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Tractor Talk Discussion Forum

Way off the wall O/T

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old

06-06-2007 21:25:29




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Ok here it is. If I would hook up say 2 surge protectors whould it help or would it hurt my protection?? I.E. hook one into the other so as to double up on the system.




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onefarmer

06-07-2007 19:44:44




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 Re: Way off the wall O/T in reply to old, 06-06-2007 21:25:29  
It really is off the wall unless you have your outlets in the floor. HA



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buickanddeere

06-07-2007 11:31:12




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 Re: Way off the wall O/T in reply to old, 06-06-2007 21:25:29  
If you run grounds the way radio comercial transmitter sites do, you will be ok. Pro Ham Radio Shacks too. They are usually back on the air 5-10 seconds after a direct lightening strike. We are talking hundreds of feet of heavy gauge copper wire in a buried radial pattern. And ground conductors made of flat strips/bars of copper rather than round. And real surge suppressors. As for the rest of us. The sharp DC impulse spike of lightning is different than the sine wave of AC. So even if line to neutral or line to ground stays under 200V or so on 120Vac. Some sensitive electronics will fry. A lighting strike is such a high impulse current. It's own magnetic field generated by it's current will limit the elctricities ability to turn corners or follow ground conductors. So the lighting tends to jump from, more or less straight to easiest ground. Depends if your equipment is along the pathway. If everybody's electrical service had an up to date, code legal grounding system. Lighting strike damage would be less common & less severe. One old 6 ft ground rod driven into dry earth isn't a grounding system. Even two new 10 ft ground rods are poor grounds in sand or dry soil. A deep well casing is about as good a ground one will find. Ground cables should run straight from the panel or services direct to the ground rods with no or as few as possible turns. And turns must be large dia radius of 2+ ft rather than a sharp 90 degree bend.

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rhouston

06-07-2007 10:49:43




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 Re: Way off the wall O/T in reply to old, 06-06-2007 21:25:29  
As other say a surge protectors won't protect you from a direct strike, but then again neither will unplugging it. I was hit 2 years ago buy a VERY close strike. I lost things in the basement that were not even plugged in at the time (both were electric motors) it must have been real interesting down there at the time. I have seen completly fried surge protectors with burn marks and all yet the equipment plugged into them was fine. When you purchase a surge protector look for ones that have an equipment guarantee on them. The 19.95 ones are nothing more than a multiple outlet strip at best. I prefer the APC brand ones (American Power Conversion)they have always done well by me. If you purchase a battery backup again APC is the ONLY brand I will use. I have over 20 years experience in the computer field and this is all hard won experience.

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IH2444

06-07-2007 09:51:36




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 Re: Way off the wall O/T in reply to old, 06-06-2007 21:25:29  
The more surge portectors you have oplugged in the better.
you home wiring is a big parellell circuit, the more surge protectors you add the more protection you have. ie more joules of transient volotages will be shunted to ground.
with that said it is also true that surge progtectors will do little to protect from a direct lightening strike. but they are worth the money/
I have so much surge protection in my office that on a big surge it will trip the breakers to that room.
I also have UPS on all my computers and electronics.

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Bill-KCKs

06-07-2007 09:10:19




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 Re: Way off the wall O/T in reply to old, 06-06-2007 21:25:29  
While it's already been said that nothing will stop a direct lightning strike, you can protect your equipment from spikes induced in the power line by nearby strikes or switching currents. When the fuse blows on a typical pole transformer, the collapsing magnetic field can induce a spike of 5,000-V on the secondary. That's where "surge"/spike protection comes in handy.

Install a whole-house surge supressor at the meter socket or entrance panel. Then use plug-in supressors at each appliance. The plug-in supressors, though, should have protective devices (MOV's) between the "hot" leg to ground, neutral to ground, and hot-to-neutral. There are some really cheap ones on the market that don't use 3 MOV's...

Don't forget to add MOV-based protectors to the telephone devices and TV antenna/cable/satellite leads. I think more TV's are fried from lightning strikes to the cable than power.

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George Andreasen

06-07-2007 08:37:54




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 Re: Way off the wall O/T in reply to old, 06-06-2007 21:25:29  
From a phone man of 38 years experience...no man made device of any sort is going to protect you or your equipment from lightning..period, end of story. The box on your phone line is technically called a "protector", but is designed to (hopefully) discharge high voltage to ground. In addition it contains small carbon or gas protectors to guard against "sneak" currents, but NIETHER is designed to protect your computer, answering machine, fax or whatever else you plugged into the phone jack. It's designed to prevent the house from catching fire and that's it!
Check right in the front of your directory..it states in plain english to NOT use your phone during an electrical storm (although you might be ok with a portable..no direct connection to the line...but you could get a nasty crack in the ear). That statement also includes anything else plugged into the phone system, so boys unplug everything! Not just turn it off, UNPLUG IT. Just remember, that $19.95 "surge protector" from Wally World will only protect against minor voltage spikes on the power line and not discharge from lightning.

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Dave Sherburne NY

06-07-2007 08:20:26




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 Re: Way off the wall O/T in reply to old, 06-06-2007 21:25:29  
If you look out the window during a lightning storm, you will see how far the "spark" will jump
There ain't no surge protector gonna stop that. I unplug both of my surge protectors that have tv, vcr,phone, printer etc. Two plugs everything
disconnected. Also, I unplug them from the phone
lines. No problems my son down the road lost a computer in April My son in Wisc. lost two last
year. UNPLUG THEM.

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supergrumpy

06-07-2007 07:39:13




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 Re: Way off the wall O/T in reply to old, 06-06-2007 21:25:29  
might consider getting an "uninteruptable power supply" or battery backup (UPS), better ones have surge ports for accessories and even your phone line

a slow charger charges the battery, battery runs an inverter that runs your computer, when power goes out you have time to shut your computer down gracefully plus allegedly gives very clean power to your computer

during lightning storms mine clicks away every time the power fluctuates, as far as I know a surge protector will not fill in the low spots

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wfw

06-07-2007 07:19:43




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 Re: Way off the wall O/T in reply to old, 06-06-2007 21:25:29  
I kept having troubles with the surge protector on the phone line, it actually burned out my modem and motherboard on mothersday 2006 and I ended up building a new computer, it turned out the surge protector on the phone line that phone co installed did not have a ground on it at all, it never did. You need to check their protector, usually where the phone line comes into the house, it is supposed to be grounded

frank

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Leroy

06-07-2007 05:04:27




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 Re: Way off the wall O/T in reply to old, 06-06-2007 21:25:29  
Are you talking power line or telephone line? big difference there. I have no protection on the power line but last summer I did get hit by lightning and ruined the well pump, furnace, a light and two telephones. First and only time for that since there was eletricity here since it was installed in 1946. Now on the telephone line I have them hooked up two in a row to the computor but not to the rest of the house. I also unpulg the telephone line for the computor every time I turn it off. And many a time when I wasen't prepaired it blew the first one of the two but never yet hit both of them. If there is a thunderstorm 10 mile away but the sun is shining here I will get hit on the phone line unless I have it unpulged, be nice here and on line and have it blow. Seems as if the surge protectors for the power lines are easy to get but very hard to get for just a phone line and that is all I use.

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old

06-07-2007 07:38:46




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 Re: Way off the wall O/T in reply to Leroy, 06-07-2007 05:04:27  
Well this new surge protector I got is for both phone and power. I plan to hook it up some time today. Ya any time we have weather comeing in I unplug the phone line to the computer, I've lost more then one modem over the years to a zap in the phone line



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Bob

06-06-2007 21:36:47




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 Re: Way off the wall O/T in reply to old, 06-06-2007 21:25:29  
It certainly wouldn't HURT.

If you have a modern electrical sevice, a surge protector MAY already be installed at the main panel, and, of course, any plug-in ones would be in series with the BIG one at the panel.

I think the main thing with the plug-in ones in series would be the quality of the ground connections through them, and back to the wall socket when the MOV in the surge protector "crowbars" a spike to ground.

Link

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Greg_Ky

06-06-2007 21:34:22




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 Re: Way off the wall O/T in reply to old, 06-06-2007 21:25:29  
Can"t help you on that Rich. I have whole house surge protection that is installed in the meter base and so far in 6 1/2 years we have had two lightning strikes that have destroyed the underground primary twice and the power company had to pull in new primary each time and I have not had anything in the house affected from the lightning strikes.



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