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Page 44 of 44 

Report No. : W13-950-006 

 

Clause 

Requirement + Test 

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Verdict

 

 

TRF No. IEC60950_1C 

 

 

P 

 

Ambient temperature (

C)  ................................... : 

25.0 

 

 

Power source for EUT: Manufacturer, model/type, 
output rating  ......................................................... : 

 

 

Component  

No. 

Fault 

Supply 

voltage

 (V) 

Test 

time 

Fuse #

Fuse 

current

(A) 

Observation 

Audio 
Amplifiers

 

S-C 264 

2.4h 

-- 

0.273 

Normal work, no damage and no 
hazards. 

Audio 
Amplifiers

 

Max. non-
clipped 

264 2.5h 

-- 

0.370 

Normal work, no damage and no 
hazards. 

Supplementary information: 

 

 

Page 1 of 16 

Report No.: W13-950-006  

IEC60950_1B - ATTACHMENT 

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Information technology equipment – Safety – 

Part 1: General requirements

 ................ : 

EN  60950-1:2006/A11:2009/A1:2010/A12:2011 

. ..................... :  EU_GD_IEC60950_1B_II 

 ................... :  SGS Fimko Ltd 

 ......................... :  Date 2011-08 

 

 

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Contents 

Add the following annexes: 
Annex ZA (normative)  

 

Normative references to international    

     publications 

with 

their 

corresponding 

     publications 
Annex ZB (normative)  

 

Special national conditions 

P 

General 

Delete all the “country” notes in the reference document (IEC 60950-1:2005) 
according to the following list: 
1.4.8  Note 2 

1.5.1   

Note 2 & 3  1.5.7.1 

Note 

1.5.8  Note 2  

1.5.9.4  

Note    

1.7.2.1 

Note 4, 5 & 6 

2.2.3   Note    

2.2.4    

Note    

2.3.2    

Note 

2.3.2.1 Note 2  

2.3.4    

Note 2  

2.6.3.3  

Note 2 & 3 

2.7.1   Note    

2.10.3.2  

Note 2  

2.10.5.13 

Note 3 

3.2.1.1 Note   

3.2.4    

Note 3. 

2.5.1    

Note 2 

4.3.6   Note 1 & 2   4.7    

Note 4  

4.7.2.2  

Note 

4.7.3.1Note 2  

5.1.7.1  

Note 3 & 4   5.3.7    

Note 1 

6  

Note 2 & 5   6.1.2.1  

Note 2  

6.1.2.2  

Note 

6.2.2   Note    

6.2.2.1  

Note 2  

6.2.2.2  

Note 

7.1   Note 3  

7.2    

Note             7.3  

          Note 1 & 2 

G.2.1  Note 2  

Annex H 

Note 2 

P 

General

 

(A1:2010)

 

Delete all the “country” notes in the reference document (IEC 60950-
1:2005/A1:2010) according to the following list: 
1.5.7.1 

Note   

 

6.1.2.1  

Note 2 

 

6.2.2.1  

Note 2   EE.3 

 Note 

P 

 

 

Page 2 of 16 

Report No.: W13-950-006  

IEC60950_1B - ATTACHMENT 

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1.3.Z1 

Add the following subclause: 
1.3.Z1 Exposure to excessive sound pressure  
The apparatus shall be so designed and 
constructed as to present no danger when used 
for its intended purpose, either in normal 
operating conditions or under fault conditions, 
particularly providing protection against exposure 
to excessive sound pressures from headphones 
or earphones. 

NOTE Z1 A new method of measurement is described 
in EN 50332-1, Sound system equipment: 
Headphones and earphones associated with portable 
audio equipment - Maximum sound pressure level 
measurement methodology and limit considerations - 
Part 1: General method for “one package equipment”, 
and in EN 50332-2, Sound system equipment: 
Headphones and earphones associated with portable 
audio equipment - Maximum sound pressure level 
measurement methodology and limit considerations - 
Part 2: Guidelines to associate sets with headphones 
coming from different manufacturers.

 

 N/A 

(A12:2011) 

In EN 60950-1:2006/A12:2011 
Delete the addition of 1.3.Z1 / EN 60950-1:2006 
Delete the definition 1.2.3.Z1 / EN 60950-1:2006 
/A1:2010  

 

P 

1.5.1 

Add the following NOTE: 

NOTE Z1 The use of certain substances in electrical 
and electronic equipment is restricted within the EU: 
see Directive 2002/95/EC

 

 

P 

1.7.2.1 

(A1:2010) 

In addition, for a PORTABLE SOUND SYSTEM, 
the instructions shall include a warning that 
excessive sound pressure from earphones and 
headphones can cause hearing loss. 

 

N/A  

1.7.2.1 
(A12.2011) 

In EN 60950-1:2006/A12:2011 
Delete NOTE Z1 and the addition for Portable 
Sound System. 
Add the following clause and annex to the existing 
standard and amendments. 

 

P 

N/A 

 

 

Page 3 of 16 

Report No.: W13-950-006  

IEC60950_1B - ATTACHMENT 

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Zx.1 General 
This sub-clause specifies requirements for 
protection against excessive sound pressure from 
personal music players that are closely coupled 
to the ear. It also specifies requirements for 
earphones and headphones intended for use with 
personal music players. 

 

A personal music player is a portable equipment 
for personal use, that: 
is designed to allow the user to listen to 
  recorded or broadcast sound or video; and 
primarily uses headphones or earphones that 
  can be worn in or on or around the ears; and 
allows the user to walk around while in use. 

NOTE 1 Examples are hand-held or body-worn portable CD 
players, MP3 audio players, mobile phones with MP3 type 
features, PDA’s or similar equipment. 

 

A personal music player and earphones or 
headphones intended to be used with personal 
music players shall comply with the requirements 
of this sub-clause. 

 

The requirements in this sub-clause are valid for 
music or video mode only. 

 

The requirements do not apply: 
while the personal music player is connected to 
  an external amplifier; or 
while the headphones or earphones are not used.  

NOTE 2 An external amplifier is an amplifier which is not part 
of the personal music player or the listening device, but which 
is intended to play the music as a standalone music player. 

 

The requirements do not apply to: 
hearing aid equipment and 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. 

 

 N/A