Interested to Buy Any Domain ? << Click Here >> for more details...
IN CABLE TRENCH WHY FILL UP THE SAND. AND WHAT IS THE
DIFFERENCE BETWEEN OVER HEAD AND UNDER GROUND LAYING THE
CABLES
- 2 Answers
- 13876 Views
- Cable Wireless, I also Faced
- E-Mail Answers
Answer Posted / anil
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 |
Post New Answer View All Answers
sometime battery charged and then automatically charged when rectifier ON conition, is there any chances please clarify the same.
hello!my name is sheikh iam preparing for indian engineering servieces,please send me the old question papers..to sheikhshaazforjobs@gmail.com
Differentiate between voltage and current feedback in amplifiers?
pls tell what are doing the three phase motor star and delta connetion with circuit diagram and control wiring .
A 7 storey building has a floor area of 35,000sq.ft on each storey. On the ground floor 11KV electrical sub-station is to be erected. A load of 3kw for every 400sq.ft (p.f is 0.8) is proposed for each floor. fire pump 7.5hp, water pump 5hp, lift 2 nos, each 10hp and 20shop load of each shop is 5kw. calculate a. load each floor b. total load of building c. L.T feeders for aech floor and from transformer to main. d. distribution diagram e. capacity of sub-station/capacitor bank f. line diagram
How many capacitors using in LT panel as per Govt rules?
1600kva capacity Transformers how the bucholz relay,Oil temperature,winding,surge relay relays setting are to be done
what is package substation.how many types they have
Why the efficiency of a three-phase induction is the motor is less than that of a three-phase transformer?
HOW TO CALCULATE THE REGULATION OF 100 AND 25 KVA TRANSFORMER
The capacitive reactance of a capacitor of 1/(2(PI)) F at 10^3 H is
what is a pulse transformer? how rise time of pulse changes when ever the voltage changes?
what kind of quetions will ask in BHEL in interview? Plz help me?
I have 1500/1A CT If i connect this CT in 6.6KV bus bar means what will be the voltage present in CT?
What is the maximum breakdown voltage of 11KVA and 66 KVA power line and how it is calculated?
