| 摘要 |
The present invention relates to a lighting device for an electromagnetic wave shielding room. A conventional lighting device installed on a ceiling to maintain and repair an electromagnetic wave shielding room for shielding an electromagnetic wave has a structure of vertically moving from the ceiling by a motor or a winch. However, due to a structure of a power supply device (SMPS), the electromagnetic wave is generated by a current to hinder accurate testing even when the lighting device or the motor is not operating. The lighting device for an electromagnetic wave shielding room according to the present invention resolves the problem, and comprises: a space unit which is disposed on a ceiling of an electromagnetic wave shielding room, and whose lower surface is open; a wire drum which is mounted thereon and rotated by a motor, and on which a lifting wire is wound; and an electric cable drum which is mounted thereon, and on which an electric cable is wound. The lighting device for the electromagnetic wave shielding room vertically moves a lighting lamp usually consisting of an LED suspended on the lifting wire, controls the motor and the lighting lamp, and further comprises: a mechanical motor control switch which is disposed in the space unit and controls the motor; a mechanical lighting lamp control switch which is disposed in the space unit and connects a power source to the lighting lamp; a mechanical internal switch to turn on/off the motor control switch and the lighting lamp control switch; and an external switch to control the internal switch outside the electromagnetic wave shielding room. |
