nanog mailing list archives
Re: Protecting 1Gb Ethernet From Lightning Strikes
From: Chris Knipe <savage () savage za org>
Date: Wed, 14 Aug 2019 19:33:27 +0200
Think surge protectors will protect against strikes that is far away, and the residual surge it creates. A direct strike? Don't think there's anything that will really protect against that. On Wed, Aug 14, 2019 at 7:29 PM <bzs () theworld com> wrote:
Are "surge protectors" really of much use against lightning? I suspect not, other than minor inductions tho perhaps some are specially designed for lightning. I wouldn't assume, I'd want to see the word "lightning" in the specs. I once had a lightning strike (at Harvard Chemistry), probably just an induction on a wire some idiot had strung between building roofs (I didn't even know it existed) and the board it was attached to's solder was melted and burned, impressive! More impressive was the board mostly worked, it was just doing some weird things which led me to inspect it...oops. My understanding was that the only real protection is an "air gap", which a piece of fiber will provide in essence, and even that better be designed for lightning as it can leap small gaps. Check your insurance, including the deductibles, keep spares on hand. P.S. My grandmother would tell a story about how what sounded like the ever-controversial "ball lightning" came into her home when she was young. Good luck with that! https://en.wikipedia.org/wiki/Ball_lightning -- -Barry Shein Software Tool & Die | bzs () TheWorld com | http://www.TheWorld.com Purveyors to the Trade | Voice: +1 617-STD-WRLD | 800-THE-WRLD The World: Since 1989 | A Public Information Utility | *oo*
-- Regards, Chris Knipe
Current thread:
- Protecting 1Gb Ethernet From Lightning Strikes Javier J (Aug 13)
- Re: Protecting 1Gb Ethernet From Lightning Strikes Warren Kumari (Aug 13)
- Re: Protecting 1Gb Ethernet From Lightning Strikes Blake Hudson (Aug 13)
- Re: Protecting 1Gb Ethernet From Lightning Strikes Brandon Martin (Aug 14)
- Re: Protecting 1Gb Ethernet From Lightning Strikes Eric Kuhnke (Aug 14)
- Re: Protecting 1Gb Ethernet From Lightning Strikes Rob Pickering (Aug 13)
- Re: Protecting 1Gb Ethernet From Lightning Strikes Bill Woodcock (Aug 13)
- Re: Protecting 1Gb Ethernet From Lightning Strikes Nate Burke (Aug 13)
- Re: Protecting 1Gb Ethernet From Lightning Strikes bzs (Aug 14)
- Re: Protecting 1Gb Ethernet From Lightning Strikes Chris Knipe (Aug 14)
- Re: Protecting 1Gb Ethernet From Lightning Strikes Mikael Abrahamsson (Aug 14)
- Re: Protecting 1Gb Ethernet From Lightning Strikes Nick Olsen (Aug 15)
- Re: Protecting 1Gb Ethernet From Lightning Strikes Warren Kumari (Aug 13)
- Re: Protecting 1Gb Ethernet From Lightning Strikes Jared Mauch (Aug 13)
- Re: Protecting 1Gb Ethernet From Lightning Strikes Bjørn Mork (Aug 14)
- Re: Protecting 1Gb Ethernet From Lightning Strikes Måns Nilsson (Aug 14)