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IEC 63445 ED1

System referencing conductor switching device

General information

50.20     May 2, 2025

PRVD    Jun 13, 2025

IEC

TC 23/SC 23K

International Standard

27.015     29.020  

Scope

IEC 63445:2025 applies to system referencing conductor switching device (SRCSD) for household and similar uses within a Prosumer’s electrical installations (PEI).
The SRCSD provides functions as described in IEC 60364-8-82:2022 [2], 82.8.2.2.4.
PEI intended for operating by either being connected to a distribution network or disconnected from the distribution network is an islandable PEI.
Intentional disconnection from and connection to the distribution network relies on the local earthing system being switched by the SRCSD. In addition, unintentional loss of distribution network is covered.
The SRCSD is a single pole device intended to connect one live conductor of the power system to an earthing arrangement.

Life cycle

NOW

PROJECT
IEC 63445 ED1
50.20 Proof sent to secretariat or FDIS ballot initiated: 8 weeks
May 2, 2025

National adoptions

dnaSRPS EN IEC 63445:2022  
ISS

System referencing conductor switching device

50.20 Proof sent to secretariat or FDIS ballot initiated: 8 weeks

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