"In physical science a first essential step in the direction of learning any subject is to find principles of numerical reckoning and practicable methods for measuring some quality connected with it. I often say that when you can measure what you are speaking about, and express it in numbers, you know something about it; but when you cannot measure it, when you cannot express it in numbers, your knowledge is of a meagre and unsatisfactory kind; it may be the beginning of knowledge, but you have scarcely in your thoughts advanced to the stage of science, whatever the matter may be. Often seen quoted in a condensed form: If you cannot measure it, then it is not science." —
Basics to know in Electrical Installation Practice
Key Words in Electrical Installations
The mode of generating Electricity for various requirements of the mankind today are numerous . Electrical Power Generation methods can be from Thermal, Hydropower, Nuclear ,Solar ,Wind Power or some other form.
The generated power is distributed through an Electrical Distribution system. The Power Utility Companies or Government Power Utility Institutes take the responsibility of bringing the Electrical Power to the Consumer. A Consumer can be a large manufacturing industry or just a Home of a person. The Consumer’s requirements vary greatly according to his electrical power requirements or the useage of Electricity. Electrical Installations are needed for the Consumer to use Electricity for his requirements as Lighting, Heating and Air Conditioning , running all types of Electrical Equipment , to name a few. It is for the above , that we intend to address here and to gather practical methods and ways for implementation to improve the knowhow on the subject. First we need to be familier with words such as Current, Voltage and Resistance and their relationship to each other. Then about Electrical Power and the relationship to above. Also about Direct Current,Single Phase ,Three Phase and the Neutral. Real Power, Apparent Power and Reactive Power About Earthing and the relationship to the Neutral The Incoming Supply from the Utility and the Consumer Unit. About Electric Cables , Main Switches and MCCB units. Distribution Boards and MCB modules. RCCB or RCD devices. Socket outlets and Switches for power distribution and Illumination or Lighting. Electrical Wiring Diagrams and Electrical Load Calculation to commence an Electrical Installation Single Phase and Three Phase Supply for Alternative or AC Current usage. Power Factor and Improving of Power Factor for large Electrical InstallationsKey Words to know in Electrical Installations
Current
Current
Voltage
Voltage
Resistance
Resistance
Direct Current
Direct Current
Key Words to know in Electrical Installations
Alternating Current
Alternating Current
Single Phase
Single Phase
Three Phase
Three Phase
Neutral
Neutral
Key Words to know in Electrical Installations
Real Power
Real Power
Apparent Power
Apparent power
Reactive Power
Reactive Power
Earthing
Earthing
Key Words to know in Electrical Installations
Electrical Specifications
Electrical Specifications
Residential Installations
Residential Installations
Industrial Installations
Industrial Installations
Material Needs
Material Needs
Useful Links
Digital Meters
Digital Meters
Sockets and Switches