Advertisements
Advertisements
Question
Draw a diagram of a three pin plug top. Mark the pins used for live, neutral and earth connections as L, N and E respectively. To which part of the appliance is the pin marked as E connected. To which line L or N is the fuse connected?
Advertisements
Solution
The labelled diagram of a three-pin plug top is shown below.
The pin marked as E is connected to the outer metallic case of the appliance. The fuse is connected to the live line L.
RELATED QUESTIONS
Identify the following wires used in a household circuit: The wire is connected to the top terminal of a three pin socket.
What purpose is served by the terminals of a three way pin plug? Draw a diagram and name the pins.
Draw a labelled diagram of a three pin socket.
The following diagram shows a three pin socket marked as 1, 2 and 3.
- Identify and write live (L) neutral (N) and earth (E) against the correct number.
- To which part of the appliance is the terminal 1 connected?
- To which wire joined to 2 or 3, is the fuse connected?
In following Figure shows two bulbs with switches and fuse connected to mains through a three pin socket by means of a three wires cable.
- Label each component - bulb, switch, fuse and socket.
- Name and state the colour of insulation of each wire 1, 2 and 3.
- How are the two bulbs joined: in series or in parallel?
Name the markings of a three-pin plug. Give the colour codes of the connecting leads.
State the purpose served by the terminals of a three pin plug.
Give the role of each of the three terminals of a three way pin plug.
Draw diagram of a three pin socket outlet and state the connections made to them.
Draw a labelled diagram with necessary switch, regulator etc. to connect a bulb, a plug socket outlet and a fan with the mains. In what arrangement have you connected these to the mains?
