A practical formula for determining the thickness of insulation between low voltage and high voltage windings is________?
A5 + 0.9 kV mm
B1 + 0.2 kVmm
C4 + 0.7 kV mm
D2 + 0.5 kVmm
Correct answer
A. 5 + 0.9 kV mm
Explanation
The correct answer is 5 + 0.9 kV mm.