SIST EN IEC 62368-1:2020/A11:2020
(Amendment)Audio/video, information and communication technology equipment - Part 1: Safety requirements
Audio/video, information and communication technology equipment - Part 1: Safety requirements
EN-IEC 62368-1 is a product safety standard that classifies energy sources, prescribes safeguards against those energy sources, and provides guidance on the application of, and requirements for, those safeguards. The prescribed safeguards are intended to reduce the likelihood of pain, injury and, in the case of fire, property damage. The objective of the INTRODUCTION is to help designers to understand the underlying principles of safety in order to design safe equipment. These principles are informative and not an alternative to the detailed requirements of this document.
Einrichtungen für Audio/Video-, Informations- und Kommunikationstechnik - Teil 1: Sicherheitsanforderungen
Equipements des technologies de l'audio/vidéo, de l'information et de la communication - Partie 1 : Exigences de sécurité.
Oprema za avdio/video, informacijsko in komunikacijsko tehnologijo - 1. del: Varnostne zahteve
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Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN IEC 62368-1:2020/A11:2020
01-julij-2020
Oprema za avdio/video, informacijsko in komunikacijsko tehnologijo - 1. del:
Varnostne zahteve
Audio/video, information and communication technology equipment - Part 1: Safety
requirements
Einrichtungen für Audio/Video-, Informations- und Kommunikationstechnik - Teil 1:
Sicherheitsanforderungen
Equipements des technologies de l'audio/vidéo, de l'information et de la communication -
Partie 1 : Exigences de sécurité.
Ta slovenski standard je istoveten z: EN IEC 62368-1:2020/A11:2020
ICS:
33.160.01 Avdio, video in avdiovizualni Audio, video and audiovisual
sistemi na splošno systems in general
35.020 Informacijska tehnika in Information technology (IT) in
tehnologija na splošno general
SIST EN IEC 62368-1:2020/A11:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN IEC 62368-1:2020/A11:2020
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SIST EN IEC 62368-1:2020/A11:2020
EUROPEAN STANDARD EN IEC 62368-1:2020/A11
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2020
ICS 35.020; 33.160.01
English Version
Audio/video, information and communication technology
equipment - Part 1: Safety requirements
Equipements des technologies de l'audio/vidéo, de Einrichtungen für Audio/Video-, Informations- und
l'information et de la communication - Partie 1 : Exigences Kommunikationstechnik - Teil 1: Sicherheitsanforderungen
de sécurité.
This amendment A11 modifies the European Standard EN IEC 62368-1:2020; it was approved by CENELEC on 2020-01-06. CENELEC
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this amendment the
status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This amendment exists in three official versions (English, French, German). A version in any other language made by translation under the
responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as
the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62368-1:2020/A11:2020 E
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SIST EN IEC 62368-1:2020/A11:2020
EN IEC 62368-1:2020/A11:2020 (E)
European foreword
This document (EN IEC 62368-1:2020/A11:2020) has been prepared by CLC/TC 108X "Safety
of electronic equipment within the fields of Audio/Video, Information Technology and
Communication Technology".
This document amends EN IEC 62368-1:2020.
The following dates are fixed:
• latest date by which this document has to (dop) 2021-01-06
be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2023-01-06
standards conflicting with this document
have to be withdrawn
Clauses, subclauses, notes, tables, figures and annexes which are additional to those in
IEC 62368-1:2018 are prefixed “Z”.
2
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SIST EN IEC 62368-1:2020/A11:2020
EN IEC 62368-1:2020/A11:2020 (E)
1 Modification to Clause 3
Replace 3.3.19 of IEC 62368-1 with the following definitions:
3.3.19 Sound exposure
3.3.19.1
momentary exposure level, MEL
metric for estimating 1 s sound exposure level from the HD 483-1 S2 test signal applied to both
channels, based on EN 50332-1:2013, 4.2.
Note 1 to entry: MEL is measured as A-weighted levels in dB.
Note 2 to entry: See B.3 of EN 50332-3:2017 for additional information.
3.3.19.2
calculated sound dose, CSD
one week rolling estimate of sound exposure expressed in percent of the maximum regarded as
safe
Note 1 to entry: See B.4 of EN 50332-3:2017 for additional information.
3.3.19.3
sound exposure, E
A-weighted sound pressure (p) squared and integrated over a stated period of time, T
2
Note 1 to entry: The SI unit is Pa s.
3.3.19.4
sound exposure level, SEL
, typically the 1 kHz
logarithmic measure of sound exposure relative to a reference value, E0
threshold of hearing in humans.
Note 1 to entry: SEL is measured as A-weighted levels in dB.
dB
Note 2 to entry: See B.4 of EN 50332-3:2017 for additional information.
3.3.19.5
digital signal level relative to full scale, dBFS
levels reported in dBFS are always r.m.s. full scale levels; 0 dBFS, is the level of a dc-free
997 Hz sine wave whose undithered positive peak value is positive digital full scale, leaving the
code corresponding to negative digital full scale unused
Note 1 to entry: It is invalid to use dBFS for non-r.m.s. levels. Because the definition of full scale is based on a sine
wave, the level of signals with a crest factor lower than that of a sine wave may exceed 0 dBFS. In particular, square-
wave signals may reach +3,01 dBFS.
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SIST EN IEC 62368-1:2020/A11:2020
EN IEC 62368-1:2020/A11:2020 (E)
2 Modification to Clause 10
Replace 10.6 of IEC 62368-1 with the following:
10.6 Safeguards against acoustic energy sources
10.6.1 General
10.6.1.1 Introduction
Safeguard requirements for protection against long-term exposure to excessive sound pressure
levels from personal music players closely coupled to the ear are specified below. Requirements
for earphones and headphones intended for use with personal music players are also covered.
A personal music player is a portable equipment intended for use by an ordinary person, that:
– is designed to allow the user to listen to audio or audiovisual content / material; and
– uses a listening device, such as headphones or earphones that can be worn in or on or
around the ears; and
– has a player that can be body worn (of a size suitable to be carried in a clothing pocket) and
is intended for the user to walk around with while in continuous use (for example, on a street,
in a subway, at an airport, etc.).
EXAMPLES Portable CD players, MP3 audio players, mobile phones with MP3 type features, PDAs or similar
equipment.
Personal music players shall comply with the requirements of either 10.6.2 or 10.6.3.
NOTE 1 Protection against acoustic energy sources from telecom applications is referenced to ITU-T P.360.
NOTE 2 It is the intention of the Committee to allow the alternative methods for now, but to only use the dose
measurement method as given in 10.6.5 in future. Therefore, manufacturers are encouraged to implement 10.6.5 as
soon as possible.
Listening devices sold separately shall comply with the requirements of 10.6.6.
These requirements are valid for music or video mode only.
The requirements do not apply to:
– professional equipment;
NOTE 3 Professional equipment is equipment sold through special sales channels. All products sold through
normal electronics stores are considered not to be professional equipment.
– hearing aid equipment and other devices for assistive listening;
– the following type of analogue personal music players:
• long distance radio receiver (for example, a multiband radio receiver or world band radio
receiver, an AM radio receiver), and
• cassette player/recorder;
NOTE 4 This exemption has been allowed because this technology is falling out of use and it is expected that
within a few years it will no longer exist. This exemption will not be extended to other technologies.
– a player while connected to an external amplifier that does not allow the user to walk around
while in use.
For equipment that is clearly designed or intended primarily for use by children, the limits of the
relevant toy standards may apply.
The relevant requirements are given in EN 71-1:2011, 4.20 and the related tests methods and
measurement distances apply.
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SIST EN IEC 62368-1:2020/A11:2020
EN IEC 62368-1:2020/A11:2020 (E)
10.6.1.2 Non-ionizing radiation from radio frequencies in the range 0 to 300 GHz
The amount of non-ionizing radiation is regulated by European Council Recommendation 1999/519/EC of
12 July 1999 on the limitation of exposure of the general public to electromagnetic fields (0 Hz to 300
GHz).
For intentional radiators, ICNIRP guidelines should be taken into account for Limiting Exposure to Time-
Varying Electric, Magnetic, and Electromagnetic Fields (up to 300 GHz). For hand-held and body-
mounted devices, attention is drawn to EN 50360 and EN 50566.
10.6.2 Classification of devices without the capacity to estimate sound dose
10.6.2.1 General
This standard is transitioning from short-term based (30 s) requirements to long-term based
(40 h) requirements. These clauses remain in effect only for devices that do not comply with
sound dose estimation as stipulated in EN 50332-3.
For classifying the acoustic output L , , measurements are based on the A-weighted equivalent
T
Aeq
sound pressure level over a 30 s period.
For music where the average sound pressure (long term L , ) measured over the duration of
T
Aeq
the song is lower than the average produced by the programme simulation noise, measurements
may be done over the duration of the complete song. In this case, T becomes the duration of the
song.
NOTE Classical music, acoustic music and broadcast typically has an average sound pressure (long term L , )
T
Aeq
which is much lower than the average programme simulation noise. Therefore, if the player is capable to analyse the
content and compare it with the programme simulation noise, the warning does not need to be given as long as the
average sound pressure of the song does not exceed the required limit.
For example, if the player is set with the programme simulation noise to 85 dB, but the average music level of the song
is only 65 dB, there is no need to give a warning or ask an acknowledgement as long as the average sound level of the
song is not above the basic limit of 85 dB.
10.6.2.2 RS1 limits (to be superseded, see 10.6.3.2)
RS1 is a class 1 acoustic energy source that does not exceed the following:
– for equipment provided as a package (player with its listening device), and with a proprietary
connector between the player and its listening device, or where the combination of player and
listening device is known by other means such as setting or automatic detection, the L ,
T
Aeq
acoustic output shall be ≤ 85 dB when playing the fixed “programme simulation noise”
described in EN 50332-1.
– for equipment provided with a standardized connector (for example, a 3,5 phone jack) that
allows connection to a listening device for general use, the unweighted r.m.s. output voltage
shall be ≤ 27 mV (analogue interface) or -25 dBFS (digital interface) when playing the fixed
“programme simulation noise” described in EN 50332-1.
– The RS1 limits will be updated for all devices as per 10.6.3.2.
10.6.2.3 RS2 limits (to be superseded, see 10.6.3.3)
RS2 is a class 2 acoustic energy source that does not exceed the following:
– for equipment provided as a package (player with its listening device), and with a proprietary
connector between the player and its listening device, or when the combination of player and
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SIST EN IEC 62368-1:2020/A11:2020
EN IEC 62368-1:2020/A11:2020 (E)
listening device is known by other means such as setting or automatic detection, the L ,
T
Aeq
acoustic output shall be ≤ 100 dB(A) when playing the fixed “programme simulation noise” as
described in EN 50332-1.
– for equipment provided with a standardized connector (for example, a 3,5 phone jack) that
allows connection to a listening device for general use, the unweighted r.m.s. output voltage
shall be ≤ 150 mV (analogue interface) or -10 dBFS (digital interface) when playing the fixed
“programme simulation noise” as described in EN 50332-1.
10.6.2.4 RS3 limits
RS3 is a class 3 acoustic energy source that exceeds RS2 limits.
10.6.3 Classification of devices (new)
10.6.3.1 General
Previous limits (10.6.2) created abundant false negative and false positive PMP sound level
warnings. New limits, compliant with The Commission Decision of 23 June 2009, are given
below.
10.6.3.2 RS1 limits (new)
RS1 is a class 1 acoustic energy source that does not exceed the following:
– for equipment provided as a package (player with its listening device), and with a proprietary
connector between the player and its listening device, or where the combination of player and
listening device is known by other means such as setting or automatic detection, the L ,
T
Aeq
acoustic output shall be ≤ 80 dB when playing the fixed “programme simulation noise”
described in EN 50332-1.
– for equipment provided with a standardized connector (for example, a 3,5 phone jack) that
allows connection to a listening device for general use, the unweighted r.m.s. output voltage
shall be ≤ 15 mV (analogue interface) or -30 dBFS (digital interface) when playing the fixed
“programme simulation noise” described in EN 50332-1.
10.6.3.3 RS2 limits (new)
RS2 is a class 2 acoustic energy source that does not exceed the following:
– for equipment provided as a package (player with its listening device), and with a proprietary
connector between the player and its listening device, or where the combination of player and
listening device is known by other means such as setting or automatic detection, the weekly
sound exposure level, as described in EN 50332-3, shall be ≤ 80 dB when playing the fixed
"programme simulation noise" described in EN 50332-1.
– for equipment provided with a standardized connector (for example, a 3,5 phone jack) that
allows connection to a listening device for general use, the unweighted r.m.s. output level,
integrated over one week, as described in EN 50332-3, shall be ≤ 15 mV (analogue interface)
or -30 dBFS (digital interface) when playing the fixed “programme simulation noise” described
in EN 50332-1.
10.6.4 Requirements for maximum sound exposure
10.6.4.1 Measurement methods
All volume controls shall be turned to maximum during tests.
Measurements shall be made in accordance with EN 50332-1 or EN 50332-2 as applicable.
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SIST EN IEC 62368-1:2020/A11:2020
EN IEC 62368-1:2020/A11:2020 (E)
10.6.4.2 Protection of persons
Except as given below, protection requirements for parts accessible to ordinary persons,
instructed persons and skilled persons are given in 4.3.
NOTE 1 Volume control is not considered a safeguard.
Between RS2 and an ordinary person, the basic safeguard may be replaced by an
instructional safeguard in accordance with Clause F.5, except that the instructional
safeguard shall be placed on the equipment, or on the packaging, or in the instruction manual.
Alternatively, the instructional safeguard may be given through the equipment display during
use.
The elements of the instructional safeguard shall be as follows:
– element 1a: the symbol , IEC 60417-6044 (2011-01)
– element 2: “High sound pressure” or equivalent wording
– element 3: “Hearing damage risk” or equivalent wording
– element 4: “Do not listen at high volume levels for long periods.” or equivalent wording
An equipment safeguard shall prevent exposure of an ordinary person to an RS2 source
without intentional physical action from the ordinary person and shall automatically return to an
output level not exceeding what is specified for an RS1 source when the power is switched off.
The equipment shall provide a means to actively inform the user of the increased sound level
when the equipment is operated with an output exceeding RS1. Any means used shall be
acknowledged by the user before activating a mode of operation which allows for an output
exceeding RS1. The acknowledgement does not need to be repeated more than once every 20 h
of cumulative listening time.
NOTE 2 Examples of means include visual or audible signals. Action from the user is always needed.
NOTE 3 The 20 h listening time is the accumulative listening time, independent of how often and how long the
personal music player has been switched off.
A skilled person shall not be unintentionally exposed to RS3.
10.6.5 Requirements for dose-based systems
10.6.5.1 General requirements
Personal music players shall give the warnings as provided below when tested according to
EN 50332-3, using the limits from this clause.
The manufacturer may offer optional settings to allow the users to modify when and how they
wish to receive the notifications and warnings to promote a better user experience without
defeating the safeguards. This allows the users to be informed in a method that best meets their
physical capabilities and device usage needs. If such optional settings are offered, an
administrator (for example, parental restrictions, business/educational administrators, etc.) shall
be able to lock any optional settings into a specific configuration.
The personal music player shall be supplied with easy to understand explanation to the user of
the dose management system, the risks involved, and how to use the system safely. The user
shall be made aware that other sources may significantly contribute to their sound exposure, for
example work, transportation, concerts, clubs, cinema, car races, etc.
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EN IEC 62368-1:2020/A11:2020 (E)
10.6.5.2 Dose-based warning and requirements
When a dose of 100 % CSD is reached, and at least at every 100 % further increase of CSD, the
device shall warn the user and require an acknowledgement. In case the user does not
acknowledge, the output level shall automatically decrease to compliance with class RS1.
The warning shall at least clearly indicate that listening above 100 % CSD leads to the risk of
hearing damage or loss.
10.6.5.3 Exposure-based requirements
With only dose-based requirements, cause and effect could be far separated in time, defying the
purpose of educating users about safe listening practice. In addition to dose-based requirements,
a PMP shall therefore also put a limit to the short-term sound level a user can listen at.
The exposure-based limiter (EL) shall automatically reduce the sound level not to exceed
100 dB(A) or 150 mV integrated over the past 180 s, based on methodology defined in EN
50332-3. The EL settling time (time from starting level reduction to reaching target output) shall
be 10 s or faster.
Test of EL functionality is conducted according to EN 50332-3, using the limits from this clause.
For equipment provided as a package (player with its listening device), the level integrated over
180 s shall be 100 dB or lower. For equipment provided with a standardized connector, the un-
weighted level integrated over 180 s shall be no more than 150 mV for an analogue interface and
no more than -10 dBFS for a digital interface.
NOTE In case the source is known not to be music (or test signal), the EL may be disabled.
10.6.6 Requirements for listening devices (headphones, earphones, etc.)
10.6.6.1 Corded listening devices with analogue input
With 94 dB L acoustic pressure output of the listening device, and with the volume and sound
Aeq
settings in the listening device (for example, built-in volume level control, additional sound
features like equalization, etc.) set to the combination of positions that maximize the measured
acoustic output, the input voltage of the listening device when playing the fixed “programme
simulation noise” as described in EN 50332-1 shall be ≥ 75 mV.
NOTE The values of 94 dB and 75 mV correspond with 85 dB and 27 mV or 100 dB and 150 mV.
10.6.6.2 Corded listening devices with digital input
With any playing device playing the fixed “programme simulation noise” described in
EN 50332-1, and with the volume and sound settings in the listening device (for example, built-in
volume level control, additional sound features like equalization, etc.) set to the combination of
positions that maximize the measured acoustic output, the L , acoustic output of the listening
T
Aeq
device shall be ≤ 100 dB with an input signal of -10 dBFS.
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SIST EN IEC 62368-1:2020/A11:2020
EN IEC 62368-1:2020/A11:2020 (E)
10.6.6.3 Cordless listening devices
In cordless mode,
– with any playing and transmitting device playing the fixed programme simulation noise
described in EN
...
SLOVENSKI STANDARD
SIST EN IEC 62368-1:2019/A11:2020
01-julij-2020
Oprema za avdio/video, informacijsko in komunikacijsko tehnologijo - 1. del:
Varnostne zahteve
Audio/video, information and communication technology equipment - Part 1: Safety
requirements
Einrichtungen für Audio/Video-, Informations- und Kommunikationstechnik - Teil 1:
Sicherheitsanforderungen
Equipements des technologies de l'audio/vidéo, de l'information et de la communication -
Partie 1 : Exigences de sécurité.
Ta slovenski standard je istoveten z: EN IEC 62368-1:2020/A11:2020
ICS:
33.160.01 Avdio, video in avdiovizualni Audio, video and audiovisual
sistemi na splošno systems in general
35.020 Informacijska tehnika in Information technology (IT) in
tehnologija na splošno general
SIST EN IEC 62368-1:2019/A11:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN IEC 62368-1:2019/A11:2020
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SIST EN IEC 62368-1:2019/A11:2020
EUROPEAN STANDARD EN IEC 62368-1:2020/A11
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2020
ICS 35.020; 33.160.01
English Version
Audio/video, information and communication technology
equipment - Part 1: Safety requirements
Equipements des technologies de l'audio/vidéo, de Einrichtungen für Audio/Video-, Informations- und
l'information et de la communication - Partie 1 : Exigences Kommunikationstechnik - Teil 1: Sicherheitsanforderungen
de sécurité.
This amendment A11 modifies the European Standard EN IEC 62368-1:2020; it was approved by CENELEC on 2020-01-06. CENELEC
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this amendment the
status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This amendment exists in three official versions (English, French, German). A version in any other language made by translation under the
responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as
the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62368-1:2020/A11:2020 E
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SIST EN IEC 62368-1:2019/A11:2020
EN IEC 62368-1:2020/A11:2020 (E)
European foreword
This document (EN IEC 62368-1:2020/A11:2020) has been prepared by CLC/TC 108X "Safety
of electronic equipment within the fields of Audio/Video, Information Technology and
Communication Technology".
This document amends EN IEC 62368-1:2020.
The following dates are fixed:
• latest date by which this document has to (dop) 2021-01-06
be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2023-01-06
standards conflicting with this document
have to be withdrawn
Clauses, subclauses, notes, tables, figures and annexes which are additional to those in
IEC 62368-1:2018 are prefixed “Z”.
2
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SIST EN IEC 62368-1:2019/A11:2020
EN IEC 62368-1:2020/A11:2020 (E)
1 Modification to Clause 3
Replace 3.3.19 of IEC 62368-1 with the following definitions:
3.3.19 Sound exposure
3.3.19.1
momentary exposure level, MEL
metric for estimating 1 s sound exposure level from the HD 483-1 S2 test signal applied to both
channels, based on EN 50332-1:2013, 4.2.
Note 1 to entry: MEL is measured as A-weighted levels in dB.
Note 2 to entry: See B.3 of EN 50332-3:2017 for additional information.
3.3.19.2
calculated sound dose, CSD
one week rolling estimate of sound exposure expressed in percent of the maximum regarded as
safe
Note 1 to entry: See B.4 of EN 50332-3:2017 for additional information.
3.3.19.3
sound exposure, E
A-weighted sound pressure (p) squared and integrated over a stated period of time, T
2
Note 1 to entry: The SI unit is Pa s.
3.3.19.4
sound exposure level, SEL
, typically the 1 kHz
logarithmic measure of sound exposure relative to a reference value, E0
threshold of hearing in humans.
Note 1 to entry: SEL is measured as A-weighted levels in dB.
dB
Note 2 to entry: See B.4 of EN 50332-3:2017 for additional information.
3.3.19.5
digital signal level relative to full scale, dBFS
levels reported in dBFS are always r.m.s. full scale levels; 0 dBFS, is the level of a dc-free
997 Hz sine wave whose undithered positive peak value is positive digital full scale, leaving the
code corresponding to negative digital full scale unused
Note 1 to entry: It is invalid to use dBFS for non-r.m.s. levels. Because the definition of full scale is based on a sine
wave, the level of signals with a crest factor lower than that of a sine wave may exceed 0 dBFS. In particular, square-
wave signals may reach +3,01 dBFS.
3
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SIST EN IEC 62368-1:2019/A11:2020
EN IEC 62368-1:2020/A11:2020 (E)
2 Modification to Clause 10
Replace 10.6 of IEC 62368-1 with the following:
10.6 Safeguards against acoustic energy sources
10.6.1 General
10.6.1.1 Introduction
Safeguard requirements for protection against long-term exposure to excessive sound pressure
levels from personal music players closely coupled to the ear are specified below. Requirements
for earphones and headphones intended for use with personal music players are also covered.
A personal music player is a portable equipment intended for use by an ordinary person, that:
– is designed to allow the user to listen to audio or audiovisual content / material; and
– uses a listening device, such as headphones or earphones that can be worn in or on or
around the ears; and
– has a player that can be body worn (of a size suitable to be carried in a clothing pocket) and
is intended for the user to walk around with while in continuous use (for example, on a street,
in a subway, at an airport, etc.).
EXAMPLES Portable CD players, MP3 audio players, mobile phones with MP3 type features, PDAs or similar
equipment.
Personal music players shall comply with the requirements of either 10.6.2 or 10.6.3.
NOTE 1 Protection against acoustic energy sources from telecom applications is referenced to ITU-T P.360.
NOTE 2 It is the intention of the Committee to allow the alternative methods for now, but to only use the dose
measurement method as given in 10.6.5 in future. Therefore, manufacturers are encouraged to implement 10.6.5 as
soon as possible.
Listening devices sold separately shall comply with the requirements of 10.6.6.
These requirements are valid for music or video mode only.
The requirements do not apply to:
– professional equipment;
NOTE 3 Professional equipment is equipment sold through special sales channels. All products sold through
normal electronics stores are considered not to be professional equipment.
– hearing aid equipment and other devices for assistive listening;
– the following type of analogue personal music players:
• long distance radio receiver (for example, a multiband radio receiver or world band radio
receiver, an AM radio receiver), and
• cassette player/recorder;
NOTE 4 This exemption has been allowed because this technology is falling out of use and it is expected that
within a few years it will no longer exist. This exemption will not be extended to other technologies.
– a player while connected to an external amplifier that does not allow the user to walk around
while in use.
For equipment that is clearly designed or intended primarily for use by children, the limits of the
relevant toy standards may apply.
The relevant requirements are given in EN 71-1:2011, 4.20 and the related tests methods and
measurement distances apply.
4
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EN IEC 62368-1:2020/A11:2020 (E)
10.6.1.2 Non-ionizing radiation from radio frequencies in the range 0 to 300 GHz
The amount of non-ionizing radiation is regulated by European Council Recommendation 1999/519/EC of
12 July 1999 on the limitation of exposure of the general public to electromagnetic fields (0 Hz to 300
GHz).
For intentional radiators, ICNIRP guidelines should be taken into account for Limiting Exposure to Time-
Varying Electric, Magnetic, and Electromagnetic Fields (up to 300 GHz). For hand-held and body-
mounted devices, attention is drawn to EN 50360 and EN 50566.
10.6.2 Classification of devices without the capacity to estimate sound dose
10.6.2.1 General
This standard is transitioning from short-term based (30 s) requirements to long-term based
(40 h) requirements. These clauses remain in effect only for devices that do not comply with
sound dose estimation as stipulated in EN 50332-3.
For classifying the acoustic output L , , measurements are based on the A-weighted equivalent
T
Aeq
sound pressure level over a 30 s period.
For music where the average sound pressure (long term L , ) measured over the duration of
T
Aeq
the song is lower than the average produced by the programme simulation noise, measurements
may be done over the duration of the complete song. In this case, T becomes the duration of the
song.
NOTE Classical music, acoustic music and broadcast typically has an average sound pressure (long term L , )
T
Aeq
which is much lower than the average programme simulation noise. Therefore, if the player is capable to analyse the
content and compare it with the programme simulation noise, the warning does not need to be given as long as the
average sound pressure of the song does not exceed the required limit.
For example, if the player is set with the programme simulation noise to 85 dB, but the average music level of the song
is only 65 dB, there is no need to give a warning or ask an acknowledgement as long as the average sound level of the
song is not above the basic limit of 85 dB.
10.6.2.2 RS1 limits (to be superseded, see 10.6.3.2)
RS1 is a class 1 acoustic energy source that does not exceed the following:
– for equipment provided as a package (player with its listening device), and with a proprietary
connector between the player and its listening device, or where the combination of player and
listening device is known by other means such as setting or automatic detection, the L ,
T
Aeq
acoustic output shall be ≤ 85 dB when playing the fixed “programme simulation noise”
described in EN 50332-1.
– for equipment provided with a standardized connector (for example, a 3,5 phone jack) that
allows connection to a listening device for general use, the unweighted r.m.s. output voltage
shall be ≤ 27 mV (analogue interface) or -25 dBFS (digital interface) when playing the fixed
“programme simulation noise” described in EN 50332-1.
– The RS1 limits will be updated for all devices as per 10.6.3.2.
10.6.2.3 RS2 limits (to be superseded, see 10.6.3.3)
RS2 is a class 2 acoustic energy source that does not exceed the following:
– for equipment provided as a package (player with its listening device), and with a proprietary
connector between the player and its listening device, or when the combination of player and
5
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EN IEC 62368-1:2020/A11:2020 (E)
listening device is known by other means such as setting or automatic detection, the L ,
T
Aeq
acoustic output shall be ≤ 100 dB(A) when playing the fixed “programme simulation noise” as
described in EN 50332-1.
– for equipment provided with a standardized connector (for example, a 3,5 phone jack) that
allows connection to a listening device for general use, the unweighted r.m.s. output voltage
shall be ≤ 150 mV (analogue interface) or -10 dBFS (digital interface) when playing the fixed
“programme simulation noise” as described in EN 50332-1.
10.6.2.4 RS3 limits
RS3 is a class 3 acoustic energy source that exceeds RS2 limits.
10.6.3 Classification of devices (new)
10.6.3.1 General
Previous limits (10.6.2) created abundant false negative and false positive PMP sound level
warnings. New limits, compliant with The Commission Decision of 23 June 2009, are given
below.
10.6.3.2 RS1 limits (new)
RS1 is a class 1 acoustic energy source that does not exceed the following:
– for equipment provided as a package (player with its listening device), and with a proprietary
connector between the player and its listening device, or where the combination of player and
listening device is known by other means such as setting or automatic detection, the L ,
T
Aeq
acoustic output shall be ≤ 80 dB when playing the fixed “programme simulation noise”
described in EN 50332-1.
– for equipment provided with a standardized connector (for example, a 3,5 phone jack) that
allows connection to a listening device for general use, the unweighted r.m.s. output voltage
shall be ≤ 15 mV (analogue interface) or -30 dBFS (digital interface) when playing the fixed
“programme simulation noise” described in EN 50332-1.
10.6.3.3 RS2 limits (new)
RS2 is a class 2 acoustic energy source that does not exceed the following:
– for equipment provided as a package (player with its listening device), and with a proprietary
connector between the player and its listening device, or where the combination of player and
listening device is known by other means such as setting or automatic detection, the weekly
sound exposure level, as described in EN 50332-3, shall be ≤ 80 dB when playing the fixed
"programme simulation noise" described in EN 50332-1.
– for equipment provided with a standardized connector (for example, a 3,5 phone jack) that
allows connection to a listening device for general use, the unweighted r.m.s. output level,
integrated over one week, as described in EN 50332-3, shall be ≤ 15 mV (analogue interface)
or -30 dBFS (digital interface) when playing the fixed “programme simulation noise” described
in EN 50332-1.
10.6.4 Requirements for maximum sound exposure
10.6.4.1 Measurement methods
All volume controls shall be turned to maximum during tests.
Measurements shall be made in accordance with EN 50332-1 or EN 50332-2 as applicable.
6
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10.6.4.2 Protection of persons
Except as given below, protection requirements for parts accessible to ordinary persons,
instructed persons and skilled persons are given in 4.3.
NOTE 1 Volume control is not considered a safeguard.
Between RS2 and an ordinary person, the basic safeguard may be replaced by an
instructional safeguard in accordance with Clause F.5, except that the instructional
safeguard shall be placed on the equipment, or on the packaging, or in the instruction manual.
Alternatively, the instructional safeguard may be given through the equipment display during
use.
The elements of the instructional safeguard shall be as follows:
– element 1a: the symbol , IEC 60417-6044 (2011-01)
– element 2: “High sound pressure” or equivalent wording
– element 3: “Hearing damage risk” or equivalent wording
– element 4: “Do not listen at high volume levels for long periods.” or equivalent wording
An equipment safeguard shall prevent exposure of an ordinary person to an RS2 source
without intentional physical action from the ordinary person and shall automatically return to an
output level not exceeding what is specified for an RS1 source when the power is switched off.
The equipment shall provide a means to actively inform the user of the increased sound level
when the equipment is operated with an output exceeding RS1. Any means used shall be
acknowledged by the user before activating a mode of operation which allows for an output
exceeding RS1. The acknowledgement does not need to be repeated more than once every 20 h
of cumulative listening time.
NOTE 2 Examples of means include visual or audible signals. Action from the user is always needed.
NOTE 3 The 20 h listening time is the accumulative listening time, independent of how often and how long the
personal music player has been switched off.
A skilled person shall not be unintentionally exposed to RS3.
10.6.5 Requirements for dose-based systems
10.6.5.1 General requirements
Personal music players shall give the warnings as provided below when tested according to
EN 50332-3, using the limits from this clause.
The manufacturer may offer optional settings to allow the users to modify when and how they
wish to receive the notifications and warnings to promote a better user experience without
defeating the safeguards. This allows the users to be informed in a method that best meets their
physical capabilities and device usage needs. If such optional settings are offered, an
administrator (for example, parental restrictions, business/educational administrators, etc.) shall
be able to lock any optional settings into a specific configuration.
The personal music player shall be supplied with easy to understand explanation to the user of
the dose management system, the risks involved, and how to use the system safely. The user
shall be made aware that other sources may significantly contribute to their sound exposure, for
example work, transportation, concerts, clubs, cinema, car races, etc.
7
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10.6.5.2 Dose-based warning and requirements
When a dose of 100 % CSD is reached, and at least at every 100 % further increase of CSD, the
device shall warn the user and require an acknowledgement. In case the user does not
acknowledge, the output level shall automatically decrease to compliance with class RS1.
The warning shall at least clearly indicate that listening above 100 % CSD leads to the risk of
hearing damage or loss.
10.6.5.3 Exposure-based requirements
With only dose-based requirements, cause and effect could be far separated in time, defying the
purpose of educating users about safe listening practice. In addition to dose-based requirements,
a PMP shall therefore also put a limit to the short-term sound level a user can listen at.
The exposure-based limiter (EL) shall automatically reduce the sound level not to exceed
100 dB(A) or 150 mV integrated over the past 180 s, based on methodology defined in EN
50332-3. The EL settling time (time from starting level reduction to reaching target output) shall
be 10 s or faster.
Test of EL functionality is conducted according to EN 50332-3, using the limits from this clause.
For equipment provided as a package (player with its listening device), the level integrated over
180 s shall be 100 dB or lower. For equipment provided with a standardized connector, the un-
weighted level integrated over 180 s shall be no more than 150 mV for an analogue interface and
no more than -10 dBFS for a digital interface.
NOTE In case the source is known not to be music (or test signal), the EL may be disabled.
10.6.6 Requirements for listening devices (headphones, earphones, etc.)
10.6.6.1 Corded listening devices with analogue input
With 94 dB L acoustic pressure output of the listening device, and with the volume and sound
Aeq
settings in the listening device (for example, built-in volume level control, additional sound
features like equalization, etc.) set to the combination of positions that maximize the measured
acoustic output, the input voltage of the listening device when playing the fixed “programme
simulation noise” as described in EN 50332-1 shall be ≥ 75 mV.
NOTE The values of 94 dB and 75 mV correspond with 85 dB and 27 mV or 100 dB and 150 mV.
10.6.6.2 Corded listening devices with digital input
With any playing device playing the fixed “programme simulation noise” described in
EN 50332-1, and with the volume and sound settings in the listening device (for example, built-in
volume level control, additional sound features like equalization, etc.) set to the combination of
positions that maximize the measured acoustic output, the L , acoustic output of the listening
T
Aeq
device shall be ≤ 100 dB with an input signal of -10 dBFS.
8
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EN IEC 62368-1:2020/A11:2020 (E)
10.6.6.3 Cordless listening devices
In cordless mode,
– with any playing and transmitting device playing the fixed programme simulation noise
described in EN
...
SLOVENSKI STANDARD
oSIST prEN IEC 62368-1:2019/prAA:2019
01-april-2019
Oprema za avdio/video, informacijsko in komunikacijsko tehnologijo - 1. del:
Varnostne zahteve
Audio/video, information and communication technology equipment - Part 1: Safety
requirements
Einrichtungen für Audio/Video-, Informations- und Kommunikationstechnik - Teil 1:
Sicherheitsanforderungen
Equipements des technologies de l'audio/vidéo, de l'information et de la communication -
Partie 1 : Exigences de sécurité.
Ta slovenski standard je istoveten z: prEN IEC 62368-1:2019/prAA:2019
ICS:
33.160.01 Avdio, video in avdiovizualni Audio, video and audiovisual
sistemi na splošno systems in general
35.020 Informacijska tehnika in Information technology (IT) in
tehnologija na splošno general
oSIST prEN IEC 62368- en,fr,de
1:2019/prAA:2019
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN IEC 62368-1:2019/prAA:2019
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oSIST prEN IEC 62368-1:2019/prAA:2019
EUROPEAN STANDARD DRAFT
prEN IEC 62368-1:2019
NORME EUROPÉENNE
EUROPÄISCHE NORM
prAA
January 2019
ICS 35.020; 33.160.01
English Version
Audio/video, information and communication technology
equipment - Part 1: Safety requirements
Equipements des technologies de l'audio/vidéo, de Einrichtungen für Audio/Video-, Informations- und
l'information et de la communication - Partie 1 : Exigences Kommunikationstechnik - Teil 1: Sicherheitsanforderungen
de sécurité.
This draft amendment prAA, if approved, will modify the European Standard prEN IEC 62368-1:2019; it is submitted to CENELEC members
for enquiry.
Deadline for CENELEC: 2019-04-19.
It has been drawn up by CLC/TC 108X.
If this draft becomes an amendment, CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this amendment the status of a national standard without any alteration.
This draft amendment was established by CENELEC in three official versions (English, French, German).
A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to
the CEN-CENELEC Management Centre has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Project: 66779 Ref. No. prEN IEC 62368-1:2019/prAA:2019 E
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oSIST prEN IEC 62368-1:2019/prAA:2019
prEN IEC 62368-1:2019/prAA:2019 (E)
1 European foreword
2 This draft amendment to the draft European Standard prEN IEC 62368-1:2019 was prepared by
3 CLC/TC 108X "Safety of electronic equipment within the fields of Audio/Video, Information
4 Technology and Communication Technology". It contains common modifications to 108/701/FDIS
5 (IEC 62368-1:2018) and is submitted to the enquiry.
6 If approved, this draft amendment will be published as EN IEC 62368-1:201X/A11:201X.
7 The following dates are proposed:
– latest date by which the existence of this document (doa) dor + 6 months
has to be announced at national level
– latest date by which this document has to be implemented (dop) dor + 12 months
at national level by publication of an identical
national standard or by endorsement
– latest date by which the national standards conflicting (dow) dor + 36 months
with this document have to be withdrawn
(to be confirmed or
modified when voting)
8 This document has been prepared under a mandate given to CENELEC by the European
9 Commission and the European Free Trade Association and supports essential requirements of
10 EU Directive(s).
11 For the relationship with EU Directive(s), see informative Annexes ZZ, which are integral parts of
12 this document.
2
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prEN IEC 62368-1:2019/prAA:2019 (E)
13 COMMON MODIFICATIONS
14
15 1 Modification to the European foreword
16 Add the following new paragraphs after the sixth paragraph of European foreword:
17
18 This standard covers the Principle Elements of the Safety Objectives for Electrical Equipment Designed
19 for Use within Certain Voltage Limits (LVD - 2014/35/EU).
20
21 This standard covers the health and safety objectives in Article 3.1 (a) of the Directive on the
22 harmonisation of the laws of the Member States relating to the making available on the market of radio
23 equipment and repealing Directive 1999/5/EC (RE-D – 2014/53/EU).
24
25 2 Modification to the Scope
th
26 Replace the 7 paragraph of the Scope with the following:
27
28 This part of IEC 62368 specifies safeguards for ordinary persons, instructed persons, and skilled
29 persons under normal operating conditions, abnormal operating conditions (including reasonably
30 foreseeable misuse) and single fault conditions. Additional requirements may apply for equipment that
31 is clearly designed or intended for use by children or specifically attractive to children.
32 3 Modification to Clause 3
33 Modify Clause 3 as follows:
34 3 Terms, definitions and abbreviations
35 3.3 Terms and definitions
36 Replace 3.3.19 of IEC 62368-1:2018 with the following definitions:
37 3.3.19
38 sound exposure
39 3.3.19.1
40 momentary exposure level
41 MEL
42 metric for estimating 1 s sound exposure level from the HD 483-1 S2 test signal applied to both
43 channels, based on EN 50332-1:2013, 4.2
44 Note 1 to entry: MEL is measured as A-weighted levels in dB.
45 Note 2 to entry: See B.3 of EN 50332-3:2017 for additional information.
46 3.3.19.2
47 calculated sound dose
48 CSD
49 one week rolling estimate of sound exposure expressed in percent of the maximum regarded as
50 safe
51 Note 1 to entry: See B.4 of EN 50332-3:2017 for additional information.
3
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prEN IEC 62368-1:2019/prAA:2019 (E)
52 3.3.19.3
53 sound exposure
54 E
55 A-weighted sound pressure (p) squared and integrated over a stated period of time, T
2
56 Note 1 to entry: The SI unit is Pa s.
57
58 3.3.19.4
59 sound exposure level
60 SEL
61 logarithmic measure of sound exposure relative to a reference value, E , typically the 1 kHz
0
62 threshold of hearing in humans
63 Note 1 to entry: SEL is measured as A-weighted levels in dB.
64 dB
65 Note 2 to entry: See B.4 of EN 50332-3 for additional information.
66 3.3.19.5
67 digital signal level relative to full scale
68 dBFS
69 levels reported in dBFS are always r.m.s. Full scale level, 0 dBFS, is the level of a dc-free 997-
70 Hz sine wave whose undithered positive peak value is positive digital full scale, leaving the code
71 corresponding to negative digital full scale unused
72 Note 1 to entry: It is invalid to use dBFS for non-r.m.s. levels. Because the definition of full scale is based on a sine
73 wave, the level of signals with a crest factor lower than that of a sine wave may exceed 0 dBFS. In particular, square-
74 wave signals may reach +3,01 dBFS.
75 4 Modification to Clause 10, Radiation
76 Replace Clause 10.6 of IEC 62368-1:2018 with the following:
77 10.6 Safeguards against acoustic energy sources
78 10.6.1 General
79 Safeguard requirements for protection against long-term exposure to excessive sound pressure
80 levels from personal music players closely coupled to the ear are specified below. Requirements
81 for earphones and headphones intended for use with personal music players are also covered.
82 A personal music player is a portable equipment intended for use by an ordinary person, that:
83 – is designed to allow the user to listen to audio or audiovisual content / material; and
84 – uses a listening device, such as headphones or earphones that can be worn in or on or
85 around the ears; and
86 – has a player that can be body worn (of a size suitable to be carried in a clothing pocket) and
87 is intended for the user to walk around with while in continuous use (for example, on a street,
88 in a subway, at an airport, etc.).
4
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prEN IEC 62368-1:2019/prAA:2019 (E)
89 EXAMPLES Portable CD players, MP3 audio players, mobile phones with MP3 type features, PDAs or similar
90 equipment.
91 Personal music players shall comply with the requirements of either 10.6.2 or 10.6.3.
92 NOTE 1 Protection against acoustic energy sources from telecom applications is referenced to ITU-T P.360.
93 NOTE 2 It is the intention of the Committee to allow the alternative methods for now, but to only use the dose
94 measurement method as given in 10.6.5 in future. Therefore, manufacturers are encouraged to implement 10.6.5 as
95 soon as possible.
96 Listening devices sold separately shall comply with the requirements of 10.6.6.
97 These requirements are valid for music or video mode only.
98 The requirements do not apply to:
99 – professional equipment;
100 NOTE 3 Professional equipment is equipment sold through special sales channels. All products sold through
101 normal electronics stores are considered not to be professional equipment.
102 – hearing aid equipment and other devices for assistive listening;
103 – the following type of analogue personal music players:
104 • long distance radio receiver (for example, a multiband radio receiver or world band radio
105 receiver, an AM radio receiver), and
106 • cassette player/recorder;
107 NOTE 4 This exemption has been allowed because this technology is falling out of use and it is expected that
108 within a few years it will no longer exist. This exemption will not be extended to other technologies.
109 – a player while connected to an external amplifier that does not allow the user to walk around
110 while in use.
111 For equipment that is clearly designed or intended primarily for use by children, the limits of the
112 relevant toy standards may apply.
113 NOTE 5 In Europe, the relevant requirements are given in EN 71-1:2011, 4.20 and the related tests methods and
114 measurement distances apply.
115 10.6.2 Classification of devices without the capacity to estimate sound dose
116 10.6.2.1 General
117 This standard is transitioning from short-term based (30 s) requirements to long-term based
118 (40 hour) requirements. These clauses remain in effect only for devices that do not comply with
119 sound dose estimation as stipulated in EN 50332-3.
120 For classifying the acoustic output L , , measurements are based on the A-weighted
T
Aeq
121 equivalent sound pressure level over a 30 s period.
122 For music where the average sound pressure (long term L , ) measured over the duration of
T
Aeq
123 the song is lower than the average produced by the programme simulation noise, measurements
124 may be done over the duration of the complete song. In this case, T becomes the duration of the
125 song.
126 NOTE Classical music, acoustic music and broadcast typically has an average sound pressure (long term L , )
T
Aeq
127 which is much lower than the average programme simulation noise. Therefore, if the player is capable to analyse the
128 content and compare it with the programme simulation noise, the warning does not need to be given as long as the
129 average sound pressure of the song does not exceed the required limit.
130 For example, if the player is set with the programme simulation noise to 85 dB, but the average music level of the song
131 is only 65 dB, there is no need to give a warning or ask an acknowledgement as long as the average sound level of the
132 song is not above the basic limit of 85 dB.
5
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prEN IEC 62368-1:2019/prAA:2019 (E)
133 10.6.2.2 RS1 limits (to be superseded, see 10.6.3.2)
134 RS1 is a class 1 acoustic energy source that does not exceed the following:
135 – For equipment provided as a package (player with its listening device), and with a proprietary
136 connector between the player and its listening device, or where the combination of player and
137 listening device is known by other means such as setting or automatic detection, the L ,
T
Aeq
138 acoustic output shall be ≤ 85 dB when playing the fixed “programme simulation noise”
139 described in EN 50332-1.
140 – For equipment provided with a standardized connector (for example, a 3,5 phone jack) that
141 allows connection to a listening device for general use, the unweighted r.m.s. output voltage
142 shall be ≤ 27 mV (analogue interface) or -25 dBFS (digital interface) when playing the fixed
143 “programme simulation noise” described in EN 50332-1.
144 – The RS1 limits will be updated for all devices as per 10.6.3.2.
145 10.6.2.3 RS2 limits (to be superseded, see 10.6.3.3)
146 RS2 is a class 2 acoustic energy source that does not exceed the following:
147 – for equipment provided as a package (player with its listening device), and with a proprietary
148 connector between the player and its listening device, or when the combination of player and
149 listening device is known by other means such as setting or automatic detection, the L ,
T
Aeq
150 acoustic output shall be ≤ 100 dB(A) w
...
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