10 May
2014
10 May
'14
10:06 p.m.
On Friday, May 09, 2014 07:14:53 PM Will Godfrey wrote:
On Fri, 09 May 2014 13:01:57 -0500
Reuben Martin <reuben.m(a)gmail.com> wrote:
Perhaps I assume too much thinking the proper handling of power and wiring is
common knowledge. I deal with power issues on such a regular bases in my job,
that I sometimes forget that all too often people are messing with power who
have a very poor understanding of what they are doing.
I work in large event audio-video-lighting production, so it's very common for
me to be encounter power hazards that would probably give most people on this
list the creeps.
-Reuben
On Friday, May 09, 2014 06:05:47 AM Ralf Mardorf
wrote:
Link to
highly dangerous item not repeated!
How on earth is this legal? Do you *really* think most people will be savvy
enough to know that you're supposed to connect the tab to a proper earth?
Would they even know what a proper earth was?
There is absolutely no way of ensuring the earth is ever connected at all! A
properly designed 3pin connector ensures the earth is always connected
first, and disconnected last. It's the *only* safe way to work. On Thu, 2014-05-08 at 18:02 -0500, Reuben Martin
wrote:
I'm not suggesting to cut the ground pin off. When you use an AC ground
lift they come with a metal ring to re-direct the ground connection so
that equipment using different power sources can share a common ground. On Friday, May 09, 2014 12:44:00 AM Jörn
Nettingsmeier wrote:
> On 05/08/2014 09:30 PM, Jonathan E Brickman wrote:
> > AC power ground lifts sometimes have helped, sometimes
>
> There is no such thing as an AC power ground lift. The correct term,
> and
> please don't take it personally, is _criminal_ _incompetence_.
It sometimes makes sense to lift the AC ground if you are pulling
power
from more than one source. (To prevent ground loops) As long
everything
is grounded to the remaining source correctly.
Potential difference by getting the power from different main jacks or
experiencing ground loops, because you don't care about a correct
grounding are no excuse to give a life-endangering "hint".