ON STAGE 400P (serv.man4) - JBL Audio EMC - CB Certificate (repair manual). Page 61

 

 

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Report No.   100711 

 

 

TRF No. IECEN60950_1C 

 

 

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