Operation and Maintenance Spaces General Storage: For items such as stationery, equipment, and instructional materials. PC System related information.
Additional Resources During the last century and a half, electricity has evolved from a scientific curiosity, to a luxury for wealthy people and to a daily necessity in the developed and developing world.
Just as water is necessary for survival, electricity is indispensable in daily life. Without electricity, our way of life comes to a grinding halt.
Modern society requires smart, simple, safe, reliable, and economical electric power infrastructure for social, political, and economic activities. The infrastructure should be efficient, flexible to expand, economical to maintain and operate. A Brief History Electricity was never invented: Thales of Miletus a Greek in AD wrote of static electricity that attracted pieces of straw and hair to rubbed rods of amber.
Induring a dangerous electrical storm, Benjamin Franklin flew a kite that had a metal key at the bottom of the string.
When a bolt of lightning hit the kite, a spark of electricity flew from the key. From this experiment, Franklin invented the lightning rod, which attracts lightning and draws it into the ground. This saves many buildings from burning down.
In Alessandro Volta invented the first source of continuous electric current in his experiments with non-static electricity. He created a battery out of stacks of zinc and copper, with weak acids in between each layer.
In James Watta Scottish Engineer transformed the limited use steam engine into a mega power source and radically transformed the world from an agricultural society into an industrial one.
In his honor, a unit of electric power was named "Watts". The first practical application of electricity was the telegraph, invented by Samuel F. The need for electrical engineers was not felt until some 40 years later, upon the invention of the telephone by Alexander Graham Bell and of the incandescent lamp by Thomas A.
These devices, and Edison's first central generating plant in New York Citycreated a large demand for men trained to work with electricity. Electrical Engineering covers power, electronicscontrol systemssignal processing and telecommunications field.
In engineering practice, the distinction between electrical engineering and electronics is based on the comparative strength of the electric currents used. In this sense, electrical engineering is the branch dealing with "heavy current"—that is, electric light and power systems and apparatuses—whereas electronics engineering deals with such "light current" applications as wire and radio communication, the stored-program electronic computer, radar, and automatic control systems.
The distinction between the fields has become less sharp with technical progress. For example, in the high-voltage transmission of electric powerlarge arrays of electronic devices are used to convert transmission-line current at power levels in the tens of megawatts.
Moreover, in the regulation and control of interconnected power systems, electronic computers are used to compute requirements much more rapidly and accurately than is possible by manual methods.
The rapid proliferation of new discoveries, products, and markets in the electrical and electronics industries has made it difficult for workers in the field to maintain the range of skills required to manage their activities. Consulting engineers, specializing in new fields, are employed to study and recommend courses of action.
In the United States, the regulation of licensed professional engineers is handled at the state level. Thus, requirements for licensure can and do vary by state.
There are four main components of obtaining professional engineering licensure: Although there are electrical engineers who focus exclusively on one of these sub-disciplines, many deal with a combination of them.Basic electrical tools are widely available at most home centers and hardware stores as well as electrical wholesale stores.
For most household electrical projects, you don't need many specialty tools, and several installation tools, like a hammer, tape measure, level, and screwdrivers, you may already own.
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Products in the same group each follow the same networking rules, and you can count on them to work together properly. Now that we understand the codes and standards needed to create this building, it’s time to put stuff in it. Our task at hand is to start wiring the building for a new .
In this sense, electrical engineering is the branch dealing with "heavy current"—that is, electric light and power systems and apparatuses—whereas electronics engineering deals with such "light current" applications as wire and radio communication, the stored-program electronic computer, radar, and automatic control systems.
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