Recent content by jaymin nayak

yes its corrosion but i didn' know the reason. Please tell me the reason

we have one copper 8mm. rod and we draw and make it .3 mm by drawing m/c. And also doing anneling. But after some days copper become black in the cable. what is the reason for copper black & how i found the problem and solve it.

I have to calculate the dc resistance of 1.5 mm2 flexible copper wire . How i can calculate?

Which wire has more current carrying capacity PVC insulated or Rubber Insulated ? Why?

I have been given u some data which I have. Thickness of insulation is 0.70 mm. Ambient air temperature is 40'c. Max. conductor temperature is 70'c.Thermal resistivity of PVC is 620'C cm/W. The length of the cable is 1m. & it's max. resistance is 12.1 ohm per km. Sir i have only that data & I...

I have to measure current carrying capacity just at room temperature(27'c). I just need simple practical. The wire is PVC insulated.

I have wire of 1.5 mm2(Flexible). Now i want to measure it's current carrying capcity how i can measure it's current carrying capacity?

i want to know that if we provide more & more insulation on wire than it's current capacity will increase or not? What is the effect of insulation on current carryin cacity?