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Lightening strike neaby -- some damage
On Jun 4, 12:02*pm, harry wrote:
On Jun 4, 3:43*pm, "Ed Pawlowski" wrote: We had a near lightening strike that sent a surge though the power lines. Not sure where the hit was, but I did have some damage. My wife called me at work after a thunderstorm and said she saw a big red ball in the driveway and then some of the lights went out. *The doorbell rang and would not stop ringing. *I told her to take a wire off the chimes and they stopped, but a breaker was tripped and would not reset. *The bell button has a diode in it and that may have taken the hit. When I got home, I took the two wires off of the breaker and it still did not reset so I replaced the breaker. *One of the circuits was OK, the other had a short and tripped the breaker. *Since it was not getting dark and it was still raining, the hunt would wait a day. *Next day, I went out to the (detached) garage and found an X-10 module I use to control an outdoor light was blown apart and burnt. *The plastic cover was gone, the insides were soot covered. * I'm wondering if the jolt came in that way or out, it was the furthest away from the electric panel. I'm going to replace the receptacle it was plugged into also. *I've not pulled that out yet, but I'm not taking any chances. *Once replaced. I'll hook the wire back to the breaker. Losses we *HD TV, Surround sound receiver, X-10 module, computer router, doorbell. The good news is: *I now have a 47" TV with far better picture than my 5 year old 32" and a better sound system. More stuff is on surge protectors too. It's quite likely your actual house was struck, especially if it is isolated and has any high points. * You're wife could have been killed so count yourselves lucky. You need to get external lighning protection rods if you house IS high and is away from other high points. *These are quite expensive and need regular checks. You could do these yourself if your technical. The "spike" or transient protection device that will protect agains the strike you experienced has not been made and never will be. * You can get deviced that will protect against strikes on the electric distribution system that are miles awy but that's all. *All these devices do is store the enegy of the transient in a capacitor or coil & then discharge it to ground. *So they will cope with switching transients and similar but that's all. Wrong. They don't "store" anything. Next time there's a big storm, the only protection for your electrical appliances is to turn the electricity isolator off *where it enters the house. Right. After traveling through a mile of air, a 1/4" switch gap is going to stop lightning. What a maroon! |
#2
Posted to alt.home.repair
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Lightening strike neaby -- some damage
On Jun 4, 7:28�pm, keith wrote:
On Jun 4, 12:02�pm, harry wrote: On Jun 4, 3:43�pm, "Ed Pawlowski" wrote: We had a near lightening strike that sent a surge though the power lines. Not sure where the hit was, but I did have some damage. My wife called me at work after a thunderstorm and said she saw a big red ball in the driveway and then some of the lights went out. �The doorbell rang and would not stop ringing. �I told her to take a wire off the chimes and they stopped, but a breaker was tripped and would not reset. �The bell button has a diode in it and that may have taken the hit. When I got home, I took the two wires off of the breaker and it still did not reset so I replaced the breaker. �One of the circuits was OK, the other had a short and tripped the breaker. �Since it was not getting dark and it was still raining, the hunt would wait a day. �Next day, I went out to the (detached) garage and found an X-10 module I use to control an outdoor light was blown apart and burnt. �The plastic cover was gone, the insides were soot covered. � I'm wondering if the jolt came in that way or out, it was the furthest away from the electric panel. I'm going to replace the receptacle it was plugged into also. �I've not pulled that out yet, but I'm not taking any chances. �Once replaced. I'll hook the wire back to the breaker. Losses we �HD TV, Surround sound receiver, X-10 module, computer router, doorbell. The good news is: �I now have a 47" TV with far better picture than my 5 year old 32" and a better sound system. More stuff is on surge protectors too. It's quite likely your actual house was struck, especially if it is isolated and has any high points. � You're wife could have been killed so count yourselves lucky. You need to get external lighning protection rods if you house IS high and is away from other high points. �These are quite expensive and need regular checks. You could do these yourself if your technical. The "spike" or transient protection device that will protect agains the strike you experienced has not been made and never will be. � You can get deviced that will protect against strikes on the electric distribution system that are miles awy but that's all. �All these devices do is store the enegy of the transient in a capacitor or coil & then discharge it to ground. �So they will cope with switching transients and similar but that's all. Wrong. �They don't "store" anything. Next time there's a big storm, the only protection for your electrical appliances is to turn the electricity isolator off �where it enters the house. Right. �After traveling through a mile of air, a 1/4" switch gap is going to stop lightning. �What a maroon!- Hide quoted text - - Show quoted text - Yep that's correct. Most of the energy will have been grounded close to the strike. 99.99% of the energy is dissipated within a couple of feet of the ground point of the strike. It doesn't all come rushing down the wire to your house, moron. |
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