Answer / rvg

For calculating cable size,for a specific load current,
following facts to be considered:

1.Maximum load current.
2.under ground or overhead laying
3.max. temperature withstanding capability of cable insulation.
4.max. voltage stress withstanding capability of cable
insulation.
5. distance of load from the power supply
6. AC/DC supply and frequency .

Answer / satya dev ( knight frank)

In that question, the follwing factors are not mentioned

for what current load u are selecting the cable size---??
for what the calbe length using for system---????
for what type of load has to be conneted--/?????



If above factor are availabe then we can claculate the
same. there is no exact formula to calculate the size of
cable without all above factors

Answer / praveen

here i think the question is asked considering the same
current is flowed by the wires.
we should consider the fact that in
aluminium the tensile strength is more. conductivity is
less but cost is also less.
so the span of aluminium is high. also the conductor size
is more. but even in that case the overall cost is less for
aluminium.

Answer / santhoshkumar

based load current

Answer / sabuj

GENERALYY ALUMINIUM cABLE CAN CARRY 2 TIMES OF RATED SQMM.
COPPER CABLE CAN CARRY APPROXIMATELY 4 TIMES OF RATED SQMM.

Answer / sulthanl

By the screw guage

what is the safety points of vaccum circuit breaker.

0 Answers  

why the electrolyte level in lead acid battery is maintained 2.5 cms above electrodes?

0 Answers  

what is current

53 Answers   Bio Enterprises, CLG, TCS,

Dear,  How much ph is maintained of water electrolite used in lrs for slipring induction motor ?

1 Answers  

How does the humidity affect in breakdown voltage of air?. Is the breakdown voltage increases with the humidity?

2 Answers  

Both generator parallel condition shared load equally but one genrator taking ampere more than the other what are all the causes to make like this

0 Answers   Ofer,

What is ferrite affects and what is disadvantage of ferrite affects.

1 Answers  

testing ZNYn11(d) vector group transformer

1 Answers  

what is form factor?

3 Answers  

plz tell me about BACK emf and how it generates?

2 Answers  

what is the terminal voltage of dc series generator running at rated speed at no load?

2 Answers  

What is relation between transmission lines & Communication lines ?

0 Answers   NTPC,