1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1703 Flat-Plate Photovoltaic Modules and PanelsUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZE
2、D FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Flat-Plate Photovoltaic Modules and Panels, UL 1703 Third Edition, Dated March 15, 2002 SUMMARY OF TOPICS The revisions dated October 12, 2015 were issued to incorporate the Fire Classication Test Change
3、s to Section 16, Fire Performance - PV Modules or Panels and Roofs, and Section 31.2, System Fire Class Rating of Module or Panel with Mounting Systems in Combination with Roof Coverings. The new requirements are substantially in accordance with Proposal(s) on this subject dated July 17, 2015. Text
4、that has been changed in any manner or impacted by ULs electronic publishing system is marked with a vertical line in the margin. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means, electronic, mechanical photocop
5、ying, recording, or otherwise without prior permission of UL. UL provides this Standard as is without warranty of any kind, either expressed or implied, including but not limited to, the implied warranties of merchantability or tness for any purpose. In no event will UL be liable for any special, in
6、cidental, consequential, indirect or similar damages, including loss of prots, lost savings, loss of data, or any other damages arising out of the use of or the inability to use this Standard, even if UL or an authorized UL representative has been advised of the possibility of such damage. In no eve
7、nt shall ULs liability for any damage ever exceed the price paid for this Standard, regardless of the form of the claim. Users of the electronic versions of ULs Standards for Safety agree to defend, indemnify, and hold UL harmless from and against any loss, expense, liability, damage, claim, or judg
8、ment (including reasonable attorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. OCTOBER 12, 2015 UL 1703 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISS
9、ION FROM UL OCTOBER 12, 2015 UL 1703 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARCH 15, 2002 (Title Page Reprinted: October 12, 2015) 1 UL 1703 Standard for Flat-Plate Photovoltaic Modules and Panels First Edit
10、ion August, 1986 Second Edition May, 1993 Third Edition March 15, 2002 This ANSI/UL Standard for Safety consists of the Third Edition including revisions through October 12, 2015. The most recent designation of ANSI/UL 1703 as an American National Standard (ANSI) occurred on October 12, 2015. ANSI a
11、pproval for a standard does not include the Cover Page, Transmittal Pages, Title Page, or effective date information. Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time. Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative
12、Standards Development System (CSDS) at http:/. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standard should be altered in any way. All of ULs Standards and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusi
13、ve property of UL. COPYRIGHT 2015 UNDERWRITERS LABORATORIES INC. ANSI/UL 1703-2015UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL OCTOBER 12, 2015 FLAT-PLATE PHOTOVOLTAIC MODULES AND PANELS - UL 1703 2 No Text on This PageUL COPYRIGHTED MATE
14、RIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .7 2 Glossary .8 3 Units of Measurement .9 4 Components 9 5 References 10 CONSTRUCTION 6 General .10 7 Polymeric Materials 11 8 Current-Carrying Parts and Internal Wiring 13 9 Wirewa
15、ys .14 10 Connection Means 14 11 Bonding and Grounding 14C 12 Spacings 16 13 Wiring Compartments .17 13.1 General .17 13.2 Metallic wiring compartments 18 13.3 Nonmetallic wiring compartments .19 14 Corrosion Resistance .20 15 Accessibility of Uninsulated Live Parts .21 16 Fire Performance - PV Modu
16、les or Panels and Roofs 22A 17 Superstrate .22D PERFORMANCE 18 General 22D 18A Thin-Film Modules .26 19 Temperature Test .26 20 Voltage, Current and Power Measurements Test .31 21 Leakage Current Test .31 22 Strain Relief Test .32 23 Push Test 32 24 Cut Test .33 25 Bonding Path Resistance Test .35 2
17、6 Dielectric Voltage-Withstand Test .35 27 Wet Insulation-Resistance Test .36 28 Reverse Current Overload Test .37 29 Terminal Torque Test .37 30 Impact Test 38 31 Fire Tests 38 31.1 Type tests for re performance characterization of modules and panels independent of roof coverings .38 31.2 System Fi
18、re Class Rating of module or panel with mounting systems in combination with roof coverings 38B 32 General 38O 33 Water Spray Test .38O 34 Accelerated Aging Test 42 OCTOBER 12, 2015 FLAT-PLATE PHOTOVOLTAIC MODULES AND PANELS - UL 1703 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION
19、OR DISTRIBUTION WITHOUT PERMISSION FROM UL 35 Temperature Cycling Test 43 36 Humidity Test .45 37 Corrosive Atmosphere Test .47 37.1 Salt spray test .47 37.2 Moist carbon dioxide/sulphur dioxide 48 38 Metallic Coating Thickness Test 49 39 Hot-Spot Endurance Test .51 39.1 General .51 39.2 Cell select
20、ion and instrumentation 52 39.3 Intrusive method 52A 39.4 Nonintrusive method 53 39.5 Theory and method of cell selection 54 39.6 Selection of hot-spot test level .55 39.7 Type A cells (high shunt resistance) 56 39.8 Type B cells (low shunt resistance) .56 39.9 Test execution .56 40 Arcing Test 58 4
21、0.1 General .58 40.2 Method A .58 40.3 Method B .58 40.4 Methods A and B 58 40.5 Method C .58 40.6 All methods 58 41 Mechanical Loading Test 61 42 Wiring Compartment Securement Test 62A 42A Cemented Joints 62A 42A.1 General .62A 42A.2 Material tests 62A 42A.3 UV weathering resistance .62B PRODUCTION
22、 LINE TESTS 43 Factory Dielectric Voltage-Withstand Test 62B 44 Factory Voltage, Current, and Power Measurements Test 64 45 Grounding Continuity Test 64 RATING 46 Details .64A MARKING 47 Details .64A 48 Installation and Assembly Instructions 67 SUPPLEMENT SA - SAMPLE PRODUCTION LINE TESTS SA1 Scope
23、SA1 SA2 Sample Size .SA1 SA3 Factory Voltage, Current, and Power Measurements Test .SA1 NOVEMBER 18, 2014 FLAT-PLATE PHOTOVOLTAIC MODULES AND PANELS - UL 1703 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APPENDIX A Standards for Componen
24、tsA1 APPENDIX B Retest Guidelines (Informative) MAY 19, 2015 FLAT-PLATE PHOTOVOLTAIC MODULES AND PANELS - UL 1703 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL This page intentionally left blank. JUNE 30, 2004 FLAT-PLATE PHOTOVOLTAIC MODU
25、LES AND PANELS - UL 1703 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover at-plate photovoltaic modules and panels intended for installation on or integral with buildings, or to be freestandi
26、ng (that is, not attached to buildings), in accordance with the National Electrical Code, NFPA 70, and Model Building Codes. 1.2 These requirements cover modules and panels intended for use in systems with a maximum system voltage of 1000 V or less. 1.3 These requirements also cover components inten
27、ded to provide electrical connection to and mounting facilities for at-plate photovoltaic modules and panels. 1.4 These requirements do not cover: a) Equipment intended to accept the electrical output from the array, such as power conditioning units (inverters) and batteries; b) Any tracking mechani
28、sm; c) Cell assemblies intended to operate under concentrated sunlight; d) Optical concentrators; or e) Combination photovoltaic-thermal modules or panels. 1.5 Deleted October 1, 2003 OCTOBER 1, 2003 FLAT-PLATE PHOTOVOLTAIC MODULES AND PANELS - UL 1703 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FUR
29、THER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 2 Glossary 2.1 For the purpose of this standard, the following denitions apply. 2.2 AIR MASS (AM) A dimensionless quantity, the ratio of: a) The actual path length of radiation through the atmosphere to b) The vertical path length of radia
30、tion through the atmosphere to sea level. At sea level, for all but very high zenith angles (q z ) (the angle subtended by the zenith and the line of sight to the sun), AM = sec q z 2.3 ARRAY A mechanically-integrated assembly of modules or panels with a support structure and foundation, tracking, t
31、hermal control, and other components, if used, to form a dc power-producing unit. 2.4 BLOCKING DIODE A diode used to block reverse current into a photovoltaic-source circuit. 2.5 BYPASS DIODE A diode connected across one or more cells, modules, or panels in the forward current direction to allow cur
32、rent to bypass such cells, modules, or panels. 2.6 CELL The basic photovoltaic device that generates electricity when exposed to sunlight. 2.7 ELECTRIC SHOCK A risk of electric shock is considered to exist at a part if the potential between the part and earth ground or any other accessible part is m
33、ore than 30 Vdc and the leakage current exceeds the values specied in Table 21.1. 2.8 ENCAPSULANT Transparent insulating material enclosing the cells and cell interconnects. 2.9 INTERCONNECT A conductor within a module that provides a mechanism for conducting electricity between cells. 2.10 MAXIMUM
34、POWER (P max ) The point on the current-versus-voltage curve of a module, at STC, where the product of current and voltage is maximum. 2.11 MAXIMUM SYSTEM VOLTAGE The sum of the maximum open-circuit voltages of the maximum number of modules or panels to be connected in series in a system. 2.12 METAL
35、LIZATION An electrically conductive metal coating on the surface of a cell. 2.13 MODULE (FLAT-PLATE) The smallest environmentally protected, essentially planar assembly of solar cells and ancillary parts, such as interconnects and terminals, intended to generate dc power under unconcentrated sunligh
36、t. The structural (load-carrying) member of a module can either be the top layer (superstrate), or the back layer (substrate), in which: a) The superstrate is the transparent material forming the top (light-facing) outer surface of the module. If load-carrying, this constitutes a structural superstr
37、ate. b) The substrate is the material forming the back outer surface of a module. If load-carrying, this constitutes a structural substrate. MARCH 15, 2002 FLAT-PLATE PHOTOVOLTAIC MODULES AND PANELS - UL 1703 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PE
38、RMISSION FROM UL 2.14 NOMINAL OPERATING CELL TEMPERATURE (NOCT) The equilibrium cell junction temperature corresponding to nominal module service operating conditions in a reference environment of 80 mW/cm 2 irradiance, 20C (68F) ambient air temperature, 1 m/s wind across the module from side to sid
39、e, an electrically open circuit, and a mounting method in accordance with 19.6 and 19.7. 2.15 PANEL (FLAT-PLATE) A collection of modules mechanically fastened together, wired, and designed to provide a eld-installable unit. 2.16 RATED OPERATING VOLTAGE The voltage, 10 percent, at which maximum power
40、 is available from the module or panel under STC. 2.16.1 REVERSE CURRENT Current owing in a reverse direction to the normal direction resulting from a normally illuminated PV module. 2.17 STANDARD TEST CONDITIONS (STC) Test conditions consisting of: a) 100 mW/cm 2 irradiance, b) AM 1.5 spectrum, and
41、 c) 25C cell temperature. 2.18 UNCONDITIONED MODULES OR SPECIMENS Modules or specimens that have not been previously subjected to tests or environmental exposures. 3 Units of Measurement 3.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate i
42、nformation. 4 Components 4.1 Except as indicated in 4.2, a component of a product covered by this standard shall comply with the requirements for that component. See Appendix A for a list of standards covering components generally used in the products covered by this standard. 4.2 A component need n
43、ot comply with a specic requirement that: a) Involves a feature or characteristic not needed in the application of the component covered by this standard, or b) Is superseded by a requirement in this standard. 4.3 A component shall be used in accordance with its rating established for the intended c
44、onditions of use. MARCH 15, 2002 FLAT-PLATE PHOTOVOLTAIC MODULES AND PANELS - UL 1703 9UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 4.4 Specic components are incomplete in construction features or restricted in performance capabilities. S
45、uch components are intended for use only under limited conditions, such as certain temperatures not exceeding specied limits, and shall be used only under those specic conditions. 5 References 5.1 Any undated reference to a code or standard appearing in the requirements of this standard shall be int
46、erpreted as referring to the latest edition of that code or standard. CONSTRUCTION 6 General 6.1 A module shall be completely assembled when shipped from the factory. A panel may be completely assembled when shipped from the factory, or may be provided in subassemblies, provided assembly of the pane
47、l does not involve any action that is likely to affect compliance with the requirements of this standard. Exception: An assembly part need not be affixed to the module at the factory. 6.2 A module or panel assembly bolt, screw, or other part shall not be intended for securing the complete device to
48、the supporting surface or frame. 6.3 Incorporation of a module or panel into the nal assembly shall not require any alteration of the module or panel unless specic details describing necessary modication(s) for alternate installation(s) are provided in the installation instructions. If a module or p
49、anel must bear a denite relationship to another for the intended installation and operation of the array (for example, to allow connectors to mate), it shall be constructed to permit it to be incorporated into the array in the correct relationship without the need for alteration. 6.4 The construction of a product shall be such that during installation it will not be necessary to alter or remove any cover, baffle, insulation, or shield that is required to reduce the likelihood
