Read Harman Kardon AVR 8500 (serv.man2) EMC - CB Certificate online
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IEC 60065, 6th edition : 1998
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- Page 32 of 44 -
Order No.
200211174
20
RESISTANCE TO FIRE
P
20.1
Electrical components and
mechanical parts
mechanical parts
P
Apparatus design
Resistance to fire is achieved by a combination of
engineering design, production methods and by using
materials with low flammability for internal parts
engineering design, production methods and by using
materials with low flammability for internal parts
P
a) Exemption for components
contained in an enclosure of material
FV 0 to IEC 60 707 with openings
not exceeding 1 mm in width
contained in an enclosure of material
FV 0 to IEC 60 707 with openings
not exceeding 1 mm in width
N
b) Exemption for small components
as defined in 20.1
as defined in 20.1
PCB is of flammability class FV 1 or better, and
exception is made for small components.
exception is made for small components.
P
20.1.1
Electrical components meet the
requirements of 14.2.5, 14.4, 14.5.3,
14.6.6 or 20.1.4
requirements of 14.2.5, 14.4, 14.5.3,
14.6.6 or 20.1.4
No other electrical components with additional
flammability requirements.
flammability requirements.
N
20.1.2
Insulation of internal wiring working
at voltages > 4 kV or leaving an
internal fire enclosure, not
contributing to the spread of fire
at voltages > 4 kV or leaving an
internal fire enclosure, not
contributing to the spread of fire
No wires working at voltages > 4kV or leaving an internal
fire enclosure
fire enclosure
N
20.1.3
Material of printed circuit boards on
which the available power exceeds
15 W at a voltage between 50 V and
400 V (peak) a.c. or d.c. meets FV 1
or better to IEC 60 707, unless used
in a fire enclosure
which the available power exceeds
15 W at a voltage between 50 V and
400 V (peak) a.c. or d.c. meets FV 1
or better to IEC 60 707, unless used
in a fire enclosure
All PCB are of base material with flammability category
FV 1 or better. See List of Critical Components.
FV 1 or better. See List of Critical Components.
P
Material of printed circuit boards on
which the available power exceeds
15 W at a voltage exceeding 400 V
(peak) a.c. or d.c. meets FV 0 to
IEC 60 707
which the available power exceeds
15 W at a voltage exceeding 400 V
(peak) a.c. or d.c. meets FV 0 to
IEC 60 707
< 400V(peak)
N
20.1.4
Components and parts not covered
by 20.1.1, 20.1.2 and 20.1.3 (other
than fire enclosures) mounted nearer
to a potential ignition source than
the distances in Table 13 comply
with the relevant flammability
category in Table 13
by 20.1.1, 20.1.2 and 20.1.3 (other
than fire enclosures) mounted nearer
to a potential ignition source than
the distances in Table 13 comply
with the relevant flammability
category in Table 13
N
Components and parts as above but
shielded from a potential ignition
source, with the barrier area in
accordance with Table 13 and fig. 13
shielded from a potential ignition
source, with the barrier area in
accordance with Table 13 and fig. 13
N
20.2
Fire enclosure
N
20.2.1
Potential ignition sources with open
circuit voltage > 4 kV (peak) a.c. or
d.c. contained in a fire enclosure to
FV 1
circuit voltage > 4 kV (peak) a.c. or
d.c. contained in a fire enclosure to
FV 1
No voltages exceeding 4kV, no fire enclosure
requirement.
requirement.
N
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