UL 1699B-2018 UL Standard for safety Photovoltaic (PV) DC Arc-Fault Circuit Protection (First Edition).pdf

1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1699B Photovoltaic (PV) DC Arc-Fault Circuit Protection STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRI

2、GHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Photovoltaic (PV) DC Arc-Fault Circuit Protection, UL 1699B First Edition, Dated August 22, 2018 SUMMARY OF TOPICS This is the rst edition of ANSI/UL 1699B, Standard for Photo

3、voltaic (PV) DC Arc-Fault Circuit Protection. The new requirements are substantially in accordance with Proposal(s) on this subject dated January 5, 2018 and June 15, 2018. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by

4、 any means, electronic, mechanical photocopying, 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

5、event will UL be liable for any special, incidental, 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 o

6、f the possibility of such damage. In no event 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,

7、 expense, liability, damage, claim, or judgment (including reasonable attorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. AUGUST 22, 2018 UL 1699B tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER R

8、EPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL AUGUST 22, 2018 UL 1699B tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL AUGUST 22, 2018 1 UL 1699B Standard for Photovoltaic (PV) DC Arc-Fault Circuit Protection

9、 First Edition August 22, 2018 This ANSI/UL Standard for Safety consists of the First Edition. The most recent designation of ANSI/UL 1699B as an American National Standard (ANSI) occurred on August 10, 2018. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, and Title

10、Page. 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 Standards Development System (CSDS) at https:/. ULs Standards for Safety are copyrighted by UL. Neither a printe

11、d 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 exclusive property of UL. COPYRIGHT 2018 UNDERWRITERS LABORATORIES INC. ANSI/UL 1699-2018UL COPYRIGHTED MATERIAL NOT A

12、UTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL AUGUST 22, 2018 PHOTOVOLTAIC (PV) DC ARC-FAULT CIRCUIT PROTECTION - UL 1699B 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS PART 1

13、ALL DEVICES INTRODUCTION 1 Scope .7 2 Glossary .7 3 Components9 4 Units of Measurement 9 5 Undated References .10 CONSTRUCTION 6 General.10 7 Corrosion Protection .10 8 Current Carrying Parts10 9 Internal Wiring .10 10 Insulation 10 11 Power Supply 10 12 Operating Mechanism .11 13 Programmable Circu

14、it Components .11 14 Electronic Interruption .12 14.1 General .12 14.2 Off state or stand-by mode current12 14.3 Reliability13 14.4 Programmable circuit components13 MANUFACTURING AND PRODUCTION LINE TESTS 15 General13 P A R T2P VAFCI, PV AFD, AND PV ID DEVICES CONSTRUCTION 16 General13 17 Accessibi

15、lity of Energized Parts 14 18 Spacings 16 19 Terminals 17 19.1 General .17 19.2 Terminal leads .17 19.3 Wire binding screw terminals 18 19.4 Pressure wire terminals .18 20 Enclosure 19 21 Grounding .19 22 Annunciator 19 23 Test Circuits .19 PERFORMANCE AUGUST 22, 2018 PHOTOVOLTAIC (PV) DC ARC-FAULT

16、CIRCUIT PROTECTION - UL 1699B 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 24 General20 25 Humidity Conditioning .21 26 Leakage Current Measurement .22 27 Voltage Surge Test .24 27.1 General .24 27.2 Unwanted tripping test (Ring wave).25

17、 27.3 Surge immunity test (Combination wave) 25 28 Environmental Test Sequence27 29 Arc Fault Detection Tests 28 29.1 General .28 29.2 One string, one MPPT .39 29.3 Two strings combined, one MPPT 41 29.4 Combiner box43 29.5 External AFCI45 29.6 DC-DC converter systems .45 29.7 Microinverters47 30 Un

18、wanted Tripping Tests 50 30.1 General .50 30.2 Loading condition I Inverters, converters, and charge controllers .50 30.3 Loading condition II DC switch operation 55 30.4 Loading condition III Irradiance step changes 56 31 Normal Temperature Test .57 32 Overvoltage Test .58 33 Overload Test 59 34 En

19、durance Test 59 35 Dielectric Voltage-Withstand Test .60 36 Abnormal Operations Test .61 37 Short Circuit Current Test62 38 Corrosion Test .63 39 Surge Current Test .63 39.1 General .63 39.2 Mounting and installation 64 39.3 Surge parameters 64 39.4 Surge polarity 64 40 Abnormal Overvoltage Tests .6

20、4 40.1 General .64 40.2 Full phase voltage high current abnormal overvoltage test .65 40.3 Limited current abnormal overvoltage test .67 41 Supplemental Voltage Surge Immunity Test68 41.1 General .68 41.2 Surge immunity test (combination wave) 69 42 Resistance to Environmental Noise Test 70 42.1 Gen

21、eral .70 42.2 Electrostatic discharge immunity .71 42.3 Radiated electromagnetic eld immunity 71 42.4 Electrical fast transient immunity .71 42.5 Voltage surge immunity .71 42.6 Immunity to conducted disturbances, induced by RF elds 72 42.7 Voltage dips, short interruptions and voltage variations im

22、munity .72 43 Strain-Relief Tests 72 43.1 Terminal lead strain-relief test72 43.2 Power-supply cord strain-relief test .73 44 Mechanical Tests .73 AUGUST 22, 2018 PHOTOVOLTAIC (PV) DC ARC-FAULT CIRCUIT PROTECTION - UL 1699B 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBU

23、TION WITHOUT PERMISSION FROM UL 45 Dust Test 73 RATINGS 46 General74 MARKINGS 47 General75 INSTRUCTIONS 48 Operating and Installation Instructions .76 PART 3 INVERTERS, CONVERTERS, AND CHARGE CONTROLLERS WITH INTEGRAL PHOTOVOLTAIC DC ARC-FAULT CIRCUIT INTERRUPTER PROTECTION GENERAL 49 General77 CONS

24、TRUCTION 50 General77 51 Alternate Spacings Clearances and Creepage Distances 77 52 Annunciator 78 53 Test Circuits .78 PERFORMANCE 54 General79 55 Voltage Surge Test .80 56 Overvoltage, Overload, Endurance, Abnormal Operations, and Short Circuit Tests80 MARKINGS 57 General81 INSTRUCTIONS 58 Operati

25、ng and Installation Instructions .81 APPENDIX A Standards for ComponentsA1 APPENDIX B Manufacturing and Production Line Tests B1 General .B1 B2 Manufacturers Production Line Test Program .B1 AUGUST 22, 2018 PHOTOVOLTAIC (PV) DC ARC-FAULT CIRCUIT PROTECTION - UL 1699B 5UL COPYRIGHTED MATERIAL NOT AUT

26、HORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL B3 Manufacturers Proprietary Inspection Program (PIP) .B1 AUGUST 22, 2018 PHOTOVOLTAIC (PV) DC ARC-FAULT CIRCUIT PROTECTION - UL 1699B 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT

27、PERMISSION FROM UL PART 1 ALL DEVICES INTRODUCTION 1 Scope 1.1 TheserequirementscoverDCphotovoltaicarc-faultcircuitprotectiondevicesintendedforuseinsolar photovoltaic electrical energy systems as described in Article 690 of the National Electrical Code, NFPA 70. This protection is intended to mitiga

28、te the effects of arcing faults that may pose a risk of re ignition under certain conditions if the arcing persists. 1.2 These requirements cover devices including photovoltaic (PV) dc arc-fault circuit-interrupters (AFCI), arc-fault detectors (AFD), interrupting devices (ID) and inverters, converte

29、rs, and charge controllers with integral arc-fault circuit-interrupter protection. 1.3 These requirements cover devices rated 1500 volts or less. They are intended for use in dc electrical systems that are supplied by a photovoltaic source, such as a module with solar cells designed to generate dc p

30、ower when exposed to sunlight. 1.4 These devices are not intended to detect glowing connections. 1.5 In Part 1 of these requirements the term device is used generically to apply to all of the devices covered by these requirements and is modied when the requirement does not apply to all types. In Par

31、t 2 and Part 3 of these requirements the term device is used generically to apply to all devices covered by the particular part of this Standard, and is modied when the requirement does not apply to all types. 1.6 A device that is also intended to perform other functions, such as overcurrent protect

32、ion, disconnects, combiner boxes, inverters, or other PV system functions or any combination thereof, shall additionally comply with the requirements of the applicable Standard or Standards that cover devices that provide those functions as intended for use in PV systems. 2 Glossary 2.1 For the purp

33、oses of this standard the following denitions apply. 2.2 ANNUNCIATOR A feature of a device that gives an indication upon the functioning of a protective device. 2.3 ARCING A luminous discharge of electricity across an insulating medium, usually accompanied by the partial volatilization of the electr

34、odes. 2.4 ARCING FAULT An unintentional arcing condition in a circuit. 2.5 CELL The basic photovoltaic device that generates electricity when exposed to sunlight. 2.6 CHARGE CONTROLLER A device intended to control the charging process of storage batteries used in photovoltaic power systems. AUGUST 2

35、2, 2018 PHOTOVOLTAIC (PV) DC ARC-FAULT CIRCUIT PROTECTION - UL 1699B 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 2.7 CONVERTER (DC) A device that accepts dc power input and converts it to another form of dc power. 2.8 DUT Device under t

36、est. 2.9 FUNCTIONAL INSULATION Insulation that is necessary only for the functioning of the equipment. 2.10 INVERTER An electronic device that changes dc power to ac power. 2.11 INTERRUPTING CONTACT A contact device inserted in series with the source and/or load. It is intended to stop the ow of arc

37、ing current by opening the circuit and may be a mechanical contact set with an air gap or a solid state switching device. 2.12 MICROELECTRONICS Monolithic, hybrid, or module circuits, where the internal circuit connections are not accessible exclusive of provided external connection pins or pads. Th

38、e circuits are capable of functioning in the analogue mode, digital mode, or a combination of the two modes. Examples of microelectronics include: ASICs, ROMs, RAMs, PROMs, EPROMs, PALs, and PLDs. See 2.18. 2.13 OPERATION INHIBITION Denotes the concealment of an arcing fault by the normal operation

39、of certain circuit components. 2.14 PARALLEL ARCING Arcing that is in parallel with the load, such as between the positive and negative conductors, or between any two conductors or, any single conductor and ground. 2.15 PHOTOVOLTAIC (PV) DC ARC-FAULT CIRCUIT-INTERRUPTER (PV AFCI) A device that is in

40、tended to be installed in a photovoltaic energy system to interrupt power delivered to an arcing fault when an arcing fault is detected by the AFCI. It is intended to provide protection to the PV system from unwanted effects of arcing. 2.16 PHOTOVOLTAIC (PV) DC ARC-FAULT DETECTOR (PV AFD) A device t

41、hat is intended to provideprotectiontothePVsystemfromunwantedeffectsofarcingbyenablinganinterruptionorshorting device to interrupt power delivered to an arcing fault. 2.17 PHOTOVOLTAIC (PV) DC INTERRUPTING DEVICE (PV ID) A device that is intended for installation in a photovoltaic energy system to i

42、nterrupt a detected arcing fault. The device is generally enabled by another device which detects arcing, such an arc-fault detector. The device can perform an interruption or shorting function as appropriate to interrupt power delivered to an arcing fault. 2.18 PROGRAMMABLE COMPONENT Any microelect

43、ronic hardware that can be programmed in the design center, the factory, or in the eld. Here the term programmable is taken to be any manner in which one can alter the software wherein the behavior of the component can be altered. The microelectronics dened in 2.12 are examples of programmable compo

44、nents. 2.19 PV MODULE The smallest environmentally protected assembly of solar cells and ancillary parts, such as interconnects and terminals, intended to generate dc power under sunlight. AUGUST 22, 2018 PHOTOVOLTAIC (PV) DC ARC-FAULT CIRCUIT PROTECTION - UL 1699B 8UL COPYRIGHTED MATERIAL NOT AUTHO

45、RIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 2.20 SERIES ARCING Arcing that is in series with the load and is the result of a failure in the intended continuity of a conductor, connection, module or other system components in the direct current PV source and output circu

46、its. 2.21 SHUNTING CONTACT A contact device inserted in parallel with the source and/or load. It is intended to stop the ow of arcing current by short circuiting the supply or shunting current around the arcing fault location. It may be a mechanical contact set with an air gap or a solid state switc

47、hing device. 2.22 TYPE 1 DEVICE A photovoltaic device that is intended to detect or interrupt series arcing faults. 2.23 UNWANTED TRIP A tripping function in response to a condition that is not an arcing fault but a condition that occurs as part of the normal or anticipated operation of circuit comp

48、onents. 3 Components 3.1 Except as indicated in 3.2, 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. 3.2 A component is not req

49、uired to comply with a specic requirement that: a) Involves a feature or characteristic not required in the application of the component in the product covered by this standard, or b) Is superseded by a requirement in this standard. 3.3 A component shall be used in accordance with its rating established for the intended conditions of use. 3.4 Specic components are incomplete in construction features or restricted in performance capabilities. Such componen