Power Line Hum

Most recent answer: 09/04/2010

Q:
I allways hear a voice like "zzzzz" from city power lines. No matter if it is rainy or not, or if they are wet or dry. Why and how they make a sound like that? And that sound is higher if the lines get wet. WHY?
- yasin (age 35)
ankara
A:

Here's what we found in a quick search.





Mike W.

(published on 09/04/2010)