Electrical

Amps,Watts,Ohms,Volts explained

Ground –

Electrical grounding, otherwise known as earthing, primarily provides a measure of safety against electric shocks by acting as a safety line to redirect electric current in the event of short circuits. For household appliances, this is accomplished by a three-pronged electrical outlet with a dedicated grounding prong.

https://energyeducation.ca/encyclopedia/Grounding#:~:text=Electrical%20grounding%2C%20otherwise%20known%20as,with%20a%20dedicated%20grounding%20prong.

Amperage –

measurement of the amount of flow in an electrical current; shorten to “amp”; named in honor of Andre’-Marie Ampere (1775-1836) for his early work in the field of electrodynamics.

Wire Gauges and Uses

 http://electrical.about.com/od/wiringcircuitry/a/electwiresizes.htm

Voltage –

in electrical generation; a measure of the force of electrical current; named after the scientist who perfected the dry cell battery in 1800, Alessandro Volta.

The standard voltage for electrical wiring systems is 240 volts. However, it is not simply a single wire feeding all that voltage in a single stream at 240 volts. Wiring systems are split so that there are two wires, each delivering 120 volts. These are used in a cyclic variation, giving what is known as an alternating current, or in tandem, to supply 240 volts to high-energy appliances such as tumble dryers.Read more: http://www.ehow.com/info_12145473_standard-house-wiring-voltage.html#ixzz2kOLNQyMg

http://hyperphysics.phy-astr.gsu.edu/hbase/electric/hsehld.html

http://scentofapooka.blogspot.ca/2008/01/240-volt-circuits.html

residential_wiring_guide

3 way switch