Normes CEM

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    Je _sais_ concevoir un circuit correct du point de vue de la CEM,


    les alimentations de PC made in China, d'un point de vue de la CEM,



    Mon circuit actuel comporte :





    - deux alimentations 420 V (200 mA, transformateur + redressement

    - deux alimentations 350 V (200 mA, transformateur + redressement


    La prise secteur comporte tout ce qu'il faut en ferrites et

    alimentations et des alimentations vers le secteur. Le tout est dans

    ventilation choisis.



    n'en serait plus rentable du tout.



    Cordialement,

    JKB

--  


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Re: Normes CEM









Regardes ton porte monnaie avant :-)


Une solution simple :

filtres sur tous les fils qui entrent-sortent ..

Re: Normes CEM
Le 29 Apr 2014 08:00:21 GMT,


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    JKB

--  


=> http://grincheux.de-charybde-en-scylla.fr
=> http://loubardes.de-charybde-en-scylla.fr

Re: Normes CEM


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....

la
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Hello !


Pour le marquage C E il faut montrer que le produit est conforme aux exigen







 ... c'te farce du marquage C E !
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Re: Normes CEM
Le Tue, 29 Apr 2014 01:36:39 -0700 (PDT),



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    ouverte...).

    JKB

--  


=> http://grincheux.de-charybde-en-scylla.fr
=> http://loubardes.de-charybde-en-scylla.fr

Re: Normes CEM


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Bonjour JKB,





http://alciom.com/en/publications/white-papers.html

Bien cordialement,
Robert Lacoste
www.alciom.com


Re: Normes CEM


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 30 000 ?.



DIRECTIVE COMPATIBLITE ELECTROMAGNETIQUE
Directive applicable

?cembre  


tive qui est  

ire  
allant jusqu?au 20 juillet 2009 abroge et remplace la directive C
EM  
89/336/CEE.




lectroniques. Ce  

sitoire et remplace le  



Champ d?application




ou toute combinaison de  

ionnelle  

ceptible de produire  

 peut  


 de  


Exemple : cartes plugs pour les ordinateurs






dispositifs, qui sont  




ensemble de machines  
sur des sites de fabrication
Exigences essentielles
Les exigences de cette directive remplissent un double objectif.





tions  


s  






 le respect de  

posent (appareils,  
machines?).




durant tout le temps de fonctionnement de l?installation fixe.



CE.

****************************************


tre  


tallation fixe et  

it une  


la fabrication mise en oeuvre par le fabricant (annexe II directive  

 pour la  

(annexe III).

Divers

irective  


s, notamment pour  


dans des installations fixes).
? Installations fixes : documentation relative aux bonnes pratiqu
es  


ne installation fixe :  

? Notice d?utilisation obligatoire.



Re: Normes CEM
Le Tue, 29 Apr 2014 19:40:05 +0200,



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    qu'elle n'est pas claire.

    Remarques dans le texte.

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    Pas clair du tout...



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    JKB

--  


=> http://grincheux.de-charybde-en-scylla.fr
=> http://loubardes.de-charybde-en-scylla.fr

Re: Normes CEM

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rective qui est

itoire
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e CEM




?lectroniques. Ce

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les ours blanc sur la banquise)
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ute combinaison de

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susceptible de produire

ent peut

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/ou  
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par conduction sur ses fils qui entrent ou sortent ou par rayonnement  

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es dispositifs, qui sont




, ensemble de machines
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rbations


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ans le respect de

composent (appareils,
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es CE.
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?tre


installation fixe et

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s  

ble  
que tu peux brancher quelque part un jour et ailleurs un autre jour. Par  


sager de  

 d'alarme.
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e

? pour la

te (annexe III).
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e directive


ions, notamment pour


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iques


s une installation fixe :

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Richard


Re: Normes CEM
Le 29/04/2014 21:18, jules a ecrit :

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--  
http://www.franck-pissotte.fr/ vide grenier: 300 livres, 600 revues
http://www.pascaland.org/ compilateurs, sources, liens langage pascal, delphi
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Re: Normes CEM

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t vfd,

quand
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? Notice d?utilisation obligatoire.

rdiction de  

ien au  
micro-ondes.

Richard


Re: Normes CEM
Le Tue, 29 Apr 2014 22:21:59 +0200,

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    mauvaise terre. Il faut encore que je le peaufine, mais il
    fonctionne assez bien.

    JKB

--  


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Re: Normes CEM
On Tue, 29 Apr 2014 20:45:02 +0000 (UTC), JKB

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tu teste comment ?

--  
pas de turlututu. apres l'@robase

Re: Normes CEM
Le Wed, 30 Apr 2014 05:53:17 +0200,

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    qui passe dans le drain permet d'alimenter la bobine d'un relais.
    S'il n'y a pas de terre, le potentiel de la grille est celui du
    drain.

    Je cherche un truc un peu plus subtil, mais je n'ai pas encore



    le fusible.

    JKB

--  


=> http://grincheux.de-charybde-en-scylla.fr
=> http://loubardes.de-charybde-en-scylla.fr

Re: Normes CEM



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effectivement je ne vois pas trop comment faire autrement qu'en  



Earth Fault Indicator
http://www.learningelectronics.net/circuits/earth-fault-indicator.html

Earth Fault Indication Circuit Diagram
http://www.electroschematics.com/4645/earth-fault-indicator-5/

Earth Fault Indicator
http://tinyurl.com/lc69mee

Simple Earth Leakage Circuit Breaker. The circuit will immediately  
switch off the mains on detecting a missing earth connection or a  
current leakage through the appliance body.
http://homemadecircuitsandschematics.blogspot.fr/2011/12/make-simple-earth-leakage-circuit.html



Re: Normes CEM

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principe.



--  
pas de turlututu. apres l'@robase

Re: Normes CEM
Le Wed, 30 Apr 2014 12:45:11 +0200,

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    aussi faible que possible sur la ligne de terre qui ne sert que de
    protection. Que cette terre soit directe ou passe par un autre







    protections. C'est tout ce que je recherche.

    JKB

--  


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=> http://loubardes.de-charybde-en-scylla.fr

Re: Normes CEM
On Wed, 30 Apr 2014 11:01:44 +0000 (UTC), JKB

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mais pour autant quelques volts entre le neutre et la terre ne
signifient pas que la terre est mauvaise, j'ai le cas chez moi, donc
ta mesure est plutot hasardeuse.
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trompe ta mesure de terre.


un equipement en situation d'utilisation me laisse encore dubitatif
:-/

--  
pas de turlututu. apres l'@robase

Re: Normes CEM
Bonjour,




minime.
J'ai perdu ainsi un mois de production , avant qu'ils ne trouve la cause.  




que 50V, imaginez 100 ou 200V ! et ERDF n'avait rien vu.......



snipped-for-privacy@4ax.com...
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Re: Normes CEM
Le Wed, 30 Apr 2014 15:09:38 +0200,

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    courant vers la terre, je refuse simplement de mettre l'appareil
    sous tension.

    JKB

--  


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