Harman Kardon HK 3770 (serv.man2) EMC - CB Certificate ▷ View online
Page 21 of 51
Report No 248607.
IEC 60065
Clause
Requirement + Test
Result - Remark
Verdict
TRF No. IEC60065K
14.12
Surge suppression varistors
P
Comply with IEC 61051-2
Varistors, VT91 and VT92
comply with IEC 61051-2.
VT91 is connected across
mains poles.
comply with IEC 61051-2.
VT91 is connected across
mains poles.
P
Not connected between mains and accessible parts
except for earthed parts of permanently connected
apparatus
except for earthed parts of permanently connected
apparatus
N/A
Complies with the current pulse, fire hazard and
thermal stress requirements of 14.12
thermal stress requirements of 14.12
A certified varistor used.
N/A
15 Terminals
15.1.1
Mains plug, appliance inlet, interconnection couplers
and mains socket-outlet meet the appropriate
standard
and mains socket-outlet meet the appropriate
standard
Approved cord set and
appliance inlet provided.
See appended table, list of
critical components, and
summary of testing.
appliance inlet provided.
See appended table, list of
critical components, and
summary of testing.
P
Overloading of plugs or appliance inlets prevented if
the apparatus has mains socket outlets
the apparatus has mains socket outlets
No mains socket outlets
N/A
Overloading of internal wiring prevented if the
apparatus has mains socket outlets
apparatus has mains socket outlets
No mains socket outlets
N/A
15.1.2
Connectors for antenna, earth, audio, video or
data
data
See below.
P
No risk of insertion in mains socket-outlets
Only RCA, Antenna, Network,
Optical and mini jacks
terminals used.
Banana plug type speaker
terminal also used, but they
are accepted due to below
note.
Note)
Banana plug type speaker
terminals are blocked in their
axial holes to prevent use of
plugs that can make
permanent contact with a
mains socket outlet.
Optical and mini jacks
terminals used.
Banana plug type speaker
terminal also used, but they
are accepted due to below
note.
Note)
Banana plug type speaker
terminals are blocked in their
axial holes to prevent use of
plugs that can make
permanent contact with a
mains socket outlet.
P
No risk of insertion into audio- or video- outlets
marked with the symbol of 5.2
marked with the symbol of 5.2
No sockets indicated with
the symbol.
the symbol.
N/A
15.1.3
Output terminals of a.c. adaptors or similar devices
not compatible with household mains socket-outlets
not compatible with household mains socket-outlets
Not adaptors used.
N/A
15.2
Provision for protective earthing
—
Accessible conductive parts of Class I equipment
reliably connected to earth terminal, within
equipment
reliably connected to earth terminal, within
equipment
Class II equipment
N/A
Protective earth conductors correctly coloured
N/A
Page 22 of 51
Report No 248607.
IEC 60065
Clause
Requirement + Test
Result - Remark
Verdict
TRF No. IEC60065K
Equipment with non-detachable mains cord provided
with separate protective earth terminal near mains
input
with separate protective earth terminal near mains
input
N/A
Protective earth terminal resistant to corrosion
N/A
Earth resistance test: < 0,1
at 25 A .................. :
N/A
15.3
Terminals for external flexible cords and for
permanent connection to the mains supply
permanent connection to the mains supply
Appliance inlet applied.
N/A
15.3.1
Adequate terminals for connection of permanent
wiring
wiring
N/A
15.3.2
Reliable connection of non-detachable cords
N/A
Not soldered to conductors of a printed circuit board
N/A
Adequate clearances and creepage distances
between connections should a wire break away
between connections should a wire break away
N/A
Wire secured by additional means to the
conductor
conductor
No screws and nuts clamping
conductors used.
conductors used.
N/A
15.3.3
Screws and nuts clamping conductors have
adequate threads: ISO 261, ISO 262 or similar
adequate threads: ISO 261, ISO 262 or similar
No such terminal used.
N/A
15.3.4
Soldered conductors wrapped around terminal prior
to soldering or held in place by additional means
to soldering or held in place by additional means
N/A
Clamping of conductor and insulation if not soldered
or held by screws
or held by screws
N/A
15.3.5
Terminals allow connection of appropriate cross-
sectional area of conductors, for the rated current of
the equipment
sectional area of conductors, for the rated current of
the equipment
N/A
15.3.6
Terminals to 15.3.3 have sizes required by table 16
N/A
15.3.7
Terminals clamp conductors between metal and
have adequate pressure
have adequate pressure
N/A
Terminals designed to avoid conductor slipping out
when tightened or loosened
when tightened or loosened
N/A
Terminals adequately fixed to avoid loosening when
the clamping is tightened or loosened and stress on
internal wiring is avoided
the clamping is tightened or loosened and stress on
internal wiring is avoided
N/A
15.3.8
Terminals carrying a current more than 0,2 A:
contact pressure not transmitted by insulating
material except ceramic
contact pressure not transmitted by insulating
material except ceramic
N/A
15.3.9
Termination of non-detachable cords: wires
terminated near to each other
terminated near to each other
N/A
Terminals located and shielded: test with 8 mm
strand
strand
N/A
15.4
Devices forming a part of the mains plug
No devices forming a part of
the mains plug.
the mains plug.
N/A
15.4.1
No undue strain on mains socket-outlets
N/A
15.4.2
Device complies with standard for dimensions of
mains plugs
mains plugs
N/A
Page 23 of 51
Report No 248607.
IEC 60065
Clause
Requirement + Test
Result - Remark
Verdict
TRF No. IEC60065K
15.4.3
Device has adequate mechanical strength (tests
a,b,c)
a,b,c)
N/A
16
External flexible cords
16.1
Mains cords sheathed type, complying with
IEC 60227 for PVC or IEC 60245 for synthetic
rubber cords ........................................................... :
IEC 60227 for PVC or IEC 60245 for synthetic
rubber cords ........................................................... :
Sheathed PVC cord
complying with IEC 60227.
complying with IEC 60227.
See appended table, list of
critical components.
critical components.
P
Non-detachable cords for Class I have green/yellow
core for protective earth
core for protective earth
Class II equipment
N/A
16.2
Mains cords conductors have adequate cross-
sectional area for rated current consumption of the
equipment
sectional area for rated current consumption of the
equipment
The cord is min. 0.75 mm
2
within the current rating.
See appended table, list of
critical components.
critical components.
P
16.3
a) Flexible cords not complying with 16.1, used for
interconnections between separate units of
equipment used in combination and carrying
hazardous live voltages, have adequate dielectric
strength
interconnections between separate units of
equipment used in combination and carrying
hazardous live voltages, have adequate dielectric
strength
No interconnecting cords.
N/A
b) Flexible cords not complying with 16.1, withstand
bending and mechanical stress (3.2 of IEC 60227-2)
bending and mechanical stress (3.2 of IEC 60227-2)
N/A
16.4
Flexible cords used for connection between
equipment have adequate cross-sectional areas to
avoid temperature rise under normal and fault
conditions
equipment have adequate cross-sectional areas to
avoid temperature rise under normal and fault
conditions
No interconnecting cords.
N/A
16.5
Adequate strain relief on external flexible cords
Appliance inlet provided.
N/A
Not possible to push cord back into equipment
N/A
Strain relief device unlikely to damage flexible
cord
cord
N/A
For mains cords of Class I equipment, hazardous
live conductors become taut before earth conductor
live conductors become taut before earth conductor
Class II equipment
N/A
16.6
Apertures for external flexible cord: no risk of
damage to the cord during assembly or movement
in use
damage to the cord during assembly or movement
in use
Appliance inlet provided.
N/A
16.7
Transportable musical instruments and amplifiers
fitted with detachable cord set with appliance inlet to
IEC 60320-1
fitted with detachable cord set with appliance inlet to
IEC 60320-1
The apparatus is not a
transportable musical
instrument and amplifier.
transportable musical
instrument and amplifier.
N/A
Transportable musical instruments and amplifiers
fitted with detachable cord sets or with means of
stowage to protect the cord
fitted with detachable cord sets or with means of
stowage to protect the cord
N/A
Page 24 of 51
Report No 248607.
IEC 60065
Clause
Requirement + Test
Result - Remark
Verdict
TRF No. IEC60065K
17
Electrical connections and mechanical fixings
17.1
Torque test to table 20
See below
P
- screws into metal: 5 times
(see appended table 17.1)
P
- screws into non-metallic material: 10 times
(see appended table 17.1)
P
17.2
Correct introduction into female threads in non-
metallic material
metallic material
Correct introduction of screws
into non-metallic material for
top cover.
into non-metallic material for
top cover.
P
17.3
Cover fixing screws: captive
Captivity not necessary
N/A
Non-captive fixing screws: no hazard when replaced
by a screw whose length is 10 times its diameter
by a screw whose length is 10 times its diameter
Tested with screw with
10 times diameter.
10 times diameter.
P
17.4
No loosening of conductive parts carrying a current
> 0,2 A
> 0,2 A
Loosening is sufficiently
prevented.
prevented.
P
17.5
Contact pressure not transmitted through plastic
other than ceramic for connections carrying a current
> 0,2 A
other than ceramic for connections carrying a current
> 0,2 A
No contact pressure
transmitted through insulating
material.
transmitted through insulating
material.
P
17.6
Stranded conductors of flexible supply cords
carrying a current > 0,2 A with screw terminals not
consolidated by solder
carrying a current > 0,2 A with screw terminals not
consolidated by solder
No such screw terminals.
N/A
17.7
Cover fixing devices other than screws have
adequate strength and their positioning is
unambiguous
adequate strength and their positioning is
unambiguous
No cover fixing devices
other than screws.
other than screws.
N/A
17.8
Fixing devices for detachable legs or stands
provided
provided
No detachable legs or stands
provided.
provided.
N/A
17.9
Internal pluggable connections, affecting safety,
unlikely to become disconnected
unlikely to become disconnected
Connections comply,
checked by inspection.
checked by inspection.
P
18
Mechanical strength of picture tubes and protection against the effects of
implosion
implosion
18.1
Picture tube separately approved to IEC 61965 ... : No picture tube used.
N/A
Picture tube separately approved to 18.2 .............. :
N/A
18.2
Non-intrinsically protected tubes tested to 18.2
N/A
19
Stability and mechanical hazards
Mass of the equipment exceeding 7 kg ................. :
Mass: 5.0 kg
—
Apparatus intended to be fastened in place –
suitable instructions ................................................ :
suitable instructions ................................................ :
No
N/A
19.1
Test on a plane, inclined at 10
o
to the horizontal
N/A
19.2
100 N force applied vertically downwards
N/A
19.3
100 N force, or 13% of weight, applied horizontally
to point of least stability
to point of least stability
Mass: < 25 kg or < 1 m
N/A
19.4
Edges or corners not hazardous
There are no hazardous
edges or corners when the
apparatus is operating in
normal position.
edges or corners when the
apparatus is operating in
normal position.
P
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