Service Life Evaluation of Nuclear Power Plant Cable

Abstract:

In this article we present our evaluation of the service life of the 6/10kv nuclear power plant electrical cables joint developed by our school and cooperative enterprise. The evaluation is based on the thermal life equation evolved from the Arrhenius equation: Log τ = a + b / T. Taking into account the effects of the manufacturing process on the service life of the cable, all of our samples are chosen directly from the factory finished product. The material of the first sample is cross-linked polyethylene, and the material of the second sample is low-smoke non-halogen cross-linked polyolefin. In our service life evaluation test design scheme, the test temperature is selected as 135 °C -180 °C, and the temperature range is 15 °C. The end-of-life elongation at break is by 220% for the first sample, and 140% for the second sample. In the article, we discuss the experiment process in more detail, and we keep accurate records of the relevant data. To improve the accuracy, we use the least squares method to process the test data. The results show that the service life of the cable can be up to 60 years and fully meet the design standards and user requirements.

• Periodical: Advanced Materials Research (Volumes 512-515)
• Pages: 890-893
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.512-515.890
• Online since: May 2012
• Authors: Feng Tian, Yan Rong Ni, Wen Su
• Keywords: Aging, Nuclear Power Cable, Service Life Evaluation, Thermal Life Equation

References

[1] R.Z. Aminov, A.E. Borisenkov and N.A. Oleinik, Atomic Energy, Vol.94, Number, Number 4, (2003), p.278

[2] A.A. Potapov V.M. Panin and S.G. Ukharov,Atomic Energy,Vol.100,(2006), p.302

[3] Li Zang, China Safety Science Journal Vol.02(2000), p.16,In Chinese

[4] Tie-jun Wang, Naval University of Engineering Journal Vol.01(2000), p.15, In Chinese

[5] Zhong-qi Yu, Tianjing Business School Journal Vol.03(2002), p.d32, In Chinese

[6] Hun-Jiang wang, "Wire and cable Manual A", Mechanical Industry Press, 2001, In Chinese