![]() Narrator: Nuclear power plants operate at these levels for the vast majority of the time, safely and without incident. On screen: (A white ball, labelled Level 2, appears then disappears, revealing a scene of level 2 activities, including workers inside a nuclear plant reviewing information on computers.) Narrator: Level 2 represents the measures and systems in place to control and correct any unusual occurrences during normal operations. On screen: (A white ball, labelled Level 1, appears then disappears, revealing a scene of level 1 activities, including workers observing activities, reviewing plans, and using meters outside.) Level 1 is about prevention, and encompasses the design, construction, processes and maintenance occurring during normal plant operations. Narrator: Defence in depth is a safety concept that aims to prevent and mitigate accidents through 5 independent levels of defence, applied to all nuclear power plants in Canada. They begin to move in an orbital path around the nuclear plant.) The shield disappears and 5 different coloured bubbles animate onto the screen. The shape of a shield overlays the nuclear plant. On screen: (The words “Defence in depth” appear on the screen then disappear to reveal a nuclear plant. Narrator: The Canadian Nuclear Safety Commission is Canada’s nuclear regulator, and safety is our top priority. A green shape swirls around the word “Safety” as the other words fade out.) A text bubble showing workers and the words “Nuclear regulator” appears below the word “Commission”. The Canadian flag pops up above the word “Canadian” in a text bubble. On screen: (The words “Canadian Nuclear Safety Commission” appear. Watch this video to see how defence in depth is applied to nuclear power plants. ![]()
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