| Title |
Analysis of Properties Variation of Thermal Deteriorated 600V Grade Hest-Resistant Polyvinyl Chloride Insulated Wires |
| Authors |
최충석(Choe, Chung-Seok) ; 이경섭(Lee, Gyeong-Seop) ; 이덕출(Lee, Deok-Chul) |
| Keywords |
Metallurgical microscope ; 600V Grade Heat-Resistant Polyvinyl Chloride Insulated Wire(HIV) ; Scanning Electron Microscope(SEM) ; Energy Dispersive X-ray Spectrometer(EDX) ; Differential Thermal Analysis(DTA) |
| Abstract |
The properties variation by deterioration of the 600V grade heat-resistant polyvinyl chloride insulated wire(HIV) was analyzed. The weight variation of the thermal deteriorated HIV was about 42% at 800°C and over. From the analysis result of the metallurgical microscope photographs it shows that the sorface of normal wire showed the elongated structures. However the elongated structures did not appear at 900° and over and we could observe that particles were grown. The grown oxidized substances in the thermally deteriorated electric wire were observed by SEM. The CuL, CuK, CuK_b, OK and CIK spectra of the thermally deteriorated HIV at 300°C were uniform regardless of the scanning length, but the spectra of CIK could not found at above 700°. At the DTA analysis, the endothermic reactions were occurred around 3006°C and 400°C and the exothermic reactions were occurred around 470°, respectively. |