Re: House Circuits

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Jim Lux by way of Terry Fritz <teslalist-at-qwest-dot-net>" <jimlux-at-earthlink-dot-net>

If you tapped off before the "main breaker" you've got a problem there..
In any case, a fused disconnect at the source end wouldn't be a bad idea
(and some sort of disconnect/overcurrent protection is required by the code
anyway). They're not very expensive because it's basically a pair of
cartridge fuses in holders.


----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Tuesday, April 29, 2003 7:29 PM
Subject: Re: House Circuits


 > Original poster: "Bunnykiller by way of Terry Fritz <teslalist-at-qwest-dot-net>"
<bunikllr-at-bellsouth-dot-net>
 >
 > Tesla list wrote:
 >
 > >Original poster: "Jeremy Scott by way of Terry Fritz
 > ><teslalist-at-qwest-dot-net>" <supertux1-at-yahoo-dot-com>
 > >
 > >So,
 > >
 > >For those of you that use PDT's or potential
 > >transformers, once you've ballasted a la Home
 > >Depot 500ft spool, there's still a good 20-30A
 > >draw on the mains. Given the fact that most
 > >houses have 15A outlets, possibly 20A in some
 > >spots, how have you wired your power to handle
 > >this safely?
 > >
 > >I am considering installing a 40A circuit
 > >breaker in my box, with the appropriate rated
 > >wires to the garage and backyard. It's trivial
 > >to do, and might be good for other purposes
 > >as well. I have to check the local code to
 > >see what is allowable and what is not, possibly
 > >I will have an electrician do it.
 > >
 > >How have you done it? :)
 > >
 > >
 > >
 > hmmmm   how did I do it ???
 >
 > first off  I ran # 4 wire from the main box to the shop thru 1.5" grey PVC
 > ( 2 120 VAC system) to the shop for 240VAC ( opposed phase 120) ( well
that
 > makes sence;)  ) along with a nuetral and a ground ( 4 wire run)  and I
 > placed an extra ground at the entry point at the shop for extra
measure....
 > plus I have 2 more ground rods for the T - Coil for RF ground ...  But
here
 > is the clencher... I  tapped into the main box AT the main input to the
 > fuse system of the house... ( in other words... there is a direct feed
from
 > the mains to the shop) But ...  I do have a 70A breaker in the shop in
case
 > the system goes to ground or fault ( so I am protected in that sence)
 > ...  but then again I am pulling 60+ amps for the T coil too ;) if the
 > wires between the main box and shop short ....   HOLY MOLY we got a show
to
 > watch  ;)
 >
 > I think the resistance of the  #4 is limiting the current to the shop
 > tho...  doubt I'll ever get more than 75A to the shop....
 >
 >
 > Scot D
 >
 >