1. Introduction
2. Difference between the original SFP andthe SFPI cooling systems[1~3]
3. Project cost for SFP Islanding
4. Safety analysis of SFPI [6,7]
    4.1 Design basis accidents
    4.2 Beyond design basis accidents
5. Conclusion

• Kwang Nam Kim(Korea Environment Testing and Analysis Laboratory, 63-1, Wondoo-ro, Gwangsan-gu, Gwangju, Republic of Korea)
• Sang Hoon Park(Korea Environment Testing and Analysis Laboratory, 63-1, Wondoo-ro, Gwangsan-gu, Gwangju, Republic of Korea)
• Kyong Won Han(Korea Environment Testing and Analysis Laboratory, 63-1, Wondoo-ro, Gwangsan-gu, Gwangju, Republic of Korea)
• Kwan Sik Chun(Korea Environment Testing and Analysis Laboratory, 63-1, Wondoo-ro, Gwangsan-gu, Gwangju, Republic of Korea)