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

Instrument connected to a single phase supply

0 Answers   Alstom,

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What is the better way of passing 400 amp from sending end to receiving end ? By overhead line or underground cable and why ? if underground cable then how much depth require ?

1 Answers   Aditya Birla, HCL,

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what types of electrical & mechanical test conducted in switchyard?

0 Answers  

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Sir, I have applied for the of Jr.engineer(Electrical & Electronics) & ASST. LOCO PILOT at ALL RRB BOARDS. please send me all RRB Boards solved papers in the year of 2001 tO till date. i requested send me the papers to my id as soon as possible (jet_0991@yahoo.com). (This is very urgent) Thank You,

0 Answers  

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working of bucholz relay of a transformer

7 Answers  

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Can anybody inform me about the pattern of ECIL GET( Graduate Engineers Trainee) interview for Electrical students? Will there be HR round as well? I thought of preparing for 2 to 3 subjects thoroughly. Will it be sufficient? Please share your thoughts.

0 Answers   Ecil,

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Explain mechanical rotational system?

0 Answers  

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What effect does a very low impedance have on the Voltage regulation? On the short-circuit current?

0 Answers  

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Why we find the sensitivity for the CT's to check?

0 Answers  

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How to size fuse? How to size MCB?

0 Answers  

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what is the meaning of vcc

0 Answers  

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the site measured knee point voltage of protection class CTs should be greater than rated knee point voltage? what about meetering class CTs. Should it be below the rated knee point voltage?

0 Answers  

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