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룸코너 시험을 이용한 배관용 보온재의 난연성능 분석

Evaluation of the Reaction-to-fire Performance of Pipe Insulation Material using Small Room Test

  • 임옥근 (한국소방산업기술원 기술연구소) ;
  • 남동군 (한국소방산업기술원 기술연구소) ;
  • 장효연 (한국소방산업기술원 기술연구소)
  • 투고 : 2019.06.20
  • 심사 : 2019.07.19
  • 발행 : 2019.08.31

초록

천장이나 배관에 설치된 보온재의 연소로 인해 화재가 확산되는 사례가 발생함에 따라 수계소화설비의 배관보온재는 난연재료 성능 이상의 것을 사용하고 있다. 배관보온재의 일부분을 시편으로 가공하여 난연성능을 평가하고 있지만 설치환경을 고려한 실규모시험을 통한 평가는 이루어지지 않고 있다. 본 연구에서는 국내에서 널리 사용되고 있는 발포폴리에틸렌폼 및 고무발포보온재를 실규모 시험기준인 ISO 20632에 따라 시험하고 유럽의 난연성능 분류 기준과 비교하였다. 배관보온재 재료별로 상이한 난연성능을 보였으며, 특히 발포폴리에틸렌폼보온재의 경우 시공방법에 따라 화재성장율 및 열방출율이 달라졌다. 화재발생 시 배관보온재로 인한 연소확산을 지연시키기 위해서는 설치하는 대상공간의 특성을 고려한 난연성능 적용이 필요하며, 시공 시 사용하는 접착제와 테이프 등 부자재의 난연성 또한 고려해야 함을 확인할 수 있었다.

Reaction-to-fire performance of pipe insulation materials should be approved in accordance with KS standards prior to installing water-based suppression systems because several fire accidents are initiated from insulation materials around ceilings or concealed space. A small room test to evaluate the reaction-to-fire performance of the polyethylene foam and elastomeric pipe insulation materials was conducted according to ISO 20632. Different fire growth rate and heat release rate are observed depending on the materials and construction methods. In order to improve a fire safety, the reaction-to-fire performance of pipe insulation material needs to be subdivided with regard to the heat release rate and smoke generation. Furthermore, the characteristics of the applying space are also required to be considered. Subsidiary materials for installation process such as tape and adhesive are found to provide an adverse effect to maintain a fire safety.

키워드

참고문헌

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