at least meet the requirements of a Type A

RCD, and its rated residual operating current shall not exceed 30 mA.

In EV charging stations equipped with sockets or vehicle connectors complying with

IEC 62196 (all parts), DC fault current protection measures shall be taken unless the

EV charging station has its own protection measures. The appropriate measures to be

taken at each connection point are as follows.

-- the use of a Type B RCD, or

-- the use of a type A RCD in combination with a residual direct current detecting

device (RDC-DD) in accordance with IEC 62955, or

-- the use of a type F RCD in combination with a residual direct current detecting

device (RDC-DD) in accordance with IEC 62955.

RCD shall comply with IEC 61008-1, IEC 61009-1, IEC 60947-2 or IEC 62423.

NOTE. 722.531.2.101 does not apply when there are other means of protection against electric shock at

the connection point, such as safety extra low voltage (SELV) or electric separation.

722.531.2.1.1

The following replaces the existing provisions (including NOTEs).

The RCD shall disconnect all live conductors.

722.531.3 Insulation monitoring devices

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