View Full Version : Furman IT- 1220 question. Power strips, Ext. cords.
Can any one tell me;
What the recommended maximum length of an extension cord into a Furman
IT-1220?
Can I plug a power strip at the end of the extension cord?
Thanks,
nach
Scott Dorsey
August 20th 06, 05:29 PM
> wrote:
>What the recommended maximum length of an extension cord into a Furman
>IT-1220?
As long as you want. Just make sure that the cord is large enough that
you have less than a couple volts of drop throughout.
>Can I plug a power strip at the end of the extension cord?
Sure. Again, sum up the resistance of everything in the chain up to
the load. 100 feet of 2-conductor cable with #12 wire (up and back)
is .32 ohms. Figure the maximum current you're ever going to pull (15
amps? 20 amps), and use V=IR to calculate the drop. If it's more than
a couple ohms, use a larger cable. When you decrease the cable gauge by
three, you halve the resistance.
I don't know the resistive loss on the power strip, but the main problem
with the power strip is that it allows you to increase the load by plugging
more things in.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."
Thanks Scott, will do.
nach.
Scott Dorsey wrote:
> > wrote:
> >What the recommended maximum length of an extension cord into a Furman
> >IT-1220?
>
> As long as you want. Just make sure that the cord is large enough that
> you have less than a couple volts of drop throughout.
>
> >Can I plug a power strip at the end of the extension cord?
>
> Sure. Again, sum up the resistance of everything in the chain up to
> the load. 100 feet of 2-conductor cable with #12 wire (up and back)
> is .32 ohms. Figure the maximum current you're ever going to pull (15
> amps? 20 amps), and use V=IR to calculate the drop. If it's more than
> a couple ohms, use a larger cable. When you decrease the cable gauge by
> three, you halve the resistance.
>
> I don't know the resistive loss on the power strip, but the main problem
> with the power strip is that it allows you to increase the load by plugging
> more things in.
> --scott
> --
> "C'est un Nagra. C'est suisse, et tres, tres precis."
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