Harman Kardon GO AND PLAY (serv.man2) EMC - CB Certificate ▷ View online
<12007721 001>
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Australian National Differences
If possible, the flame shall be applied at least
10 mm from a corner.
8.5 Replacement:
The test shall be made on one specimen. If the
8.5 Replacement:
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.
10 Evaluation of test results
Replace with:
The duration of burning (t
The duration of burning (t
b
) 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
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.
YY.1.3
If parts, other than enclosures, do not withstand
to glow-wire tests of YY.1.2, by failure to
extinguish within 30 s after the removal of the
glow-wire tip, the needle-flame test detailed in
YY.1.2 is 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 YY.1.2. Parts shielded by a
separate barrier which meets the needle-flame
test are not tested.
NOTE 1 - If the enclosure does not withstand the
NOTE 1 - If the enclosure does not withstand the
glow-wire test the equipment is considered to
have failed to meet the requirement of Annex YY
without the need for consequential testing.
NOTE 2 - If other parts do not withstand the
NOTE 2 - If other parts do not withstand the
glow-wire test due to ignition of the tissue paper
and if this indicates that burring or glowing
particles can fall onto an external surface
underneath the equipment, the equipment is
considered to have failed to meet the
requirement of Annex YY without the need for
consequential testing.
NOTE 3 - Parts likely to be impinged upon by the
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.
N
YY.2
The base material of printed boards is subjected
to needle-flame test to Clause YY.1.2. The flame
N
<12007721 001>
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National Differences
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Australian National Differences
is applied to the edge of the board where the heat
sink effect is lowest when the board is positioned
as in normal use. The flame shall not be applied
to an edge, consisting of broken perforations,
unless the edge is less than 3 mm from a
potential ignition source.
The test is not carried out if the –
Printed board does not carry any potential ignition
The test is not carried out if the –
Printed board does not carry any potential ignition
source;
Base material of printed boards, on which the
available apparent power at a connection
exceeds 15 VA operating at a voltage
exceeding 50 V and equal or less than 400 V
(peak) a.c. or d.c. under normal operating
conditions, is of flammability category FV-1 or
better according to AS/NZS 4695.707, or the
printed boards are protected by an enclosure
meeting the flammability category FV-0
according to AS/NZS 4695.707, or made of
metal, having openings only for connecting
wires which fill the opening completely, or
Base material of printed boards, on which the
available apparatus power at a connection
exceeds 15 VA operating at a voltage
exceeding 400 V (peak) a.c. or d.c. under
normal operating conditions, and base
material printed boards supporting spark
gaps which provide protection against
overvoltages, is of flammability category FV-0
according to AS/NSZ 4695.707 or the printed
boards are contained in a metal enclosure,
having openings only for connecting wires
which fill the openings completely.
Compliance is determined using the smallest
thickness of the material.
NOTE - Available apparent power is the
NOTE - Available apparent power is the
maximum apparent power which can be drawn
from the supplying circuit through a resistive load
whose value is chosen to maximise the apparent
power for more than 2 min when the circuit
supplied is disconnected.
<12007721 001>
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Singaporean National Differences
APPENDIX Singaporean National Differences
(SS 337:2001)
(IEC Publication 60950:1999)
(IEC Publication 60950:1999)
P
EXPLANATION FOR ABBREVIATIONS
P=Pass, F=Fail, N=Not applicable. Placed in the column to the right.
General
P=Pass, F=Fail, N=Not applicable. Placed in the column to the right.
General
IT Power Systems are not allowed in the
Republic of Singapore and all clauses related to
IT Power Systems are not applicable.
Considered.
P
2.9.2
After the first paragraph,
insert
the following:
Under tropical conditions, the duration of the
humidity conditioning is 5 days (120 h) at a
temperature (t) of 40°C ± 2°C with relative
humidity of 90% to 95%
Explanation:
Conditions described in IEC
Publications 60068-2-3:1969 – ‘Test Ca: Damp
Heat, Steady State’ (temperature: 40°C ± 2°C,
relative humidity: 90% to 95%) apply to insulation
to be used under tropical conditions. The
additional requirement on humidity conditioning is
drawn from Clause 10.2 of IEC 60065:1998
See IEC 60950 report.
P
2.10.6.5
Delete
’(48 h)’
Explanation:
To be consistent with 2.9.2.
Deleted.
N
3.2.8
Replace
’23°C± 2°C’ by ’27°C ± 2°C’
Explanation:
The recommended temperature for
tropical countries is drawn from ISO 554: 1976 –
’Standard atmospheres for conditioning and/or
testing – Specifications’.
Replaced.
N
Editorial amendment:
1.2.8.6
After NOTE 2,
insert
the following:
NOTE 3 – This definition for SELV CIRCUIT
differs from the term ’SELV system’ as given in
SS CP 5.
Attention is also drawn to the following :
For a.c. power distribution systems, only TN-S
Attention is also drawn to the following :
For a.c. power distribution systems, only TN-S
and TT systems are allowed in the Republic of
Singapore.
Where the phrase ‘this standard’ appears, it
Where the phrase ‘this standard’ appears, it
should be read as ‘Singapore Standard SS 337’.
The comma has been used throughout as a
The comma has been used throughout as a
decimal marker in IEC 60950, whereas in
Singapore standards it is a practice to use a full-
point on the baseline as the decimal marker.
The IEC standard referred to shall be replaced by
The IEC standard referred to shall be replaced by
Singapore Standards as follows:
Considered.
N
<12007721 001>
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Singaporean National Differences
International Standard Corresponding
Singapore Standard
IEC 60065
SS 143:2000
Audio, video and similar
electronic apparatus –
Safety requirements
IEC 60227
SS 358:-
Polyvinyl chloride
insulated cables of
rated voltages up to
and including
450/750V.
NOTE
Singapore Standards are subject to periodic
review to keep abreast of technological changes
and new technical developments. The revisions
of Singapore Standards are announced through
the issue of either amendment slips or revised
editions.
Compliance with a Singapore Standard does not
exempt users from legal obligations.
Shall be evaluated within the
national approval.
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