2-Pole Means That the Device Plug is not Earthed and it Normally Has 2-Pins That Transmit Electricity. Originally, all Electrical Devices were Fitted with 2-pole Plugs, Which Means that the Devices were not earthed and that all main Sockets were Constructed for 2-pole plugs system. 2-pin Plugs Consist of 2 flat or Round Pins with one Called “hot” “live” or "line" and the Other Called “neutral”. When Connected to an Electric Circuit, the Current Flows From the live Pins Through The Copper Conductor and into the Device system.

An SPST (Single Pole Single Throw) Switch is a Switch That only Has a Single Input and can Connect Only to one Output. This means it Only Has one Input Terminal and Only 1 Output Terminal. A Switch is a Mechanical or Controlling Device That Changes the Flow of Current Direction or Interrupts the Flow of Current Within a Circuit diagram. An electrical line using Single Pole Single Throws (SPST) is Perfect for on-off switching. When the SPST is closed, the Circuit is Closed and the light from the lamp switches on the system. When The Single Pole Single Throw (SPST) is then opened, the light from the lamp goes out and the Circuit is off.

A Power Socket is a Device to Which Electrical Devices Can Be Connected to Receive the Electric Current Required For Their Operation. Connected by a System of Cables to a Power Source, Usually, an Electricity Generation Facility operated by an energy Production company, generally has no moving parts. Instead, it contains metal strips that make contact with the prongs of an Electric plug inserted into the socket. It is Through these Contacts That the Electric current is Transmitted. Electrical Devices that connect to a Power Source Through a Power Socket are Considered to be Portable Because they can easily be Connected and Disconnected From the Power Source.