The analysis is about the incidents declared between 1 December 2004 and 30 November 2005.

Breakdown of incidents on the EDF reactors in 2005 according to area of declaration

The areas concerned by the incidents declared by EDF are safety, radiation protection and the environment. The following graph presents the breakdown into these three areas of the incidents declared by EDF.

The number of radiation protection and environmental incidents declared remained stable from 2003 to 2004. In 2005, the ASN observed a drop in relation to 2004 in the number of environmental incidents declared and a rise in the number of safety-related incidents.

Breakdown of safety incidents which occurred in EDF reactors in 2005, per safety function affected and per reactor state

Safety is provided by three basic safety functions, that is reactivity control, cooling of radioactive materials and containment of radioactive materials. Certain incidents do not directly affect one of the three safety functions, but do affect auxiliary systems such as electrical power supplies. These incidents are represented under the "support" heading.

The following graph shows the breakdown of incidents per safety function affected during the event.