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Country Discussion Topics
To add your comments to this topic, click on one of the 'Reply' links below.

Why 110?
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deadcarp    Posted 10-06-2003 at 19:32:56       [Reply]  [No Email]
i don't particularly advocate our whole country changing over to 220 volt wiring - but instead of hurting our kids, why not say 12 volt so we can just plug the car in if it won't crank? or 6 volt if 12 scares ya --:)


screaminghollow    Posted 10-07-2003 at 08:49:17       [Reply]  [No Email]
Got one part time neighbor who comes from Baltimore to spend weekends at his place. His entire cabin is wired for 12 volt DC. All 12 volt electric lights, he even has 12 volt appliances, blender, electic skillet, tv, small refrigerator, etc. Even the fan to his heating system. He keeps a couple solar panels on the roof, and three deep cycle batteries in a closet. If he starts running out of juice he plugs in to his cigarette lighter and runs the truck engine to recharge the batteries. He is only here two or three days a week. He says it is far cheaper than paying to run the electric line and the minimum monthly charge to the power company.

I understand also, that there are a few 12 volt AC systems for specialized applications. I have even seen a 120 volt DC generator for sale. I almost bought it, but couldn't figure how much n AC converter might be.


rhouston    Posted 10-07-2003 at 09:52:35       [Reply]  [No Email]
the new bright white LEDs are going to be a boom to the low voltage market. I have toyed with the idea of lighting the boys cabin with it. Coupled with a solar panel and battery they could run them all night and not run out of battery. When I was a kid I used a 12 volt battery with a extra pole added between the 3rd and 4th cell. This gave me 2 six volt batteries so when one was drained we could swith to the other. Had to carry the battery to the house for recharges.

there are many more options now than 25 years ago.


Lazy Al    Posted 10-07-2003 at 12:51:05       [Reply]  [No Email]
I was thinking fiber optics one light bulb and light your whole house
Al


Willy-N    Posted 10-06-2003 at 19:42:44       [Reply]  [No Email]
Wire Size would have to be 10 times as big, nothing like draging around jumper cables to run the Blow Dryer. Problems with voltage drop also. You can still get burnt bad with 12 volts and killed under the right conditions. Your service would be so large to do the same thing a regular one it would take up a large wall. Just won't work for a lot of reasons. OK for campers running some little lights and such but big time problems on high draw and long runs. Mark H.


rhouston    Posted 10-07-2003 at 08:11:28       [Reply]  [No Email]
You're the first person I've heard (other than myself) admit that 12 volts is enough to harm you given the right conditions. I had a long argument about it on tool talk a few years ago. My stepfather warned me not to get careless with electricilty just because it's low voltage.


Willy-N    Posted 10-07-2003 at 10:25:19       [Reply]  [No Email]
Body resistance stops most of it. But get the wires in your flesh and see how it feels! Mark H.


deadcarp    Posted 10-06-2003 at 22:19:49       [Reply]  [No Email]
you're into this sruff mark - one housemover today mentioned that the powerline carries 20,000 volts dc. was he serious?


Lazy Al    Posted 10-07-2003 at 04:37:19       [Reply]  [No Email]
Power lines carry many diferent voltages . 2400 ,4160 7200 12800 and on up they are all AC.
Being AC they can transform it to voltages you can use in your house and not get a large line loss in the power lines
Al


Willy-N    Posted 10-07-2003 at 06:55:11       [Reply]  [No Email]
I think the lines leaving the Grand Coolie Dam are into the 1,000,000s of volts, yes there are some high voltage lines out there! Mark H.


Mike W.    Posted 10-07-2003 at 12:23:59       [Reply]  [No Email]
It is the amperage that kills not the voltage.


Willy-N    Posted 10-07-2003 at 15:12:18       [Reply]  [No Email]
Not sure which? I have been hit so many times in my life I have lost count but I bet it is in the 1,000s of times being a electrician for over 30 years. I have found getting it thru the heart or in the head hurts the most! I have grabed 220 volt lines one in each hand once and it went the shortest path in one arm thru the chest and out the other arm, that one stood me up and slamed me against a wall and my arms took a long time to quit hurting. I got hit in the head with a live wire 120 volts it stuck me in the skin and I thought someone hit me with a hammer right in the head it knocked me off a ladder. I have taken 20,000 volts out of a Neon Transformer right thru the heart building a Jacobs Ladder as a kid and I was luckey the plug came out of the wall because I could not let go. Most of the time it is thru one arm down the leg or just thru the fingers to the side of the hand working live in a metal box. I try to work one handed and not grounded when on live stuff to keep it from going thru the chest area those are the ones that like to stop the heart and kill you. High voltage can burn you and do damage inside and out. Had a freind who hit a High Voltage transformer and blew holes in the bottom of his shoes but lived thru it. It all depends on how you get conected and how weak your ticker is. I have squeaked quite a few times as my chest compressed getting shocked. I decided my 9 Lives were up and was one of the reasons I quit being a Electrician. Heck I blew a 400 Amp breaker with a screw driver once in a live panel that one took my vision and hearing for around a hour and burned holes in my cloths and burnt a lot of hair off my head. I spent many years working live stuff that could not be turned off and realy did not like it! Mark H.


magpie    Posted 10-08-2003 at 05:56:56       [Reply]  [No Email]
I have always had this question about power lines. Every once in a while you can see that the electrical lines on one tower attatch to a different place on the next tower, so, if their are 3 wires they appear to spiral between the 2 towers. I don't know how often this occurs, seems to me every 8 or 10 towers. I know very little about electricity, but seems their must be a reason for it, just curious?


Willy-N    Posted 10-08-2003 at 12:04:15       [Reply]  [No Email]
The thing that comes to mind to me is that it allows stress to go between the pole like a twisted rope would do. Also might help in high wind conditons crossing the lines. Mark H.


magpie    Posted 10-08-2003 at 17:17:32       [Reply]  [No Email]
You know I never thought of that. I was thinking it had something to do with electricity.----thanks


Willy-N    Posted 10-08-2003 at 18:19:55       [Reply]  [No Email]
Watch me be wrong but if you were pulling the wires like jerking them it would only pull the same sidwe of the pole so it could get worse. But if it went to the other side it would counter react the jerking motion on the poles. Why don't you post the question at the top of the forum there are a few lineman on the site. Might get a different answer? Mark H.


Darn NEC    Posted 10-07-2003 at 12:44:12       [Reply]  [Send Email]
One of the problems I've always had with the National Electric Code. They do not define amperage, nor do they recognize amperage as the killing element. I would bring it up at refresher courses and "qualified instructors" would claim it was voltage that would kill.

Then I would inquire about my electric fence, spark plug wires and stun guns. All high voltage, low limited amperage. The instructors did not like that. They also did not like to talk about frequency and it's relationship with the effects of electricity.

Just a few of the "electrical mysteries" that get me tweaked.

Alex


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