Text 2392, 54 rader
Skriven 2015-06-05 21:58:00 av Ed Vance (14069.windowsa)
   Kommentar till text 2355 av Sean Dennis (1:18/200)
Ärende: Re: Found New Hardware
==============================
06-03-15 17:45 Sean Dennis wrote to Ed Vance about Found New Hardware

 SD> @MSGID: <55702B02.14034.windowsa@capcity2.synchro.net>
 EV> You make it sound like a UPS does the same as a wall wart does, robbing
 EV> A.C. power when the device it is for is turned off.
 EV> The UPS keeping the battery charged up when it is turned off is what I
 EV> remember reading when I got my first UPS.

 SD> Uhm, every electrical device that is plugged into an active
 SD> outlet will draw a little current even when it's off.  The UPS
 SD> isn't actively charging the battery when you turn the UPS off.
 SD> The UPS has to be on in order to actively charge the battery...

Howdy! Sean,

You made me think of the day I was moving my Ham Radio gear to the
house I rented just after my marriage.

I had soldered 12 guage solid wire to a corner fence post by wrapping
it around the post just below the cap to use as a Ground for the Ham
gear.  (I used a propane torch)

As I finally got the wire unwrapped I got shocked.
I measured the voltage between the dangling wire and the fence post and
the meter read 110 volts A.C.

The best I can figure out is that the shock was caused by the two
ceramic capacitors across each leg of the A.C. line where the line cord
enters the chassis, and the other leg of the caps go to the metal
chassis.

Everything in the Ham Shack was still plugged in the wall outlet but
nothing was turned ON, so best I can figure out it was the line power
going through those small filter caps that sent the 'AWAKING' to me.

I didn't measure the current, though I'd think it probably was very
small or the ceramic on those capacitors would had been broken.

Ever since then when I wanted to remove a ground wire I will unplug
everything connected to the A.C. Power Line, disconnect the ground wire
that goes outside from the piece of equipment its screwed on to,
AND THEN remove the wire from off the ground rod.

Lesson learned.
73
P.S. I've been thinking of reading how much current comes out of the
UPS sockets when I have it turned OFF, but haven't gotten ROUNDTUIT yet

Things to do..........

... Don't play stupid with me! I'm better at it!
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