FRDB Archives

Freethought & Rationalism Archive

The archives are read only.


Go Back   FRDB Archives > Archives > IIDB ARCHIVE: 200X-2003, PD 2007 > IIDB Philosophical Forums (PRIOR TO JUN-2003)
Welcome, Peter Kirby.
You last visited: Today at 05:55 AM

 
 
Thread Tools Search this Thread
Old 10-28-2002, 10:44 AM   #1
Talk Freethought Staff
 
Join Date: Jun 2002
Location: Toronto, eh
Posts: 42,293
Post Phones and Lightning

My wife keeps telling me that I shouldn't talk on the phone during a storm, because if a lightning bolt hits the phone line, I'll get electrocuted.

It seems to me that the phone lines wouldbe insulated against that sort of thing (I live in the middle of a big city) so that sort of thing wouldn't happen. I've also never heard of that happening.

Could you actually get electrocuted like that? It seems farfetched to me, but she's pretty convinced of it.
Tom Sawyer is offline  
Old 10-28-2002, 11:26 AM   #2
Veteran Member
 
Join Date: Jan 2002
Posts: 4,369
Cool

A telephone is an electronic device connected to several thousand miles of copper conductive wire, with approximately a sixteenth of an inch of polymer insulation on the outside.

A lightning bolt is a discharge of electrostatic charge. Its electrical capacity can be measured in millions of electron volts, thousands of amps, millions of coulombs, and I don't even want to think about how many watts.

Do the math?
Corwin is offline  
Old 10-28-2002, 11:54 AM   #3
Junior Member
 
Join Date: Oct 2002
Location: Riverview, FL
Posts: 13
Post

As a general rule, electrical current (lightning) can travel along conductive wires (such as a phone line). While I am still befuddled how this happens in undergroundlines (wasn't the lightning seeking groudn to begin with), I've seen it and so cannot deny the reality.

In the middle of a major city (IOW, where the lines are run under building and pavement instead of under or over open ground) you may be reasonably immune.
Jerry Love is offline  
Old 10-28-2002, 01:48 PM   #4
Senior Member
 
Join Date: Mar 2001
Location: b
Posts: 673
Post

Quote:
Originally posted by Jerry Love:
<strong>As a general rule, electrical current (lightning) can travel along conductive wires (such as a phone line). While I am still befuddled how this happens in undergroundlines (wasn't the lightning seeking groudn to begin with), I've seen it and so cannot deny the reality.

In the middle of a major city (IOW, where the lines are run under building and pavement instead of under or over open ground) you may be reasonably immune.</strong>
Lightning rarely strikes the ground. Very often it originates from the ground and "travels" upward, though it appears to do the reverse. The current can travel through the ground for short distances, particularly if the ground is wet. It isn't hard for it to find wires underground.

One is protected from electrocution by phone not by insulated wires but by circuit breakers at the switching stations and all along the lines. They need to protect the entire system from getting fried. They protect the users in the process.

Glory

[ October 28, 2002: Message edited by: Glory ]</p>
Glory is offline  
Old 10-28-2002, 01:55 PM   #5
Veteran Member
 
Join Date: Jan 2002
Posts: 4,369
Cool

Quote:
Originally posted by Glory:
<strong>

Lightning rarely strikes the ground. Very often it originates from the ground and "travels" upward, though it appears to do the reverse. The current can travel through the ground for short distances, particularly if the ground is wet. It isn't hard for it to find wires underground.

One is protected from electrocution by phone not by insulated wires but by circuit breakers at the switching stations and all along the lines. They need to protect the entire system from getting fried. They protect the users in the process.

Glory

[ October 28, 2002: Message edited by: Glory ]</strong>
However I still wouldn't bet my life on them if I didn't have to. They generally work, but no system is foolproof.
Corwin is offline  
Old 10-28-2002, 02:04 PM   #6
Veteran Member
 
Join Date: Jun 2002
Location: A Shadowy Planet
Posts: 7,585
Post

It's only foolproof once you've electrocuted all of the fools.
Shadowy Man is offline  
Old 10-28-2002, 02:07 PM   #7
Senior Member
 
Join Date: Mar 2001
Location: b
Posts: 673
Post

There are few things that are utterly outside the realm possibility. Still, one really should look at the likelyhood of not just getting struck by lightning but getting sruck by lightning through the phone. I would not hesitate to use the phone during a lightning storm to, for instance, call for needed help.(911)

Glory
Glory is offline  
Old 10-28-2002, 02:21 PM   #8
Veteran Member
 
Join Date: Mar 2002
Location: South Dakota
Posts: 2,214
Post

Get a cordless phone.
Abacus is offline  
Old 10-28-2002, 02:44 PM   #9
Veteran Member
 
Join Date: Jan 2002
Posts: 4,369
Post

Quote:
Originally posted by Glory:
<strong>There are few things that are utterly outside the realm possibility. Still, one really should look at the likelyhood of not just getting struck by lightning but getting sruck by lightning through the phone. I would not hesitate to use the phone during a lightning storm to, for instance, call for needed help.(911)

Glory</strong>
Like I said.... unless I really had to. The odds of it actually HAPPENING may be fairly small... but there's a question of minimizing risks.

Calling 911 would be an acceptable risk in my opinion. Calling my parents wouldn't be.
Corwin is offline  
Old 10-28-2002, 03:43 PM   #10
Veteran Member
 
Join Date: Jul 2001
Location: Adelaide, South Australia
Posts: 1,358
Post

Quote:
Originally posted by Abacus:
<strong>Get a cordless phone.</strong>
Woo-hoo! So not only can I call 000 [911] during a storm, I can stay on the sex talk line too!

Now all I need is a hands-free...

PS I agree with the above - the risk is very small, but why take it? It is standard advice from the phone company here to stay off the phone during electrical storms.
Arrowman is offline  
 

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Forum Jump


All times are GMT -8. The time now is 03:16 PM.

Top

This custom BB emulates vBulletin® Version 3.8.2
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.