3. Hazard identification

Each stage of risk management is important, because a risk can be underestimated, poorly controlled, or simply forgotten if the hazard causing it has not been identified. Hazards are many and varied, even innumerable, and one of the difficulties lies in considering them. For this purpose, it is particularly useful to draw on pre-established lists that limit oversights. Such lists do exist, but they are often heterogeneous and of a level that is sometimes ill-adapted, leading to omissions.

We propose here a classification into five hazard categories (Figure 3 ), which can more easily be subdivided in turn to cover the hazardous situations that can be encountered, particularly in maintenance.