Free 173 Best Homemade Tools eBook:  
Become a founding member: 500+ tool plans, full site access, and more.

User Tag List

Results 1 to 1 of 1

Thread: Safety Quiz: Do Solar Panels Create Electricity From Lightning Flashes? (4K)

  1. #1
    Supporting Member
    Join Date
    Feb 2019
    Posts
    137
    Thanks
    84
    Thanked 226 Times in 76 Posts

    tsbrownie's Tools

    Safety Quiz: Do Solar Panels Create Electricity From Lightning Flashes? (4K)

    Is it safe to work on solar electrical systems at night or when it's (very) cloudy? You may be surprised by this video. This was taken of an LED light that is connected directly to a solar panel during a relatively distant lightning storm.




    What you are seeing is a 12v LED spotlight (20watts) tied to a 40watt 12v solar panel on the roof via a LM7812 voltage regulator.


    Lightning distance:
    Sound (thunder) speed: 5 seconds / mile, 3 seconds / kilometer
    For lightning distance in miles, divide seconds between lightning and thunder by 5, for kilometers divide by 3.


    Consider this: a 300 volt DC string of solar panels at 1/6th output voltage (remember voltage rises much faster than current) would be 50 volts - painful at best, and considered dangerous. At 1/3rd voltage it would be 100 volts!


    A little free ASMR too!

    173 Best Homemade Tools eBook

  2. The Following User Says Thank You to tsbrownie For This Useful Post:

    Toolmaker51 (09-28-2020)

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •