380 / 386
GLOSSARIES
1. Technical glossary
> Regulated nuclear facilities (
installation nucléaire de base,
INB)
In France, an
installation nucléaire de base
(INB) is a regulated nuclear facility
which by its nature or by the quantity or activity of any radioactive substances it
contains, within the meaning of the INB nomenclature, is subject to the French
Nuclear Safety and Transparency Law of June 13, 2006 and to its implementing
regulations. Monitoring of regulated nuclear facilities is carried out by the inspectors
of the Autorité de sûreté nucléaire (French nuclear safety authority ASN). By way of
example, a nuclear reactor, an enrichment plant, a fuel fabrication plant and a used
fuel treatment plant are all regulated nuclear facilities.
> Renewable Energy
Energy produced from renewable, non-fossil sources that can be replaced within
a human generation.
> RepU
Recycled uranium from used fuel treatment.
> Reserves / Resources
Reserves consist of ore inventories known with certainty that can be feasibly mined
in the short term at a competitive economic cost. Resources consist of reserves
and of ore inventories whose existence is only assumed or estimated with a certain
probability, and that are potentially mineable over the medium to long term.
> Residual power
Power released by the radioactivity of the nuclear fuel and other materials in a
nuclear reactor that is shut down or in a used fuel assembly.
> Rod cluster control assembly (see control rod)
Equipment containing the neutron-absorbing elements used to control the fission
chain reaction in a nuclear reactor. The chain reaction can be slowed or stopped
by introducing the rod cluster control assembly into the fuel core.
> Rotor
Component of a wind turbine consisting of several blades (usually three) attached
to a central hub, which are themselves attached to the nacelle.
The wind turns the rotor, producing mechanical energy which is then converted
into electrical energy by the generator.
> Rotor blades
Wind turbine rotor blades capture kinetic energy from the wind and convert it into
mechanical energy in the form of aerodynamic lift.
As they are assembled as a rotor by means of a central hub, this linear thrust can
be converted into more easily exploitable torque load.
> Safety analysis report
Report describing the design of regulated nuclear facilities and the measures taken
to ensure safety. It identifies the risks presented by the facility and describes the
measures taken to prevent them as well as measures conducive to reducing the
probability of accidents and their effects.
> Safety review
The safety review of a facility is used to assess the facility’s status in terms of the
rules applicable to it and to update the assessment of the risks and drawbacks that
the facility may present, taking into account in particular the condition of the facility,
the experience acquired from operations, the accumulation of knowledge, and the
rules applicable to similar facilities.
> Safety system
A set of documents presentingmeasures taken to ensure the safety of a facility. The
safety analysis report is one such document. In particular, it includes:
p
a license decree (in France, if the facility was created or modified after 1963)
and the license application file;
p
requirements decreed by the French nuclear safety authority (ASN);
p
a Safety Analysis Report (SAR) and general operating rules (
règles générales
d’exploitation, RGE
), or general monitoring and servicing rules (
règles générales
de surveillance et d’entretien,
RGSE);
p
a waste management study for the facility stating the goals for minimizing waste
volume and toxicity;
p
an Internal Emergency Management Plan (
plan d’urgence interne
, PUI), which
may include sections that are common to the entire nuclear site in which the
facility is located.
> SEA sites (sites with significant environmental aspects)
In AREVA’s frame of reference, nuclear sites, sites with facilities representing
major manmade risk per Seveso regulations, operating mine sites, plant sites
with facilities subject to public inquiry, and industrial or office building sites which
make a significant contribution to the group’s environmental accounting in terms
of consumption, releases or hazards.
> Shielding, biological shielding, biological protection
Protective shielding from radiation used to limit exposure of people.
> Shipping cask
Name for a container used to ship radioactive materials.
> Specific burnup
See
burnup.
> Specific response plan (
Plan particulier d’intervention
, PPI)
Describes the emergency response organization set up by government agencies in
the event of an accident in a nuclear facility with potential off-site consequences. The
mobilization and coordination of necessary resources, tailored to the circumstances,
are placed under the authority of the Prefect.
> Stator
Static component of an electric motor (such as a reactor coolant pump set) or an
alternator.
> Steam generator
Heat exchanger in a pressurized water reactor (PWR) that transfers the heat from the
water in the primary cooling system to the secondary system, where it is converted
into steam that drives a turbine connected to an alternator to generate electricity.
380
2016 AREVA
REFERENCE DOCUMENT