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-   -   How best to run grounds with a plastic enclosure (http://www.homebrewtalk.com/f170/how-best-run-grounds-plastic-enclosure-287480/)

mcomb 12-15-2011 05:12 PM

How best to run grounds with a plastic enclosure
 
I'm building a fairly basic RIMS system based on one of PJs excellent schematics. I've noticed most people use metal enclosures with a ground lug, but my enclosure will be plastic. In this case, what's the accepted way to run grounds? An additional terminal block? Do I need to ground the casings of my switches and such that would normally contact a metal enclosure?

Thanks,
-Mike

mux 12-15-2011 05:22 PM

Ground everything that has a ground screw, terminal. Use this and don't need any sta- cons.
http://www.google.com/m/products/catalog?q=grounding+bar&oe=UTF-8&hl=en&client=safari&um=1&ie=UTF-8&tbm=shop&cid=18165721153248667934&near=Hinckley, %20UK&sa=X&ei=dzrqTuHvEue62wWEq_SYCA&ved=0CC4Q8wIw AA

BrewinBigD 02-07-2012 04:52 AM

dontforget that any ground wire you use has to be rated for the max current of your system

JonathanS 02-07-2012 06:48 PM

I used the standard 12x12x6 plastic enclosure and ordered a hoffman metal backplane from Platt - http://www.platt.com/platt-electric-supply/Enclosure-Panels-Back-For-Small-Type-1-3R-Enclosures/Hoffman/A12N12P/product.aspx?zpid=26884

Mounted it on plastic standoffs inside box. Used tap and die set to mount all internal components. Also got a 5-position ground bar that is mounted (grounded) to metal backplane. All external components (ie rtd quick disconnects, power input, power output) have ground continuity.


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