You may need to step up the voltage to minimize the power loss / voltage dip at the end of the 800 feet depending on:
1. the type of cable used (the higher resistance, the large cables would be required to not do this)
2. the amperage that you will need to draw.
The voltage drop in the wires is due to the I^2*R losses in the cable. If your cable has a resistance of 1 ohm over 800 feet, and you draw 5 amps (so your load resistance is R = V/R = 240 / 5 = 48 ohms), the actual current delivered will be (I = V / R = 240 / 49) 4.9 amps, and the voltage at the end of the 800 feet will be (240 - 4.9*1) 235 volts. voltage is probably fine for whatever equipment you're using. If used continuously, the 800 ft of cable would waste 210kWh of energy/yr (15-35 dollars/year).
If you need 20 amps, the load resistance would be (240 / 20) 12 ohms, current delivered to the load would be (240/13) = 18.5, and the voltage at the end of the 800 feet would be (240 - 18.5*1) 222 volts. This might be too low, depending on the equipment you're using and if you're area has a naturally low voltage to begin with. If used continuously, the 800 ft of cable would waste ~3,000kWh of energy/yr (180-450 dollars/year).
As your question is written, a straight yes or no cannot be given. I hope the above explains enough to give you the knowledge you need to determine this on your own.
Usually you would want to stay at least 10 feet away from power lines. Any conductive material you are working with also has to be at least 10 feet away (metal extension ladder).
around 800 feet high
There needs to be an appreciable voltage drop (I'm not sure what sort of voltage will electrocute a small bird) between the bird's feet if it is to receive an electric shock. As the resistance of the cable between the bird's feet is insignificant, the voltage drop, too, will be insignificant and the bird will not be harmed.
not enough information use a voltage drop calculator >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Use these two calculaters....... http://www.csgnetwork.com/voltagedropcalc.html or http://www.elec-toolbox.com/calculators/voltdrop.htm Good luck. Brian...
? This cannot be easily quantified. transformers normally fail due to excessive through fault current. This does not mean that all transformers that fail explode - most do not, for good reason. An exploding transformer is a danger to anyone in the area. Some oil filled transformers are huge (several hundred tons). Protective devices usually operate fast enough to keep catastrophic failures like you're looking for from happening. If the protection fails to clear faults fast enough, can happen. So the percentage of failures really does not have to do with the transformer (oil filled, gas, whatever kind of transformer) as much as with the protection implemented for that transformer. I've seen two large transformer failures; neither resulted in an explosion. I've also seen an oil filled breaker fail (as a result of incorrect protection), and it did explode. It totalled a vehicle several hundred feet away. So... I'll say "1 in a million" or .0001% would probably be a good, totally unqaulifiable answer.
no .it will not supply
A transformer
The transformer enclosure should isolate the transformer sufficiently from the environment. I believe OSHA specifies 2 feet, 1 inch as the minimum appoach distance to 13.8kV, so I suppose a transformer could be put this close to a building and still be safe. My guess is there are codes in place in your local area that prevent this and specify some greater distance.
You can't use a transformer. HO models all run on DC current, AC will destroy them. You can buy HO power supplies, and for 30 ft of track almost any one would do.
Three feet clearance is needed in front of electrical service equipment.
You need to provide the voltage it operates at and the power it draws in watts.
Usually you would want to stay at least 10 feet away from power lines. Any conductive material you are working with also has to be at least 10 feet away (metal extension ladder).
The cord for the electric stove can extend out for a couple of feet.
There are critical issues to consider when deciding to purchase an electric or gas powered chainsaw. Gas saws have the major advantage of not needing to be plugged in. In remote locations this is a major and possibly deciding factor. Even if electrical power is available nearby, the power requirements limit the length of the electoral extension cord to about 100 feet with a max of 150 feet. The advantages to an electric saw are less pollution, noise and the convenience of not needing to purchase, store and refill with gas. In addition there are cordless electric model that provide mobility and ease of use.
electric ones!
The General Electric Model FUF14DTRWH model freezer is rated by its manufacturer as having 13.7 cubic feet of space.
It would be best to call a qualified electrician to install the wiring.