I have asked for the specific standard and clause that the inspector is using 
to declare our cart is unacceptable for installing components on the door.  The 
product is a mobile control station for use in industrial process control.  It 
contains a server and UPS in the main enclosure, with a Control Logix 
controller, Ethernet router and 24VDC power supply on the door.  Main incoming 
power is terminated in the main enclosure through a 16A breaker and protective 
earth ground is permanently connected to the stainless steel enclosure.  The 
power is then run to the UPS in the main enclosure bottom, then out of the UPS 
to the door for distribution to all the components through 5A breakers.  This 
also includes coming back across the door hinge to the server and display.  A 
separate permanently attached ground braid is run between the main enclosure 
and the door, to connect protective earth to the door.  Guess I have to look at 
the EN60204 and see if I can find any problems with our wiring practices.

 

John

 

From: [email protected] [mailto:[email protected]] On Behalf Of John Allen
Sent: Monday, December 21, 2009 9:10 PM
To: Doug Nix
Cc: [email protected]
Subject: Re: [PSES] Electrical components on hinged panels

 

Pretty sure it's allowed but would have to verify.  EN60204 should be the 
Standard for the panel.  Ask the inspector to point to a Standard and clause.




On Dec 21, 2009, at 5:50 PM, Doug Nix <[email protected]> wrote:

        John,

         

        Is this industrial equipment?

         

        -- 
        Doug Nix, A.Sc.T.
        IEEE PSES Toronto Chapter             

        Toronto Section, Ontario, Canada
        
        [email protected] 

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Humanity. Celebrating 125 Years of Engineering the Future. 
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        On 21-Dec-09, at 17:51 , John Cochran wrote:

        
        
        

        Do you know if there is a CE compliance issue with attaching electrical 
components to a hinged door?  For ease of construction, we often attach 
components to the access door of our industrial control panel enclosures.  UL 
has evaluated our construction methods and certified us a UL508 Panel Shop.  
Criteria is that a solid earth ground is attached to the door, and all 
electrical cables are protected against damage.  We are being told by a 
customer that electrical components are never allowed on a door, in compliance 
with CE.  If UL finds it acceptable, I am not sure why it would be unacceptable 
for Europe.  I have seen many enclosures in Europe with electrical components 
on a removable panel or door.  Is the inspector exercising personal preference, 
or is there a compliance standard that backs up this decision to reject our 
wiring practices?

         

        Thanks,

        John Cochran

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