Abstract
The Japan Atomic Power Company (JAPC) has been applied safety measures to Tokai-2, Tsuruga-1 and Tsuruga-2. in the past. JAPC will continuously apply effective and reliable safety measures against severe accident, to evaluate lessons based on many information and lesson from not only Fukushima Daiich Nuclear Power Plant accident but also Tokai-2 experience. In this paper, safety measures which have been applied and will be applied are described.