ON STAGEII (serv.man18) - JBL Audio EMC - CB Certificate (repair manual). Page 55

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Order No.  46974 

 

4.7.201 

Add the following after Clause 4.7.3.6. 
4.7.201 Resistance to fire – Alternative tests 
4.7.201.1 General 
Parts of non-metallic material shall be resistant to 
ignition and spread of fire. 
This requirement does not apply to decorative trims, 
knobs and other parts unlikely to be ignited or to 
propagate flames originating from inside the 
apparatus, or the following: 
Components that are contained in an enclosure 
having a flammability category of FV-0 according to 
AS/NZS 4695.707 and 
having openings only for the connecting wires filling 
the openings completely, and for ventilation not 
exceeding 1 mm in width 
regardless of length. 
The following parts which would contribute negligible 
fuel to a fire: small mechanical parts, the mass of 
which does not exceed 
4 g, such as mounting parts, gears, cams, belts and 
bearings; small electrical components, such as 
capacitors with a volume 
not exceeding 1 750 mm3, integrated circuits, 
transistors and optocoupler packages, if these 
components are mounted on material of flammability 
category FV-1, or better, according to AS/NZS 
4695.707. 
NOTE In considering how to minimize propagation of 
fire and what ‘small parts’ are, account should be 
taken of the 
cumulative effect of small parts adjacent to each 
other for the possible effect of propagating fire from 
one part to another. 
Compliance shall be checked by the tests of 
4.7.201.2, 4.7.201.3, 4.7.201.4 and 4.7.201.5. 
For the base material of printed boards, compliance 
shall be checked by the test of 4.7.201.5. 
The tests shall be carried out on parts of non-
metallic material which have been removed from the 
apparatus. When the glowwire test is carried out, the 
parts shall be placed in the same orientation as they 
would be in normal use. These tests are not carried 
out on internal wiring. 
4.7.201.2 Testing of non-metallic materials 
Parts of non-metallic material shall be subject to the 
glow-wire test of AS/NZS 60695.2.11 which shall be 
carried out at 550°C. 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 be not 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. 
4.7.201.3 Testing of insulating materials 
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. 

Not used. 

N/A