CSA C22 2 NO 273-2014 Cablebus (First Edition).pdf

1、C22.2 No. 273-14CablebusLegal Notice for StandardsCanadian Standards Association (operating as “CSA Group”) develops standards through a consensus standards development process approved by the Standards Council of Canada. This process brings together volunteers representing varied viewpoints and int

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21、 trade-mar k of the Canadian S tandards Association, operating as “CSA Group”CablebusC22.2 No. 273-14C22.2 No. 273-14 CablebusFebruary 2014 2014 CSA Group 1ContentsTechnical Committee on Wiring Products 3Subcommittee on Cablebus 5Preface 61 Scope 72 Reference publications 73 Definitions 93.1 Definit

22、ions 93.2 Abbreviations and symbols 104 Design and construction 104.1 General ratings 104.2 Voltage rating 104.3 Enclosure material 114.4 Enclosure 114.5 Finishes 124.6 Fittings 144.7 Fasteners and cable supports 144.7.5 Cable supports 154.8 Quality of work 164.9 Load capacity 164.10 Bonding 174.11

23、Phase conductor types, lugs, and terminations 184.12 Allowable ampacity ratings 184.12.1 General 184.12.2 Canadian Electrical Code, Part I method 194.12.3 Temperature rise method 204.13 Conductor phase arrangement 204.14 Short circuit current rating 204.15 Voltage drop 205 Marking 205.1 General 205.

24、2 Nameplates (marking on product) 215.2.1 General 215.3 Installation instructions 236 Type tests 236.1 Loading tests 236.1.1 General 236.1.2 Test specimen 236.1.3 Type and length of span 246.1.4 Orientation of specimen 24C22.2 No. 273-14 CablebusFebruary 2014 2014 CSA Group 26.1.5 Supports 246.1.6 L

25、oading material 246.1.7 Load application 246.1.8 Loading to destruction (Method A) 256.1.9 Interpolation of test data (for Clause 6.1.8 (Method A) only) 256.2 Verification of temperature-rise limits 256.2.1 Arrangement of the conductor trunking system 256.2.2 Temperature rise limits (stabilization m

26、ethod) 266.3 Bonding test 276.3.1 Electrical continuity of connections 276.3.2 Electrical continuity of enclosure used as a bond conductor 276.4 Resistance to impact Covers 276.5 Verification of short circuit current rating 286.5.1 Short circuit withstand strength test at rated voltage 286.5.2 Short

27、 circuit withstand strength test at reduced voltage 326.5.3 Enclosure joint short time fault current test 356.6 Gasket test 356.6.1 General 356.7 Vertical installation cable slippage test 366.8 Class A testing requirements 366.8.1 Loading test for the cablebus cover 366.8.2 Impact test 366.8.3 Probe

28、 test 376.8.4 Tamper-resistant test 376.9 Cable movement test for non-insulated blocks, supports and clamps 376.10 Effect of solar radiation 37Annex A (informative) Markings French translations 54Annex B (Informative) Recommended test guidelines for cables in cablebus 55Annex C (Informative) Sample

29、cablebus nameplate 59Annex D (Informative) Sample voltage drop calculation (See Clause 4.15) 60C22.2 No. 273-14 CablebusFebruary 2014 2014 CSA Group 3Technical Committee on Wiring ProductsK.L. Rodel Hubbell Canada LP, Pickering, OntarioRepresenting Producer InterestChairP. Desilets Leviton Manufactu

30、ring of Canada Limited, Pointe-Claire, QubecRepresenting Producer InterestVice-ChairW.J. Bryans Electro-Federation Canada, Toronto, OntarioAssociateW.J. Burr Burr and Associates, Campbell River, British ColumbiaAssociateC. Davis Electro Cables Incorporated, Trenton, OntarioRepresenting Producer Inte

31、restS.W. Douglas International Association of Electrical Inspectors, Toronto, OntarioRepresenting General InterestD. Drysdale Nexans Canada Inc, Milton, OntarioRepresenting Producer InterestS.P. Hawkins Shawflex A Division of ShawCor Ltd., Toronto, OntarioAssociateR.J. Kelly Government of Nunavut-De

32、pt of Community b) provide an explanation of circumstances surrounding the actual field condition; andc) where possible, phrase the request in such a way that a specific “yes” or “no” answer will address the issue.Committee interpretations are processed in accordance with the CSA Directives and guid

33、elines governing standardization and are available on the Current Standards Activities page at standardsactivities.csa.ca.5) This Standard is subject to review five years from the date of publication, and suggestions for its improvement will be referred to the appropriate committee. To submit a prop

34、osal for change, please send the following information to inquiriescsagroup.org and include “Proposal for change” in the subject line:a) Standard designation (number);b) relevant clause, table, and/or figure number;c) wording of the proposed change; andd) rationale for the change.Committee interpret

35、ations are processed in accordance with the CSA Directives and guidelines governing standardization and are published in CSAs periodical Info Update, which is available on the CSA Web site at www.csa.ca.C22.2 No. 273-14 CablebusFebruary 2014 2014 CSA Group 7C22.2 No. 273-14Cablebus1 Scope1.1 This St

36、andard applies to a complete cablebus system (termination to termination) and associated fittings rated at not more than 46 kV and intended for use in accordance with the Canadian Electrical Code, Part I and General Requirements Canadian Electrical Code, Part II, CSA C22.2 No. 0. These requirements

37、do not apply to metal enclosed busways, as covered by CSA C22.2 No. 201 and CSA C22.2 No. 27.1.2 For the purpose of these requirements, a cablebus is an assembly of insulated cable conductors designed as a system to transmit large magnitudes of electrical current and to withstand the effects of spec

38、ified system requirements (i.e. short circuit current, circuit loading, bonding etc) with fittings and conductor terminations in a completely enclosed, ventilated, or non-ventilated protective metal housing.1.3 The values given in SI (metric) units are mandatory. Any other values given are for infor

39、mation only.Note: Lengths are shown in millimetres or metres (inches or feet). Widths, deflections, and similar measurements are generally defined in millimetres (fractions of inches), and load-bearing capacity in kilograms/metre (pounds/ foot).1.4 In this Standard, “shall” is used to express a requ

40、irement, 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 ac

41、companying 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

42、are designated normative (mandatory) or informative (nonmandatory) to define their application.2 Reference publicationsWhere reference is made to other publications, such reference shall be considered to refer to the latest edition and all amendments published to that edition up to the time when thi

43、s Standard was approved.C22.2 No. 273-14 CablebusFebruary 2014 2014 CSA Group 8CSA GroupC22.1-12Canadian Electrical Code, Part I CE Code, Part IC22.2 No. 0-10General RequirementsCanadian Electrical Code, Part II;C22.2 No. 0.15-01 (R2012)Adhesive labelsC22.2 No. 5-13Molded-case circuit breakers, mold

44、ed-case switches and circuit-breaker enclosuresC22.2 No. 27-09 (R2013)BuswaysC22.2 No. 94-M91 (R2011)Special purpose enclosuresCAN/CSA-C22.2 No. 94.2-07 (R2012)Enclosures for electrical equipment, environmental considerationsC22.2 No. 126.1-09Metal cable tray systemsC22.2 No. 201-M1984 (R2009)Metal-

45、enclosed high voltage buswaysC68.5-13Shielded and concentric neutral power cable for distribution utilitiesC68.10-08 (R2013)Shielded power cable for commercial and industrial applications, 5-46 kVASTM International (American Society for Testing and Materials)A123/A123M-12Standard Specification for Z

46、inc (Hot-Dip Galvanized) Coatings on Iron and Steel ProductsA653/A653M-11Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip ProcessB633-13Standard Specification for Electrodeposited Coatings of Zinc on Iron and SteelD570-98(2010)e

47、1Standard Test Method for Water Absorption of PlasticsC22.2 No. 273-14 CablebusFebruary 2014 2014 CSA Group 9G151-10Standard Practice for Exposing Nonmetallic Materials in Accelerated Test Devices that Use Laboratory Light SourcesIEEE (Institute of Electrical and Electronics Engineers)C37.24-2003IEE

48、E Guide for Evaluating the Effect of Solar Radiation on Outdoor Metal-Enclosed SwitchgearC57.12.28-2005IEEE Standard for Pad Mounted Equipment Enclosure Integrity141-1993IEEE Recommended Practice for Electric Power Distribution for Industrial Plants835-1994IEEE Standard Power Cable Ampacity TablesIC

49、EA (Insulated Cable Engineers Association)P-46-426-1962Power Cable Ampacities3 Definitions3.1 DefinitionsThe following definitions shall apply in this Standard:Note: See also Figure 1.Accessory a component used to supplement the function of a straight section or fitting. Examples include, but are not limited to, dropout, cover, conduit adapter, hold-down device, and divider.Cable support a transverse member within the enclosure intended to support and secure the insulated conductors.Cablebus fitting a component that is used to change the