prEN IEC 62820-3-1

Building intercom systems - Part 3-1: Application guidelines - General prEN IEC 62820-3-1

Current stage: 10.99 New project approved Nov 17, 2025

Originator: CENELEC

Owner: CLC/TC 79 Alarm systems

Type: European Norm

ICS: 13.320 Alarm and warning systems

IN_DEVELOPMENT
prEN IEC 62820-3-1
10.99 New project approved
Nov 17, 2025

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