Kids Safety Corner
Welcome to Alcoa Electric’s web page just for kids!
This site will help you learn how to play it safe when it comes to electricity, and let you explore the history of electricity. And, you’ll see how Alcoa Electric brings electricity to your home and school each day. Have fun!
Power Safety Tips
The harnessing of electric power has been one of the greatest human achievements. Today we can heat and cool our homes, power medical equipment that saves lives, and learn and communicate on the Internet, all through the use of electricity.
But electricity, when handled improperly, can be very dangerous—even deadly. Both lightning and electricity from power plants demand great respect from kids and adults in order to prevent accidents.
AED wants to help you learn how to stay safe when it comes to electric power. Here are some important tips for preventing injuries from electricity.
A History of Electricity in the U.S.
For thousands of years, people all over the world have been fascinated by lightning. Some wondered how people could put that kind of power to practical use. But it wasn’t until the 18th Century that the path to the everyday use of electrical power began to take shape.
Maybe you have heard about the famous kite experiment by American Founding Father and inventor Benjamin Franklin. In 1752, to prove that lightning was electrical, he flew a kite during a thunderstorm.
He tied a metal key onto the string and, as he suspected it would, electricity from the storm clouds flowed down the string, which was wet, and he received an electrical shock. Franklin was extremely lucky not to have been seriously hurt during this experiment, but he was excited to have proved his idea.
Throughout the next hundred years, many inventors and scientists tried to find a way to use electrical power to make light. In 1879, the American inventor Thomas Edison was finally able to produce a reliable, long-lasting electric light bulb in his laboratory.
President Franklin Delano Roosevelt signed the act creating the Tennessee Valley Authority (TVA) on May 18, 1933.
TVA is a federally-owned corporation in the United States that was created in 1933 to provide navigation, flood control, electricity generation, fertilizer manufacturing, and economic development in the Tennessee River Valley, a region that was particularly hard hit by the Great Depression.
Today the TVA is the nation's largest public power company, providing electric power to nearly 8.5 million customers in the Tennessee Valley. It acts primarily as an electric power wholesaler, selling to 158 retail power distributors and 61 directly served industrial or government customers. Power comes from dams providing hydroelectric power, fossil-fuel plants, and nuclear power plants. AED is a TVA customer.
For more on the history of Alcoa Electric, click here.
Electricity Terms to Know
VOLT - A unit of electromotive force. It is the amount of force required to drive a steady current of one ampere through a resistance of one ohm. Electrical systems of most homes and office have 120 volts.
VOLTAGE OF A CIRCUIT (Electric utility) - The electric pressure of a circuit, measured in volts. Usually a nominal rating, based on the maximum normal effective difference of potential between any two conductors of the circuit.
ELECTRIC UTILITY - Any person or state agency with a monopoly franchise (including any municipality), which sells electric energy to end-use customers; this term includes the Tennessee valley Authority, but does not include other Federal power marketing agency (from EPAct).
ELECTRICITY - A property of the basic particles of matter. A form of energy having magnetic, radiant and chemical effects. Electric current is created by a flow of charged particles (electrons).
ENERGY - The capacity for doing work. Forms of energy include: thermal, mechanical, electrical and chemical. Energy may be transformed from one form into another.
TRANSFORMER - A device, which through electromagnetic induction but without the use of moving parts, transforms alternating or intermittent electric energy in one circuit into energy of similar type in another circuit, commonly with altered values of voltage and current.
SOLAR ENERGY - Heat and light radiated from the sun.
SUBSTATION - A facility that steps up or steps down the voltage in utility power lines. Voltage is stepped up where power is sent through long-distance transmission lines. it is stepped down where the power is to enter local distribution lines.
FOSSIL FUEL - Oil, coal, natural gas or their by-products. Fuel that was formed in the earth in prehistoric times from remains of living-cell organisms.
NUCLEAR ENERGY - Power obtained by splitting heavy atoms (fission) or joining light atoms (fusion). A nuclear energy plant uses a controlled atomic chain reaction to produce heat. The heat is used to make steam run conventional turbine generators.
HYDROELECTRIC POWER - Electricity produced by falling water that turns a turbine generator. Also referred to as HYDRO.
CIRCUIT - One complete run of a set of electric conductors from a power source to various electrical devices (appliances, lights, etc.) and back to the same power source.
COMBUSTION Burning - Rapid oxidation, with the release of energy in the form of heat and light.
METER - A device for measuring levels and volumes of a customer¹s gas and electricity use.
TRANSMISSION - Transporting bulk power over long distances.
KILOVOLT (kv) - One-thousand volts (1,000). Distribution lines in residential areas usually are 12 kv (12,000 volts).
KILOWATT (kW) - One thousand (1,000) watts. A unit of measure of the amount of electricity needed to operate given equipment. On a hot summer afternoon a typical home, with central air conditioning and other equipment in use, might have a demand of four kW each hour.
KILOWATT-HOUR (kWh) -- The most commonly-used unit of measure telling the amount of electricity consumed over time. It means one kilowatt
THERMOSTAT - An automatic control device designed to be responsive to temperature and typically used to maintain set temperatures by cycling the HVAC system.
EDISON, THOMAS ALVA - The "father" of the American energy industry, Thomas Edison was an American inventor who was born in 1847 and died in 1931. He patented a total of 1,093 inventions - more than any other person in American history. Among the most important were the incandescent electric light bulb (1879), the phonograph (1877) and the movie projector (1893).
CONDUCTION - The transfer of heat energy through a material (solid, liquid or gas) by the motion of adjacent atoms and molecules without gross displacement of the particles.
CONDUCTIVITY (k) - The quantity of heat that will flow through one square foot of homogeneous material, one inch thick, in one hour, when there is a temperature difference of one degree Fahrenheit between its surfaces.