ASME vs RCC-M General Organisation 6.35 The
diagram below shows the correspondence between the sections of the RCC-M Code and the ASME III, Boiler and Pressure Vessel Code (BPVC).
RCC-M Code
ASME Code
Section 1
Nuclear Island Components
Section III
A
General Requirements
NCA
B
Class 1 Components
NB
C
Class 2 Components
NC
D
Class 3 Components
ND
E
Small Components
None
G
Core Support Structures
NG
H
Supports
NF
J
Storage Tanks
NC/ND 3800-3900
P
Containment Penetrations
NE
Z
Technical Appendices
Appendices
Section 2
Materials
Section II
Section 3
Examination Methods
Section V
Section 4
Welding
Section IX (Qualifications)
Section 5
Fabrication
Various parts of section III
Table showing comparison of RCC-M and ASME structures
EN Codes 6.36 EN
standards will be specified for most of the items of pressurised equipment on EPR stations. These may include some nuclear Class 3 items plus all the non-safety classified plant and equipment. For pressurised equipment and their supports, the main EN manufacture and construction standards are EN 13445 for Vessels; EN 13480 for Piping and EN 1990 for Support Structures.
6.37 In
general, the Pressure Equipment Directive will apply directly to the nonnuclear safety classified components. Where the Directive does not apply directly to nuclear safety Class 3 components, additional requirements will be specified. These will probably invoke the conformity assessment requirements of the Directive, as implemented in France.
6.38 EN
35
standards are referenced by the RCC codes for many aspects of design, equipment and construction. This includes welding, inspection, applies to some material specifications. However, the RCC codes frequently impose additional requirements to that of the EN Standards, and these should be specified by the Tier 1 contractors in their enquiries to their subcontractors.