What would you like to do?

Why humming sound occur in extra high tension transmission lines?

already exists.

Would you like to merge this question into it?

already exists as an alternate of this question.

Would you like to make it the primary and merge this question into it?

exists and is an alternate of .

The noise is better described as 'buzzing', rather than 'humming', and it is caused by the breakdown of the air's insulating properties, due to stress caused by electric fields set up in the vicinity of where the conductors are supported from insulators. The noise is accompanied by a pale blue discharge which becomes visible after dark.
1 person found this useful
Thanks for the feedback!
Follow

How accurate is "The Americans" depiction of history compared to what was actually happening between Russia and the United States in the 1980s?

View Full Interview

What would you like to do?

Why do power companies use high-voltage transmission lines?

High voltage lines are used for power transmission because the high voltage means that less current flows for a given amount of energy transmitted. The lower current flow mean (MORE)

Signs Your Automatic Transmission Needs Repair

Review three signs that your automatic transmission is in need of diagnosis and repair. Discover some of the most common symptoms and the likely causes of these issues. Find o (MORE)

Why is a Transmission Overhaul so Expensive

If you had your transmission overhauled in the 70s or 80s you could be in for sticker shock should you need this service on a more modern automobile. Find out why a transmissi (MORE)

Transmission Repair in a Bottle

Can you pour something into your transmission that will actually solve internal problems? The answer might surprise you. Learn how these transmission miracle fluids work and i (MORE)

Do I need an Automatic Transmission Service

The automatic transmission service is a common up sell during regular maintenance. The questions are, do you need the service, will it solve any problems, can it make my trans (MORE)

Visiting the High Line

Built in the 1930s, the 1.45-mile elevated freight rail line beginning at Gansevoort Street in the Meatpacking District and continuing to West 34th Street in Chelsea is the Hi (MORE)

What would you like to do?

How do you choose no of insulator in High Voltage transmission Line?

Each insulator is rated according to its ability to insulate. For example, if one insulator is good for x volts, then four insulators will be required for a line conductor ope (MORE)

What would you like to do?

Can high tension wires emit any sound audible to the human ear?

  I drove under high tension wires in a truck and could clearly hear a buzzing noise. I actually stopped the truck and sat under the wire for a moment to listen to the sou (MORE)