Answer / ecstacy006

so many factors to consider for ug cable laying.firstly the
depth to wch cable should be laid ,it may vary with the
company priciples but not less than 1.2m
then over the cable should be filled with pure sand and over
the sand the protective slabs to be placed.the feeder name
should be indicated on the cable with yello paint.
some places where we cant make enough depth we use HDPE(high
density poly ethylene)pipes.through that pipe we lay the
cable.(depth 50-80cm)
when we lay cable on bridges we cant make depth ,here we can
use GI(galvanized iron)pipes.

Answer / thabiso

nower days cables are suspended by hooks on tha roof to
prevant then from damages and water.note that the hooks are
not permanently installed

expansion of rccb

2 Answers   Videocon,

---

what's the difference between 'shaft power demand' and 'BHP' , when we consider electrical load list.

0 Answers   HEC,

---

what are the standard values for resistances(Megger testing) between L&N, L&E and N&E (L=Live,N=Neutral, E=Earth)?

1 Answers   CESU,

---

how can we avoid magnetostriction in transformer?describe the suitable methods.

3 Answers   Bhel,

---

why we are using KVA rating for transformer,not KWh rating?

5 Answers   NTS,

---

---

In which type of circuit short circuit is dangerous in parallel or series and why?

6 Answers  

---

WHAT IS INERTIA,AND WAT IS TORQUE.

0 Answers  

---

where is used dc volage transformer,and what is highest capacity of transformer

2 Answers  

---

How much load with stand the copper cable by sq mm apro..

1 Answers   L&T, Taj Group,

---

What is the function of isolater

4 Answers   Getco, Gland Pharma,

---

what is difference between induction motor&servo motor.what r types of servo motor?how it works?

1 Answers  

---

how can i get an electrical c-certificate?

0 Answers   Wartsila,

---