Analysis of electric and magnetic fields distribution and safe work zone of 154 kV power line in underground power cable tunnel

Abstract

Abstract In the present study, Electric and magnetic fields distribution status was measured around power cables inside an underground power cable tunnel and the results were compared with domestic and foreign Electric and magnetic fields exposure standards to find a safe distance of approach. It is suggested to visually mark the finding in the workplace inside the power cable tunnel. The underground power cable tunnel subject to this study measurement is in a box form with 2.2\xa0m width and 2.35\xa0m height, which serves nearby apartment and collective housing areas. The power cable is 154 kV cross-linked polyethylene insulated sine wave, corrugated extrusion aluminum sheath vinyl (CAZV) cable. Electric and magnetic fields was measured at 5\xa0cm intervals from the cable to 1 square meter horizontally and safe work zone was marked in accordance with the domestic exposure standard. By visually showing the degree of exposure to Electric and magnetic fields to workers entering the power cable tunnel every day, it is expected to help ease their mental anxiety about Electric and magnetic fields and prevent possible negligent accidents. To ensure safety, the range of exposure to Electric and magnetic fields found in the current study can be referred to while designing an underground power cable tunnel.