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Product family standard for audio, video, audio-visual and entertainment
lighting control apparatus for professional use
Environments
Sets of limits are specified for the following five environments. The apparatus shall
conform to one or more of the sets of limits. It is the responsibility of the manufacturer
to apply the appropriate set or sets of limits to his apparatus.
E1 residential
E2 commercial and light industrial
E3 urban outdoors
E4 controlled EMC environments (for example purpose built broadcasting or recording
studio), and the rural outdoors environment (far away from railways,
transmitters, overhead power lines, etc.)
E5 heavy industrial and environments close to broadcast transmitters
Disturbance Phenomena for Emission Testing
- Enclosure port; RF electromagnetic fields, 30 MHz to 1000 MHz.
- Enclosure port; magnetic fields, 50 Hz to 50 kHz measured at 10 cm.
- Enclosure port; magnetic fields, 50 Hz to 50 kHz measured at 1 m.
- AC power port; conducted emissions, harmonic currents 0 to 2 kHz.
- AC power port; conducted emissions, voltage fluctuations imposed by the apparatus upon
the power supply.
- AC power port; conducted emissions 0.15 MHz to 30 MHz.
- AC power port; conducted emissions, discontinuous interference, ‘clicks’ 0.15
MHz to 30 MHz.
- AC power port; conducted emissions, inrush currents.
- Antenna terminals of broadcast radio and television receivers, conducted emissions, 30
MHz to 1000 MHz.
- Signal and control ports, DC power ports; conducted emissions, 0.15 MHZ to 30 MHz.
Conditions during measurement
The apparatus is operated in accordance with the manufacturer’s instructions. The
measurements are made in the operating mode producing the largest emission of the type
being measured, consistent with normal operation. Attempts are made to maximize the
emission by varying the configuration of the test sample. The configuration and mode of
operation during measurement is precisely noted in the test report.
If the apparatus is a part of a system, or can be connected to auxiliary apparatus,
then the apparatus is tested while connected to the minimum configuration of auxiliary
apparatus that is typical of normal use. Where an apparatus has more than one input or
output of a particular type, the number of inputs and outputs connected to the auxiliary
apparatus during the measurements shall be the minimum that will enable the apparatus to
perform its intended function.
Measurements are performed in well-defined and reproducible conditions for each type of
disturbance. The measurements are carried out one by one in sequence, the sequence being
optional. Each measurement or series of associated measurements of one phenomenon are
carried out under a single set of environmental conditions within the specified operating
environmental range of the apparatus and at its rated supply voltage, unless otherwise
specified in the standard.
Disturbing Phenomena for Immunity Testing
- Enclosure port; AM RF electromagnetic fields, 80 MHz to 1000 MHz.
- Enclosure port; electrostatic discharge.
- Enclosure port; magnetic fields, 50 Hz to 10 kHz.
- Signal and control ports; fast transients, common mode.
- Signal and control ports; 50 Hz to 10 kHz, audio frequency common mode.
- Signal and control ports; AM RF common mode, 0.15 MHz to 80 MHz.
- Input and output DC power ports; fast transients, common mode.
- Input and output DC power ports; AM RF common mode, 0.15 MHz to 80 MHz.
- Input and output AC power ports; fast transients, common mode.
- Input AC power ports; voltage dips.
- Input AC power ports; voltage interruptions.
- Input AC power ports; surges, common mode and differential mode.
- Input and output AC power ports; AM RF common mode, 0.15 MHz to 80 MHz.
- Functional earth port; AM RF common mode, 0.15 MHz to 80 MHz.
- Functional earth port; fast transients, common mode.
Performance Criteria
The variety and diversity of the apparatus within the scope of EN 55103-2 make it
difficult to define precise criteria for the evaluation of the immunity test results.
Apparatus shall not become dangerous or unsafe as a result of the tests defined in EN
55103-2. The manufacturer shall provide details, which are noted in the test report, of
any degradation of performance or loss of function, during or as a consequence of each
test, based on the following criteria:
Performance criterion A: The apparatus shall continue to operate as
intended. No degradation of performance or loss of function is allowed below a performance
level specified by the manufacturer, when the apparatus is used as intended. The
performance level may be replaced by a permissible loss of performance. If the
manufacturer does not specify the minimum performance level or the permissible performance
loss, then either of these may be derived from the product description and documentation
(including leaflets and advertising) and what the user may reasonably expect from the
apparatus if used as intended.
Performance criterion B: The apparatus shall continue to operate as
intended after the test. No degradation of performance or loss of function is allowed
below a performance level specified by the manufacturer, when the apparatus is used as
intended. The performance level may be replaced by a permissible loss of performance.
During the test, degradation of performance is, however, allowed. No change of actual
operating state or stored data is allowed. If the manufacturer does not specify the
minimum performance level or the permissible performance loss, then either of these may be
derived from the product description and documentation (including leaflets and
advertising) and what the user may reasonably expect from the apparatus if used as
intended.
Performance criterion C: Temporary loss of function is allowed, provided
that normal function is automatically restored when the test stimulus is removed, or can
be restored by operation of the controls.
It is permissible for the manufacturer to specify loss of performance by using the five
point impairment scale defined in ITU/R Recommendations 500-4 or 562-3.
General
In EN 55103-2, reference is made to reproducible laboratory conditions which may not
always accurately represent conditions found in practice.
It may be determined from consideration of the electrical characteristics and usage of
a particular apparatus that some tests are inappropriate and therefore unnecessary. In
such a case it is required that the decision and justification not to test shall be
recorded in the test report.
The tests are made in the most susceptible operating mode for the phenomenon being
investigated in accordance with the manufacturer’s instructions. The configuration of
the test sample shall be varied to achieve maximum susceptibility.
If the apparatus is part of a system, or can be connected to auxiliary apparatus, then
the apparatus is tested while connected to the minimum configuration of auxiliary
apparatus necessary to exercise the ports in a similar manner to that describes in EN
55022.
In cases where the manufacturer’s specification specifically require external
protection devices or measures which are clearly specified in the user’s manual, then
the test requirements of EN 55103-2 are applied with the external protection devices or
measures in place.
The configuration and mode of operation during testing is precisely noted in the test
report. It is not always possible to test every function of the apparatus, in such cases
the most critical mode of operation shall be selected. Where applicable, test programs and
software are chosen so as to exercise all normal modes of operation of the apparatus under
test. The use of special exercising software is permitted provided that it can be shown
that the apparatus under test is being comprehensively exercised in its normal operating
modes.
Tests shall be performed in well-defined and reproducible conditions for each type of
test stimulus. The tests shall be carried out one by one in sequence, the sequence being
optional. Each test or series of associated tests of one phenomenon shall be carried out
under a single set of environmental conditions within the specified operating
environmental range of the apparatus and at its rated supply voltage, unless otherwise
specified in EN 55103-2 or the relevant Basic Standard.
Audio frequency interference voltages shall be measured using the quasi-peak meter and
psophometric weighting specified in HD 483.1 unless the manufacturer’s specification
states these voltages as A-weighted values or A-weighted levels in decibels.
If a magnetic or common mode signal/control port disturbance within the effective
frequency range of the apparatus under test can cause the rated output level of the
apparatus under test to be exceeded at the test level specified in EN 55103-2, the
controls of the apparatus under test shall be set, or its operating mode chosen, so as to
prevent this overloading (if possible) and the manufacturer shall state these settings or
choice. If such a setting or choice is not possible, the manufacturer shall state that
special precautions may be necessary to reduce the level of the relevant disturbance
impinging on the apparatus, and shall state the highest level of disturbance that the
apparatus can tolerate, together with the performance, or degradation from undisturbed
performance, which that level produces.
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