1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences ForUL 61730-2Photovoltaic (PV) Module Safety Qualification Part 2: Requirements for TestingUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITH
2、OUT PERMISSION FROM ULNational Differences ForUL 61730-2Photovoltaic (PV) Module Safety Qualification Part 2: Requirements for TestingFirst EditionEdition Date: DECEMBER 4, 2017UL 61730-2 is an adoption of IEC 61730-1, Photovoltaic (PV) Module Safety Qualification Part 2:Requirements for Testing (Se
3、cond Edition, issued by the IEC August 2016). Please note that theNational Difference document incorporates all of the U.S. national differences for UL 61730-2.This document provides a single listing of the National Differences included in the UL adoption ofthe corresponding IEC standard.All rights
4、reserved. No part of this publication may be reproduced, stored in a retrieval system, ortransmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwisewithout prior permission of UL.UL provides this standards document as is without warranty of any kind, either exp
5、ressed or implied,including but not limited to, the implied warranties of merchantability or fitness for any purpose.In no event will UL be liable for any special, incidental, consequential, indirect or similar damages,including loss of profits, lost savings, loss of data, or any other damages arisi
6、ng out of the use of or theinability to use this standards document, even if UL or an authorized UL representative has been advisedof the possibility of such damage. In no event shall ULs liability for any damage ever exceed the pricepaid for this standards document, regardless of the form of the cl
7、aim.Users of the electronic versions of ULs Standards for Safety agree to defend, indemnify, and hold ULharmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonableattorneys fees) resulting from any error or deviation introduced while purchaser is storing
8、an electronicStandard on the purchasers computer system.Copyright 2017 Underwriters Laboratories Inc.DECEMBER 4, 2017NATIONAL DIFFERENCES FOR UL 61730-22UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULPrefaceThis document provides a single lis
9、ting of the technical National Differences included in the UL adoptionof the corresponding IEC standard.In its IEC-based standards, UL uses the notations indicated below to identify national difference type, andthese types are additionally noted in this document. The standard may not use all types o
10、f thesedeviations.D1 - These are deviations which are based on basic safety principles and requirements, elimination ofwhich would compromise safety for U.S. consumers and users of products.D2 - These are deviations based on safety practices. These are deviations for IEC requirements that maybe acce
11、ptable, but adopting the IEC requirements would require considerable retesting or redesign on themanufacturers part.DC - These are deviations based on the component standards and will not be deleted until a particularcomponent standard is harmonized with the IEC component standard.DE - These are dev
12、iations based on editorial comments or corrections.DR - These are deviations based on the national regulatory requirements.Each national difference contains a description of what the national difference entails. Typically one of thefollowing words is used to explain how the text of the national diff
13、erence is to be applied to the base IECtext:Addition / Add - An addition entails adding a complete new numbered clause, subclause, table, figure,or annex. Addition is not meant to include adding select words to the base IEC text.Deletion / Delete - A deletion entails complete deletion of an entire n
14、umbered clause, subclause, table,figure, or annex without any replacement text.Modification / Modify - A modification is an altering of the existing base IEC text such as the addition,replacement or deletion of certain words or the replacement of an entire clause, subclause, table, figure,or annex o
15、f the base IEC text.DECEMBER 4, 2017 NATIONAL DIFFERENCES FOR UL 61730-2 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences2DV DR Addition of the following:UL 790,Standard Test Methods for Fire Tests of Roof CoveringsUL 2703
16、,Mounting Systems, Mounting Devices, Clamping/Retention Devices, and Ground Lugs forUse with Flat-Plate Photovoltaic Modules and PanelsANSI/NFPA 70,National Electrical CodeTable 2DV D2 Modification of Table 2:Delete the line for MST 04.Table 4DV DR Modification of Table 4:Delete the line for MST 24.
17、Table 6DV D2 Modification of Table 6:Delete the line for MST 04 and also delete the line for MST 24.Figure 1DV D2 Modification of Figure 1:Delete the box for MST 04 and also delete the box for MST 24.10.5DV D2 Deletion:Delete Clause 10.5.10.9.1DV DR Modification by replacing Clause 10.9.1 with the f
18、ollowing:To determine if PV modules are constructed to provide adequate protection againstaccessibility to hazardous live parts ( 30 V).10.17DV DR Modification by replacing Clause 10.17 with the following new Fire test MST23:10.17DV.1 IntroductionA photovoltaic module or panel intended to be mounted
19、 or installed on a roof shall beevaluated for fire performance in accordance with 10.17DV.2 or 10.17DV.3, whicheverapplies. System Fire Class Ratings A, B, or C are only relevant for PV modules or panelsDECEMBER 4, 2017NATIONAL DIFFERENCES FOR UL 61730-24UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FU
20、RTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULwith mounting systems in combination with a fire rated roof covering. Mounting systemsevaluated in accordance with 10.17DV.3 may be tested with specific “types” of modules ascharacterized in accordance with 10.17DV.4.10.17DV.2 Building-Inte
21、grated PV ModulesModules or panels intended for installation integral with or forming a part of the buildingsroof structure are referred to as building-integrated photovoltaics (BIPVs) and shall beevaluated in accordance with UL 790, as a Class A, B, or C roof covering material or roofcovering syste
22、m.10.17DV.3 Building-attached photovoltaic moduleModules that are building-attached PV not building-integrated and are intended forstand-off or rack mounting in combination with a roof covering shall be evaluated inaccordance with the tests described in UL 2703, Fire Tests with respect to the firepe
23、rformance requirements for Class A, B, or C when the module is marked as being firerated as specified in UL 61730-1, Clause 5.2.2.1. The module with its mounting system is tobe evaluated for Class A, B, or C so that the appropriate System Fire Class Rating can beused for building code compliance pur
24、poses.10.17DV.4 Fire Type Testing10.17DV.4.1 A module intended for mounting on a roof may be represented by type inaccordance with the procedure given below, using the test method provided in Annex DVBof this document. This is done to simplify the evaluation of module types, roof-mountingconfigurati
25、ons, and mounting systems. The use of fire typing as given in this section isoptional.10.17DV.4.2 A module intended for mounting on a roof (but not BIPVs) can be classifiedaccording to type based on its construction and the results of the fire tests detailed inAnnex DVB, Spread of Flame on Top Surfa
26、ce (Section DVB.1) and Burning Brand on TopSurface (Section DVB.2). Module construction types shall be evaluated based on thefollowing characteristics of PV module and construction: (1) the superstrate material; (2)the encapsulant material; (3) the substrate material; and, (4) the frame type and geo
27、metry(if any). The following types are representative of common module constructions and theirassociated fire characteristics:10.17DV.4.3 A Type 1, 4, or 7 module meets the following requirements:a) Construction: Glass superstrate of 3,6 0,76 mm (0,14 0,03 in); a polymericencapsulant between the sup
28、erstrate and cells with a pre-lamination thickness of0,45 0,2 mm (0,018 0,008 in); either a polymeric encapsulant between the cellsand substrate with a pre-lamination thickness of 0,45 0,2 mm (0,018 0,008 in)and a polymeric substrate with nominal thickness no less than 0,30 mm (0,012 in)and no more
29、than 0,64 mm (0,025 in) thickness or a combined substrate andencapsulant that meets the pre-lamination total thickness equal to an encapsulantthickness of 0,45 0,2 mm (0,018 0,008 in) and a polymeric substrate withnominal thickness no less than 0,30 mm (0,012 in) and no more than 0,64 mmthickness (0
30、,025 in); and metallic framing protecting the edge of the laminate.DECEMBER 4, 2017 NATIONAL DIFFERENCES FOR UL 61730-2 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULb) Spread of Flame Test on Top Surface: The test shall be conducted using
31、theprocedure given in Section DVB.1. For Type 1, the allowable spread of flame of1,82 m (6 feet) or less in 10 minutes. For Type 4, the allowable spread of flame is3,96 m (13 feet) or less in 4 minutes. For Type 7, the allowable spread of flame is2,4 m (8 feet) or less in 10 minutes.c) Burning Brand
32、 Test on Top Surface: The test shall be conducted using theprocedure given in Section DVB.2 using a C Brand. For Type 1, 4, and 7, passingresults using a C Brand shall be demonstrated.10.17DV.4.4 A Type 2, 5, or 8 module meets the following requirements:a) Construction: Glass superstrate of 3,6 0,76
33、 mm (0,14 0,03 in); a polymericencapsulant between the superstrate and cells with a pre-lamination thickness of0,45 0,2 mm (0,018 0,008 in); either a polymeric encapsulant between the cellsand substrate with a pre-lamination thickness of 0,45 0,2 mm (0,018 0,008 in)and a polymeric substrate with nom
34、inal thickness between 0,025 mm (0,001 in)and 0,30 mm thickness (0,012 in) or a combined substrate and encapsulant thatmeets the pre-lamination total thickness equal to an encapsulant thickness of0,45 0,2 mm (0,018 0,008 in) and a polymeric substrate with nominal thicknessbetween 0,025 mm (0,001 in)
35、 and 0,30 mm thickness (0,012 in); and metallicframing protecting the edge of the laminate.b) Spread of Flame Test on Top Surface: The test shall be conducted using theprocedure given in Section DVB.1. For Type 2, the allowable spread of flame of1,82 m (6 feet) or less in 10 minutes. For Type 5, the
36、 allowable spread of flame is3,96 m (13 feet) or less in 4 minutes. For Type 8, the allowable spread of flame is2,4 m (8 feet) or less in 10 minutes.c) Burning Brand Test on Top Surface: The test shall be conducted using theprocedure given in Section DVB.2 using a C Brand. For Type 2, 5, and 8, pass
37、ingresults using a C Brand shall be demonstrated.10.17DV.4.5 A Type 3, 6, or a 9-15 module meets the following requirements:a) Construction: Glass superstrate of 2,67 0,76 mm (0,105 0,030 in); polymericencapsulant with a total pre-lamination thickness of in 0,9 0,5 mm (0,035 0,02in); glass substrate
38、 of 2,67 0,76 mm (0,105 0,030 in) without framing.b) Spread of Flame Test on Top Surface: The test shall be conducted using theprocedure given in Section DVB.1. For Type 3, 10 and 13, the allowable spread offlame of 1,82 m (6 feet) or less in 10 minutes. For Type 6, 11, and 14, theallowable spread o
39、f flame is 3,96 m (13 feet) or less in 4 minutes. For Type 9, 12,and 15, the allowable spread of flame is 2,4 m (8 feet) or less in 10 minutes.c) Burning Brand Test on Top Surface: The test shall be conducted using theprocedure given in Section DVB.2. For Type 3, 6, and 9, passing results using a CB
40、rand shall be demonstrated. For Type 10, 11, and 12, passing results using a BBrand shall be demonstrated. For Type 13, 14, and 15, passing results using an ABrand shall be demonstrated.DECEMBER 4, 2017NATIONAL DIFFERENCES FOR UL 61730-26UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTIO
41、N ORDISTRIBUTION WITHOUT PERMISSION FROM UL10.17DV.4.6 New types of PV modules with other constructions and fire performance canbe defined as needed. Table 10.17DV.4.6.1 lists the types of PV modules based onconstruction and fire performance. The fire performance of these other constructions shallbe
42、 tested in accordance with Sections DVB.1 and DVB.2.Table 10.17DV.4.6.1Construction and fire performance for PV module typesSuperstrate Encapsulant(Super/Cell)Encapsulant(Cell/Sub)Substrate FrameType Material/ThicknessMaterial/ThicknessMaterial/ThicknessMaterial/ThicknessMaterial Spread ofFlameBurni
43、ngBrand1 Glass/3,60,76 mm(0,14 0,03in)Polymer /0,45 0,2 mm(0,018 0,008 in)Polymer /0,45 0,2 mm(0,018 0,008 in)Polymer /0,30 mm(0,012 in) thickness 0,64 mm(0,025 inch)Metallic 1,82 m (6feet) or lessin 10 minutesC Brand2 Glass/3,60,76 mm(0,14 0,03in)Polymer /0,45 0,2 mm(0,018 0,008 in)Polymer /0,45 0,
44、2 mm(0,018 0,008 in)Polymer /0,025 mm(0,001 in) thickness 0,30 mm(0,012 in)Metallic 1,82 m (6feet) or lessin 10 minutesC Brand3 Glass / 2,670,76 mm(0,105 0,030 in)N/A Polymer / 0,90,5 mm(0,035 0,02in)Glass / 2,670,76 mm(0,105 0,030 in)None 1,82 m (6feet) or lessin 10 minutesC Brand4 Same asType 1Sam
45、e asType 1Same asType 1Same asType 1Same asType 13,96 m (13feet) or lessin 4 minutesSame asType 15 Same asType 2Same asType 2Same asType 2Same asType 2Same asType 2Same asType 4Same asType 26 Same asType 3Same asType 3Same asType 3Same asType 3Same asType 3Same asType 4Same asType 17 Same asType 1Sa
46、me asType 1Same asType 1Same asType 1Same asType 12,4m(8feet)or less in 10minutesSame asType 18 Same asType 2Same asType 2Same asType 2Same asType 2Same asType 2Same asType 7Same asType 29 Same asType 3Same asType 3Same asType 3Same asType 3Same asType 3Same asType 7Same asType 310 Same asType 3Same
47、 asType 3Same asType 3Same asType 3Same asType 3Same asType 1B Brand11 Same asType 3Same asType 3Same asType 3Same asType 3Same asType 3Same asType 4Same asType 1012 Same asType 3Same asType 3Same asType 3Same asType 3Same asType 3Same asType 7Same asType 1013 Same asType 3Same asType 3Same asType 3
48、Same asType 3Same asType 3Same asType 1A Brand14 Same asType 3Same asType 3Same asType 3Same asType 3Same asType 3Same asType 4Same asType 1315 Same asType 3Same asType 3Same asType 3Same asType 3Same asType 3Same asType 7Same asType 13DECEMBER 4, 2017 NATIONAL DIFFERENCES FOR UL 61730-2 7UL COPYRIG
49、HTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL10.18DV D2 Deletion:Delete Clause 10.18.10.27DV D2 Modification by replacing Clause 10.27 with the following:This test is equivalent to MQT 14.1 and MQT 14.2 in IEC 61215-2 with the exceptions thatthe force used in the retention of junction box on mounting surface shall be increased from40 N to 156 N and the forces used in the test of cord anchorage shall be either the valuegiven in Table 6 (of IEC 62790) or 89 N, whiche
