Power-transmission line?
I don't think a lineman that does this would be around for very long, but one explanation might be that if they use the front of their hand the shock could cause the muscles to spasm making the hand close around the energized line, instead of pulling away?
Birds resting on a high-voltage power lines are a common sight.?
"Richard" may be an electrical engineer but he has not answered your question. 4 cm ≡ 0.04 m Therefore resistance of this length of wire = 1.2 x 10(-5) x 0.04 ohms = 4.8 x 10^(-7) ohms Potential Difference, V = I R = 54.7 x 4.8 x 10^(-7) V = 2.6256 x 10^(-5) V
What is the safe distance to live from a high voltage electric tower? I read that electromagnetic waves can reach up to 200 meters.
Do me a favor: Go outside, look up at the sky and if it's daytime and if there aren't any clouds, you'll see a large yellow hot thing. Don't stare at it for too long as it can damage your vision. That's called the Sun and it emits far more low-level electromagnetic radiation in a single day than you'll ever receive in a lifetime living near powerlines. If you are not concerned about the Sun and its myriads effects upon you and your health in general, I wouldn't worry too much, if at all, about living near high voltage lines.
Can we buy or stay in a house near high tension electric wires?
Yes, you can buy a house “near” high tension (high voltage) overhead electric wires. Usually there is an access right-of-way under such lines to facilitate maintenance access.You can certainly stay in the house, yard, etc.You cannot put your stuff (garden shed) on the right of way easement… but a friend of mine is a bee keeper and was allowed to plant wildflowers under the power lines for the bees to get pollen from.
A bird stands on a dc electric transmission line carrying 2510 A.The line has 2.5 resista?
2.5 ohms / meter * 0.04 meters = . 1 ohms V = I R I = 2510 A R = 0.1 Ohms so V = 251 Volts. It should be clear that the given numbers are not realistic for a transmission line.
What can cause low voltage on residential gas line?
To start, yes i know Ohm's law and how electricity(for the most part) works. The gas company wouldn't install a new meter because they read about 2 volts on the gas line. Later i Checked it myself by measuring AC voltage between the gas line and a grounded wire(connected to a pole in the earth). I also got 2 volts. What I can't figure out is where the voltage is coming from. Here is the Data I have gathered so far: 1. I have about 2 volts when measuring neutral to ground on all my circuits in the house. 2. I measure about 115v-118v hot to neutral(which makes sense because of the loss to ground). 3. The water line measure zero volts when checked to Ground. so only the gas line has voltage. 4, The main earth ground outside my circuit breaker is also carrying about 2 volts With this data I concluded that I probably have a few crappy neutral connections(causing the 2 volts to bleed to ground). But, after looking at every inch of my gas line (under the house it is all exposed) I can't see any electrical touching the pipes. Has anyone seen this kind of issue before? How is the 2v getting to the gas line, and how can i stop it?
When a tree's branches are touching a power line, how come you don't get an electric shock just by standing on the same ground as the tree?
First of all, just because the wires are touching the branches doesn't mean they are connecting to the branches since some power line wires, such as those coming to your home, are insulated. Of course if the wires rub against the branches, the insulation can rub away and then the wire can touch the tree branch. Now, in order for current to flow through the tree, there has to be a complete circuit from the power source to the wire to the branch to the ground and back to the power source. Just because the tree is in the ground doesn't mean there is a complete circuit. It depends on how the power source is grounded and how far away it is from the tree. If there is a complete circuit through the tree and through the ground about the tree back to the power source, then current will flow in the ground and there will be a voltage drop across the ground whose magnitude depends upon how much current is flowing and the resistance of the ground. If you happen to be standing on the ground where current is flowing, then there could be a higher voltage on the ground under one foot than under your other foot. If the voltage drop is not too great and you are wearing shoes with insulated soles, still no problem. If you are barefoot, you are more likely to feel the voltage. If the voltage difference is large enough to break down the insulation of your shoe soles, then you would surely get a shock. However that large a voltage drop would probably correspond to a large fault current, that would trip the power company's protective circuits. And it might well have first set the tree on fire or burned away the branch and "cleared the fault." And you might be dead by then. Lots of unknowns here depending on the exact circumstances, but not a sure hazard for you in all cases.