[muglo] Re: Storm Protection
- From: SPELL BOUND PUBLISHING <spellboundpub@xxxxxxxxxx>
- To: muglo@xxxxxxxxxxxxx
- Date: Wed, 16 Jun 2004 12:28:27 -0400
A nicely detailed/illustrated explanation on GFI operation expanding on=20=
Tee's excellent comments can be found at:
http://hyperphysics.phy-astr.gsu.edu/hbase/electric/gfi.html
Don't forget to check the links at the bottom.
=97LK
On Tuesday, June 15, 2004, at 07:59 PM, Tee Cashmore wrote:
> Susan N. Dunbar wrote:
>
>> Looking at the information that Eric referred to in his google =
search,
>> especially the Lightning and Surge protection PDF,
>> to me it looks as though surge protectin can be installed at the main
>> service panel, as point of entry to the apartment.
>>
>> Please help me understand if this is not correct.
>>
> Only if the owner of the building agrees and many will not allow such
> changes, even though they also benefit. In most cases an apartment
> building has a 400 Volt plus lead into a "Busbar", which is then =
routed
> to each meter for each apartment. Any exterior protection is quite
> expensive, usually $2000 plus plus just for the equipment and requires
> Hydro approval & inspection.
> Surge protection via a good quality power bar is the least expensive
> protection, followed by special red coloured outlets in the wall;
> you've probably seen them in hospitals, which require them at every =
bed
> location.
> Lightning protection is rarely needed in any modern building if the=20
> main
> electrical panel is well grounded. The biggest cause of computer
> problems comes from "Brown Outs", which occur often. Ground Fault
> Circuit Interrupt (GFCI) outlets; the ones with 2 buttons on them
> usually installed in bathrooms; work on the principle of variation of
> current, similar to power bars, and will shut off the power if a fault
> is detected.
> Panamax surge protectors work on the above system and are a good, wise
> investment.
> I am a "Home Inspector" and know of what I speak. BTW only 17% of the
> thousands of homes that I have inspected over the last 20 years are
> wired correctly, including new ones and especially apartment =
buildings.
> TTFN,
> TeeC
>
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