| Title |
Copper Oxide Growing Characteristics of PVC Insulated Wire and Application to the Fire Investigation |
| Authors |
김향곤(Kim, Hyang-Kon) ; 최충석(Choi, Chung-Seog) ; 김동욱(Kim, Dong-Ook) ; 최효상(Choi, Hyo-Sang) |
| Keywords |
PVC Insulated Wire ; Copper Oxide ; Glowing ; Fire Investigation ; Contact Voltage |
| Abstract |
This paper describes characteristics for copper oxide growth of polyvinyl chloride(PVC) insulated wires by series arc. In this experiment, 600V IV wires were used, and characteristics of oxide growth and ignition process were analyzed in case load was 300W, 460W and 600W, respectively. In the result of experiment, covering materials were molten, carbonized and ignited, whereas, oxidized materials were grown in conducting material. During copper oxide was growing, contact voltages and power dissipations increased. When there is copper oxide growth, the waveform of current showed sinusoidal waveform, and the waveform of voltage showed modified waveform. Oxidized materials were heated at about 905^{\circ}C, surface structure showed irregular shapes, and cross-section showed multiple cracks. And, the results of this experiment were applied to the fire cause analysis of fire evidence collected at the fire scene. |