전원주파수의 변화에 따른 인화성 혼합기체의 최소점화에너지에 관한 실험 연구 = An Experimental Study on Minimum Ignition Energy of Flammable Mixtures by Electric Power Frequency

다국어 초록 (Multilingual Abstract)

With a progress of electrical and electronic technology, radio-frequency including high frequency components are widely to various industrial installations, Some of them are used in hazardous locations where explosive or flammable gases exist, As a result, ignition of such gases may be induced by a spark discharge when the radio frequency circuits are switched on or off. The purpose of this study is to investigate the ignition hazards of some kind of flammable mixtures based on the IEC 60079-I I publication. In this experiment, we used a high frequency resistive circuit which consists of a co-axial cable, a 20 Ω 30 Ω, 40 Ω and 50 Ω resistor and two kind of power amplifier with frequency range up to almost 1 MHz and 50 MHz. Experimental results show that the ignition of the acetylene-air, ethylene-air mixtures and methane-air mixtures due to spark discharge depends primarily on the frequency of the power source in the resistive circuit the minimum ignition voltage increases gradually with the increase of the frequency.

참고문헌 (Reference)

1 최상원, "고주파 전기회로의 개폐불꽃에 의한 혼합기체의 점화위험성" 3-6-3-13, 1995

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