| 摘要 |
<p>The present invention relates to an end lamp apparatus installed in an industrial heating cable system. According to the mechanism of the end lamp apparatus, a first LED lamp (111) is turned on when the power supply of a heating cable (10) is normally operated. A predetermined time is counted in consideration to a temperature control of a temperature control box (200) when a power supply is cut off. Battery power is supplied to a second LED lamp (112) when the cut off time of the power supply reaches a predetermined time.</p> |
