A Study on the Ignition and Molten Mark Analysis of Ballast for Fluorescent Lamp

형광등용 안정기의 발화 및 용융흔 분석에 관한 연구

In this paper, we reported an outbreak of fire hazard of ballast for fluorescent lamp. The surface structure and composition of ballast coil analyzed by using metallurgical microscope, scanning electron microscope(SEM) and energy dispersive x-ray spectroscopy(EDX). The surface of molten mark appeared columnar structure and void. EDX analysis indicated that the molten mark spectra were composed not only of the corresponding original spectra but also of several new lines.