WHAT IS THE THUMB RULE FOR DECIDING THE CURRENT RATING OF
COPPER WIRES SAY 2.5/4/6/10 MM SQUARE SIZES??
- 14 Answers
- 60598 Views
- Dubai Group, Saudi Delta Groups, Savitha Electricals, I also Faced
- E-Mail Answers
Answer Posted / arun kr. singh
The Thumb rule is:
Size of cable x 4 = Current rating of cable.
e.g rating of 2.5mmsq cable is: 2.5x4=10A
for 4mmsq cable is: 4x4=16A
6mmsq cable is: 6x4=24A
10mmsq cable is:10x4=40A
| Is This Answer Correct ? | 7 Yes | 23 No |
Post New Answer View All Answers
What is the most essential condition for the voltage build up for a d.c. Shunt generator?
does buccholz in a transformer use batteries
explain me the relation between torque, frequency,speed,voltage and current in the 3 phase induction motor?
What do you mean by Frame 5 Gas Turbine as well as Mark II.
How a band pass filter is constructed?
how to select electrical equipment such as fuse,dg,transformer,motor,msb,wire,cable as per the connecting load..please mention any books to design,take licence
What are the weight of 800KV DA,DB and DC type tower ?
Haw to check conductivity of budbar
Why insulation level follows this order? transformer < bus bar < circuit breaker & Isolator < transmission line.
how we calculate the short circuit capacity of the busbar in LV & HT?
In Power Line Communication (PLC) the wave trap is used to block communication signals from entering neighboring lines. My question is this: Why do they allow for different filtering arrangements on these wave traps? Isn't it always going to be a low pass filter since we want the power frequency to go through, and the comm signal blocked?
What should be the amps for a MV fuses for transformer 630kVA 20(10)/0.4 kV
why ht motors are star connected?
Hello Friends, How can we recognize the CT Star Point is S1 or S2 in case of Electro Mechanical Relays and what is meant by Restraining coil in relays and what is the purpose of that.. thank you in advance..
show the single line diagram of star delta starter with single phase preventer
