1 members (Scott35),
235
guests, and
27
robots. |
Key:
Admin,
Global Mod,
Mod
|
|
|
Joined: Jul 2002
Posts: 8,443 Likes: 3
OP
Member
|
|
|
|
|
Joined: Jul 2002
Posts: 8,443 Likes: 3
OP
Member
|
2nd part of post:ABS 638 other side: Burnt through 15 cm conctere driveway. ( NZ 20 cent piece):
[b]Other close up from burned concrete: Damaged drive way from Tasti Products: Ray, My apologies for the delay posting this thread, I haven't had a working computer for a wee while. [This message has been edited by Trumpy (edited 02-10-2006).]
|
|
|
|
Joined: Apr 2004
Posts: 349
Member
|
Wowzers this stuff is amazing. I live in a neighborhood with 12KV OH lines, old ones too. You know, the kind that fall occasionally in wind storms. Luckily none of the 12KV runs thru my yard, but one fell in my across-the-street neighbor's back yard a few years ago. Almost landed in his pool. It relayed off and on and off again before locking out, lots of arc marks on and around the house.
Radar
There are 10 types of people. Those who know binary, and those who don't.
|
|
|
|
Joined: Jan 2005
Posts: 155
Member
|
I remember years ago when I had the privilege to see a downed line burn through a concrete sidewalk. That certainly got my attention.
|
|
|
|
Joined: Aug 2001
Posts: 7,520
Member
|
I wouldn't have wanted to be standing anywhere around there when those lines came down!
|
|
|
|
Joined: May 2005
Posts: 178
Member
|
It must have been an impressive light show, with all that arc welding going on. Too bad there were no surveillance cameras in the neighborhood.
|
|
|
|
Joined: Jan 2006
Posts: 558
Member
|
Wow! It really makes you take a step back and think about the amount of energy that can be delivered over a couple of measley conductors.. In my city the O/H ranges anywhere from 4KV all the way up to 27.6 KV.. We once had a 4KV circuit knocked down just behind my house but it didn't trip the substation breaker and did not arc or spark at all but was still hot!.. Someone actually tried to move this hot wire off their driveway with a dry pice of wood just so they could get their car out... It didn't work as they recieved a good shock but it did not harm them thank God! Some people just do not understand!
A.D
|
|
|
|
Joined: Feb 2004
Posts: 1,438
Member
|
I once worked on a house where a 12KV primary broke loose and landed on the home's service drop.. Crazy things happened there! The 86 year old homeowner told me she was just sitting in her rocking chair and it sounded like someone fired a cannon in her backyard! GFI's with the faces blown off, the panel had a hole blown through the back (FPE), but strangely, some appliances survived.. others just made blue smoke when we tried plugging them into a generator.
Another time I happen to be around when 2- 33KV lines lost to gravity north of downtown Los Angeles in a storm... The arc-blast was enormous enough that the streets dept had to spot repair where the lines had fallen on the street (asphalt), where they had hit the sidewalk (concrete) it looked like it turned it to glass!
|
|
|
Posts: 57
Joined: August 2003
|
|
|
|