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Fire Sci. Eng. > Volume 29(3); 2015 > Article
Fire Science and Engineering 2015;29(3):53-58.
DOI:    Published online June 30, 2015.
소방전원계통의 전원용량과 간선의 전압강하에 대한 문제점 분석
최승규, 손봉세
2가천대학교 소방방재공학과
Problem Analysis of Power Capacity and Main Line Voltage Drop of Electric Power System for Fire Protection
Choi Seung-Kyou, Son Bong-Sei
1Dept. of Electrical Engineering, Korea Technology Education Univ.
2Dept. of Fire & Disaster Protection Engineering, Gachon Univ.
최근 소방대상물의 대형화는 소방전기계통의 용량과 간선길이를 급격하게 증가시키고 있어, 과거의 소규모 소방대상물에서는 문제가 되지 않았던, 소방전원의 용량부족과 간선의 전압강하 증가로 규정전압을 벗어나는 문제점를 발생시키고 있다. 이러한 문제점은 소방용 전원전압이 규정전압에 미달되어 각종 전기설비가 동작하지 못하는 심각한 결과를 초례할 수 있다. 이에 본 논문에서는 실제 준공된 소방대상물을 대상으로 전원공급장치의 용량 및 소방전기간선의 전압강하를 이론적으로 계산하여 문제점을 도출하고 분석하여, 소방전원계통에서 소방용 전원의 안정적이고 합리적인 설계와 운용에 대한 대책이 요구됨을 확인하였다.
The number of high-rise buildings and skyscrapers has increased drastically, and accordingly, the power capacities and main line lengths of electric power systems for fire protection are also rapidly increasing. This is generating new of problems like shortages in power capacities and increases of main line voltage drops outside of the rated voltage range. This problem can have serious effects on fire protection systems and a variety of electric devices may not work properly in emergencies. As such, theoretical calculations were performed for these systems in an actual fire protection facility. The problems in the electric power system were extracted and analyzed, and the results show that it is necessary to search for new measures for the safe and rational design and operation of electric power systems for fire protection.
Key Words: Electric power System, Shortage of power capacity, Voltage drop

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