SW 5548 [RE-wrenches]

[Bob Ellison, Alternative Energy Systems]

I think twisting the DC wires help to reduce the induced current, and save
the pain of installing conduit.
I also think the conduit would need to be metal as I don't think plastic
conduit would provide any shielding but I could be wrong.

Later,
Bob

Is anybody going to the Vermont Energy Fair? Please reply off list.

RE. Ellison
Supplier of;
Diesel Generators &
Alternative Energy Systems & Supplies
34642 Countryman Road
Theresa, NY. USA
                              13691-2076



-----Original Message-----
From:	Jeffrey Wolfe, Global Resources [mailto:global at sover.net]
Sent:	Thursday, June 14, 2001 12:01 PM
To:	'RE-wrenches at topica.com'
Subject:	RE: SW 5548 [RE-wrenches]

Not related to a Trace installation, but in doing some house wiring I've
found 24V induced currents in wires. (Both ends of the wire (romex 12/2
w/G) disconnected, measured voltage on both ends. As I pulled the wire from
the wall to prove to myself that it was induced voltage, the voltage slowly
dropped off, until, you guessed it, lying on the floor in a pile there was
no voltage.)

Clearly this voltage had no amperage behind it, unless the cable it was
next too had a tremendous voltage. (which it did not, being house wiring).
Placing the wires in separate conduits (one for each + - pair) would solve
the "problem". Understanding it solved it fro me, and the cable went back
into place.

Jeff

Jeffery D. Wolfe, P.E.
Global Resource Options, LLP
A Woman-Owned Limited Liability Partnership
4 Kibling Hill Road
P.O. Box 51
Strafford, VT 05072
800-374-4494 Toll Free
802-765-4632 Phone
802-765-9983 Fax
global at sover.net
http://www.GlobalResourceOptions.com

----------
From: 	Jerry Caldwell[SMTP:solarcowboy at yahoo.com]
Reply To: 	RE-wrenches at topica.com
Sent: 	Tuesday, June 12, 2001 1:23 AM
To: 	RE-wrenches at topica.com
Subject: 	SW 5548 [RE-wrenches]

About a week ago a local inspector gave me a hard time
over a recent installation.  He asked me to
demonstrate to him that the SW5548 inverter could
power the backed up subpanel while not sending any
voltage to the grid.  I set the inverter to float mode
and showed him 120v at the subpanel.  When I went to
the ac disconnect, which was in the open position, my
meter showed ~24v ac hot to ground on the inverter
side of the switch.

I asked one of the tech support guys at Trace about
this and he said it was "noise" and that there was no
power behind the voltage.

Can anyone contribute a little more to this so I might
be able to better explain this in the future?

Jerry Caldwell
Light Energy Systems

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