Draft Amendment to C22.1

Draft Amendment to C22.1

Draft Amendment to C22.1

Draft Amendment to C22.1

Draft Amendment to C22.1

1  Scope

1.1  General

This Standard provides criteria, in accordance with the National Building Code of Canada for the structural design and evaluation of structures or structural elements made from wood or wood products, including:

graded lumber,

glued-laminated timber,

cross-laminated timber (CLT),

unsanded plywood,

oriented strand board (OSB),

composite building components,

shearwalls and diaphragms,

timber piling,

pole-type construction,

prefabricated wood I-joists,

structural composite lumber products,

permanent wood foundations,

plank decking,

nail laminated decking, and 

structural connections.

This Standard employs the limit states design method.

1.2  Terminology

In CSA Standards, “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; “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.

Scope

1.1
General

This Standard applies to structural antennas, towers, antenna-supporting structures, and roof- and wall-mounted structures, including their components, such as guys and foundations. It covers the structural design, fabrication, and erection of new structures and the modification of existing structures.

1.2
Exclusions

This Standard is not intended to apply to

a) attachment antennas and arrays or assemblies of such antennas; or
b) towers that support attachment antennas, extending less than 15 m above grade, including the height of any structure on which they are mounted.

1.3
Unusual designs and antennas

This Standard covers the requirements for most structural antennas, antenna towers, and antenna-supporting structures, but it is recognized that structures that are unusual with regard to their height or shape, or with regard to the shape and size of individual members, or that are located on sites having unusual topographical, geological, or climatic conditions might not be adequately covered. In such cases, appropriate engineering principles providing a level of reliability at least equivalent to that provided by this Standard should be applied.

1.4
Dynamic effects of wind

This Standard does not contain mandatory requirements that take into account the dynamic effects of wind.

1.5
Other design approaches

A rational design based on theory, analysis, and engineering practice, acceptable to the owner and regulatory authority, may be used in lieu of the design procedures or materials described in this Standard. In such cases, the design should be prepared by an engineer qualified in the specific method and knowledgeable about the materials to be used, and should provide a level of safety and performance that is not less than that implicit in this Standard.

1.6
Local, provincial, and federal regulations

Responsibility for observing all applicable local, provincial, and federal regulations is not relieved by compliance with this Standard.

1.7
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 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        Scope

1.1

This Standard applies to products and component devices where the electronics technology handles the operational logic including the safety features. This Standard applies to the following configurations:

a)   safety control function(s) implemented in hardware only; and

b)   safety control function(s) implemented in some combinations of hardware and software.

Note: Clauses that are identified by an asterisk define a simplified path for hardware-only designs. For reference these clauses are listed in Table 2.

1.2

The scope of this Standard includes the sensors and actuators that are associated with the safety control.

1.3

The requirements in this Standard apply to products where failure in either the hardware or software, or any associated devices, can lead to a hazard.

1.4

This Standard prescribes minimum requirements for the documentation necessary to evaluate and confirm that the equipment meets the safety requirements as specified in this Standard.

1.5

This Standard applies to a product identified under a relevant product standard and where the purpose of the product, along with its features and operational role, can be described.

Note: An understanding of the specific end-use environment and any risks associated with the product is essential for this Standard to apply.

1.6

This Standard does not cover general-purpose applications or products where the end-application or the safety requirements for the product are not known or cannot be described, such as for a general-purpose programmable logic controller (PLC).

1.7

In CSA Standards, "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 Scope

[Add the following paragraph after the dashed list with the first paragraph]

The requirements for artificially ventilated analyzer houses located in zone 2 explosive atmosphere (an area normally requiring EPL Gc) containing an internal source of release of gas vapour or liquid are outlined separately in Annex CC.

[Add the following paragraphs]

The requirements of the IEC 60079 series of Standards cover protection with respect to explosion hazard only. The CAN/CSA-C22.2 No. 60079 series of Standards (based on the adoption of corresponding IEC Standards) is to be used in conjunction with other applicable Standards containing the appropriate electrical safety requirements for general use equipment.

1 Scope

1.1

This Standard applies to photovoltaic (re)combiners rated up to 2000 V dc or 750 V ac, for use on photovoltaic (PV) systems installed in nonhazardous locations in accordance with the Canadian Electrical Code, Part I.

1.2

(Re)combiners for use in photovoltaic systems that are ungrounded, positive grounded, and/or negative grounded are within the scope of this Standard.

1.3

This Standard does not cover panelboards, switchgear assemblies, and switchboards as covered by CSA C22.2 No. 29, CSA C22.2 No. 31, and CSA C22.2 No. 244.

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.

Draft Amendment to C22.1

Draft Amendment to C22.1

Draft Amendment to C22.1

Draft Amendment to C22.1

Draft Amendment to C22.1

Draft Amendment to C22.1

This Standard specifies requirements for the design, manufacture, construction, modification, operation, inspection, testing, and maintenance of passenger ropeways and passenger conveyors.

1 Scope

[Add the following]

This Standard applies to the safety of such equipment that is designed and constructed for installation

and use in accordance with CSA C22.1, Canadian Electrical Code, Part I.

Scope
1.1

This Standard provides the requirements for the:

(a)  certification of companies engaged in the fusion welding of reinforcing bars  and  the qualification of their personnel and welding procedures;

(b) the design, fabrication, and inspection of welded connections utilizing deformed reinforcing bars;

(c) welding of deformed reinforcing bars either directly to each other or through splice members; and

(d)        welding of deformed reinforcing bars to structural or low-alloy steel members used as anchorages in precast or cast-in-place concrete construction either in the fabricating shop or in the field.

In lieu of meeting requirements of this standard, companies performing welding of reinforcing bars to steel elements may apply testing requirements of CSA W47.1 and have their welding personnel and welding procedures accepted with CSA W47.1.

Note: Some examples of applications that may apply certification of CSA W47.1 are:  welding of deformed bars (anchors) to structural or hardware elements when installing precast panels to buildings, lifting devices, base plates, ladders, catwalks, etc. Whenever the welding of reinforcing rebars is required to reinforce the concrete in applications like concrete, precast, cast in place construction, etc. provisions of CSA Standard W186 apply. Applications required by the following standards require certification to this standard: CSA A448.1, A23.1, A23.3, A23.4, N287.2, N287.3, N287.4, N287.5, S304.1, S6, S474, S850 and Z98.   

1.2  

This Standard does not cover requirements for the:

(a) welding of plates, angles, or other structural members to one another. These types of applications are covered by CSA Standard W59, Welded Steel Construction;

(b) welding of deformed reinforcing bars used for pre-stressing steel or for bar or rod mats for which the welding is covered by the manufacturing specification; and

(c)  welding reinforcing bars with specified yield strength exceeding 550 MPa (80 ksi).

1.3

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.

1.4

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.

1.5

This Standard stipulates requirements for

(a) welding engineers;

(b) welding supervisors;

(c) welders and welding  operators; and

(d) documentation.

1.6

The qualification requirements for 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.

1.7

Provisions for recognition of personnel qualified under other jurisdictions are included in this Standard.

1.8

This Standard includes provisions for the following:

(a) shielded metal arc welding (SMAW);

(b) gas metal arc welding (GMAW);

(c) flux-cored arc welding (FCAW) and metal cored arc welding; and

(d) metal-cored arc welding (MCAW).

1.9 Base metal

1.9.1 General

Steel base metal to be welded under this Standard should conform to the requirements of the CSA or ASTM Standards listed in Clauses 1.9.2 and 1.9.3 or other recognized specifications of equivalent welding quality as determined by the company’s engineer and approved by the engineer. Equivalent welding quality shall be established on the basis of composition and carbon equivalent.

1.9.2 Reinforcing Bars

Reinforcing bars to be fusion welded in accordance with this Standard should conform to one of the following Standards:

(I) CSA:

(a)    G30.16; or

(b)   G30.12; or

(c)   G30.18; or

(d)   other specifications approved by the owner provided mill test reports are supplied and carbon equivalent must not exceed 0.55% when calculated as shown in Clause 1.9.4.

(II) ASTM:

(a) A82/82M;

(b) A496/A496M;

(c) A615/615M;

(d) A706/706M;

(e) A767/A767M zinc-coated (galvanized) reinforcing bars that meet the requirements of A615/A615M or

     A706/A706M;

(f) A775/A775M epoxy-coated reinforcing bars that meet the requirements of A615/A615M or

     A706/A706M; and

(g) A934/A934M epoxy-coated prefabricated reinforcing bars that meet the requirements of A615/A615M

     or A706/A706M.

1.9.3 Structural Steel

Plates, angles, or other shapes for splices of bars and plates, or other structural steel members to which bars are anchored should conform to the steels listed in CSA W59, latest edition.

1.9.4 Carbon equivalent

The carbon equivalent (CE) of reinforcing bars must not exceed 0.55% when calculated with the following formula:

CE=%C + %Mn/6 + %Cu/40 + %Ni/20 + %Cr/10 - %Mo/50 - %V/10

In addition, the ratio of Mn:C (expressed as wt.%) must be 3.0 or greater.

1.9.5 Material test reports

If the material test reports (MTR) are not available, chemical analysis to determine the carbon equivalent (CE) may be made on reinforcing bars similar to the reinforcing bars to be welded. If the chemical composition is not known or cannot be obtained the following procedures should be applied:

(a)  for bars number 20 or less, use a minimum preheat of 150°C (300°F);

(b)  for bars number 25 or larger, use a minimum preheat of 250°C (500°F); and

(c)  for all bar sizes of ASTM A706/A706M minimum preheat must be as described in Table  8 as listed for CE of over 0.45% to 0.55% inclusive.

1.10

This  Standard  does  not address  the  safety issues associated with  welding and welding practices.

Note: CAN/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.

1.11

This Standard does not address underwater welding activities.

1.12

In CSA Standards, “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; “may” is used to express an option or that which is permissible within the limits of the standard; and “can” is used to express possibility or capability. 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.

1.13

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.

1.14 Welding terminology

Most of the welding terms used in this Standard are defined in AWS A3.0M/A3.0. See Annex E for a selected list of definitions derived from that Standard. Annex E also includes definitions of terms used in this Standard that are not covered in AWS A3.0M/A3.0.

1.15 Symbols

Welding symbols shall be as shown in AWS A2.4. Special requirements are fully explained by notes or details. See Figure 18 for symbols developed for incorporation into this Standard.