Interested to Buy Any Domain ? << Click Here >> for more details...
WHAT IS THE THUMB RULE FOR DECIDING THE CURRENT RATING OF
COPPER WIRES SAY 2.5/4/6/10 MM SQUARE SIZES??
- 14 Answers
- 64459 Views
- Dubai Group, Saudi Delta Groups, Savitha Electricals, I also Faced
- E-Mail Answers
Answer Posted / simon
The rule of thumb for current carrying capacity of copper
wire is 6 amperes per square millimeter of cross-sectional
area for an insulated, uncooled conductor.
Therefore the following applies:
1.0mm 6A
1.5mm 9A
2.5mm 15A
6.0mm 36A
Note that with air cooling, such as within an electric motor
or generator, the current carry capacity of the conductor
may be as high as five times the figures above (up to
30A/mm2) but is dependent on the efficiency of the cooling.
| Is This Answer Correct ? | 27 Yes | 31 No |
Post New Answer View All Answers
Can u explain : what is supply for train (whether a,c or d.c ).I know that supply is 25000v a.c .But there is rumour that supply is D.C. And also explain how lights and fans inside the trains are working ,and what type of motors are used in trains whether D.C motors or induction motors .If d.c motor, how it gets supply.If traction motors are used then what are traction motors and its functions and how it differs from other motors and also explain about locomotive . y d.c series motor in train.train wheels r driven by D.C shunt motor ,at what voltage,and at what speed. please reply..............
why current flow to the opposite direction of flow of electrons???????????
I have iti elec, 1st aid, and 5 yrs experience in 7.5 mw power plant. Am i eligeble for 11kv license in telangana state..when, how to apply for that.?
Why do we avoid electrical conduits in floors at apartments?
what is the pulse and audio frequency transformer? what is different between induction regulators and tap changing transformer?
Should power factor be low or high?
What is the difference between single point and double point bonding. please kindly detail about bonding of cables.
what is excitation/
Which test will be more severe for VCB?
What will be the output voltage of a transformer if it is primarily energized from a square wave voltage source?
how to CHECK CT AND PT AT THE FAULT OCCUR IN GENERATOR RELAY PANEL .
anyone please send transformer parameter design formulas & details of tap changer ? plz i have interview this week its more helpful for me ?
a battery is having capacity 100AH and 25% charging .if a load taking 10A & connected 6 hour .what is the final condition of the battery.
tell me about roaster switch .& what is the function in transmission & distribution?
Why does inductive loads consume KVARs?
