UNIT #1

EXTENSION CORD WIRING

An extension cord is a flexible electrical cable used to extend the reach of electricity from a wall outlet to an appliance, tool, and device that is located some distance away. It allows electrical equipment to be used in places where the wall socket is not close enough.


At the end of this unit, the learners will be able to:
  1. identify what is a plug.
  2. identify what is a receptacle outlet.
  3. select the different types of plugs.
  4. select the different types of receptacle outlets.
  5. identify plug installation for electrical machinery.
  6. identify flexible cord installation for electrical machinery.
  7. install the plug circuit.
  8. install the outlet circuit.

Extension Cord Wiring

An extension cord is a flexible electrical cable used to extend the distance between a power outlet and an electrical appliance. It allows electrical devices to be used farther away from the socket outlet.

Main Parts of an Extension Cord

  • Plug top – inserted into the wall socket
  • Flexible cable 3*2.5mm – carries the electrical current
  • Socket outlet/cord connector – where the appliance is plugged in
  • Insulation – protects users from electric shock

Common Colour Code

  • Brown = Live
  • Grey = Neutral
  • Green/Yellow = Earth

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