The most common type of AC power plug and socket used in the UK. The plug is fused. It was introduced in 1947 as a new standard for post-war reconstruction, replacing BS546. Most appliances are connected using these plugs (exceptions being appliances requiring more than 13 Amps).
Showing posts with label electricity. Show all posts
Showing posts with label electricity. Show all posts
Sunday, 2 December 2012
Tuesday, 30 October 2012
Home Electrical Insulation Testing
Insulation Testing
A large percentage of testing done on electrical power systems (maybe 80%) is related to insulation testing. Companies like Megger provide equipment to do this.
Background to AC (Mains) Electricity
The current system of AC electricity we have today was devised by Nikola Tesla. His AC electric designs were licensed by entrepreneur and engineer, George Westinghouse.
AC electricity runs normally at 50 Hz (UK, India, China, France, Germany, Italy) or 60 Hz (USA, Canada, Brazil, South Korea). Japan is one country that has both 50Hz and 60Hz due to the conflicting influence of Britain and the United States.
AC vs. DC
This was a cause of great debate in the so-called War of Currents in the late 1880s (Thomas Edison being the foremost proponent of direct current).
Circuit Breakers
Electrical switches designed to protect an electrical circuit from damage by overload (excess current causing excess heat) or short circuit (where electricity goes on an unintended path).
A large percentage of testing done on electrical power systems (maybe 80%) is related to insulation testing. Companies like Megger provide equipment to do this.
Background to AC (Mains) Electricity
The current system of AC electricity we have today was devised by Nikola Tesla. His AC electric designs were licensed by entrepreneur and engineer, George Westinghouse.
AC electricity runs normally at 50 Hz (UK, India, China, France, Germany, Italy) or 60 Hz (USA, Canada, Brazil, South Korea). Japan is one country that has both 50Hz and 60Hz due to the conflicting influence of Britain and the United States.
AC vs. DC
This was a cause of great debate in the so-called War of Currents in the late 1880s (Thomas Edison being the foremost proponent of direct current).
Circuit Breakers
Electrical switches designed to protect an electrical circuit from damage by overload (excess current causing excess heat) or short circuit (where electricity goes on an unintended path).
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