How do you select a cable size(Cu & Al) for a particular load?

How do you select a cable size(Cu & Al) for a particular
load?

Question Posted / guest

2 Answers
5308 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

How do you select a cable size(Cu & Al) for a particular load?..

Answer / mrinal

At first calculate the current of the load, after that
derate the current considering derating factor(depending
on site condition and laying of cable) after choose the
cable size from cable catalog considering derating current.
After that measure the length of cable required from supply
point of load to load poin. Calculate the voltage drop
which will max 3% (resistance and reactance of cable found
from cable catalog of selecting cable) if voltage drop>3%
then choose next higher size of cable.

Is This Answer Correct ?

5 Yes

0 No

How do you select a cable size(Cu & Al) for a particular load?..

Answer / santhosh k.m

actualy we take cables in current rating

1 Sq.mm = 0.8 or 0.9 A for power cables.

Is This Answer Correct ?

2 Yes

3 No

Post New Answer

More Electrical Engineering Interview Questions

What is the difference between MCB and Earth MCB? What is the working principal of MCB?

2 Answers

What is d main advantage of using double circuit 3 phase transmission ?

0 Answers UHG,

What is the use of bundle conductors?

0 Answers

what will happen if we use earthing inplace of neutral for domestic energy meter

5 Answers Polyplex Corporation Limited,

What is the acessaries distribution transformer ?

11 Answers Bhel,

A synchronous motor is operating at a leading power factor .if the applied voltage is decreases ,(the excitation remains constant ) ,the motor current a)increases b) decreases c)remains same d) none of these

2 Answers

WHAT IS NORMAL VECTOR GROUP USED FOR DESIGNING OF TRANSFORMERS??

11 Answers

why stator winding of synchronous machine are connected in star connection ?

1 Answers

Explain Clearly Pahase and Neutral?

7 Answers

what is the IEC standard for Power Cable installation in onshore (like in direct buried ground or above groung)

0 Answers L&T,

What the capacitor Current formula?, For 1 KVAr how amps its required? for using the KVAr for boosting the PF Design Calculation.( Eg: for 30 KVAr required how many KW?)

17 Answers Alstom, Call Centre, EDC, HCL, Procon Engineers,

Why we are testing a tan delta test in transformer? which purpose conduting that test? and time priode test?

1 Answers

For more Electrical Engineering Interview Questions Click Here