Answer / mohamed mustafa

Mechanical strength of CU is more than ALU
cu has more corrosion resistance than alu
resistivity of cu is less than ALu so a good conductor current

Answer / vinod

---> Copper (Cu) was a good CONDUCTOR (good conductivity) than
Aluminium (Al).
---> Al is cheaper than cu
---> Earthing was done because of excess of electrons passes
through the Equipment/Device hence the device was damaged. So
Earthing prevents equipments from (excess of
electronics)damage.

what is the advantages of having in-built acvvvf (without seperate inverter in the control panel)in the drive system of elevators?

0 Answers  

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what is the different between earth leakage relay and earth fault relay?

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write encoder 17 pins details? pin a;b+, pin b;w+,..pin s & t. what is the meaning of b+, w+? explain;

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What’s electric traction?

0 Answers  

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0 Answers  

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4 Answers  

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how was the induction stove working?

3 Answers  

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In winter we seem lightly an electric shock when we touch to doors(sometime)

13 Answers   Infosys, REL,

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