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363
K2
K1
K3
K3
K3
K1
K1
K3
K2
K1
K3
K2
K1
K3
K3
K3
K1
K1
K3
K2
K1
K3
DB300844
New
Spacial S3D
Seismic and nuclear enclosures
Ademandingnuclearmarket
Nuclear safety has 3 objectives
Technical choices and safety rules
The technical choices and safety rules are stipulated by the operator with full
responsibility relative to the French nuclear safety authority (ASN) (representing
the state) depending on the location in the installation and whether or not they form
part of the safety circuits. The products undergo tests to ensure their operation
in accidental conditions.
Certifications necessary to work in the
nuclear industry
2 certifications are necessary to work in the nuclear industry
1• Product and equipment certifications imply demanding performances validated
by technical documents and by tests. In the event of a change in the product,
it must be
explained and justified
that the initial certification is maintained.
2• Certifications of industrial organizations and services related to products
and equipment.
The products equipping French nuclear facilities in this catalogue comply with
the RCC-E 2012 standard.
Terminology of equipment classifications
used in nuclear power stations
Tests corresponding to specific
classifications for EIP equipment
b
b
K3 > ref. tests + functional operating limits + ageing + earthquake
b
b
K3AD > K3 + environmental resistance (irradiation, heat, spraying)
b
b
K2 > K3 + resistance to ageing irradiation (250 Kgy)
b
b
K1 > K2 + resistance to accidental irradiation (600 Kgy) + ADR
b
b
AG > K1 reinforced only for EPR power stations
Control
reactivity
Cool
the fuel
Confine
radioactive
products
A safety circuit consists of several equipment items.
Their certification depends on their location.
Equipment interfacing between the core and the other
buildings is always K1 (risk of radioactive leakage).
EIP: Equipment Important for Protection.
IPDE: Important for operating availability.
CDS: safety-classified.
Schneider is concerned only by E1 (elec. classification).
Nuclear island.
Conventional island.
NC: non-classified.
Equipment
IEC certified
IPDE
EIP NC
EIP CDS
Non EIP
Non IPDE
EIP
E1 or E2
Non-certified IEC certified
K3
K3AD
K2
K1
AG
Non-certified Non-certified