Instruction manual

Page 52 of 100 Report No. 255837
TRF No. IEC60335_2_40F
IEC 60335-2-40
Clause Requirement – Test Result Verdict
27.6
Printed conductors of printed circuit boards not used
to provide earthing continuity in hand held
appliances (IEC 60335-1/A2)
Stationary appliance. N/A
In other appliance provide earthing continuity, if at
least two tracks used with independent soldering
points and appliance complies with requirements of
clause 27.5 for each circuit (IEC 60335-1/A2)
N/A
28 SCREWS AND CONNECTIONS
—
28.1
Fixings, electrical connections and connections
providing earthing continuity withstand mechanical
stresses
Connections are adequately
fixed and expected to
withstand the mechanical
stress occurring in normal use.
P
Screws not of soft metal liable to creep, such as zinc
or aluminium
No screws of soft metal liable
to creep.
P
Diameter of screws of insulating material min. 3 mm
N/A
Screws of insulating material not used for any
electrical connection or connections providing
earthing continuity
No screws of insulating
material.
N/A
Screws used for electrical connections or
connections providing earthing continuity screw into
metal
Screws used for electrical
connections or connections
providing earthing continuity
are of metal.
P
Screws not of insulating material if their replacement
by a metal screw can impair supplementary or
reinforced insulation
No screws of insulating
material.
N/A
Type X attachment, screws to be removed for
replacement of supply cord or for user maintenance,
not of insulating material if their replacement by a
metal screw can impair basic insulation
Type Y attachment. N/A
For screws and nuts; test as specified
(IEC 60335-1/A2)
(See appended table)
P
28.2
Electrical connections and connections providing
earthing continuity constructed so that contact
pressure not transmitted through insulating material
liable to shrink or distort, unless shrinkage or
distortion compensated
Constructed so that contact
pressure is not transmitted
through insulating material.
P
This requirement does not apply to electrical
connections in circuits carrying a current not
exceeding 0,5 A
P
28.3
Space-threaded (sheet metal) screws only used for
electrical connections if they clamp the parts
together
N/A