Online assistance for electrical trade people in New Zealand and Australia Login  |  Register  |   Forgot Password
Assistance for electrical trade people
 

 

 

 


Click here to send Ron a pdf document for publication on this Topic

Documents must be less than 200k in pdf format

Posted By Topic: weather vane attracts lightning or not?

andybbrown
Feb 23 2019 07:54

Hi, I want to make a rooster or similar weather vane (maybe alum or iron) and have on roof of house. It will sit on the old TV antenna pole. Is this an issue for lightning at all? Many thanks.
   

Satobsat
Feb 23 2019 11:23

Would you stand on the roof of your house and hold it during a lighting storm?
   

SaintAlan
Feb 23 2019 11:31

Your susceptibility to lightning strikes depends on the surroundings. There are computer modelling programs to assess the risk but in practice it is a bit of a lottery.
Really, the risk of striking the weather vane is no different to when the pole had a TV antenna on it.
   

Satobsat
Feb 23 2019 12:09

Section 2 of AS/NZS 1768:2007 Lightning protection will help you define what the risks are in your situation. Section 5 deals with protection of persons and equipment within buildings. But if it's no bigger than a TV aerial then what would be the difference? It's probably safer as you don't have a co-ax cable attached to it and an appliance in your house.
   

andybbrown
Feb 24 2019 22:11

Thank you for your replies