Harman Kardon SoundSticks II EMC - CB Certificate ▷ View online
Page 70 of 91
ST-05368
IEC 60950-1 / EN 60950-1
Clause
Requirement – Test
Result – Remark
Verdict
TRF No.: IECEN60950_1A
4.7.201.1 General
Parts of non-metallic material shall be resistant to
ignition and spread of fire.
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:
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.
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 mm
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 mm
3
,
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.
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.
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.
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.
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.
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.
N/A
Page 71 of 91
ST-05368
IEC 60950-1 / EN 60950-1
Clause
Requirement – Test
Result – Remark
Verdict
TRF No.: IECEN60950_1A
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.
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.
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.
N/A
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.
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 be also carried out on other parts of
insulating material which are within a distance of
3mm of the connection.
insulating material which are within a distance of
3mm of the connection.
NOTE Contacts in components such as switch
contacts are considered to be connections.
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.
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:
accordance with AS/NZS 4695.2.2 with the
following modifications:
Clause of AS/NZS
4695.2.2
4695.2.2
Change
5 Severities
Replace with:
The duration of application
of the test flame shall be 30
s
of the test flame shall be 30
s
± 1 s.
N/A
Page 72 of 91
ST-05368
IEC 60950-1 / EN 60950-1
Clause
Requirement – Test
Result – Remark
Verdict
TRF No.: IECEN60950_1A
(cont.)
8 Test procedure
8.2
Replace the first sentence
with:
with:
The specimen shall be
arranged so that the flame
can be applied to a vertical
or horizontal edge as shown
in the examples of figure 1.
arranged so that the flame
can be applied to a vertical
or horizontal edge as shown
in the examples of figure 1.
8.4
The first paragraph does not
apply.
apply.
Addition:
If possible, the flame shall
be applied at least 10 mm
from a corner.
be applied at least 10 mm
from a corner.
8.5
Replace with:
The test shall be made on
one specimen. If the
specimen does not
withstand the test, the test
may be repeated on two
further specimens, both of
which shall then withstand
the test.
one specimen. If the
specimen does not
withstand the test, the test
may be repeated on two
further specimens, both of
which shall then withstand
the test.
10 Evaluation of
test results
test results
Replace with:
The duration of burning (tb)
shall not exceed 30 s.
However, for printed circuit
boards, it shall not exceed
15 s.
shall not exceed 30 s.
However, for printed circuit
boards, it shall not exceed
15 s.
The needle-flame test shall not be carried out on
parts of material classified as V-0 or V-1
according to IEC 60695-11-10, provided that the
sample tested was not thicker than the relevant
part.
parts of material classified as V-0 or V-1
according to IEC 60695-11-10, provided that the
sample tested was not thicker than the relevant
part.
N/A
Page 73 of 91
ST-05368
IEC 60950-1 / EN 60950-1
Clause
Requirement – Test
Result – Remark
Verdict
TRF No.: IECEN60950_1A
4.7.201.4
Testing in the event of non-extinguishing material
If parts, other than enclosures, do not withstand
the glow wire tests of 4.7.201.3, by failure to
extinguish within 30 s after the removal of the
glow-wire tip, the needle-flame test detailed in
If parts, other than enclosures, do not withstand
the glow wire tests of 4.7.201.3, by failure to
extinguish within 30 s after the removal of the
glow-wire tip, the needle-flame test detailed in
4.7.201.3 shall be made on all parts of non-
metallic material which are within a distance of 50
mm or which are likely to be impinged upon by
flame during the tests of 4.7.201.3. Parts shielded
by a separate barrier which meets the needle-
flame test need not be tested.
metallic material which are within a distance of 50
mm or which are likely to be impinged upon by
flame during the tests of 4.7.201.3. Parts shielded
by a separate barrier which meets the needle-
flame test need not be tested.
NOTE 1 - If the enclosure does not withstand the
glow-wire test the equipment is considered to
have failed to meet the requirements of Clause
4.7.201 without the need for consequential
testing.
glow-wire test the equipment is considered to
have failed to meet the requirements of Clause
4.7.201 without the need for consequential
testing.
NOTE 2 - If other parts do not withstand the glow-
wire test due to ignition of the tissue paper and if
this indicates that burning or glowing particles can
fall onto an external surface underneath the
equipment, the equipment is considered to have
failed to meet the requirements of Clause 4.7.201
without the need for consequential testing.
wire test due to ignition of the tissue paper and if
this indicates that burning or glowing particles can
fall onto an external surface underneath the
equipment, the equipment is considered to have
failed to meet the requirements of Clause 4.7.201
without the need for consequential testing.
NOTE 3 - Parts likely to be impinged upon by the
flame are considered to be those within the
envelope of a vertical cylinder having a radius of
10 mm and a height equal to the height of the
flame, positioned above the point of the material
supporting, in contact with, or in close proximity
to, connections.
flame are considered to be those within the
envelope of a vertical cylinder having a radius of
10 mm and a height equal to the height of the
flame, positioned above the point of the material
supporting, in contact with, or in close proximity
to, connections.
N/A
Click on the first or last page to see other SoundSticks II service manuals if exist.