DUET II (serv.man6) - JBL Audio EMC - CB Certificate (repair manual). Page 10

IEC 60950-1 (ed.1) 

 

- Page 4 of 8 - 

 

 

Report No.   114383 

 

4.7.201 

Parts for which the glow-wire test cannot be 
carried out, such as those made of soft or foamy 
material, shall meet the requirements specified in 
ISO 9772 for category FH-3 material. The glow-
wire test shall not be carried out on parts of 
material classified at least FH-3 according to ISO 
9772 provided that the sample tested was not 
thicker than the relevant part. 

Parts of insulating material supporting 
POTENTIAL IGNITION SOURCES shall be 
subject to the glow-wire test of AS/NZS 
60695.2.11 which shall be carried out at 750°C 

The test shall also be carried out on other parts of 
insulating material which are within a distance of 3 
mm of the connection. 

NOTE: Contacts in components such as switch 
contacts are considered to be connections. 

For parts which withstand the glow-wire test but 
produce a flame, other parts above the 
connection within the envelope of a vertical 
cylinder having a diameter of 20 mm and a height 
of 50 mm shall be subjected to the needle-flame 
test. However, parts shielded by a barrier which 
meets the needle-flame test shall not be tested. 

The needle-flame test shall be made in 
accordance with AS/NZS 4695.2.2 with the 
following modifications: 

All materials have suitable flame 
class, no testing required. 

P