Atec Noiseken-ESS-200AX - Manual (Page 11)

Electrostatic Discharge Simulator
9
0.1m
ESD simulator
Isolation tranformer
ESD simulator
Insulation pallet
(h=0.1m)
Ground reference plane
470kΩ resistor
Vertical Coupling Plane
(0.5m x 0.5m)
Typical position for
direct application
Typical position for
indirect discharge to VCP
EUT 0.1m
EUT power
(AC)
ESD simulator
power
>1m distance between
the EUT and laboratory walls
Protective earth
Earth cable
Vertical Coupling Plane
(0.5m x 0.5m)
Typical position for
indirect discharge to VCP
>1m distance between
the EUT and laboratory walls
Typical position for
indirect discharge to HCP
Isolation tranformer
ESD simulator
Horizontal coupling plane
Ground reference plane
Wooden table
Insulation sheet
0.1m
Typical position for
direct application
EUT power
(AC)
ESD simulator power
EUT
0.1m
0.8m
470kΩ resistor
Protective earth
Earth cable
IEC 61000-4-2 standard
TEST SET-UP
Ground reference plane: A copper or aluminum sheet of
0.25 mm minimum thickness: other materials may be used
but they shall have at least 0.65 mm minimum thickness.
The minimum size is 1㎡ . The exact size depends on the
EUT. It shall project beyond the EUT or coupling plane by
at least 0.5 m on all sides. It shall be connected to the pro-
tective earth
Coupling planes: These planes shall be constructed from
the same material and thickness as that of the ground refer-
ence plane and shall be connected to the ground reference
plane via a cable with a 470k ohm resistor located at each
end.
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Test set-up for test performed in laboratories:
A ground reference plane shall be provided on the fl oor of
the laboratory.
The EUT shall be connected to the grounding system
and arranged and connected according to its installation
specifi cations. A distance of 1 m minimum shall be provided
between the EUT and any metallic structure.
The discharge return cable of the test generator shall
be connected to the ground reference plane, and this
connection shall be of low impedance.
In cases where the length of the cable exceeds the length
necessary to apply the discharges to the selected points,
the excess length shall be placed non-inductively off the
ground reference plane and shall not come closer than 0.2
m to other conductive parts in the test set-up. •
TEST SET-UP EXAMPLE
Table top equipment
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Test set-up for table-top equipment, laboratory
tests
A wooden table of 0.8m height shall be set on
the ground plane. 1.6m x 0.8 m horizontal and
0.5m x 0.5 m vertical coupling planes shall be
put on the table. An insulating support of 0.5
mm thickness shall be inserted between the
EUT/cables and the horizontal coupling plane.
An insulation support of 0.1m thickness
shall be used. 0.5m x 0.5m vertical coupling
plane shall be used for indirect application of
discharges.
Floor-standing equipment •
Test set-up for table-top equipment, laboratpry tests