Re: [PSES] Conducted Immunity test for EMC

[T.Sato]

On Tue, 27 Feb 2024 08:39:10 -,
  "James Pawson (U3C)"  wrote:

> This looks like distance between injection point and EUT.
> 
> This diagram is for direct injection through a resistor with no CDN. The 
> resistor forms the ‘C’ or coupling part of the CDN, and the “decoupling 
> device” forms the ‘D’ of decoupling part.

Yes, and it is the horizontal distance, not the cable length.

Clause 7.8 of the standard clearly says:
The injection point shall be located between 0,1 m and 0,3 m from
the geometric projection of the EUT on to the reference ground plane.

Tom


> From: Youngsik Kim  
> Sent: Tuesday, February 27, 2024 7:57 AM
> To: EMC-PSTC@LISTSERV.IEEE.ORG
> Subject: [PSES] Conducted Immunity test for EMC
>  
> Hi All
>  
> I'd like to inquire about the conduction resistance test.
> What is L in the picture below?
> 1. Distance between CDN and EUT
> 2. Length of cable between CDN and EUT

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Re: [PSES] Conducted Immunity test for EMC

[James Pawson (U3C)]

Hi Kim,

 

This looks like distance between injection point and EUT.

 

This diagram is for direct injection through a resistor with no CDN. The 
resistor forms the ‘C’ or coupling part of the CDN, and the “decoupling device” 
forms the ‘D’ of decoupling part.

 

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: Youngsik Kim  
Sent: Tuesday, February 27, 2024 7:57 AM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: [PSES] Conducted Immunity test for EMC

 

Hi All

 

I'd like to inquire about the conduction resistance test.
What is L in the picture below?
1. Distance between CDN and EUT
2. Length of cable between CDN and EUT

 

 



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