SW 5548 [RE-wrenches]
Bob Ellison, Alternative Energy Systems
ellison at gisco.net
Thu Jun 14 16:16:32 PDT 2001
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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