slefain
slefain PowerDork
12/16/20 9:43 a.m.

Ever since we had a big storm here a few months ago in Atlanta, our power has been acting weird. Sometimes it goes out, but mostly it just fluctuates. The last few weeks it has been surging, which makes all the LED lights in the house freak out and messes with the electronics. I put surge protectors (the power strip ones) on the important electronics, but now I'm worried about the stuff that is hard-wired and appliances. Georgia Power came out yesterday, inspected the wires, shrugged their shoulders and left.

From my research there are whole-house surge protectors available. Some are fitted at the meter like this:

 

Others install next to the breaker box like this:

 

And there are even ones that fit into the breaker area:

 

Prices all seem to be under $500 installed, so that isn't too bad. Anyone have experience with these little boxes?

We had the entire house rewired during the 2018 remodel. I wish I had known about these things back then, I'd have just stroked a check to have one installed during construction. Oh well.
 

stuart in mn
stuart in mn MegaDork
12/16/20 10:33 a.m.
slefain said:

Others install next to the breaker box like this:

This is the style I'm familiar with - I've specified them on numerous construction projects without issues.  Note they come in several different levels of protection.  https://www.se.com/us/en/work/products/explore/home-surge-protection/

I've got one. In box, like picture #3. The electricians said they would be mandatory (in TN, this year). So far, so good.

rustyvw
rustyvw GRM+ Memberand Dork
12/16/20 2:53 p.m.

I have put several surge breakers in for customers, haven't heard of any issues with them.  

Karacticus
Karacticus GRM+ Memberand Dork
12/16/20 3:03 p.m.

I've had the meter installed unit on our house for 10+ years.  

I've perhaps heard that it wouldn't offer any protection if we had a (very, extremely) close strike to the house either post the meter on the supply side, or something that could send a pulse into the house from the ground side.

I'm not really an expert, but it seems to me that if the surge on the ground side is more than the ground rod can dissipate, there isn't anything any device is going to protect you from in that situation.

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