Lightening

   / Lightening #21  
Patrick,

We've had several experiences.

First was about 15 or 18 years ago. Lightning struck a power pole and blew off one of the primaries. End result was that one of the 110V phases coming into our house became (essentially) ground potential and the other one went to 220V. We slept through the storm, and first thing in the morning (on time) I heard the 220V pool motor kick on out in the back yard. I got up and padded out to the kitchen; turned on the kitchen light, and POP! it blew out. Hmmm, still no clue, then went into the family room (next to the kitchen) and flipped on the light. POP! another one bit the dust. Now I'm awake, and figuring something is fishy, but the pool motor is running (normally). Hmmm. Got out the trusty DVM and started checking outlets. First three I checked were dead. Hmmmm. Fourth one read 220V! /w3tcompact/icons/shocked.gif. I moved as fast as I could to the main panel and shut everything off. Called PG&E ASAP. We were lucky, only lost a clock radio, phone answering machine, and a few lightbulbs. Everything else that was potential was either on the dead circuit or turned off. Other neighbors were not so lucky.

Since we've been living on top of the mountain, we've had lightning strikes 3 times. Lost at least one modem each time (our modems are all protected now). Blew a couple of phone lines. Last one took out the transformer that feeds our house (about 80-100 feet away). Blew it up like a roman candle. My wife was on the phone when it hit (cordless), but her ears were ringing for a couple of weeks. She said she hit the floor when it happened. She was really spooked.

The GlueGuy
 
   / Lightening #22  
Re: Lightning

patrickg
There's one common flaw to all your theories checking status of ground wire.You didn't make a tractor project out of it/w3tcompact/icons/laugh.gif
regards
Mutt
 
   / Lightening
  • Thread Starter
#23  
Paul B., The ADT service guy came out and confirmed that in fact their panel was "now" defective and should be replaced. DU_UH when I called the problem in I told them that their panel was malfunctioned and was messing up my phone line so a couple days later a tech comes out and agrees with me, great service. He didn't have the part required (the one that always goes out in these residential panels when hit by a lightening surge). Now they want to come out next Thursday to fix it because it would be inconvenient to come out sooner. And ADT is supposed to be the top company. I wonder if number 2 (like Avis) tries harder. As my posts are via the phone line in question, it seems fine when the alarm panel is disconnected.

Patrick
 
   / Lightening #24  
Patrickg

My habit is to unplug everything electronic and critical when a thunder storm blows up (Michigan is #2 in lightening deaths). About 4 years ago, I woke up in the middle of the night hearing rumbling. I unplugged everything, went to the bathroom and back to bed. My head hadn't hit the pillow 30 seconds and lightening hit the TV antenna. /w3tcompact/icons/shocked.gif

Blew about a foot off the antenna, took out a ceiling fan, the phone, antenna rotor, thermostats on the water heater and believe it or not, a little bitty fuse in the TV. Stuff like the antenna rotor and ceiling fan rattled when you shook them. The other stuff you couldn't even tell it had been hit. Left a nice black spot where the rotor control had been sitting. Left us deaf for a minute or two also.

I'm just glad I got out of the batroom when I did. /w3tcompact/icons/laugh.gif Don't think I would have wanted to explain THAT one to the EMT's. /w3tcompact/icons/laugh.gif /w3tcompact/icons/laugh.gif

SHF
 
   / Lightening
  • Thread Starter
#25  
GlueGuy, I guess I'll have to order a supply of surge arrestors to mount at all the panels (well house, shop, mom's house inside and out- 2 panels). The good news is they really do help. The bad news is they can be destroyed by exceeding their limit and have to be replaced. Not terribly expensive but could get that way if replaced frequently enough. PG&E (Pacific Graft and Extortion?)

Patrick
 
   / Lightening
  • Thread Starter
#26  
Re: Lightning

Mutt, Didn't I mention that the well house is over 50 ft from the shop and qualifies as a legitimate "TRACTOR" destination, what with the tall grass and all. If I have to pull the well, again, maybe I could use a snatch block to an overhead beam and use the tractor to pull the rope carrying the weight of the pump and pipe ratheer than the 12000lb winch on the front of my Ram3500.

Patrick
 
   / Lightening #27  
A VERY old hickory tree in our meadow. Beautiful and healthy. One weekend mowing the meadow I noticed all the grass in a 2' radius around the trunk (about 20" diameter) was brown/dead. The next spring, no leaves, tree was dead. The bark on the side of the tree was split from top to bottom. You could see clear as day where the power went.

Steve
 
   / Lightening
  • Thread Starter
#28  
SHF, Yeah, that could have been an electrifrightening experience. I think I just had an idea while reading your post that might help me with my new house electrical design. I will need to put ALL the sensitive loads on a separate breaker box beside the "regular box". Up stream of the sensitive box I will need switches to open the line coming from the meter and short the input to the sensitive breaker box to ground. Maybe I could automate that a bit.

Yet another design project.

Patrick
 
   / Lightening
  • Thread Starter
#29  
Steve, I have had two trees hit within a hundred yds of my shop this summer. One had a limb blown off and I suppose I'll know next spring what the damage is for sure. The other is showing some dead leaves but I haven't conducted a forensic exam on it to see how bad things are. I suppose I'll know for sure next spring when I see what buds out. The overwhelming majority of my pecan trees lost at least one big limb each to ice storms last winter. I know that this must be a much worse that normal series of problems with/for trees as if this was normal I wouldn't have nearly so many trees left alive. Between ice storms, lightening, and beaver there is hardly going to be anything left to be destroyed by tornados. Hopefully that will not leave the tornados with nothing to eat but my buildings. Maybe I should buy an old house trailer to put over in the corner of the property to attract the tornados away from the good stuff.

Patrick
 
   / Lightening #30  
All true stuff...and a darn good story. Thanks!/w3tcompact/icons/smile.gif

JimI
 

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