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SUN Jiping, PENG Ming, PAN Tao, et al. Research on the safety threshold of radio wave explosion-proof[J]. Journal of Mine Automation，2023，49(2)：1-5. DOI: 10.13272/j.issn.1671-251x.18072
Citation: SUN Jiping, PENG Ming, PAN Tao, et al. Research on the safety threshold of radio wave explosion-proof[J]. Journal of Mine Automation，2023，49(2)：1-5. DOI: 10.13272/j.issn.1671-251x.18072
shu

Research on the safety threshold of radio wave explosion-proof

  • 1.

    School of Mechanical Electronic and Information Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China

  • 2.

    CHN Energy Information Technology Co., Ltd., Beijing 100011, China

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  • Received Date: January 10, 2023
  • Revised Date: January 25, 2023
  • Available Online: February 26, 2023
    Graphical Abstract
    • Abstract
  • The powerful radio waves can ignite explosive gases. Therefore, it is necessary to reasonably set the radio wave explosion-proof safety power and energy threshold emitted by the radio transmitter to limit the radio wave power and energy emitted by the radio transmitter. The radio wave explosion-proof safety power and energy thresholds specified in European Standard CLC/TR 50427:2004 Assessment of inadvertent ignition of flammable atmospheres by radio-frequency radiation-Guide are the ignition power and energy threshold. The national standard GB/T 3836.1-2021 Explosive atmospheres-Part 1: Equipment-General requirements and the international standard IEC 60079-0:2017 Explosive atmospheres-Part 0: Equipment-General requirements directly cite the radio wave explosion-proof safe power and energy threshold specified in the European standard CLC/TR 50427:2004. But the continuous radio wave explosion-proof safe ignition power threshold is incorrectly modified as the product of the effective output power of the transmitter and the antenna gain. This leads to the reduction of the continuous radio wave explosion-proof safe transmission power threshold. Under certain transmission attenuation and reception sensitivity conditions, the wireless transmission distance is reduced. This is not conducive to the promotion and application of mine wireless communication system and personnel positioning system. Therefore, the safe power threshold for continuous radio wave explosion-proof specified in national standard GB/T 3836.1-2021 and international standard IEC 60079-0:2017 should be the ignition power threshold, not the product of the effective output power of the transmitter and the antenna gain.
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