# 재활용 가능한 폴리에틸렌과 폴리프로필렌의 전도도 온도의존성과 전력케이블 내의 전계분포에 미치는 영향

• Accepted : 2011.09.01
• Published : 2011.10.01

#### Abstract

In this work the recyclable new polyethylene(PE) and polypropylene(PP), which are thermoplastic, have been investigated as the eco-friendly insulating candidates to replace the cross-linked polyethylene (XLPE). The temperature dependence of conductivities of these materials has been measured and its effects on electric field and space charge distribution in polymeric insulated power cable under temperature gradient have been calculated. It is shown that the sensitivity of conductivity to temperature change has more critical influence to determine the electric field distribution in the power cable than the absolute value of conductivity does and it can be said that the temperature dependence is one of most important factors for the power cable design.

#### References

1. 이준호, EVA 블랜딩에 의한 가교폴리에틸렌에서의 워터트리 억제현상 연구, 박사학위논문, 서울대학교 대학원, 1992.
2. K. H. Ku, et al., "Development of New Recyclable Insulation Material for Power Cable", Proc. of JiCable 2011, 2011.
3. K. Yoshino, et al., "Property of Syndiotactic Polypropylene and its Application to Insulation of Electric Power Cable", Proc. of the 7th ICPADM, pp. 175-178, 2003.
4. C. Zhang, et al., "Space Charge Behaviors of Low-density Polyethylene blended with polypropylene copolymer", Polymer, Vol. 43, pp. 2261-2266, 2002. https://doi.org/10.1016/S0032-3861(01)00807-2
5. Kwang S. Suh, et al., "Space Charge in Grafted Polyethylene", Proc. of 1998 Int'l Sympo. on Electrical Insulating Materials, pp. 91-96, 1998.
6. R. Coelho, "Charges in Non Homogeneous Dielectrics", Proc. of 1997 CEIDP, pp. 1-10, 1997.
7. M. Zahn, Electromagnetic Field Theory: A Problem Solving Approach, Krieger Publishing Company, 1979.