Energy

1.1

This Standard provides requirements for the materials used for concrete containment structures, which include, but are not limited to, the following structural and non-structural elements:

a) concrete;

b) reinforcement (pre-stressed and non-pre-stressed);

c) steel (e.g., liner, embedded parts, anchors);

d) non-metallic liners and coating systems,

e) joint sealants and waterstops ;and

f) elements necessary to support the containment structure (e.g. foundations).

Note: For material requirements for safety-related structures, refer to CSA N291.

1.2

This Standard is applicable to existing and new nuclear power plants. It is not the intent that the requirements of this Standard be applied retroactively to existing nuclear power plants, unless as agreed to by the AHJ.

1.3

This Standard is used in concert with the other N287 Series of Standards as applicable.

1.4

In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the Standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

1.5

In this Standard, “shall be considered” or “shall consider” means that the user evaluates the impact and documents any decisions.

Note: Examples can include no action, operating procedures, or design features.

1,1

Cette norme stipule des exigences relatives aux matériaux utilisés pour les enceintes de confinement en béton, qui visent de manière non limitative les éléments structuraux et non structuraux suivants :

a) béton;

b) armatures (précontraintes et non précontraintes);

c) acier (p. ex., membrane protectrice, pièces encastrées, ancrages);

d) systèmes de membrane protectrice non métallique et de revêtement;

e) garnitures de joint et arrêts d’eau; et

f) éléments nécessaires au soutien d’une enceinte de confinement (p. ex., fondations).

Note : Pour les exigences relatives aux matériaux utilisés pour les ouvrages liés à la sûreté, se reporter à CSA N291.

1,2

Cette norme s’applique à des centrales nucléaires existantes et nouvelles. Ce n’est pas le but des exigences de cette norme de s’appliquer rétroactivement à des centrales nucléaires existantes, à moins que l’AC en convienne.

1,3

 La présente norme est utilisée conjointement avec les autres normes de la série N287, le cas échéant.

1,4

Dans la présente norme, le terme « doit » indique une exigence, c.-à-d. une prescription que l’utilisateur est obligé de respecter pour assurer la conformité à la présente norme; « devrait » indique une recommandation ou ce qu’il est conseillé, mais non obligatoire; et « peut » indique une option ou ce qui est permis compte tenu des limites de la présente norme.

Les notes qui accompagnent les articles ne comprennent pas d’exigences ni d’exigences alternatives; le but d’une note accompagnant un article est de séparer du texte les éléments explicatifs ou informatifs.

Les notes au bas des tableaux et des figures font partie du tableau ou de la figure et peuvent être rédigées comme des exigences.

Les annexes sont qualifiées de normatives (obligatoires) ou d’informatives (facultatives) pour en préciser l’application.

1,5

Dans cette norme, le terme « doit être considéré » ou « doit considérer » signifie que l’utilisateur évalue les conséquences de toute décision et les documente.

Note : Des exemples pourraient notamment être « ne rien faire », des procédures d’exploitation ou des caractéristiques de conception.

CSA Scope:

[Replace first paragraph with the following]

This document provides the requirements and test methods for the safety performance of high pressure gas valves that are used in gaseous hydrogen stations of up to the H70 designation and at flow capacities up to and including 300 g/s.

[Add the following note]

NOTE  For North American application, all references to rated pressure are considered to be equivalent to maximum allowable working pressure (MAWP).

ISO Scope:

This document provides the requirements and test methods for the safety performance of high pressure gas valves that are used in gaseous hydrogen stations of up to the H70 designation.

This document covers the following gas valves:
— check valve;
— excess flow valve;
— flow control valve;
— hose breakaway device;
— manual valve;
— pressure safety valve;
— shut-off valve.

ANSI/CAN/CSA ISO 12617:16 (R2021) has been posted for ANSI BSR-8 (ANSI Public Review) on the ANSI Standards Action Website. For further information please visit: https://www.ansi.org/resource-center/standards-action.

1.1 Code scope

This Code covers the protection from lightning of

a) recreational, residential, institutional, medical, agricultural, industrial, commercial, military, and telecommunications buildings and structures;

b) tall, slender structures such as smokestacks, silos, tanks, towers, masts, and poles;

c) immobile property such as equipment, tents, fences, trees, and solar arrays; and

d) high-risk structures with dangerous contents such as explosives and flammable goods.

1.2 Electrical equipment protection limitation

This Code covers the protection from lightning of structures housing electrical generation, transmission, and distribution systems, as well as structures housing communication systems, but not the equipment or installation requirements for such systems.

1.3 Exclusions and limitations

This Code does not cover installation requirements for early streamer emission systems or charge dissipation/charge transfer systems. No recognized standards body or testing agency exists for Canadian installations of these devices.

1.4 Non-mandatory sections

This Code also contains non-mandatory sections devoted to the nature of lightning and the general principles upon which lightning protection is based, so that the user of the Code will be able to assess the need for lightning protection in the case of any given structure (see Annexes A through D).

1.5 Terminology and application of terms

In this Code, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Code; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the Code.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

1.6 Units of record

The values given in SI units are the units of record for the purposes of this Code. The values given in parentheses are for information and comparison only.

CSA/ANSI HGV 4.4:21 has been posted for ANSI BSR-8 (ANSI Public Review) on the ANSI Standards Action Website. For further information please visit: https://www.ansi.org/resource-center/standards-action.

ANSI/CSA AMERICA FC 3-2004 (R2021) has been posted for ANSI BSR-8 (ANSI Public Review) on the ANSI Standards Action Website. For further information please visit: https://www.ansi.org/resource-center/standards-action.

ANSI Z21.5.2-2016 (R2021)/CSA 7.2-2016 (R2021) has been posted for ANSI BSR-8 (ANSI Public Review) on the ANSI Standards Action Website. For further information please visit: https://www.ansi.org/resource-center/standards-action.