Answer / ashish

If Earthing Resistance Value is more than minimum specified
value & one pit can not serving the you have to provide
Three to Four Earthing Pit Which are Interconnected
Together Making The Earthing Mat So The Total Effective
Value Will be Less.

Answer / joby

here the soil resistivity is high. so mat earthing is provided

Answer / brian

Import good black soil from some where else,mix it with alot
of salt and charcoal dust, dig atleast 2 pits in a space of
10metres apart.
Let each pit have its own earth mat and burry it wit the
mixture mentioned above ie salt, black soil and charcoal
dust and then bond or interconnect the earth mats wit an
earthwire of ATLEAST 35mm2.
Finally pour alot of water in the pits.

Answer / blake australia

There are some powders which harden (i.e. erico make some I
think). Generally would drill a fairly deep hole. insert
earthing rod and surround with these earthing enhancers.
Try to avoid gell or powder forms of earth enhancer as they
tend to wash away when it rains

Why earthing is required for diesel tank?

4 Answers   Greaves,

---

what is bus pt and what is the function of it

2 Answers  

---

I'm looking for a softcopy manual set for a Credence ASL- 3000. Anyone know where I can get it?

0 Answers  

---

Transformer rating=> 15/20 MVA.Why there are two raings? What should be the rating of the fuse at the secondary if the voltage level is 13.8KV/4.16KV?

1 Answers   Bhel,

---

Which UPS (inverter) is better and why ? 12 V inverter and 24 V (two 12 V batteries in series) inverter which is better ......... which has the longer backup which has the greater charging time which has the greater discharging time thank you

2 Answers  

---

why we use star and delta connection?why we donot give the supply directly?

12 Answers   Hitech, Siemens, Tata Steel Limited,

---

In the diesel generator if there is an AVR (auto voltage regulator) gone faulty, in this condition is there any way to generate the voltage from the alternator? I need a brief explanation can you please help somebody

1 Answers   Vodafone,

---

How to calculate the current capacity of the 3C / 1C Al/Cu power cable???

2 Answers  

---

how to revers the direction of single phase motor

0 Answers  

---

Can we use BS 6651 and BS EN 62305 standards for computer room lightning ptotection in substation?

0 Answers   Jindal,

---

what is the difference between capacitive voltage transformer & inductive voltage transformer.

3 Answers  

---

how to syncronize two dg sets

3 Answers  

---