Study of Dynamics of the Fire for Indoor Type Electrical Power Center

• Main Authors: Huang Pei-Cheng, 黃培誠
• Other Authors: 辜志承
• Format: Others
• Language: zh-TW
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/59010206706020797069

碩士 === 國立臺灣科技大學 === 電機工程系 === 93 === The statistics showed that there were 10,571 fires averagely in Taiwan every year during the last decade and the fires have caused 230 deaths, 695 injuries, and a total of 3.2 billion NT of loss. Among all of the fires, the top cause of fire is by electric equipment which resulted to 2,241 fires. 23.9% out of all of the causes. Taiwan Power Company, industry plants, business and residential buildings have built the electric power distribution room indoors or underground enclosed area under the consideration of cost of construction, electric wave and noise problems which have attracted protests from the neighboring residents. These electric power centers are usually very small, clustered with cables, poor lighting, poor air circulation, limited emergency exits, and that will cause difficulties for rescue. When a fire has happened, the supply of oxygen will be insufficient which will result to incomplete burning. With the help from the plastic PVC or PE insulation jacket of the electric equipments, excessive amount of smoke will be produced and will flow all over the building through the vertical and surface pipes which will expand the fire. Indoor electric power center is being used as a tool for the study of behavior of fires. First of all, the heat source of the electric equipment, heat transfer method, and the characteristics and damage of burning will be studied. Following with the application of FDS published by NIST 2004, we can get the statistics regarding the smoke and heat when the electric equipment is on fire. With it, we suggest: (1)Arc detector, PD detector, VESDA, linear heat detector, heat and smoke detect system being applied to prevent and control the fire. (2) Ways to arrange the cable tray and piping in the throughout floors to block the smoke and heat in order to prevent the spreading of the fire. (3) Offer suggestions to the administration to fix the safety rules that are contradicting.