Read JBL ON STAGEII (serv.man18) EMC - CB Certificate online
IEC 60950-1 1st. Ed, 2001
- Page 5 of 6 -
Order No. 46974
4.7.201
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.
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 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.
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.
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.
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.
4.7.201.5 Testing of printed boards
The base material of printed boards shall be subjected to
the needle-flame test of Clause 4.7.201.3. The flame shall
be 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 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 openings 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 of printed
boards supporting spark gaps which provides protection
against overvoltages, is of flammability category FV-0
according to AS/NZS 4695.707 or the printed boards are
contained in a metal enclosure, having openings only for
connecting wires which fill the openings completely.
Compliance shall be determined using the smallest
thickness of the material.
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.
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.
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 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.
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.
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.
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.
4.7.201.5 Testing of printed boards
The base material of printed boards shall be subjected to
the needle-flame test of Clause 4.7.201.3. The flame shall
be 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 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 openings 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 of printed
boards supporting spark gaps which provides protection
against overvoltages, is of flammability category FV-0
according to AS/NZS 4695.707 or the printed boards are
contained in a metal enclosure, having openings only for
connecting wires which fill the openings completely.
Compliance shall be determined using the smallest
thickness of the material.
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.
Not used.
N/A
6.2.2
Add the symbol NZ in the right hand margin beside
the first paragraph.
Add the following after the first paragraph:
In Australia (this variation does not apply in New
Zealand), compliance with 6.2.2 shall be checked by
the tests of both 6.2.2.1 and 6.2.2.2.
the first paragraph.
Add the following after the first paragraph:
In Australia (this variation does not apply in New
Zealand), compliance with 6.2.2 shall be checked by
the tests of both 6.2.2.1 and 6.2.2.2.
Delete the note.
No TNV circuitry.
N/A
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