Nuclear safety is based on multiple layers of protection, a concept called ‘defence in depth’. This means that safety should never rely on just one system but on a multi-layered approach. If one layer fails, others are in place to prevent an incident or limit its consequences.
These layers include:
- physical barriers, such as strong containment buildings
- backup systems, in case one fails
- strict procedures for workers to follow
- emergency plans to handle incidents and accidents.
Safety isn’t just about technology, it’s also about people. This includes:
- trained and skilled staff
- a strong safety culture at every level
- ongoing research to improve safety standards.