tell 2 reasons for why only copper is used in domestic
wires& only alluminium in transmission lines ?
Answer Posted / sanket patil
1.THE FIRST AND FOREMOST REASON IS THAT COPPER IS MUCH
COSTLIER THAN ALLUMINUM (APPROX 4 TIMES) SO TO RUN HUNDREDS
OF Km OF OVERHEAD LINES WOULD BE MUCH EXPENSIVE.
2.ON THE OTHER HAND CONDUCTIVITY OF Cu IS HIGHER THAN Al
HENCE THE SIZE OF Cu WIRE REQD TO CARRY SAME CURRENT AS OF
Al IS LESSER, ALSO THE LOSSES ARE LESS HENCE LOW TEMP RISE
AND LOW RISK OF INSULATION FAILURE AND SHORT CKT:- AN IMP
FACTOR FOR HOUSE HOLD APPLICATIONS.
Is This Answer Correct ? | 22 Yes | 1 No |
Post New Answer View All Answers
I want to know the 'Test voltage' for Tandelta testing of 3.3 / 6.6 / 11 KV Motors. Please explain
explain the Trip supervision circuit
Explain about 3 phase motor fault current calculation with examples?
An ISP is granted a block of addresses starting with 150.80.0.0/16. The ISP wants to distribute these blocks to 2600 customers as follows. a) 200 medium size businesses; each needs 16 addresses b) 400 small businesses; each needs 8 addresses c) 2000 households; each needs 4 addresses Design the subblocks and give the slash notation for each subblock. Find out how many addresses are still available after these allocations.
How to use earthing on shipments.
what is mean by dual digital protection in the relay field?
ROC converges if poles and zeros lie inside a. Origion b. Z=1
How we can calculate the Amps for the cable Ex:- For 1sqmm wire how many amps we can draw (calculation)
if a.c supply is given to the motor,, what happen?
hi this is hema, r there any books in particular for the preparation of the APPSC-A.E.E(electrical), if so please mail me the names ... thank u .
how to define tell me about self
Is there any standard guidelines/Criteria to design NGR/NGT.?
how to erect roof control panel?
What is meant by celling voltage & current in excitor ?
explain the functions of main isolation switches