1.
What is Earthing system design
2.
What all the components involved in earthing
system
3.
What is the Procedure to do earthing system
design
4.
How do you measure Earth resistivity
5.
How do you measure earth pit resistance
6.
What is meant by maintenance of earth pit
7.
What all the standard earth strip sizes
available
8.
What is the installation procedure for earth pit
9.
What all the standard earth resistances to be maintained
for various applications like home, substation, generating station, transmission
towers…
10.
Do we use any software for earthen systems
design
11.
What is chemical earthing
12.
What all the codes and standards to be used for
earthing system design
13.
What should be earth wire size to be used in our
homes
14.
How many earth pits, does home required to have
15.
For 30KW solar system, how many earth pits are
required
16.
How much is the cost of one earth pit
17.
Companies names, who undertake earthing system
supply and Installation
18.
If you join in a earthing company, what could be
the role of an Electrical Engineer
19.
Is there any difference between Meggar and Earth
resistance tester
20.
If earth pits resistance not maintaining less
than one ohm, what could be the issue and how to rectify it.
21.
Why earthing pin is in higher size compared to
Ph and neutral pin in socket ?
22.
What should be voltage to receive between ph-n,
ph-e and e-N in a 230 V system
23.
What is step voltage and touch voltage, why they
are considered?
24.
What all the different types of earth pits
available in the market?
25.
What is bentonite powder
26.
What is the body resistance
27.
What is the tolerable current limit by a body
28.
Which one would give shock voltage or current
29.
What is the first aid to be done for shocked
human
30.
What is the difference between body earthing and
neutral earthing
31.
If there is no earthing done for a home, what
problems could arise
32.
What is the difference between TN-TT-IT-TNS-TNC
systems
33.
For clay soil, what is the typical value of soil
resistivity
34.
Why neutral is earthed through resistor and
reactor some times?
35.
Can we use cable instead of strips for earth
wire connection
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