DEW attack in Canneto di Caronia?

[Waterglass]

Most states have a public utilities commission that regulates the power quality. They should have specifications published for acceptable power fluctuations. National Electric Code specifies 3% drop. Service voltage should be +5.8% to -8.3% for system operating 600V and below per ANSI and my experience is that most PUCs are somewhere in that ballpark. That would give a usable range at the feed to the panel of 100V to 127V, assuming you're on a standard single-phase 240V system. Some places out in the country or commercial use a 3-phase Wye and the voltages are lower, nominal is something like 115V and 208V. In most states, one can make a complaint to this board if the voltages are out of spec and the power company is legally required to address it. If the transformer is any good, all they typically have to do is adjust the taps on the transformer. It could get hairy there... in some states the power company owns the transformers and in others, the users of the transformer "own" it and would be responsible for paying to replace it if its bad(probably $20K).

Voltage is likely to go up at night. Most of the electronic equipment I've dealt with, particularly if made in the last 25 years, has a switch mode power supply and will run okay on anything from about 85VAC to 135VAC. If its built for international sale, it probably even works up to about 250 VAC or so. Older stuff with linear power supplies (quite possibly your stereo amplifiers) and transformers will run hot if the voltage is too high and eventually burn up or have reduced lifespan.

I read that 124V is considered "acceptable" within the +/- range. The Power Company owns the Transformer as they paid to have the tree removed along with the removal and reinstallation of the Transformer. I will send them an email anyway as the voltage used to be around 121V and has since gone up. 

Older stuff with linear power supplies (quite possibly your stereo amplifiers) and transformers will run hot if the voltage is too high and eventually burn up or have reduced lifespan.

I recall when the owner of Wire Monkey was here he said they install voltage conditioners to stop the above. They even do it on all security cameras as wired on 120V lines. He does installs for retired FEDS including FBI agents.  That's when he mentioned a client who had $20,000 of Stereo equipment fried. So your comment seems to parallel his as he held back in telling me what he really knew was going on. Now its all adding up.

Sounds to me that 1st I need to get a another voltage conditioner for the upstairs 65" flat screen HDTV and other electronic components as I do have a new NILES SI-1230 and several other $$ components all connected. Then email the Power Company as you never know what they already know but aren't saying anything until someone stumbles onto something. That's why they went nuts on the tree when I complained about 100's of millisecond outages per year. One supervisor told me that that the actual transformers circuit breaker within the transformer box tripping! Seems to me the tree was stressing the underground line? Back to voltage I mean how many people here have what I have to do a visual quick look at real time voltage?  Pic attached.

Monster: 

https://denyignorance.com/uploader/image...104531.jpg