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IEC 61557-18 ED1

Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC – equipment for testing, measuring or monitoring of protective measures – part 18: DC EV supply equipment insulation monitoring device

General information

40.99     Apr 24, 2026

DECFDIS    Jul 17, 2026

IEC

TC 85

International Standard

17.220.20     29.240.01  

Scope

This part of the IEC 61557 series specifies the requirements for DC electric vehicle supply equipment monitoring devices, hereinafter abbreviated to DC EVSE MD, that provide insulation monitoring in DC EVSE in accordance with the requirements of IEC 61851, all parts. This standard does not cover general purpose insulation monitoring devices (IMD) in accordance with IEC 61557-8. This standard does not cover protective devices used to provide automatic disconnection of the supply.

Life cycle

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PROJECT
IEC 61557-18 ED1
40.99 Full report circulated: DIS approved for registration as FDIS
Apr 24, 2026

National adoptions

naSRPS EN IEC 61557-18:2025  
ISS

Electrical safety in low voltage distribution systems up to 1 000 v AC and 1 500 v DC - Equipment for testing, measuring or monitoring of protective measures - Part 18: DC EV supply equipment insulation monitoring device

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