Electrical Wiring

Dams produce electrical energy by utilizing the energy in the water stored in an elevated lake. Outlets in the dam allow water to escape down a pipe, trading potential energy for kinetic energy, ie, as it falls it moves faster. At the bottom of the dam, the fast moving stream of water enters a turbine where the it hits the blades of the turbine and makes it spin rapidly. The spinning turbine is connected to a generator, a rotating machine with magnets that converts the energy of rotation into electrical energy, usually AC. The AC voltage is run into a transformer to convert it to high voltage (higher voltage is better for long distances) and sent on towers to where it is needed.

It depends if you mean the telegraph or wiring. The telegraph was invented by Samuel Finley Breese Morse around 1832.

If you mean just wire, nobody really knows who invented it. Wire is probably over 4000 years old.

When electricity in the form of lightning strikes wood, the temperature is so high that combustion is almost instantaneous.

In Homes electricity is carried by wires and to an appliance using a Plug.

1. If there is extremely small gap between the Plug rod and receptacle in the socket the sparks are formed. If there is any object that can catch fire then a fire can be caused.

2. Most of the wires that carry current are coated with Plastic that is normally Fire retardant. When current passes the wire gets heated and as ambient temperatures changes a poor quality plastic an get hardened and then crack. This causes sparks to be created between the wire and the wall. IF wall is not Fire retardant then fire can ensue. Some times the plastic itself starts burning and then comes in contact with wooden or fire hazard material and then fire can break out.

Electricity is used to illuminate light bulbs in lights and light fixtures in your home. They are also used for street lights. Electricity is also used to heat electric stoves; so, those without electricity could obviously cook with gas stoves. Electricity allows you to use your computer, which is probably the most used reference and tool for writing papers, documents, and other necessities for school or jobs. Electricity is used for TV's, which a lot of people use for entertainment and news.

An SPST switch can break the connection or hold the connection depending on which switch your using.

It really depends on whether it is negative or positive but the simple answer is STATIC

Providing the power supply is switched off at the mains there is really no problem except for the following :-

# New installations need to conform to part p of the building regulations as does any installation in the kitchen, bathroom or other wet rooms and may need the earth / cross bonding upgrading. # If the wiring in the old light (not the house wiring) is in the old red and black colouring this may suggest that the house wiring itself may have been around for a long time and may need checking.(The house wiring being red and black would not in itself be an indicator and may still be fairly new).

# The original fitting may not have been installed correctly. For example if it is wired into the ring main instead of the lighting circuit then in needs to be connected via an appropriately fused spur. # The term standard hard wired light fixture doesn't give indication of the units loading and may be taking the existing circuit past it's safe capacity. # Any cutting or removal of fire barriers eg plasterboard needs to be protected by intumescent strips or foam. # I am not an electrician and have no vested interest but would suggest that the need to ask the question indicates that you need qualified help in case you've not considered the above or there is some other possibility that I haven't thought of bearing in mind I've never seen the site. # Mains voltage can be and often is lethal.

Maybe, but probably not. 120v and 240v plug ends are designed differently on purpose to prevent this. If the appliance or item in question is designed to operate on 240 volts, you will have to provide it with a 240 volt receptacle. If you look at the item's nameplate (where model number, wattage, etc is found) it may list more than one voltage i.e. 120/240. This means you would be able to operate the unit on either voltage, provided you are using the proper plug.

Me, personally i use a horizontal bar above the area you are installing the cables into it is a lot easier than straight off of the floor...if the cable seems to tighten on the pole then just simply sprinkle some talk on it:)

500mcm 37 strand copper wire = 1.544lbs/ft.

Michael Faraday

Charles Augustin de coulomb

Benjamin Franklin

240 Volts. <><><> In USA, Canada and other countries using a similar 60 Hz houshold electricity supply system, they are dual-voltage. Some of their components, such as the timers, use 120 V while the heating element uses 240V.

There are a number of thing you can do to increase cell phone reception, including adding an external antenna, which helps quite a bit, to amplifiers that boost your signal or a combination of both. Some cell phone companies work better than others in certain geographic areas where they have different licenses to operate at different frequencies such as 800 megahertz and 1900 megahertz. If your company uses PCS or 1900, you may have poor coverage in rural areas since these towers have a more limited range than 800 mhz towers. (about 10 miles compared to 30).

Here is an article that goes deeper into the subject. http://handydandytips.googlepages.com/howcanigetbettercellphonereception%3F

You find out where the phone line enters your house and then you run a wire from there to where your phone will be located. It requires two wires which to an old-timer are called Tip and Ring. Usually red and green on a 4-wire connection. Run to a standard phone jack and plug-in your phone.

A battery is a simple mechanism that consists of two metals in acid. The zinc and copper of the nail and copper hooks become the battery's electrodes, while the juice of the lemon serves wonderfully as the acidic conductor needed to help these two metals work together, thus creating power. The negatively charged electrons flow through the nail to the calculator, providing the power to make the calculator work. They then flow through the copper wire back to the positively charged hook to create an electronic circuit. The acidic lemon juice serves as the conductor that allows the electrons to flow in this way.

basically developing his ideas and working on them.

One that is controlled by a Photo-Electric device that detects darkness

OR

One that is controlled by a Clock Timer.

There is no wire insulation on this earth that can stand a temperature of 658 degrees C (1268 degrees F.).

Pittsburgh, pa

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A current transformer step downs the current in a power circuit to a lower amperage.

A voltage transformer steps down the voltage in a power circuit, typically to 110 volts AC for residential and business use.