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HD 549 S1:1989 Standard

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  Keywords:

#conference #equipment #applies #electrical #requirements

  Directive

Low voltage (LVD) Directive (2014/35/EU)

  Last Official Journal reference

Tuesday 22nd of July 2025

  Description:

Conference systems - Electrical and audio requirements

  Purpose

Applies to conference systems and to parts of which they are composed or which are used as auxiliaries to such systems (headphones, microphones, amplification equipment). Describes the different types of conference systems with both wired and wireless systems, and specifies the basic electrical requirements of audio equipment for conference systems. Prescribes the minimum requirements for conference systems in order to ensure interchangeability and optimum performance under conditions of normal operation.

  Publication

Wednesday 20th of April 2016

  Related Standards

EN 60831-1:2014/AC:2014

Low voltage (LVD) Directive (2014/35/EU)

Shunt power capacitors of the self-healing type for a.c. systems having a rated voltage up to and including 1 000 V - Part 1: Gene...

EN 61557-4:2007

Low voltage (LVD) Directive (2014/35/EU)

Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or mo...

EN 61386-23:2004/AC:2004

Low voltage (LVD) Directive (2014/35/EU)

Conduit systems for cable management - Part 23: Particular requirements - Flexible conduit systems

EN 61386-24:2010

Low voltage (LVD) Directive (2014/35/EU)

Conduit systems for cable management - Part 24: Particular requirements - Conduit systems buried underground

EN 61386-25:2011

Low voltage (LVD) Directive (2014/35/EU)

Conduit systems for cable management - Part 25: Particular requirements - Conduit fixing devices

EN 61439-1:2011

Low voltage (LVD) Directive (2014/35/EU)

Low-voltage switchgear and controlgear assemblies - Part 1: General rules

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