Construction and Engineering
1.1 Objective
1.1.1 Protection standards for welding, cutting, and allied processes
This Standard provides minimum requirements and recommendations to protect persons who work in an environment affected by welding, cutting, and allied processes from illness and injury and to prevent damage to property arising from the installation, operation, and maintenance of equipment used in these processes.
1.1.2 Elements of a welding health and safety program
This Standard specifies the elements of a welding health and safety program (see Clause 4) that are necessary to implement the requirements and recommendations specified in this Standard.
1.2 Applicability
1.2.1 Standard for personnel in welding, cutting, and allied process environments
This Standard applies to all personnel working in an environment affected by welding, cutting, and allied processes.
1.2.2 Application of standard to welding and allied processes
The requirements of this Standard apply to the processes illustrated in the Master chart of welding and allied processes (see Figures A.1 and A.2).
Note: One should consult the authority having jurisdiction, together with this Standard, to ensure compliance to mandatory legislative requirements.
1.3 Exclusions
This Standard does not apply to
a) the design or manufacture of welding or safety equipment; and
b) storage, use, and handling of natural gas and propane in accordance with CSA B149.1 and CSA B149.2.
1.4 Terminology
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 (nonmandatory) to define their application.
1.5 Units of measurement
The values given in SI units are the units of record for the purposes of this Standard. The values given in parentheses are for information and comparison only.
1.1 Inclusions
This standard addresses
a) the scope of practice for various levels or types of Power Engineer certifications; and
b) the method to classify facilities in relation to the Power Engineering requirements by calculating a facility rating using a standardized unit (kW). This facility rating shall be used to prescribe facility staffing and attendance requirements with respect to levels of Power Engineer certifications (prescriptive-based method).
1.2 Exclusions
This standard does not address
a) technical and physical design requirements of boiler, refrigeration, compressor and steam prime mover equipment;
b) equipment and facility physical infrastructure requirements;
c) boilers used in connection with an open-type hot water heating system having no intervening valves between the boiler and any direct vent, preventing any pressure build up above atmospheric pressure;
d) siting or location of facilities;
e) scopes of work for personnel or professional certifications not related to operations; and
f) installation, maintenance, or repair.
1.3 Terminology
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.
1.4 Units of measure
The values given in SI units are the units of record for the purposes of this Standard. The values given in parentheses are for information and comparison only.
1.1 Inclusions
Cette norme aborde :
a) le champ d’exercice des différents niveaux ou types de certification des ingénieurs en énergie; et
b) la méthode permettant de classer les installations en fonction des exigences en matière d’ingénierie énergétique en calculant une cote d’installation à l’aide d’une unité normalisée (kW). Cette cotation de l’installation doit être utilisée pour prescrire les exigences en matière de dotation en personnel et de présence à l’installation en ce qui concerne les niveaux de certification des ingénieurs en énergie (méthode prescriptive).
1.2 Exclusions
Cette norme n’aborde pas :
a) les exigences techniques et physiques de la conception des chaudières, des équipements de réfrigération, des compresseurs et des appareils moteurs à vapeur;
b) les exigences en matière d’équipement et d’infrastructure physique des installations;
c) les chaudières utilisées dans le cadre d’un système de chauffage à eau chaude de type ouvert ne comportant pas de vannes intermédiaires entre la chaudière et un évent direct, ce qui empêche toute augmentation de la pression au-dessus de la pression atmosphérique;
d) l’implantation ou la localisation des installations;
e) les cahiers des charges pour le personnel ou les certifications professionnelles qui ne sont pas liés à l’exploitation; et
f) l’installation, l’entretien ou la réparation.
1.3 Terminologie
Dans cette norme, le terme « doit » indique une exigence, c.-à-d., une prescription que l’utilisateur est obligé à respecter pour assurer la conformité à la norme; « devrait » indique une recommandation ou ce qu’il est conseillé, mais non obligatoire de faire; et « peut » indique une possibilité ou ce qu’il est permis de faire.
Les notes qui accompagnent les articles ne comprennent pas de prescriptions ni de recommandations. Elles servent à séparer du texte les explications ou les renseignements qui ne font pas proprement partie de la norme.
Les notes au bas des figures et des tableaux font partie de ceux-ci et peuvent être rédigées comme des prescriptions.
Les annexes sont qualifiées de normatives (obligatoires) ou d’informatives (facultatives) pour en préciser l’application.
1.4 Unités de mesure
Les valeurs indiquées en unités SI sont les unités d’enregistrement aux fins de la présente norme. Les valeurs indiquées entre parenthèses ne sont données qu’à titre d’information et de comparaison.
1.1 Purpose
The purpose of this Standard is to minimize the risk of personal injury by providing minimum requirements for the design, construction, installation, inspection, and maintenance of the mechanical refrigeration systems and volatile direct refrigeration systems specified in Clauses 1.2.1 and 1.2.2.
Note: This Standard does not directly address protection of property and preservation of the environment.
1.2 Application
1.2.1
Except as specified in Clause 1.2.3, this Standard applies to the design, construction, installation, inspection, and maintenance of every refrigeration system as provided for by the “Act” (as defined in Clause 3) and identified in this Standard.
1.2.2
This Standard applies to
all refrigeration systems installed subsequent to its adoption. This includes refrigeration systems installed in a new or existing premises. It also applies to all premises, including the machinery room if required, in which a refrigeration system is to be installed;
refrigeration systems that undergo a substitution of refrigerant in a premises defined in Item a); and
those parts of a refrigeration system that are replaced in, or added to, systems installed prior to its adoption.
Note: When adding or replacing parts [see Item c)], consideration should be given to the premises requirements of Item a).
1.2.3
This Standard does not apply to the following:
the use of water or air as a refrigerant;
bulk-storage gas tanks not permanently connected to a refrigeration system; and
refrigeration systems installed on railroad cars, motor vehicles, motor-drawn vehicles, aircraft, or ships.
1.3 Terminology
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.
1.4 Units of measurement
The values given in SI units are the units of record for the purposes of this Standard. The values given in parentheses are for information and comparison only. A list of conversion factors is provided in Annex D.
Pressure, unless otherwise stated, is expressed in kilopascals above atmospheric pressure, i.e., gauge pressure.
1.1
This Standard provides the requirements for the certification of companies engaged in the fusion welding of steel and the qualification of their personnel and welding procedures.
Note: This Standard is not intended for applications governed by codes such as the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code and codes of the American Petroleum Institute (API).
1.2
The requirements of this Standard are based on the principle that a certified company has full responsibility for the quality of the welded product it produces and this responsibility cannot be transferred to its employed or retained personnel, or to the administrator of this Standard.
1.3
This Standard governs the certification of companies. Certification pertains to the capability of the company with respect to welding. Certification should not be construed as approving any products or services of the certified company.
1.4
This Standard stipulates requirements for
a) welding engineers;
b) welding supervisors;
c) tack welders, welders, and welding operators; and
d) documentation.
1.5
The qualification requirements for tack welders, welders, and welding operators specified in this Standard are intended to demonstrate an individual’s basic welding skills and to provide a means of verifying that individual’s continuing ability in the fusion welding of steel.
1.6
Provisions for recognition of personnel qualified under other jurisdictions are included in this Standard.
1.7
For welding of stainless steel, Annex K of this Standard specifies provisions for the qualification of welding procedures and personnel.
1.8
This Standard does not address the safety issues associated with welding and welding practices.
Note: CSA W117.2 addresses safety in welding and should be followed, in addition to any applicable workplace health and safety legislation in effect. It is the responsibility of the user of this Standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
1.9
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.
1.10
The values given in SI units are the units of record for the purposes of this Standard. The values given in parentheses are for information and comparison only.