Answer / joy

this makes low resistance path for current flow.so that
when a heavy current accur due to lightining or etc etc..
the current chooses the low resistance path to flow..so
that the home appliances will not get affected.. even human
too...:)

Answer / mahesh ch

for equipment and operator safety from shocks......

Answer / arunkumar

Current always choose low resistance path. when we r connect
all electrical equipment with earth it will provide zero
resistance path.So if any fault current occur it will bypass
through the low resist path.

Answer / tamilarasu

We are used all electrical equipments with earthing.incase
the equipment go to fault condition that time current flow
to the low resistance part. we concider the equipment body
is low resistance part so current flow to the equipment
body that time we tuch the body.the human is the concider
of neutral body is phase then phase& neutral to be short
then fuse go to burn out then human is safty from the shock

Answer / manikumar

for bypassing the lightning and surges.
for facilitating safety to personal and equipment from
electric shock
for discharging the induced voltages while doing
maintenance work on line

why are using bus ducts ? why not using cables

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