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전력케이블의 반도전 재료에서 불순물 및 물성 측정

Measurement of Impurities and Physical Properties at Semiconductive Shield of a Power Cable


In this paper, we investigated ionic impurities and physical properties by change of carbon black content, which is asemiconductive material for underground power transmission. Specimens were made into sheet form with three existing resins and nine specimens for measurement. The ionic impurities of the specimens were measured using anICP-AES (Inductively Coupled Plasma Atomic Emission Spectrometer), and the density of specimens was measured by a density meter. Specific heat (Cp) was then measured using aDSC (Differential Scanning Calorimetry). The ranges of measurement temperature were from 0[$^{\circ}C$] to 200[$^{\circ}C$], and heating temperature was 4[$^{\circ}C$/min]. Ionic impurities were measured to be high according to increases in the content of carbon black from this experimental result and density was also increased according to these properties. In particular, the impurity content values of A1 and A2, and existing resins, were measured at more than 4000[ppm]. Specific heat from the DSC results was lowered according to augmentation in the content of carbon black. The ionic impurities of carbon black containing Fe, Co, Mn, Al and Zn are forms of rapidly passed kinetic energy that increase the number of times breaking occurs during unit time with the near particles according to an increase in the vibration of particles by the applied heat energy.

참고문헌 (10)

  1. J.H Han, S.J Kim, O.H Kweon, H.T. Kang, K.S. Seo, 'A Effect come to Reliability of Power Cable against Impurities in Semiconductive Shield', Trans. KIEE, Vol.46, No.1, 1997 
  2. Y.H Han, J. W Jung, T. H Kwon, H. S Song, K.S Koo, B.S Han and B.S Han, 'Development of Waterproof Jacket Materials for Power Cables' KIEE Inter. Trans. on EA, Vol.3, No.4, August, 2003 
  3. M. T. Shaw and S. H. Shaw, 'Water Treeing in Solid Dieletrics', IEEE Trans. Elec. Ins., Vol.19, pp.419-452, 1993 
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  5. Y. H Lee, J. C Lee, Y. S Choi, D. H Park, 'Partial Discharge Properties of PET Film with Carbon Black', KIEE Inter. Trans. on EA, Vol. 4-C, No.1, pp. 1-4, 2004 
  6. 22.9kV CV/CV-W Korea Electric Power Corporation, ES 126-650~664 
  7. J.H Han, K.S. Seo, S.J Kim, 'Ion Permeability and Physical Properties of Ethylene Vinyl Acetate Copolymer/ Ethylene Acrylic Acid Copolymer Blends', Trans. KIEE, Vol.45, No.9, 1996 
  8. Y.G Cheun, J.K Kim, D.S Ham, J.S Kim, 'Thermal and Mechanical Behavior of EVA Depending on Vinyl Acetate Content', Polymer(korea), Vol. 15, No. 4, pp. 402-410, 1991 
  9. K. M Shong, C. S Choi, Y. S Roh, H. R Kwak, 'Carbonization Characteristics of Phenolic Resin Deteriorated by Tracking', Trans. KIEE, Vol. 53, No. 1, 2004 
  10. S.J Park, K.S Cho, M. Zaborski, L. Slusarki, 'Filler-Elastomer Interactions. 6. Influence of Oxygen Plasma Treament on Surface Properties of Carbon Blacks', Elastomer, Vol. 37, No. 2, pp. 99-106, 2002 

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