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Residential Grounding and Surge Suppression Jim Redelfs 04-20-2008
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Posted by bud-- on April 21, 2008, 6:07 pm
salty@dog.com wrote:
> wrote:
>
>> John Ross wrote:
>>>
>>> bud-- wrote:
>>> <snip>
>>>> One of the suppressors I am using has a (total) rating of 1770J,
>>>> 90,000A. It cost under $30 and has a protected equipment warrantee. I
>>>> don't plan on ever replacing it.
>>> Hi bud, I want one of those. What brand is it?
>> I bought a couple of different Belkin suppressors that were on sale at
>> different times at Micro Center, a chain I like with only about 20
>> stores (but no doubt online).
>
> But, but , but... Why would you buy suppressors at a retail store?
> According to W_Tom, you own the factory that makes them!

The rotten bastards are all on strike. Even the illegals. They were
infiltrated by communists and Democrats and now think I shouldn't be
allowed to abuse them. I have contracted with an Italian social
organization to fix the problem.

--
bud--




Posted by w_tom on April 21, 2008, 9:25 pm
> The rotten bastards are all on strike. Even the illegals. They were
> infiltrated by communists and Democrats and now think I shouldn't be
> allowed to abuse them. I have contracted with an Italian social
> organization to fix the problem.

NJ unemployment insurance is only good for 13(?) weeks. Tony
Saprano could probably use the work about now.

Posted by Jeff on April 20, 2008, 5:18 pm
Sounds like you are in pretty good shape. Other than a direct lightning
strike to your house, you will probably survive most spikes that come into
your house from the power lines. I always leave my external hard drive
completely disconnected as a precaution as well. You do back up your
data -- right.

> When my home was built in 1991, I built a grounding array within 4-feet
> of the service entrance meter and panel. It consists of three,
> 5/8-inch, copper-clad, 8-foot ground rods. They are placed in a "goal
> post" configuration with the two verticals about 7-feet apart and one
> crossing the top of them, perhaps 6-inches below the tops of the rods.
> There is probably a 18-inches of earth cover. All components are bonded
> together with two, #6 solid copper wires and two make the final run to
> the meter box.
>
> Given midwest weather, I am confident that we have had plenty of
> transient spikes in the intervening years but I have experienced no
> (apparent) damage.
>
> During this time, my computer system has been ostensibly protected by a
> strip-type surge suppressor:
>
> <http://apc.com/resource/include/techspec_index.cfm?base_sku=NET7T>
>
> I recently installed an Intermatic (whole-house) surge suppressor.
>
> <http://www.intermatic.com/Default.asp?action=prod&pid=339>
>
> I have been following the Intermatic thread with some interest.
> Admittedly, it got a bit "deep" when the engineers began debating.
> Still, I gathered much good information, not the least of which was that
> MOV (metal oxide varistor) surge suppressors "wear out" over time - that
> their efficacy diminishes with each surge.
>
> Is it time to replace my strip-type suppressor? The LEDs indicate
> nominal operation and protection, for whatever that's worth. TIA.
> --
> :)
> JR



Posted by Jim Redelfs on April 21, 2008, 10:15 am
In article

> You do back up your data -- right.

Right.

I have been backing-up my stuff since my very first hard-disk drive. It
took an expensive stack of high-density, 3-1/2-inch floppy disks (1440k)
to back up my very first hard-disk drive, a 20 megabyte internal. It
took a good portion of a day playing "musical diskettes" to get the job
done.

Of course, 2400 baud was the latest and, when I finally replaced my 20
megabyte drive, the Quantum 210 MB raw drive was $950!

Today, I have my 250 gigabyte Seagate "Barracuda", internal hard-disk
drive FireWire-connected to two, 250 gigabyte, LaCie "Porsche" external
drives.

Apple's Mac OS X 10.5.2 "Leopard" includes "Time Machine", a fully
automatic, virtually transparent back-up utility that runs continuously
in the background. After the initial, global back-up, Time Machine
saves hourly backups for the past 24 hours, daily backups for the past
month, and weekly backups for everything older than a month until the
target volume is full. It's awesome.

Everything is "in" my hard-disk drive now. Everything that is important
to me: My photography, my music (more and more of it downloaded) and my
money (Quicken).

Hard-disk drives and back-up solutions are so CHEAP anymore that there's
no reason to not have a current backup.

Windoze XP is getting a bit "long in the tooth". Perhaps your computer
is, too, and Vista either won't run on your old system or just the
thought of the upgrade drives shivers down your spine.

There's no better time than the present to make the switch to a system
that is rock-solid and faster than a speeding bullet.

<http://www.apple.com/getamac/>

Figure out the web site URL in my address above and see the integration
between iPhoto and Apple's .Mac (pronounced "dot mac") service. I
select the digital photo album I wish to post on my website, push a
button, and it happens just like you see it there.

<http://www.apple.com/dotmac/>

I'm having a ball using Mac OS X 10.5 "Leopard" on my four-year-old G4.
I am DYING to get a new Mac but this one still does what I like most,
albeit more slowly every day.

The new Intel Core2 Duo Macs flat-out SMOKE. One can only imagine the
speed with the Mac Pro running Intel Xeon 8-core: Two 2.8GHz, 3.0GHz, or
3.2GHz Quad-Core Intel Xeon 5400 series processors.

Enough evangelizing for Apple. I probably ought to buy some of their
stock. <sigh>

Yes, I always have a backup.
--
<big grin>
JR

Posted by Frank on April 20, 2008, 8:22 pm

> When my home was built in 1991, I built a grounding array within 4-feet
> of the service entrance meter and panel. It consists of three,
> 5/8-inch, copper-clad, 8-foot ground rods. They are placed in a "goal
> post" configuration with the two verticals about 7-feet apart and one
> crossing the top of them, perhaps 6-inches below the tops of the rods.
> There is probably a 18-inches of earth cover. All components are bonded
> together with two, #6 solid copper wires and two make the final run to
> the meter box.
>

Sounds pretty good to me for residential application. Do you use couple of
ground wells and keep it wet? How about connection to a rebar a la Ufer
ground?



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