1. Glycol serves as a secondary cooling system and its back to glycol container. 2. With the reactor again at full power, flow in the secondary cooling system was stopped. 3. The leak occurred in the plant's secondary cooling system , so the sodium was not radioactive. 4. An estimated two to three tons escaped when a secondary cooling system , far from the reactor's core, ruptured. 5. No one was injured in that accident, a sodium leak in a secondary cooling system , and no radioactivity escaped. 6. Meanwhile, Monju's operators continued to drain 270 tons of radioactive liquid sodium from the primary and secondary cooling systems . 7. No one was injured in that accident, a sodium leak in a secondary cooling system , and no radioactivity leaked out. 8. The plutonium breeder reactor in western Japan spewed caustic sodium from a secondary cooling system on Dec . 8, 1995. 9. The accident occurred Dec . 8 in the secondary cooling system , not the primary one, which would have been highly dangerous. 10. On 3 December 1977 " The Times " reported that seawater had entered the reactor through a modification of the secondary cooling system .
