How to tell if your AC wiring needs an upgrade


Just posted a new blog article on how to analyze your AC wiring using a very inexpensive meter.  Who knows, if you find a problem with your wiring it may just save your home!

 

 

erik_squires

Just plugged in the unit referenced (Receptacle Tester) in this thread. Everywhere I try it it reads 117V (L-N) and 0-.01 (N-E). Screen is green.

Now the really weird thing though is when I plug it into my Niagara 7000 it reads 122V (L-N) and 0 (N-E) but all 3 lights are on and red  which according to the instructions (indicating HOT/GRD REVERSE, OPEN GRD) and the screen turns orangish-red.

ozzy

@ozzy

Is the AC voltage output of the Niagara 7000 Balanced power? 60V - 0V - 60V? If yes that would create problems for the "(Receptacle Tester)". It’s not designed to be connected to a balanced power system. L to N Voltage it will measure...

 

I tuned in Audiogon Forum because I have had good experiences on other forums (not audio related) and because I felt ‘comfortable’ with the general tenor of the contributions. I was also quite impressed that some dealers, and even more, some manufacturers (most notably, Atmasphere), would deign to post on technical issues without making even a veiled sales pitch. In a word, I was impressed by the sincerity of many of the posters, including several of those who have reportedly been banned, especially oldhvymec (if I’ve spelled his handle correctly) and the aforementioned hemhtz (again, I don’t know if I’ve spelled his name correctly. Personally, and in my experience, a Forum needs its ‘steadies’ the people you can count on for an opinion one way or the other; they function as signposts, as it were, weathervanes, to tell you which way the wind is blowing, or the tide is turning. They can get tiresome at times, because the other regulars have heard it all so many times before. But there is still comfort in that, for me. I can understand, and have some sympathy, for any new moderator who might feel constrained (or threatened), but ideally, the Forum’s ‘public square,’ free speech’ nature levels the playing field. Because I haven’t been a witness to the vitriol that some describe, perhaps I am naive to stick up for those I don’t even know, but then again, us Old White Guys need to stick together (although others would say we do entirely too much of that).

Anyway, to answer the original question, I tune in to learn from others more knowledgeable and/or more experienced than myself. As well as to share my experience where I feel others might find it helpful. Have my posts ever been ego driven? More than likely. Have I recommended gear I own? Yes, on the basis of my experience. Hopefully, in the spirit of, here is what I found, your mileage may vary.

I find that most of the contributors speak in the same vein, and when absolutes are laid out, there is usually some solid experience, education, or training to back the claims up.

Like others I decry a peeing contest that some of these discussions devolve into. Perhaps, if we sense it coming, we can choose not to respond. Better to NOT have the last word than spoil the thread for all who come after. But then, many of us (myself included) are learning proper manners all over again in this digital age.

Recieved mine today. Going back tomorrow.  It was very nice to see my N-E reading is 0 on all circuits. But it is showing 102 on L-N for every outlet in my house.  L-N is currently 118 volts.  I have a monitor installed and check it every day.  So do I ask for a replacement or be happy I've played with it and move on. I'll decide tomorrow as I'm clicking the button.  I'm inclined to not trust it.

Jerry