Chris:

The US mil practice for this stack would not use a crinkle washer at the
bottom of the stack. The top crinkle washer (mil would prefer a split ring
lockwasher) should be enough to provide the axial compression loading on the
stack. The baseplate-to-solder terminal interface should be smooth, clean
and conductive, hence no crinkle washer needed to cut into the surfaces.
Also, the crinkle points are relative small points of contact, so a heavy
fault current might melt the tiny points.

Regards,

Ed
 
:-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-)
Ed  Price
ed.pr...@cubic.com
Electromagnetic Compatibility Lab
Cubic Defense Systems
San Diego, CA.  USA
858-505-2780 (Voice)
858-505-1583 (Fax)
Military & Avionics EMC Services Is Our Specialty
Shake-Bake-Shock - Metrology - Reliability Analysis
:-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-)


> -----Original Message-----
> From: James, Chris [mailto:c...@dolby.co.uk]
> Sent: Monday, October 09, 2000 5:15 AM
> To: 'Colgan, Chris'; 'Emc-Pstc' (E-mail)
> Subject: RE: earth bonding stud
> 
> 
> 
> Chris,
> Sounds good. We use solder terminals with integral star. Make 
> sure the wire
> to the solder terminal is hooked thru and wrapped round the lug before
> soldering i.e. so that it is mechanically secured as well as soldered.
> 
> Chris
> 
> -----Original Message-----
> From: Colgan, Chris [mailto:chris.col...@tagmclarenaudio.com]
> Sent: 09 October, 2000 10:42 AM
> To: 'Emc-Pstc' (E-mail)
> Subject: earth bonding stud
> 
> 
> 
> Hello group
> 
> Having only ever dealt with Class II double insulated 
> products, we are going
> to produce a Class I earthed product.  We have an M4 stud in 
> the baseplate
> and I have to spec the method of connecting the stud to the 
> IEC mains inlet
> to provide chassis bonding to earth.
> 
> I was going to suggest the following "stack" of parts:
> 
> M4 crinkle washer, M4 solder terminal, M4 crinkle washer, M4 
> Nyloc nut.
> 
> Does anyone think that this might prove unsuitable?
> 
> Regards
> 
> Chris Colgan
> EMC & Safety
> > TAG McLaren Audio Ltd
> The Summit, Latham Road
> Huntingdon, Cambs, PE29 6ZU
> United Kingdom
> > * Phone: +44 (0)1480 415627
> > * Fax:     +44 (0)1480 415689
> > * Mailto:chris.col...@tagmclarenaudio.com
> > * http://www.tagmclarenaudio.com
> > 
> 
> 
> **************************************************************  
>            Please visit us at www.tagmclarenaudio.com
> **************************************************************
> 
> The contents of this E-mail are confidential and for the exclusive
> use of the intended recipient. If you receive this E-mail in error,
> please delete it from your system immediately and notify us either
> by E-mail, telephone or fax. You  should not  copy, forward or 
> otherwise disclose the content of the E-mail.
> 
> TAG McLaren Audio Ltd
> The Summit, 11 Latham Road
> Huntingdon, Cambs, PE29 6ZU
> Telephone : 01480 415600 (+44 1480 415600)
> Facsimile : 01480 52159 (+44 1480 52159)
> 
> **************************************************************  
>            Please visit us at www.tagmclarenaudio.com
> **************************************************************
> 



-------------------------------------------
This message is from the IEEE EMC Society Product Safety
Technical Committee emc-pstc discussion list.

To cancel your subscription, send mail to:
     majord...@ieee.org
with the single line:
     unsubscribe emc-pstc

For help, send mail to the list administrators:
     Jim Bacher:              jim_bac...@mail.monarch.com
     Michael Garretson:        pstc_ad...@garretson.org

For policy questions, send mail to:
     Richard Nute:           ri...@ieee.org

Reply via email to