150W급 Ex d IIC T6 LED 내압방폭등 개발에 관한 연구

Abstract

In this paper, the development of the LED lighting luminaire with Ex d IIC T6 specification using the rib structure of the thermal fins was studied. With the LED packages of Cree's XP-L model, a prototype of 150 W class LED luminaire was designed and fabricated. And then the lighting characteristics and explosion-proof characteristics of the fabricated prototype were evaluated. As a result of thermal effective tests, it was found the thermal dissipation of heatsink plate with rib structure. As a result of the tests on the lighting characteristics, luminaire efficiency was measured to 104 lm/W satisfied the certification criteria for high efficiency energy equipment. And also it was measured to 81 of the color rendering index(CRI) were and to 5,240 K of the correlated color temperature(CCT). And finally, as a result of the versatile explosion test on the prototype developed in this study, it was found that the product satisfied Ex d IIC T6 rate. The maximum surface temperature was measured to 52.5 ℃ and it was equivalent to T6 grade. The manufactured luminaire with screw connection structure was proved to be suitable for IIC gas group. And it was passed the test on impact resistance, 66 to IP rating, reference pressure test, overpressure test and explosion ignition test.