지중배전선의 표면에는 1.4285×104 A/m로 지중배전선이 약 1.8배의 값을 나타남을 확인할 수 있었다.
On the surface of the underground feeder, it was confirmed that the value of the underground feeder was approximately 1.8 times that of 1.4285×104 A/m.