CSA C22 2 NO 290-2015 Photovoltaic combiners (First Edition).pdf

1、C22.2 No. 290-15Photovoltaic combinersLegal 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 view

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18、 ServiceC22.2 No. 290-15December 2015Title: Photovoltaic combinersTo register for e-mail notification about any updates to this publication go to shop.csa.ca click on CSA Update ServiceThe List ID that you will need to register for updates to this publication is 2423672.If you require assistance, pl

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20、ithout the prior permission of the publisher.Published in December 2015 by CSA Group A not-for-profit private sector organization 178 Rexdale Boulevard, Toronto, Ontario, Canada M9W 1R3 To purchase standards and related publications, visit our Online Store at shop.csa.caor call toll-free 1-800-463-6

21、727 or 416-747-4044.TMA trade-mar k of the Canadian S tandards Association, operating as “CSA Group”Photovoltaic combinersC22.2 No. 290-15C22.2 No. 290-15 Photovoltaic combinersDecember 2015 2015 CSA Group 1ContentsTechnical Committee on Industrial Products 3Working Group 290 on Photovoltaic Combine

22、rs C22.2 No. 290 5Preface 61 Scope 72 Reference publications 73 Definitions and abbreviations 93.1 Definitions 93.2 Abbreviations 104 Construction 104.1 General 104.2 Disconnecting means 104.3 Enclosures 114.4 Openings in enclosures 124.5 Bases 134.6 Fastening and support of current-carrying parts 1

23、34.7 Bus bars 144.8 Wiring terminals 154.9 Wiring terminal kits 164.10 Combiners rated for high voltage 164.11 Electrical spacings 174.11.1 General 174.11.2 Electrical spacings for equipment rated up to 600 V ac or 848.5 V peak or dc 174.11.3 Electrical spacings for equipment rated above 600 V ac or

24、 848.5 V peak or dc 184.12 Alternate approach to spacings 194.12.1 General 194.12.2 Overvoltage category (OVC) 194.12.3 Surge suppression 194.12.4 Pollution degree (PD) 194.12.5 Instructions 204.13 Wiring space and wire bending space 204.14 Conduit entry clearance requirements 204.15 Separation of c

25、ircuits 214.16 External signal, control, and communication circuits 224.17 Equipment bonding 234.18 Common connection bus bar 234.19 Switching devices 234.20 Conductor identification 245 Marking 246 Tests 28C22.2 No. 290-15 Photovoltaic combinersDecember 2015 2015 CSA Group 26.1 Temperature tests 28

26、6.2 Dielectric strength test 316.3 Heat cycling test for joints in current-carrying parts 326.4 Flammability test 326.5 Moisture absorption test 336.6 Deflection test (metal enclosures) 336.7 Impact test (polymeric enclosures) 336.8 Impulse test 347 Auxiliary equipment for combiner boxes 35Annex A (

27、normative) French translations of cautions, warnings, and safety instructions 44Annex B (informative) Sample nameplates 45C22.2 No. 290-15 Photovoltaic combinersDecember 2015 2015 CSA Group 3Technical Committee on Industrial ProductsR.M. Bartholomew Electric Power Equipment Ltd., Vancouver, British

28、Columbia Category: Producer InterestChairR.P. de Lhorbe Schneider Electric Canada, Inc., Richmond, British Columbia Category: Producer InterestVice-ChairB.M. Baldwin Representing Startco Engineering ULC, Saskatoon, Saskatchewan Category: Producer InterestC.C. Cormier Alberta Municipal Affairs, Edmon

29、ton, Alberta Category: Regulatory AuthorityV.V. Gagachev Eaton, Burlington, Ontario Category: Producer InterestD.R.A. MacLeod Department of Labour and Advanced Education, Halifax, Nova Scotia Category: Regulatory AuthorityN. Mancini Mississauga, Ontario Category: General InterestD. Mascarenhas Bramp

30、ton, Ontario Category: General InterestD.G. Morlidge Fluor Canada Ltd., Calgary, Alberta Category: General InterestT. Olechna Electrical Safety Authority, Mississauga, Ontario Category: Regulatory AuthorityR. Pack SaskPower, Saskatoon, Saskatchewan Category: Regulatory AuthorityC22.2 No. 290-15 Phot

31、ovoltaic combinersDecember 2015 2015 CSA Group 4M. Smith Rockwell Automation Canada Inc., Cambridge, Ontario Category: Producer InterestA.Z. Tsisserev Applied Engineering Solutions Ltd., Vancouver, British Columbia Category: General InterestM. Humphries CSA Group, Toronto, Ontario Project ManagerC22

32、.2 No. 290-15 Photovoltaic combinersDecember 2015 2015 CSA Group5Working Group 290 on Photovoltaic Combiners C22.2 No. 290C. Thwaites Mersen Canada Toronto Inc., Mississauga, ChairL. Cantelo Sherwood Park, Alberta R.H. Doe Power-One, Inc, San Jose, California, USA S.W. Douglas International Associat

33、ion of Electrical Inspectors, Toronto, Ontario J.A. Eichner Schneider Electric, Burnaby, British Columbia V.V. Gagachev Eaton, Burlington, Ontario N. Hanna Electrical Safety Authority, Mississauga, Ontario P. Morton TUV Rheinland Canada, Toronto, Ontario R. Pack SaskPower, Saskatoon, Saskatchewan S.

34、 Poutissou CSA Group, Richmond, British Columbia L. Silecky Mersen Canada, Mississauga, Ontario G. Thompson Toronto Hydro-Electric System, Toronto, Ontario D. Stefancic CSA Group, Toronto, Ontario Project ManagerC22.2 No. 290-15 Photovoltaic combinersDecember 2015 2015 CSA Group 6Preface This is the

35、 first edition of C22.2 No. 290, Photovoltaic combiners, one of a series of Standards issued by CSA Group under Part II of the Canadian Electrical Code.For general information on the Standards of the Canadian Electrical Code, Part II, see the Preface of CAN/CSA-C22.2 No. 0, General Requirements Cana

36、dian Electrical Code, Part II.This Standard is considered suitable for use for conformity assessment within the stated scope of the Standard.This Standard was prepared by the Working Group on Photovoltaic Combiners, under the jurisdiction of the Integrated Committee on Photovoltaics, the Technical C

37、ommittee on Industrial Products, and the Strategic Steering Committee on Requirements for Electrical Safety, and has been formally approved by the Technical Committee.Interpretations: The Strategic Steering Committee on Requirements for Electrical Safety has provided the following direction for the

38、interpretation of standards under its jurisdiction: “The literal text shall be used in judging compliance of products with the safety requirements of this Standard. When the literal text cannot be applied to the product, such as for new materials or construction, and when a relevant CSA committee in

39、terpretation has not already been published, CSA Groups procedures for interpretation shall be followed to determine the intended safety principle.”Notes: 1) Use of the singular does not exclude the plural (and vice versa) when the sense allows.2) Although the intended primary application of this St

40、andard is stated in its Scope, it is important to note that it remains the responsibility of the users of the Standard to judge its suitability for their particular purpose.3) This Standard was developed by consensus, which is defined by CSA Policy governing standardization Code of good practice for

41、 standardization as “substantial agreement. Consensus implies much more than a simple majority, but not necessarily unanimity”. It is consistent with this definition that a member may be included in the Technical Committee list and yet not be in full agreement with all clauses of this Standard.4) To

42、 submit a request for interpretation of this Standard, please send the following information to inquiriescsagroup.org and include “Request for interpretation” in the subject line: a) define the problem, making reference to the specific clause, and, where appropriate, include an illustrative sketch;b

43、) 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 guidelines governing

44、 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. Suggestions for its improvement will be referred to the appropriate committee. To submit a proposal for change, ple

45、ase 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;d) rationale for the change.C22.2 No. 290-15 Photovoltaic combinersDec

46、ember 2015 2015 CSA Group 7C22.2 No. 290-15Photovoltaic combiners1 Scope1.1 This Standard applies to photovoltaic 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 Combiner

47、s 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 I

48、n 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 permi

49、ssible 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.2 Reference publicationsThis Standard refers to the following publications, and where such reference is made,