IN CABLE TRENCH WHY FILL UP THE SAND. AND WHAT IS THE
DIFFERENCE BETWEEN OVER HEAD AND UNDER GROUND LAYING THE
CABLES
Answers were Sorted based on User's Feedback
In overhead cables, we donot require any cooling media as
air is cooling media. whereas in Under ground cables, in
pucca trench, we put sand around the cable before is it is
cemented.The reason for sand is that it absorb water and can
help in transmit the heat from cable.
Is This Answer Correct ? | 5 Yes | 2 No |
Answer / k.prakashchandra
Sand remains in the form of loose grains forever,hence
location and removal of cable become easy.Overhead cables
require supporting structures and wires.
Is This Answer Correct ? | 1 Yes | 6 No |
What is the technical name of Transformer Oil ?
17 Answers Bhel, Don Bosco, Lanco,
differentional compound gernater used for wielding porpose. why????????//
HOW TO CALCULATE THE CABLE SIZE FOR POWER CABLE, CONTROL CABLE AND INSTRUMENT CABLE
Transformer how to maintaince a check b check c check d check
which motor is used in high mast ( street light) & give the hight of tower .
2 Answers Construction, Honda,
Iwould like to know barc interview questions
Do you know the alignment of a motor?
How to check AC & DC Choke
How much water ( Kilo Liters) a submercible pump of 35 HP can lift from Borewell of 6" and 900 feet dip.
On what basis primary and secondary of a transformer is chosen?
what are carbondioxide and dcp used in fire extinguishers
what is mean by NPS (Negative phase sequence)fault? what is the difference between EFR & OCR faults?
0 Answers TNEB Tamil Nadu Electricity Board, Vestas,