Thanks for weighing in Jea, as I know from your posts that you've been around the block a time or two with this sort of thing.
Unfortunately, I think your opinion lines up with mine and gives me reason to believe that a multiple circuit (dedicated or not) might cause more issues than it would solve.
BTW, I noticed your comments were specific to equipment connected via IC's. What about the notion that in a metal rack, ALL the equipment loaded into it is interconnected...whether interconnects are present or not? Or am I reading too much into, or not properly understanding,this publication from Middle Atlantic?
http://www.middleatlantic.com/pdf/PowerWhitePaper4_07.pdf
One blurb that jumped out at me (pg 29): "A problem will exist due to the fact that all equipment with a 3-prong (grounded) plug has the power cord ground conductor bonded to
the chassis. When this rackmounted equipment is screwed to the rackrail, an inadvertent ground connection will be present, defeating
the isolation!"
Unfortunately, I think your opinion lines up with mine and gives me reason to believe that a multiple circuit (dedicated or not) might cause more issues than it would solve.
BTW, I noticed your comments were specific to equipment connected via IC's. What about the notion that in a metal rack, ALL the equipment loaded into it is interconnected...whether interconnects are present or not? Or am I reading too much into, or not properly understanding,this publication from Middle Atlantic?
http://www.middleatlantic.com/pdf/PowerWhitePaper4_07.pdf
One blurb that jumped out at me (pg 29): "A problem will exist due to the fact that all equipment with a 3-prong (grounded) plug has the power cord ground conductor bonded to
the chassis. When this rackmounted equipment is screwed to the rackrail, an inadvertent ground connection will be present, defeating
the isolation!"