ON STAGE (serv.man3) - JBL Audio EMC - CB Certificate (repair manual). Page 50

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Order No.  23171 

 
 

 
 

1.2.8.6 

After NOTE 2, insert the following: 

NOTE 3 – This definition for SELV CIRCUIT 
differs from the term “SELV system” as given 
in SS CP 5. 

Considered. 

2.9.2 

After the first paragraph, insert the following: 
Under tropical conditions the duration of the 
humidity conditioning is 5 days (120h) at a 
temperature (t) of 40°C 

±

 2°C with a relative 

humidity of 90% to 95%. 

Refer to PSU test report. 

2.10.6.5  

Delete “48h”. 

Considered. 

3.2.8 

Replace “23°C 

±

 2°C by “27°C 

±

 2°C”. 

Considered. 

Attention is also drawn to the following: 

1 

For a.c. power distribution systems, only TN-S 
and TT systems are allowed in the Republic of 
Singapore. 

Class III equipment. 

2 

Where the phrase “this standard” appears, it 
should be read as “Singapore Standard SS 
337”. 

Considered. 

3 

The comma has been used troughout as a 
decimal marker in IEC60950, whereas in 
Singapore standards it is practice to use a  
full-point on the baseline as the decimal 
marker. 

Consid ered. 

The IEC standards refered to shall be replaced 
by Singapore Standards as follows: 

4 

International  
standard 

IEC 60065 

IEC 60227 

Corresponding 
Singapore Standard  

SS 143 : 2000 

SS 358 : - 

Considered.