26. Utilize electrical appliances wisely
Improve
ventilation and
air flow
Better ventilation
reduces cooling
load of air
conditioners
27. A fuse – a short piece of thin wire
Which overheats when current above a
certain value flows through it
28. The fuse melts when a current that is
too high flows during a short circuit
This prevents overheating of the wire
which would cause a fire
29. If power rating of an appliance is
960 W and 240 V, then normal current = 4 A
Fuse to be used must be of higher
current:- so use 5 A fuse
30. Earth Wire, E
Three Pin Plug (green)
Safety wire –
connects appliance
to earth
Live Wire, L
(brown)
Neutral Wire, Current flows
N (blue) through circuit
Zero Potential
Difference
31. Three Pin Plug If a Live Wire
touches the metal
body of the appliance,
a large current
would immediately
flow to the earth
and breaks the fuse.
This will avoid
someone from being
electrocuted.
32. Pic credits
• Flickr / Plug Face - Day 3/365 / Jake Mates • Flickr / 148:365 - 09/25/2012 - Blown Fuse / Shardayy
• Flickr / Plasma 5/ limowreck666 • Flickr / Con – Fused / canonsnapper
• Flickr / Pedagaggi Wind Turbines / Sebastiano • Flickr / Wiring a Plug / tjmwatson
Pitruzzello
• Flickr / Dying moments / limowreck666
• Flickr / defying murphy’s law / vakas
• Flickr / Vintage Blackboard / pareerica
• Flickr / Ultraman + Mt. Fuji = JAPAN / emrank
• Flickr / kettle / butkaj.com
• Flickr / March of the washer-dryers /
Worldislandinfo.com
• Flickr / 3D Green Energy / StockMonkeys.Com
• Flickr / Electric Fuel Cap - RAC Future Car Challenge /
Dominic Alves
• Flickr / Fluorescent Tube / jeancliclac
• Flickr / 154/366 / hannah8ball
• Flickr / untitled / John Steven Fernandez
• Flickr / kitty TV / kassandrapoised
• Flickr / Universal Iron and Drapery / firexbrat
• Flickr / Only in Egypt / mnadi
• Flickr / This means you!! / passiveaggressivenotes
• Flickr / thefreezerstaresatme / expressionposthumus
• Flickr / cityswing / i_gallagher
• Flickr / made in england / fishyfish_arcade