International Standards and Conformity Assessment for all electrical, electronic and related technologies



Reference EN 61000-4-30:2009
Title Electromagnetic compatibility (EMC) - Part 4-30: Testing and measurement techniques - Power quality measurement methods
Project Number 21375
Abstract/Scope IEC 61000-4-30:2008 defines the methods for measurement and interpretation of results for power quality parameters in 50/60 Hz a.c. power supply systems. Measurement methods are described for each relevant parameter in terms that give reliable and repeatable results, regardless of the method's implementation. This standard addresses measurement methods for in situ measurements. Measurement of parameters covered by this standard is limited to voltage phenomena that can be conducted in a power system. The power quality parameters considered in this standard are power frequency, magnitude of the supply voltage, flicker, supply voltage dips and swells, voltage interruptions, transient voltages, supply voltage unbalance, voltage harmonics and interharmonics, mains signalling on the supply voltage and rapid voltage changes. Depending on the purpose of the measurement, all or a subset of the phenomena on this list may be measured. IEC 61000-4-30:2008 gives measurement methods and appropriate performance requirements, but does not set thresholds. The effects of transducers inserted between the power system and the instrument are acknowledged but not addressed in detail in this standard. Precautions on installing monitors on live circuits are addressed. IEC 61000-4-30:2008 has the status of a basic EMC publication in accordance with IEC Guide 107. This second edition cancels and replaces the first edition published in 2003. This edition includes the following significant technical changes with respect to the previous edition: - Adjustments, clarifications, and corrections to class A and class B measurement methods. - A new category, class S, intended for survey instruments, has been added. - A new Annex C gives guidance on instruments.


Current Stage code 6060
Current Stage code date 2009-01-14
Current Stage code deadline 2009-09-01
Deadline date for vote  


Directive(s) EMC related (2004/108/EC)
Mandate(s) M/490
Order Voucher  


IEC Technical Body IEC/SC 77A
Reference Document IEC 61000-4-30:2008 (EQV)
ICS 33.100.99 - Other aspects related to EMC
Keywords Electromagnetic compatibility; EMC; Power quality; Measurement
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2009-01-14 2009-09-01 export to doc file  EN  FR  DE
5099 2008-12-01 2009-02-01  
5061 2008-10-29 2008-12-01  
5060 2008-09-09 2008-09-23 export to doc file  EN
5020 2008-06-27 2008-09-05  
3090 2008-02-22 2008-03-31  
5060 2007-12-18 2008-01-07 export to doc file  EN
5020 2007-07-13 2007-12-14  
1090 2007-07-10 2007-07-13  

Implementation Dates

date of Ratification (DOR) (1) 2008-12-01
date of Availability (DAV) (2) 2009-01-14
date of Announcement (DOA) (3) 2009-03-01
date of Publication (DOP) (4) 2009-09-01
date of Withdrawal (DOW) (5) 2011-12-01


Supersedes EN 61000-4-30:2003
Superseded by FprEN 61000-4-30:2014
Normative reference (6) IEC 60050-161:1990
EN 61000-2-2:2002
EN 61000-2-4:2002
IEC 61000-3-8:1997
EN 61000-4-4:2004
EN 61000-4-7:2002
EN 61000-4-15:1998
EN 61180-1:1994

(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved

(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat

(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level

(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement

(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn

(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.