• 제목/요약/키워드: electric fire

검색결과 579건 처리시간 0.036초

대기전력차단으로 인한 에너지절약과 전기화재예방에 관한 연구 (A Study on the Energy Saving and Electric Fire Prevention was Caused by with Interception of Standby Electric Power)

  • 김만건;임성진;이창우
    • 한국화재조사학회논문지
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    • 제11권1호
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    • pp.66-73
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    • 2008
  • 본 연구에서는 한국전기안전공사 서울지역본부 내 전기 전자 제품을 선정하여 각 기기의 전력사용량을 측정하고, 각 기기에 대해 대기전력 차단장치인 세이버 설치 전 후의 대기전력을 측정함으로서 평상시와 전원의 "OFF"시 대기전력을 비교함으로서 절전효과를 조사하였다. 연구결과 대기전력 차단장치인 세이버를 설치하였을 경우 전기 에너지 낭비요인을 원천적으로 제거함으로서 약 18%의 절전효과가 있었으며, 대기전력을 차단함으로서 전기화재를 근원적으로 예방하고 서지 등 이상전압에 의한 충격을 방지함으로서 전기 전자제품의 수명을 연장할 수 있었다.

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저압 배전선로의 누전 및 배선용 차단기의 오동작 방지를 위한 고속형 전기안전 보호장치 (Electric Safety Protection Device of High Speed for Incapable Operation of ELB and MCCB Using the Low Voltage Distribution Line)

  • 곽동걸;정도영
    • 전기학회논문지
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    • 제56권11호
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    • pp.1925-1929
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    • 2007
  • This paper is studied on a novel Electric Safety Protection Device (ESPD) of high speed for incapable operation of Earth Leakage Circuit Breaker (ELB) and Molded_case Circuit Breaker (MCCB) using the low voltage distribution line. The major causes of electrical fire are classified to short circuit fault, overload fault, electric leakage and electric contact failure. The occurrence factor of the fire is electric arc or spark accompanied with electrical faults. Residual Current Protective Device (RCD), that is ELB and MCCB, of high sensitivity type used at low voltage wiring cuts off earth leakage and overload, but the RCD can't cut off electric arc or spark to be a major factor of electrical fire. As the RCDs which are applied low voltage distribution panel are prescribed to rated breaking time about 30[ms] (KS C 4613), the RCDs can't perceive to the periodic electric arc or spark of more short wavelength level. To be improved on such problem, this research development is proposed to a novel ESPD of high speed to trip of distribution line on electric arc or spark due to electrical fire. Some experimental results of the proposed ESPD are confirmed to the validity of the analytical results.

아크사고 발생 시 전압 왜형파를 이용한 아크차단기 개발 (Development of Arc Fault Circuit Interrupter Using the Distorted Voltage Wave in Electric Arc Faults)

  • 곽동걸
    • 전기학회논문지
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    • 제62권6호
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    • pp.876-880
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    • 2013
  • The major causes of electrical fire are classified to short circuit fault, overload fault, electric leakage and electric contact failure. The principal factor of the fire is electric arc or spark accompanied with such electric faults. Earth Leakage Circuit Breaker (ELB) and Molded_case Circuit Breaker (MCCB), that is, Residual Current Protective Devices (RCDs) used on low voltage distribution lines cut off earth leakage and overload, but the RCD can not cut off electric arc or spark to be a major factor of electrical fire. As the RCDs which are applied in low voltage distribution panel are prescribed to rated breaking time about 30[ms] (KS C 4613), the RCDs can't perceive to the periodic electric arc or spark of more short wavelength level. To improve such problems, this paper studies on an arc fault circuit interrupter (AFCI) using the distorted voltage wave in electric arc faults. The proposed voltage sensing type AFCI is an electrical fire prevention apparatus of new conception that operates a circuit breaker with sensing the instantaneous voltage drop of line voltage at electrical faults occurrence. The proposed AFCI is composed of control circuit topology using some semiconductor switching devices. Some experimental tests of the proposed AFCI confirm practicality and the validity of the analytical results.

전기적 열선의 발화 및 화재 위험성에 관한 연구 (A Study on Ignition and Fire Risks of Electric Heat Wire)

  • 민세홍;송병준
    • 대한안전경영과학회지
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    • 제17권4호
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    • pp.113-121
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    • 2015
  • This study aims to examine the risk of electrical fire in places where electric heat wires are used. In general, the use of electric heating wires is becoming more common and prevalent in a bid to prevent increasing damage caused by freezing and bursting in residential water pipes, factory pipes and irrigation pipes in vinyl greenhouse and a variety of heat wire products are available in market with legal safety requirements imposed on them. However, the widespread use of anti-freezing burst heat wire products has caused increasing incidents of fire, which often fail to be incorporated into statistics due to quick onsite extinguishing and insignificant damage although damage is gradually on the rise. Against this backdrop, this study aims to look into the possibility of ignition caused by electric heat wires and the mechanism of how it turns into catching fire through overheat and short circuit tests for anti-freezing burst electrical heat wires (hereinafter called the 'heat wire') and expects to serve as the basis for further observations and analyses on the cause of fire and the process of ignition in a scientific manner.

LED 램프용 안정기에 대한 화재 및 감전 시험법에 관한 연구 (The Testing Methods of The Fire and The Electric Shock on the LED Lamps Supply)

  • 장인혁;나현준;이창훈;김명수;오근태;임홍우
    • 한국신뢰성학회지:신뢰성응용연구
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    • 제15권3호
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    • pp.163-169
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    • 2015
  • In this paper, the evaluating test methods of the fire and the electric shock on the led lamp supply using the house is proposed. We analyzed FMEA in order to analyze the mechanism of the fire and the electric shock of the led lamp supply and designed durability tests on the environment ($85^{\circ}C$, 85% R.H.) and obtained through the two-step QFD and tested. We verified the evaluating test methods of the fire and the electric shock on the led lamp supply using the house through the analysis of the test results.

퍼지논리를 적용한 전기적 접촉불량 및 아크 검출에 관한 연구 (A study on the detection of poor contact and arcing fault using a fuzzy logic)

  • 김현우;김인태
    • 한국화재소방학회:학술대회논문집
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    • 한국화재소방학회 2007년도 추계학술논문발표회 논문집
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    • pp.205-210
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    • 2007
  • This study on the prevention of electric fire. Generally the electric fire is caused by break or disconnection of the power line, short circuit and poor contact, arcing fault ect. In these causes, this paper is studied on the detection of poor contact and arcing fault. The arcing fault is caused by poor contact mainly. The arcing fault can occurs a electric fire by interaction of flammable gas and materials and it can be caused of tracking and carbonization. These phenomenons is also caused of electric fire. Therefore this paper is studied on the detection of arcing fault and poor contact.

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가연물 접촉에 따른 전기히터의 화재위험성에 관한 실험적 연구 (An Experimental Study on the Fire Risk of Electric Heaters According to Contact of Flammable Materials)

  • 이성룡
    • 한국화재소방학회논문지
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    • 제25권3호
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    • pp.63-71
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    • 2011
  • 본 연구에서는 대표적인 계절용기기인 전기히터에 대하여 발화위험성을 평가하였다. 실험에는 2종류의 전기히터가 사용되었다. 전기히터 가동 시 히터 표면 및 주변의 온도변화를 측정하였으며, 내부 비파괴검사를 통하여 전기히터 내부구조를 파악하였다. 전기히터 화재원인 중 가장 높은 비율을 차지하는 가연물 근접방치에 의한 화재위험성을 평가하였다. 또한 전도 안전스위치 오작동에 의한 발화위험성을 평가하였다. 정상작동 시 전기히터 발열제 주위에서 온도가 $80^{\circ}C$ 이하로 유지되었다. 전기히터 가동 중 가연물 낙하 등으로 인하여 히터를 덮거나 안전장치(전도안전스위치, 과열방지장치)의 오작동 등에 의해 발화위험성이 상존하고 있다.

고정밀 전류센서를 이용한 이중 차단용 전기화재 방재장치에 관한 연구 (A Study on Electrical Fire Disaster Prevention Device used in Double Circuit Break)

  • 박동필;곽동걸;정도영;김춘삼;신호준
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2008년도 제39회 하계학술대회
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    • pp.2102-2103
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    • 2008
  • The major causes of electrical fire are classified to short circuit fault, overload fault, electric leakage and electric contact failure. The occurrence factor of the fire is electric arc or spark accompanied with electrical faults. Residual Current Protective Device(RCD) of high sensitivity type used at low voltage wiring cuts off earth leakage and overload, but the RCD can't cut off electric arc or spark to be a major factor of electrical fire. As the RCDs which are applied low voltage distribution panel are prescribed to rated breaking time about 30[ms](KS C 4613), the RCDs can't perceive to the periodic electric arc or spark of more short wavelength level. To be improved on such problem, this paper is proposed to a electrical fire disaster prevention device(EFDPD) for a RCD trip or a self circuit-breaking function on electric arc or spark due to electrical fire. Some experimental results of the proposed apparatus is confirmed to the validity of the analytical results.

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전기다리미의 발화원인 판정에 관한 현상학적 고찰 (A Phenomenological Review on the Decision on the Cause of Ignition of Electric Iron)

  • 문용수;공하성;이종화
    • 대한안전경영과학회지
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    • 제11권1호
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    • pp.43-49
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    • 2009
  • This study set three kinds of situation and observed the various states such as carbonization by experimenting damages by fire of electric iron. The results of this study are as follows: The fire did not occurred when the unpowered iron over mattress and cotton shirts was com busted completely by external flame because the temperature of surface of soleplate and mattress did not reach the minimum ignition energy and when the powered electric iron over mattress and cotton shirts was left for an hour with its temperature dial set to high because the temperature of combustibles did not reach the minimum ignition energy. The fire occurred when the electric iron in which the outer box, bi-metal switch, and temperature fuse were removed over mattress and cotton shirts was powered by through heater terminal, and then the electric iron, mattress, and cotton shirts were combusted by the fallen combustibles because the temperature of combustibles reached to the minimum ignition energy with the help of active transfer of heat.

전기레인지의 특성과 화재 위험성에 관한 연구 (A Study on the Characteristics & Fire Hazard of Electric Range)

  • 이정일;하각천;김지명
    • 한국재난정보학회 논문집
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    • 제15권3호
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    • pp.380-390
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    • 2019
  • 연구목적: 최근 전기레인지의 사용증가와 더불어 화재도 증가하고 있다. 전기레인지 중 대표적인 인덕션과 하이라이트 방식에 대해 구조 및 작동방법을 알아보고 화재위험성을 살펴보고자 하였다. 연구방법: 두 방식에 대하여 연소실험, 전열실험, 발화실험 등을 실시하였다. 연구결과: 하이라이트 전기레인지는 키친타월이 2분 후 연소되었고, 조리를 마친 후 잔열이 식는데 약 25분이 소요되며, 니크롬선의 붉은 기운이 3~4분 만에 사라지고 불꽃이 보이지 않았다. 결론: 실험 결과 하이라이트 방식은 화상 및 화재 위험성이 존재하며, 특히 상판에 균열이 있을 경우 화재 및 폭발의 위험성이 있음을 알 수 있었다.