Analyses of the Fire Protection Costs

This report presents an analysis of the costs of fire protection in the "electrical and mechanical" works. The fire protection investment rate, the number of stories and the gross floor area, for each occupancy extracted from a data base, are shown by using the single variate and correlation analyses. The results of the analyses show that the fire protection investment rate has a wide range of variation, particularly in shops and industries, and that no correlation is found between the number of stories or the gross floor area and the fire protection investment rate in any occupancy.Principal Component Analysis (PCA) and Cluster Analysis have been employed to determine the subjects of further detailed researches. By using PCA, five new characteristic features of the newly defined forty-two occupancies are discussed from fifteen variables, i.e. twelve different costs for fire protection items, the fire protection investment rate*, a specific space inside a building and a specific height of a building. The forty-two occupancies are then grouped together into eight clusters systematically, by using Cluster Analysis.Taking the above-mentioned results into consideration, office buildings are then chosen for further detailed researches.