Author Topic: Your secret hidden bunker  (Read 18378 times)

Rastus

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Re: Your secret hidden bunker
« Reply #80 on: July 31, 2009, 05:54:40 PM »
......... At least one of them insisted on not turning off and disconnecting his generator.  The homeowner insisted it was installed correctly.  The homeowner found out very dramatically it wasn't installed right when the utility restored power.

Some people have their generators plugged into their wall backfeeding their home.  Without a proper line switch, people sometimes think they are isolated from the power somehow (or forget to isolate by throwing their main) and the result can be a dead power company employee.
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Badgersmilk

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Re: Your secret hidden bunker
« Reply #81 on: July 31, 2009, 08:23:10 PM »
Speaking of generators:  

http://www.uscarb.com/

If anyone has a geny they want to convert over to propane or natural gas I bought a propane kit from here for my little 3,500 watt generator and it works great!  Took about an hour to install, and was super easy to do.  I chose the smaller generator because its easy to transport, and runs MUCH quieter than our 7,500 watt.  You can stand over most little 3,500 watt generators and hold a normal conversation.  Noise level may not seem like a big deal until you have to live off one for a couple days.  And the smaller geny will run for a LOT longer on less fuel. 

twyacht

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Re: Your secret hidden bunker
« Reply #82 on: July 31, 2009, 08:38:51 PM »
I'm not an electrician either, but I think you want a tranfer switch between the utility power and any backup power source.
If not set up and isolated properly you can backfeed the grid through the transformer, stepping up the power, making it dangerouse to utility workers.  Lineman really frown on that.  Also if not done correctly and utility power is restored all your equipment may be fried as well as risk to your home circuits, fire, and electrocution.   I have heard tales of linemen and power companies having uncooperative cutomers running a generator during a power outage.  At least one of them insisted on not turning off and disconnecting his generator.  The homeowner insisted it was installed correctly.  The homeowner found out very dramatically it wasn't installed right when the utility restored power.

As an electrician, you need to have a "break before make" isolating breaker, your on the power company power OR gen power, AND NEVER THE TWO SHALL MEET!!!

Also are inverters, very popular in countries with substandard electrical grids. In essence golf cart batteries wired in series to create a large battery bank, run into an inverter which creates 240/120 VAC. to run your house, there is seamless transfer safety devices, growing in popularity here in FL. where the power cuts out and the inverter takes over so yo don;t even see a blink.

Regardless, who needs a 3 phase Generator??? What are you going to run with that?? Your Dryer & Stove, even hot tubs are 240 dual phase... L1 L2 N G thats it...

Three phase is L1 L2 L3 NO neutral and ground. 208 3ph is no joke, and you need to have a freq meter to maintain 60Hz here in the US or you will blow your appliance whatever up...

You must have a bad ass big screen for 3ph, I worked on the Princess of Mariana over 200 ft of floating power. 4 155kw generators, all 480 3ph...

This will light your neighborhood, apt bldg. and/or small community. Unless your running some serious heavy equip. 3ph is not practical..

Thomas Jefferson: The strongest reason for the people to keep and bear arms is, as a last resort, to protect themselves against the tyranny of government. That is why our masters in Washington are so anxious to disarm us. They are not afraid of criminals. They are afraid of a populace which cannot be subdued by tyrants."
Col. Jeff Cooper.

PegLeg45

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Re: Your secret hidden bunker
« Reply #83 on: July 31, 2009, 09:01:15 PM »
As an electrician, you need to have a "break before make" isolating breaker, your on the power company power OR gen power, AND NEVER THE TWO SHALL MEET!!!

Also are inverters, very popular in countries with substandard electrical grids. In essence golf cart batteries wired in series to create a large battery bank, run into an inverter which creates 240/120 VAC. to run your house, there is seamless transfer safety devices, growing in popularity here in FL. where the power cuts out and the inverter takes over so yo don;t even see a blink.

Regardless, who needs a 3 phase Generator??? What are you going to run with that?? Your Dryer & Stove, even hot tubs are 240 dual phase... L1 L2 N G thats it...

Three phase is L1 L2 L3 NO neutral and ground. 208 3ph is no joke, and you need to have a freq meter to maintain 60Hz here in the US or you will blow your appliance whatever up...

You must have a bad ass big screen for 3ph, I worked on the Princess of Mariana over 200 ft of floating power. 4 155kw generators, all 480 3ph...

This will light your neighborhood, apt bldg. and/or small community. Unless your running some serious heavy equip. 3ph is not practical..



Yep...yep....and yep.
I spent many years working with all the above......mostly 480v 3ph and down.


And don't forget the rarely seen (except in fluorescent light circuits) 277v......it'll eat your ass up too if you slip up......
Don't ask how I know.
I just know.


 ;D
"I expect perdition, I always have. I keep this building at my back, and several guns handy, in case perdition arrives in a form that's susceptible to bullets. I expect it will come in the disease form, though. I'm susceptible to diseases, and you can't shoot a damned disease." ~ Judge Roy Bean, Streets of Laredo

For the Patriots of this country, the Constitution is second only to the Bible for most. For those who love this country, but do not share my personal beliefs, it is their Bible. To them nothing comes before the Constitution of these United States of America. For this we are all labeled potential terrorists. ~ Dean Garrison

"When it comes to the enemy, just because they ain't pullin' a trigger, doesn't mean they ain't totin' ammo for those that are."~PegLeg

Timothy

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Re: Your secret hidden bunker
« Reply #84 on: July 31, 2009, 09:11:21 PM »
Yep...yep....and yep.
I spent many years working with all the above......mostly 480v 3ph and down.

And don't forget the rarely seen (except in fluorescent light circuits) 277v......it'll eat your ass up too if you slip up......
Don't ask how I know.
I just know.
 ;D

We've lived parallel lives Chuck....I worked with high HP motors for years, wired hundreds to save the company money.  Our contract electrician trusted me and just verified my work.  Not really any reason for 3 phase power in a residential neighborhood unless there happens to be a business nearby or you need the extra ooomphhh for large motors on the farm.

I must admit, I haven't heard the term dual-phase in some time, it's basically obsolete and sometimes called that when it's 3 wire single phase system as with your dryers and stoves. 

High voltage work is not for the average backyard electrician.  I have no problem with most electrical work around the house and I've completely redone three of four houses.  It's best left to the pro's if your not comfortable.

Sponsor

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Re: Your secret hidden bunker
« Reply #85 on: Today at 09:02:22 PM »

blackwolfe

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Re: Your secret hidden bunker
« Reply #85 on: July 31, 2009, 09:18:00 PM »
Yep...yep....and yep.
I spent many years working with all the above......mostly 480v 3ph and down.


And don't forget the rarely seen (except in fluorescent light circuits) 277v......it'll eat your ass up too if you slip up......
Don't ask how I know.
I just know.


 ;D

Guy I went to high school with became an electrician.  He worked for a company that did a lot of work at the plant I worked at.  I occasionally saw him, but mostly worked with a older electrician from that company.  They were working together one day at another location when my former classmate got nailed by one of those 277 volt fluorescent circuits and was electroucuted by it.  The older electrcian did CPR and rescue breathing and brought him back.  There was some discussion that the ballast was faulty and acted as a stepup transformer, but I don't know enough about that to know if that was possible or if someone was just trying to cover their butt.
"We the people are the rightful masters of both Congress and the courts, not to overthrow the Constitution, but to overthrow the men who pervert the Constitution. "    Abraham Lincoln
 


Wolfe

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Re: Your secret hidden bunker
« Reply #86 on: July 31, 2009, 09:21:24 PM »
Biggest thing we worked with on a regular basis was 250 horse power 480v motors that ran the hydraulic system pumps. Very aggravating to wire because of the size of the motor leads.
Mostly we worked with 120v ac control voltage. Hated working with phase inverters and DC/AC inverters and variable speed drives.


Along the thread lines, solar or wind power and a good bank of batteries and a good industrial inverter and you could power a good many appliances. It wouldn't be cheap, though.
"I expect perdition, I always have. I keep this building at my back, and several guns handy, in case perdition arrives in a form that's susceptible to bullets. I expect it will come in the disease form, though. I'm susceptible to diseases, and you can't shoot a damned disease." ~ Judge Roy Bean, Streets of Laredo

For the Patriots of this country, the Constitution is second only to the Bible for most. For those who love this country, but do not share my personal beliefs, it is their Bible. To them nothing comes before the Constitution of these United States of America. For this we are all labeled potential terrorists. ~ Dean Garrison

"When it comes to the enemy, just because they ain't pullin' a trigger, doesn't mean they ain't totin' ammo for those that are."~PegLeg

PegLeg45

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Re: Your secret hidden bunker
« Reply #87 on: July 31, 2009, 09:24:39 PM »
Guy I went to high school with became an electrician.  He worked for a company that did a lot of work at the plant I worked at.  I occasionally saw him, but mostly worked with a older electrician from that company.  They were working together one day at another location when my former classmate got nailed by one of those 277 volt fluorescent circuits and was electroucuted by it.  The older electrcian did CPR and rescue breathing and brought him back.  There was some discussion that the ballast was faulty and acted as a stepup transformer, but I don't know enough about that to know if that was possible or if someone was just trying to cover their butt.

Possible....if you contact the right spots. I can kill you with a 9v battery....if set up properly.

It's not voltage that does the most damage (other than bad burns)....It's the amperage that stops the heart quickest.

It only takes .6 amps to stop the human heart.
"I expect perdition, I always have. I keep this building at my back, and several guns handy, in case perdition arrives in a form that's susceptible to bullets. I expect it will come in the disease form, though. I'm susceptible to diseases, and you can't shoot a damned disease." ~ Judge Roy Bean, Streets of Laredo

For the Patriots of this country, the Constitution is second only to the Bible for most. For those who love this country, but do not share my personal beliefs, it is their Bible. To them nothing comes before the Constitution of these United States of America. For this we are all labeled potential terrorists. ~ Dean Garrison

"When it comes to the enemy, just because they ain't pullin' a trigger, doesn't mean they ain't totin' ammo for those that are."~PegLeg

Timothy

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Re: Your secret hidden bunker
« Reply #88 on: July 31, 2009, 09:33:26 PM »
In the Navy, I worked for a time in the ET shop.  The HV cabinets with all the sonar gear had little shelves on the inside of the door to rest your elbow on when you were testing the circuits.  This prevented the current from passing through your body.  It would exit at your elbow...missing the heart.

Trivia.....why do sailors where a fabric web belt and only that type of belt with a removable buckle?

blackwolfe

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Re: Your secret hidden bunker
« Reply #89 on: July 31, 2009, 10:02:53 PM »
So the metal belt buckle doesn't make contact and fry you.  I had some sailor telling me something about this once, but he was usually so full of BS that I mostly didn't pay attention to what he was saying.
"We the people are the rightful masters of both Congress and the courts, not to overthrow the Constitution, but to overthrow the men who pervert the Constitution. "    Abraham Lincoln
 


Wolfe

 

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