IEC 61800-3:2004/AMD1:2011

IEC 61800-3
®

Edition 2.0 2011-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
AMENDMENT 1
AMENDEMENT 1


Adjustable speed electrical power drive systems –
Part 3: EMC requirements and specific test methods

Entraînements électriques de puissance à vitesse variable –
Partie 3: Exigences de CEM et méthodes d'essais spécifiques

IEC 61800-3:2004/A1:2011

---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 61800-3
®

Edition 2.0 2011-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
AMENDMENT 1
AMENDEMENT 1


Adjustable speed electrical power drive systems –
Part 3: EMC requirements and specific test methods

Entraînements électriques de puissance à vitesse variable –
Partie 3: Exigences de CEM et méthodes d'essais spécifiques

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE PRICE CODE
R
CODE PRIX
ICS 29.200; 33.100 ISBN 978-2-88912-713-9

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

---------------------- Page: 3 ----------------------
– 2 – 61800-3 Amend. 1 © IEC:2011
FOREWORD
This Amendment has been prepared by IEC sub-committee 22G: Adjustable speed electric
drive systems incorporating semiconductor power converters, of IEC technical committee 22:
Power electronic systems and equipment.
The text of this amendment is based on the following documents:
FDIS Report on voting
22G/227/FDIS 22G/229/RVD

Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The committee has decided that the contents of this amendment and the base publication will
remain unchanged until the stability date indicated on the IEC web site under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.

_____________

---------------------- Page: 4 ----------------------
61800-3 Amend. 1 © IEC:2011 – 3 –
2 Normative references
Replace, in the existing list, the existing reference to IEC 61000-2-4 by the following new
reference:
IEC 61000-2-4:2002, Electromagnetic compatibility (EMC) – Part 2-4: Environment –
Compatibility levels in industrial plants for low-frequency conducted disturbances
Add, to the existing list, the following new references:
IEC 61000-4-11:2004, Electromagnetic compatibility (EMC) – Part 4-11: Testing and
measurement techniques – Voltage dips, short interruptions and voltage variations immunity
tests
IEC 61000-4-13:2002, Electromagnetic compatibility (EMC) – Part 4-13: Testing and
measurement techniques – Harmonics and interharmonics including mains signalling at a.c.
power port, low frequency immunity tests
IEC 61000-4-34:2005, Electromagnetic compatibility (EMC) – Part 4-34: Testing and
measurement techniques – Voltage dips, short interruptions and voltage variations immunity
tests for equipment with input current more than 16 A per phase
3 Terms and definitions
3.1 Overview
Replace the existing title of this subclause by the following new title:
3.1 Definition of the installation and its content
Delete the existing three paragraphs of this subclause.
Add, before the existing Figure 1, the following new sentence:
Figure 1 shows the major parts of the PDS as defined below and the rest of the installation.
Add, after the existing Figure 1, the following new terms and definitions 3.1.1, 3.1.2, 3.1.3 and
3.1.4:
3.1.1
basic drive module
BDM
electronic power converter and related control, connected between an electric supply and a
motor. The BDM is capable of transmitting power from the electric supply to the motor and
may be capable of transmitting power from the motor to the electric supply. The BDM controls
some or all of the following aspects of power transmitted to the motor and motor output:
• current;
• frequency;
• voltage;
• speed;
• torque;
• force;
• position

---------------------- Page: 5 ----------------------
– 4 – 61800-3 Amend. 1 © IEC:2011
3.1.2
complete drive module
CDM
drive module consisting of, but not limited to, the BDM and extensions such as protection
devices, transformers and auxiliaries. However the motor and the sensors which are
mechanically coupled to the motor shaft are not included
3.1.3
power drive system
PDS
system consisting of one or more complete drive module(s) (CDM) and a motor or motors.
Any sensors which are mechanically coupled to the motor shaft are also part of the PDS;
however the driven equipment is not included
3.1.4
installation
equipment or equipments which include at least both the PDS and the driven equipment

3.3 Location, ports and interfaces
3.3.5
port for process measurement and control
Delete, in the existing definition, the existing words "as defined in Clause 3 (see Figure 2)".
3.3.9
mechanical link
Delete, in the existing definition, the existing words "as defined in Clause 3".

3.4 Components of PDS
3.4.2
(electric) motor
Add, after the existing definition and source, the following new note:
NOTE For the purposes of this standard, the motor includes all sensors which are mounted on it and which are
relevant for supporting the operating mode and interacting with a CDM.
Delete the existing definition 3.4.3 and renumber the existing definition 3.4.4 as 3.4.3.
Add, after definition 3.4.3, the following new subclause 3.5 and the following new terms and
definitions 3.5.1 to 3.5.4 as follows:
3.5 Phenomena-related definitions
3.5.1
voltage deviation
difference, generally expressed as a percentage, between the voltage at a given instant at a
point in the system, and a reference voltage such as: nominal voltage, a mean value of the
operating voltage, declared supply voltage
[IEV 604-01-17]

---------------------- Page: 6 ----------------------
61800-3 Amend. 1 © IEC:2011 – 5 –
3.5.2
voltage change
variation of the r.m.s. or peak value of a voltage between two consecutive levels sustained for
definite but unspecified durations
NOTE Whether the r.m.s. or peak value is chosen depends upon the application, and which is used should be
specified.
[IEV 161-08-01]
3.5.3
voltage fluctuation
series of voltage changes or a continuous variation of the r.m.s. or peak value of the voltage
NOTE Whether the r.m.s. or peak value is chosen depends upon the application, and which is used should be
specified.
[IEV 161-08-05]
3.5.4
voltage dip
sudden reduction of the voltage at a point in an electrical system followed by voltage recovery
after a short period of time from a few cycles to a few seconds
[IEV 604-01-25, IEV 161-08-10]
4.2.1 Conditions
Renumber the existing note of this subclause as Note 1.
Replace the existing third paragraph of this subclause by the following new paragraph and
new Note 2:
For the tests, the CDM shall be connected to a motor recommended by the manufacturer with
a cable and earthing rules defined by the manufacturer. Alternatively, a passive test load
(resistive, or resistive and inductive) may be applied (for example, for evaluation of the low-
frequency emissions), if permitted by the manufacturer.
NOTE 2 For high frequency emissions, because it is necessary to simulate differential and common mode
capacitances and couplings, a passive test load may not be suitable for this application.
4.3 Documentation for the user

Replace the existing second paragraph of this subclause by the following new paragraph and
new Notes 1 and 2:
The manufacturer shall supply the documentation necessary for the correct installation of a
BDM, CDM or PDS into a typical system or process in the intended environment. This
information includes any emission warnings required by 6.1 and Table 13. It also includes the
warnings required by 5.3.2 in the case where the immunity of a BDM, CDM or PDS is not
suitable for the second environment.
NOTE 1 From the emission point of view, a PDS (or BDM or CDM) with a lower emission category, such as C1,
can always be used instead of one with a higher emission category, such as C3.
NOTE 2 Emission categories are independent of immunity. For example, a statement that a PDS has emission
category C1 does not imply that the immunity is only suitable for the first environment.

---------------------- Page: 7 ----------------------
– 6 – 61800-3 Amend. 1 © IEC:2011
5.1 General conditions
5.1.1 Acceptance criteria (performance criteria)
Add, after the last existing paragraph, the following new paragraph:
Subclauses 5.2 and 5.3 state the acceptance criterion required for each phenomenon.
5.2 Basic immunity requirements – low-frequency disturbances
5.2.1 Common principle
Delete the existing Note 3.
5.2.2.1 Low voltage PDSs – (voltage distortion)
Replace the existing paragraph, note and Table 2 of this subclause, by the following new
paragraph, new note and new Tables 23, 24 and 25:
The BDM, CDM or PDS shall sustain the immunity levels while meeting the performance
criteria given in Tables 23, 24 and 25. It shall be verified that these levels will not cause the
ratings for the input circuits (filters, etc.) to be exceeded. Analysis of commutation notches
shall be in the time domain. The manufacturer may verify immunity by calculation, simulation,
or test, according to 5.2.1. If the chosen verification method is by test, it shall be performed
using the PDS with the motor connected. For equipment rated below 16 A per phase, the test
method of IEC 61000-4-13 can be applied.
NOTE Frequency domain analysis of the contribution from notches to the total harmonic distortion will not fully
account for harmful effects, see B.1.
Table 23 – Minimum immunity requirements for total harmonic distortion
on power ports of low voltage PDSs
Phenomenon First environment Second environment Performance
(acceptance)
Reference Level Reference Level criterion
document document
Harmonics – IEC 61000-2-2 8 % IEC 61000-2-4 12 % A
class 3
THD

---------------------- Page: 8 ----------------------
61800-3 Amend. 1 © IEC:2011 – 7 –
Table 24 – Minimum immunity requirements for individual harmonic orders
on power ports of low voltage PDSs
Phenomenon First environment Second environment Performance
(acceptance)
Harmonic Reference Level Reference Level criterion
order document document
2 IEC 61000-4-13 3 % IEC 61000-4-13 5 % A
class 2 class 3
3 8 % 9 %
4 1,5 % 2 %
5 9 % 12 %
Even orders No requirement 1,5 %
6 ≤ h ≤ 50
7 7,5 % 10 %
9 2,5 % 4 %
11 5 % 7 %
13 4,5 % 7 %
15 No requirement 3 %
17 3 % 6 %
19 2 % 6 %
21 No requirement 2 %
23 2 % 6 %
25 2 % 6 %
27 No requirement 2 %
29 1,5 % 5 %
31 1,5 % 3 %
33 No requirement 2 %
35 1,5 % 3 %
37 1,5 % 3 %
39 No requirement 2 %
NOTE 1 For individual harmonic orders, levels are from Class 2 in IEC 61000-4-13 (these are approximately
1,5 times the compatibility levels of IEC 61000-2-4).
NOTE 2 For individual harmonic orders, levels are from Class 3 in IEC 61000-4-13 (these are approximately
1,5 times the compatibility levels of IEC 61000-2-4).

Table 25 – Minimum immunity requirements for commutation notches
on power ports of low voltage PDSs
Phenomenon First environment Second environment Performance
(acceptance)
Reference Level Reference Level criterion
document document
Commutation (None) No requirement IEC 60146-1-1 Depth = 40 %, A
notches Class B total area = 250
in % degrees

---------------------- Page: 9 ----------------------
– 8 – 61800-3 Amend. 1 © IEC:2011
Table 3 – Minimum immunity requirements for harmonics and commutation
notches/voltage distortion on main power ports of PDSs of rated voltage above 1 000 V
a b c a
Delete, the existing table footnotes " " and " ", and renumber existing footnote " " as " ".
Delete the entire two rows starting with "Interhamonics steady state", and "Interharmonics
short term (< 15 s)".
5.2.2.2.2 Auxiliary power port
Replace the existing first sentence of the subclause by the following new sentence:
The auxiliary power ports of PDSs shall sustain the immunity levels for the second
environment given in Tables 23, 24 and 25 while meeting the performance criteria in those
tables.
Delete the existing Table 4 of this subclause.
5.2.3 Voltage deviations (variations, changes, fluctuations), dips and short interruptions
Delete, in the existing title of this subclause, the words "(variations, changes, fluctuations)".

---------------------- Page: 10 ----------------------
61800-3 Amend. 1 © IEC:2011 – 9 –
Table 5 – Minimum immunity requirements for voltage deviations, dips and short
interruptions on power ports of low voltage PDSs
Replace the existing Table 5 by the following new Table 5:
Table 5 – Minimum immunity requirements for voltage deviations, dips
and short interruptions on power ports of low voltage PDSs
Phenomenon First environment Second environment Performance
(acceptance)
Reference Level Reference Level
criterion
document document
b
a a
Voltage IEC 61000-2-2 IEC 61000-2-4 A
± 10 % ± 10 %

deviations Class 2
(> 60 s)
e d
Voltage dips IEC 61000-4-11 Volts Cycles IEC 61000-4-11 Volts Cycles C
Class 2 remaining Class 3 remaining
or 0 % 1 or 0 % 1
c
IEC 61000-4-34 70 % 25/30 IEC 61000-4-34 40 % 10/12
f c f
Class 2  Class 3
c
70 % 25/30
80 % 250/300
c

d
Short IEC 61000-4-11 Volts Cycles IEC 61000-4-11 Volts Cycles C
interruptions Class 2 remaining Class 3 remaining
or 0 % 250/ or 0 % 250/300
c c
300
IEC 61000-4-34 IEC 61000-4-34
f f
Class 2 Class 3
a
“Voltage deviation” is a supply voltage variation from the nominal supply voltage. Testing of voltage deviations
for three phase PDS requires increasing or reducing the voltage of all three phases simultaneously.
b
When the voltage is below nominal, the maximum output power ratings – speed and/or torque – may be
reduced, because they are voltage dependent.
c
“x/y cycles” means “x cycles for 50 Hz test“ and “y cycles for 60 Hz test”.
d
Opening of fuses is allowed for line-commutated converters operating in inverting mode.
e
Power ports with current rating ≥75 A, the method of the voltage drop test according to 7.5 of IEC 61400-
21:2008 may be used.
f
IEC 61000-4-11 applies to equipment rated less than or equal to 16 A and IEC 61000-4-34 to equipment rated
above 16 A.

---------------------- Page: 11 ----------------------
– 10 – 61800-3 Amend. 1 © IEC:2011
Table 6 – Minimum immunity requirements for voltage deviations, dips and short
interruptions on main power ports of rated voltage above 1 000 V of PDSs
Replace the existing Table 6 by the following new Table 6:
Table 6 – Minimum immunity requirements for voltage deviations, dips and short
interruptions on main power ports of rated voltage above 1 000 V of PDSs
Phenomenon Reference document Level Performance
(acceptance)
criterion
a
Voltage deviations IEC 61000-2-4 A
± 10 %
exceeding 1 min Class 3
a
Voltage deviations IEC 61000-2-4 + 10 % / – 15 % A
not exceeding 1 min Class 3
b d
Voltage dips IEC 61000-4-34 Volts Cycles C
remaining
0 % 1
c
40 % 10/12
c
70 % 25/30
c
80 % 250/300
b d
Short interruptions IEC 61000-4-34 Volts Cycles C
remaining
c
0 % 250/300
a
“Voltage deviation” is a supply voltage variation from the nominal supply voltage. Testing of voltage
deviations for three phase PDSs requires increasing or reducing the voltage of all three phases
simultaneously.
When considering voltage deviations, any voltage steps shall not exceed ± 12 % of nominal voltage and the
time between steps shall not be less than 2 s.
When the voltage is below nominal, the maximum output power ratings – speed and/or torque – may be
reduced, because they are voltage dependent.
b
Typical depths and durations of voltage dips are given in IEC 61000-2-8.
c
“x/y cycles” means “x cycles for 50 Hz test“ and “y cycles for 60 Hz test”.
d
Opening of fuses is allowed for line-commutated converters operating in inverting mode.

---------------------- Page: 12 ----------------------
61800-3 Amend. 1 © IEC:2011 – 11 –
Table 7 – Minimum immunity requirements for voltage deviations, dips and short
interruptions on auxiliary low voltage power ports of PDSs
Replace the existing Table 7 by the following new Table 7:
Table 7 – Minimum immunity requirements for voltage deviations, dips
and short interruptions on auxiliary low voltage power ports of PDSs
Phenomenon Reference Level Performance
document (acceptance)
criterion
Voltage deviations IEC 61000-2-4 ± 10 % A
exceeding 1 min Class 3
Voltage deviations not IEC 61000-2-4 +10 % to –15 % A
exceeding 1 min Class 3

Voltage dips IEC 61000-4-11 Volts Cycles C
or remaining
b
IEC 61000-4-34
0 % 1
a
40 % 10/12
a
70 % 25/30
a
80 % 250/300
Short interruptions IEC 61000-4-11 Volts Cycles C
Class 3 remaining
or
a
0 % 250/300
IEC 61000-4-34
b
Class 3
a
“x/y cycles” means “x cycles for 50 Hz test“ and “y cycles for 60 Hz test”.
b
IEC 61000-4-11 applies to equipment less or equal to 16 A and IEC 61000-4-34 applies to equipment
above 16 A.

5.2.4.1 Low voltage PDSs
Add, at end of the existing second paragraph of this subclause, the following new sentence:
During verification, the rated load condition shall be used.
5.2.4.2.1 Main power port
Add, at end of the existing second paragraph of this subclause, the following new sentence:
During verification, the rated load condition shall be used.

---------------------- Page: 13 ----------------------
– 12 – 61800-3 Amend. 1 © IEC:2011
Table 9 – Minimum immunity requirements for voltage unbalance and frequency
variations on main power ports of rated voltage above 1 000 V of PDSs
The instruction concerning the title of the table applies to the French text only.
a b c
Delete existing table footnotes " ", " " and " ".
Table 10 – Minimum immunity requirements for voltage unbalance and frequency
variations on auxiliary low voltage power ports of PDSs
The instruction concerning the first column of the table applies to the French text only.
a b c
Delete existing table footnotes " ", " " and " ".
Table 11 – Minimum immunity requirements for PDSs intended for use in the first
environment
Replace the existing Table 11 by the following new Table 11:
Table 11 – Minimum immunity requirements for PDSs
intended for use in the first environment
Port Phenomenon Level Performance
Basic standard for
(acceptance)
test method
criterion
Enclosure port ESD IEC 61000-4-2 4 kV CD B
or 8 kV AD
if CD impossible
Radio-frequency IEC 61000-4-3 80 MHz to 1 000 MHz A
electromagnetic field,
see also 5.3.4 3 V/m
amplitude modulated
80 % AM (1 kHz)
Radio-frequency IEC 61000-4-3 1,4 GHz to 2,0 GHz A
electromagnetic field,
See also 5.3.4 3 V/m
amplitude modulated
80 % AM (1 kHz)
Radio-frequency IEC 61000-4-3 2,0 GHz to 2,7 GHz A
electromagnetic field,
See also 5.3.4 1 V/m
amplitude modulated
80 % AM (1 kHz)
Power ports Fast transient-burst IEC 61000-4-4 a B
1 kV/5 kHz
(except auxiliary DC

b IEC 61000-4-5 c B
power ports below
Surge 1 kV
60 V)
1,2/50 µs, 8/20 µs

d
2 kV
Conducted radio-frequency IEC 61000-4-6 0,15 MHz to 80 MHz A
common mode
see also 5.3.4 3 V
80 % AM (1 kHz)
Power interfaces e IEC 61000-4-4 1 kV/5 kHz B
Fast transient-burst
Capacitive clamp
Ports for process e IEC 61000-4-4 0,5 kV/5 kHz B
Fast transient-burst
measurement Capacitive clamp

---------------------- Page: 14 ----------------------
61800-3 Amend. 1 © IEC:2011 – 13 –
Port Phenomenon Level Performance
Basic standard for
(acceptance)
test method
criterion
control lines and
Conducted radio-frequency IEC 61000-4-6 0,15 MHz to 80 MHz A
signal interfaces
e
common mode
see also 5.3.4 3 V
Auxiliary DC power
ports below 60 V 80 % AM (1 kHz)
CD : contact discharge AD: air discharge   AM : amplitude modulation
a
Power ports with current rating < 100 A: direct coupling using the coupling and decoupling network. Power ports
with current rating ≥ 100 A: direct coupling or capacitive clamp without decoupling network. If the capacitive
clamp is used, test level shall be 2 kV/5 kHz.
b
Applicable only to power ports with current consumption <63 A during light load test conditions as specified in
5.1.3. The rated impulse voltage of the basic insulation shall not be exceeded (see IEC 60664-1).
c
Coupling line-to-line.
d
Coupling line-to-earth.
e
Applicable only to ports or interfaces with cables whose total length according to the manufacturer's functional
specification may exceed 3 m.

---------------------- Page: 15 ----------------------
– 14 – 61800-3 Amend. 1 © IEC:2011
Table 12 – Minimum immunity requirements for PDSs intended for use in the second
environment
Replace the existing Table 12 by the following new Table 12:
Table 12 – Minimum immunity requirements for PDSs
intended for use in the second environment
Port Phenomenon Basic standard Level Performance
for test method (acceptance)
criterion

Enclosure port ESD IEC 61000-4-2 4 kV CD or 8 kV AD B
if CD impossible
Radio-frequency IEC 61000-4-3 80 MHz to 1 000 MHz A
electromagnetic field,
see also 5.3.4 10 V/m
amplitude modulated
80 % AM (1 kHz)
Radio-frequency IEC 61000-4-3 1,4 GHz to 2,0 GHz A
electromagnetic field,
see also 5.3.4 3 V/m
amplitude modulated
80 % AM (1 kHz)
Radio-frequency IEC 61000-4-3 2,0 GHz to 2,7 GHz A
electromagnetic field,
see also 5.3.4 1 V/m
amplitude modulated
80 % AM (1 kHz)
Power ports Fast transient-burst IEC 61000-4-4 a B
2 kV/5 kHz
(except auxiliary DC
b IEC 61000-4-5 c B
Surge 1 kV
power ports below
60 V)
1,2/50 µs, 8/20 µs d
2 kV
Conducted radio-frequency IEC 61000-4-6 0,15 MHz to 80 MHz A
e
common mode
see also 5.3.4 10 V
80 % AM (1 kHz)
Power Interfaces e IEC 61000-4-4 2 kV/5 kHz B
Fast transient-burst
Capacitive clamp
Signal interfaces e IEC 61000-4-4 1 kV/5 kHz B
Fast transient-burst
Capacitive clamp
Conducted radio-frequency IEC 61000-4-6 0,15 MHz to 80 MHz A
e
common mode
see also 5.3.4 10 V
80 % AM (1 kHz)
Ports for process e IEC 61000-4-4 2 kV/5 kHz B
Fast transient-burst
measurement Capacitive clamp
control lines
f IEC 61000-4-5 d,f B
Surge 1 kV
Auxiliary DC power

ports below 60 V 1,2/50 µs, 8/20 µs
Conducted radio-frequency IEC 61000-4-6 0,15 MHz to 80 MHz A
e
common mode
see also 5.3.4 10 V
80 % AM (1 kHz)
CD : contact discharge AD : air discharge AM : amplitude modulation

a
Power ports with current rating <100 A: direct coupling using the coupling and decoupling network. Power
ports with current rating ≥100 A: direct coupling or capacitive clamp without decoupling network. If the
capacitive clamp is used, the test level shall be 4 kV/5 kHz.
b
Applicable only to power ports with current consumption <63 A during light load test conditions as specified in
5.1.3. The rated impulse voltage of the basic insulation shall not be exceeded (see IEC 60664-1).
c
Coupling line-to-line.
d
Coupling line-to-earth.
e
Applicable only to ports or interfaces with cables whose total length according to the manufacturer's functional

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61800-3 Amend. 1 © IEC:2011 – 15 –
specification may exceed 3 m.
f
Applicable only to ports with cables whose total length according to the manufacturer's functional specification
may exceed 30 m. In the case of a shielded cable, a direct coupling to the shield is applied. This immunity
requirement does not apply to fieldbus or other signal interfaces where the use of surge protection devices is
not practical for technical reasons. The test is not required where normal functioning cannot be achieved
because of the impact of the coupling/decoupling network on the equipment under test (EUT).

Table 13 – Summary of emission requirements
Replace, in the second line of this table, the references "6.2.3.1 or 6.2.3.2" by "6.2.3.1 or
6.2.3.2 or 6.2.3.3".
Replace, in the third line of this table, the references "6.2.3.1 or 6.2.3.2" by "6.2.3.1 or 6.2.3.2
or 6.2.3.3".
Replace, in the fourth line of this table, the reference "6.2.3.3" by "6.2.3.4".
Replace, in the fifth line of this table, the reference "6.2.3.3" by "6.2.3.4".
6.2.3.1 Low-voltage public supply network – Equipment covered by IEC 61000-3-2
Replace, in the second paragraph, the existing words "is an equipment within the scope" by
“within the scope".
Add, at the end of this subclause, the following new subclause 6.2.3.2:
6.2.3.2 Low-voltage public supply network – Equipment covered by IEC 61000-3-12
When a PDS is within the scope of IEC 61000-3-12, the requirements of that standard apply.
However, when one or more PDSs are included in equipment within the scope of
IEC 61000-3-12, the requirements of that standard apply to the complete equipment and not
to the individual PDS. It is the responsibility of the equipment manufacturer to define the
boundary of the system or sub-sy
...