When we have earthing mesh or underground earthing network in industrial plant

When we have earthing mesh or underground earthing network
in industrial plants, weather we have NT-S or NT-C-S kind
of earthing system, so eventually weather we must use 4 or
5 wire in 400 volt level (For example 3×150+70 mm2 or 5×150
mm2) in this connection I would like to know exactly the
paragraph of IEC or IEEE number

Question Posted / eftekharzadeh190

0 Answers
2162 Views
TATA, I also Faced
E-Mail Answers

No Answer is Posted For this Question
Be the First to Post Answer

Post New Answer

More Electrical Engineering Interview Questions

why capacitance effect is predominant in underground cable transmission and inductance effect is predominant in over head line transmission?

0 Answers

Active power= VI COS FI But incase of leading power factor ( more than unity), may we use other formula ? because the cos fi (value of cos thita) should not be grater than one.

2 Answers

how ship earthed?

5 Answers Marico,

what is the formula to find out how many amps generater takes running on full load.

4 Answers

what is the effect when the shunt field winding is opened in dc shunt motor (i) at the time of starting ? (ii) in running condition ?

4 Answers

Can I Drain A Oil For Sample When The Transformer is Running? (Charged)

2 Answers

How to calculate energy stored in an inductance?

0 Answers

what is interpose vt where it is used and y it is used?

0 Answers

what types of load we get from the national grid? is this capacitive or inductive?

1 Answers

What are the basic elements used for modeling mechanical translational system?

0 Answers

what are the main hormonics in ac?

1 Answers

Is it posssible to obtain the higher speed(3000rpm) for adiferentiallly cascaded induction motors(with 8 and 6 poles)

3 Answers

For more Electrical Engineering Interview Questions Click Here