Whoops wrong standard!

My brain went into autocorrect.

Thanks to John W for the catch



From: James Pawson (U3C) <ja...@unit3compliance.co.uk>
Sent: Monday, September 9, 2024 9:33 AM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] : IEC 61000-2-4 scope



Hi Ralph



ISO 10605 tends to be used for ESD in automotive. It is still based on the HMM 
generator used in IEC 61000-4-2 but with four different discharge networks and 
slightly different test methods.



You might be able to find an older edition via Google for research purposes.



If the client’s customer has it in their (commercial not legal) procurement 
specification then I wish you luck in trying to argue about applicability!  😊



All the best

James



James Pawson

Managing Director & EMC Problem Solver



Unit 3 Compliance Ltd

EMC : Environmental & Vibration : Electrical Safety : CE & UKCA : Consultancy



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From: Charlie Blackham <char...@sulisconsultants.com>
Sent: Saturday, September 7, 2024 9:02 AM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] : IEC 61000-2-4 scope



This standard has nothing to do with generating AC power from an isolated 
source on a vehicle as that is not an “Industrial Location”



Some more information in the preview, 
webstore.iec.ch/en/iec_catalog/product/preview/?id=L3B1Yi9wZGYvcHJldmlldy9pbmZvX2llYzYxMDAwLTItNHtlZDMuMC5STFZ9ZW4ucGRm
 
<https://webstore.iec.ch/en/iec_catalog/product/preview/?id=L3B1Yi9wZGYvcHJldmlldy9pbmZvX2llYzYxMDAwLTItNHtlZDMuMC5STFZ9ZW4ucGRm>

And in this article 
https://comsys.se/our-adf-technology/power-quality-iec-61000/



Best regards

Charlie



Charlie Blackham

Sulis Consultants Ltd

Tel: +44 (0)7946 624317

Web: https://sulisconsultants.com/

Registered in England and Wales, number 05466247



From: Ken Javor <ken.ja...@emccompliance.com 
<mailto:ken.ja...@emccompliance.com> >
Sent: 06 September 2024 22:47
To: EMC-PSTC@LISTSERV.IEEE.ORG <mailto:EMC-PSTC@LISTSERV.IEEE.ORG>
Subject: Re: [PSES] : IEC 61000-2-4 scope



Don’t have the standard but excerpted the following off a site describing the 
standard.  Pertinent portion underlined.





IEC 61000-2-4:2024

Electromagnetic compatibility (EMC) - Part 2-4: Environment - Compatibility 
levels in power distribution systems in industrial locations for low-frequency 
conducted disturbances



Standard Details

IEC 61000-2-4:2024 is available as IEC 61000-2-4:2024 RLV which contains the 
International Standard and its Redline version, showing all changes of the 
technical content compared to the previous edition.

IEC 61000-2-4:2024 is related to conducted disturbances in the frequency range 
from 0 kHz to 150 kHz. It gives compatibility levels in differential mode (L-L 
and L-N) for industrial locations, with a nominal voltage up to 35 kV and a 
nominal frequency of 50 Hz or 60 Hz.
NOTE 1 Industrial locations are defined in 3.1.8.
Power distribution systems on ships, aircraft, offshore platforms and railways 
are not included.





--



Ken Javor

Ph: (256) 650-5261





From: Ralph McDiarmid <rmm.priv...@gmail.com <mailto:rmm.priv...@gmail.com> >
Reply-To: <rmm.priv...@gmail.com <mailto:rmm.priv...@gmail.com> >
Date: Friday, September 6, 2024 at 1:15 PM
To: <EMC-PSTC@LISTSERV.IEEE.ORG <mailto:EMC-PSTC@LISTSERV.IEEE.ORG> >
Subject: Re: [PSES] : IEC 61000-2-4 scope



My turn to ask a question to the group of experts.



Reference:

IEC 61000-2-4:2024

Electromagnetic compatibility (EMC) - Part 2-4: Environment - Compatibility 
levels in power distribution systems in industrial locations for low-frequency 
conducted disturbances



My client would like to know if standard IEC 61000-2-4 is applicable to an 
inverter that is intended for permanent installation in a motor vehicle.  The 
inverter has no connection to a.c. mains and does not have an a.c. input power 
port.  It’s merely a 24Vdc to 230Vac/50Hz inverter.



I think this IEC standard is clearly out of scope for this class of equipment, 
but if client’s customer insists (a big automotive manufacturer) I’d like to be 
able craft a technical justification to waive application of the standard.



The standard appears only to address conducted disturbances which may be 
present on non-public (industrial) a.c. power networks and the EMC immunity of 
equipment connected to those networks.



Thank you,





Ralph



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