Jim Brown has a newer international version of the paper along with about 60 other interesting papers and powerPoints at his site.
http://www.audiosystemsgroup.com/publish.htm**********************************************
"Power and Grounding for Audio and Video Systems"
'A White Paper for the Real World – International Version'
Jim Brown
Audio Systems Group, Inc.
6/12/2013
Considerable confusion seems to surround power and grounding for audio and audio/
video systems. This “White Paper” is an attempt to cut through the confusion and
set out a collection of good engineering practice that is both safe and effective while not
requiring specialized or costly measures to avoid hum, buzz, noise, or RF interference.
The author believes that the recommendations and practices outlined herein are safe,
and that they conform to building codes in most of the world.
http://www.audiosystemsgroup.com/SurgeXPowerGround.pdf