UL 676-2015 UL Standard for Safety Underwater Luminaires and Submersible Junction Boxes (Ninth Edition Reprint with revisions through and including February 26 2018).pdf

1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 676 Underwater Luminaires and Submersible Junction BoxesUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT

2、AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Underwater Luminaires and Submersible Junction Boxes, UL 676 Ninth Edition, Dated August 10, 2015 Summary of Topics This new edition was issued to update requirements for exible cord and connect

3、ors, permitted cord size for low voltage luminaires, drainage and water entry openings, decelerating unit construction, marking of isolated low voltage luminaires, and submersible luminaires. The new and revised requirements are substantially in accordance with Proposal(s) on this subject dated Apri

4、l 3, 2015 and May 29, 2015. Text 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

5、, 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 event will

6、 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 of the poss

7、ibility 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, expense,

8、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 10, 2015 UL 676 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION

9、OR DISTRIBUTION WITHOUT PERMISSION FROM UL AUGUST 10, 2015 UL 676 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL AUGUST 10, 2015 1 UL 676 Standard for Underwater Luminaires and Submersible Junction Boxes The rst edit

10、ion was titled Standard for Underwater Lighting Fixtures and Junction Boxes for Swimming Pools. The second and third editions were titled Standard for Underwater Lighting Fixtures for Swimming Pools. The fourth, fth, sixth, and seventh editions were titled Standard for Underwater Lighting Fixtures.

11、The submersible luminaires now covered by this standard were originally covered by the Standard for Electric Lighting Fixtures, UL 57. First Edition March, 1972 Second Edition December, 1977 Third Edition June, 1980 Fourth Edition October, 1984 Fifth Edition April, 1986 Sixth Edition October, 1993 S

12、eventh Edition April, 1999 Eighth Edition June, 2003 Ninth Edition August 10, 2015 This ANSI/UL Standard for Safety consists of the Ninth Edition. The most recent designation of ANSI/UL 676 as an American National Standard (ANSI) occurred on August 10, 2015. ANSI approval for a standard does not inc

13、lude 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 Standards Development System (CSDS)

14、 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 exclusive property of UL. COPYRIGHT 2015 U

15、NDERWRITERS LABORATORIES INC. ANSI/UL 676-2015UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL AUGUST 10, 2015 UNDERWATER LUMINAIRES AND SUBMERSIBLE JUNCTION BOXES - UL 676 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURT

16、HER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .6 2 Components 7 3 Units of Measurement .7 4 References .7 5 Glossary .7 PART I SWIMMING POOL LUMINAIRES CONSTRUCTION LUMINAIRES 6 General 8 7 Sheet Metal 9 8 Cast Metal .9 9 Mounting Means 9 10 Flexible Cord

17、and Connectors 10 11 Power Supply Connections 12 11.1 General .12 11.2 Wet-niche and no-niche luminaires .14 11.3 Dry-niche luminaires 14 11.4 Low voltage luminaires 15 12 Diffusers .15 13 Guards 16 14 Gaskets .16 15 Adhesives Used in Underwater Luminaires 16 16 Wiring Devices .17 17 Wireways 17 18

18、Wiring .18 19 Splices 18 20 Polarization and Identication 18 21 Exposure of Live Parts 18 22 Position of Live Parts 19 23 Spacings 19 24 Barriers 20 25 Grounding .21 26 Bonding .22 26.1 Ground-fault current path continuity .22 26.2 Continuity to pool bonding grid conductor .24 27 Drainage and Water

19、Entry .25 28 Integral Overheating Protection .25 CONSTRUCTION LUMINAIRE HOUSINGS (FORMING SHELLS) FOR WET-NICHE LUMINAIRES 29 General 26 30 Sheet Metal 26 31 Cast Metal .27 32 Connections for Wiring Systems 27 AUGUST 10, 2015 UNDERWATER LUMINAIRES AND SUBMERSIBLE JUNCTION BOXES - UL 676 3UL COPYRIGH

20、TED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PERFORMANCE 33 Temperature Test .27 34 Abnormal Operation Tests .28 35 Water Leakage Test 29 36 Dielectric Voltage-Withstand Test .29 37 Strain-Relief Test .29 38 Bonding Millivolt Drop Test .30 38.1 Gene

21、ral .30 38.2 Ground-fault current path impedance determination 30 38.3 Impedance to pool bonding grid determination .32 39 High Current Test .33 40 Impact Test 36 41 Electric Shock Test .43 41.1 General .43 41.2 Sea water tests 49 42 Gasket Accelerated Aging Test .49 43 Flexible Cord Guard and Suppo

22、rt Test 50 MARKINGS 44 Luminaires .50 45 Luminaire Housings .53 PART II SUBMERSIBLE LUMINAIRES CONSTRUCTION 46 General 53 47 Corrosion Protection 54 48 Power Supply Connections 55 49 Bonding .55 50 Barriers 55 51 Strain Relief 56 PERFORMANCE 52 Temperature Test .56 53 Cycling Under Water Test .57 54

23、 Static Load Test 57 55 Impact Test 57 56 Strain-Relief Test .58 MARKINGS AND INSTALLATION INSTRUCTIONS 57 General 58 AUGUST 10, 2015 UNDERWATER LUMINAIRES AND SUBMERSIBLE JUNCTION BOXES - UL 676 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM

24、 UL PART III SUBMERSIBLE JUNCTION BOXES CONSTRUCTION 58 General 59 59 Corrosion Protection 59 60 Enclosure 59 61 Gaskets .60 PERFORMANCE 62 Watertightness Test .60 APPENDIX A Standards for ComponentsA1 APPENDIX B Discussion and Illustration of Bonding Millivolt Drop Test Requirements Described in Se

25、ction 38 B1 Purpose .B1 B2 Important Test Technique Considerations .B1 B3 Examples of Application of Selected Test Requirements to a Metal Wet-Niche Swimming Pool Luminaire and Luminaire Housing B2 AUGUST 10, 2015 UNDERWATER LUMINAIRES AND SUBMERSIBLE JUNCTION BOXES - UL 676 5UL COPYRIGHTED MATERIAL

26、 NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover electric luminaires for installation below the surface of the water in swimming pools, permanently installed spas, hot tubs, and similar water-containing vessels inte

27、nded to accommodate the complete or partial immersion of persons, and for operation on supply circuits rated 150 volts or less, in accordance with the National Electrical Code, NFPA 70. 1.2 These requirements also cover: a) Metal luminaire housings (forming shells) for use with wet-niche luminaires

28、intended for installation as described in 1.1; b) Mounting brackets for use with no-niche luminaires intended for installation as described in 1.1; and c) Electric luminaires and junction boxes for installation in fountains and similar water- containing vessels not intended to accommodate the comple

29、te or partial immersion of persons. 1.3 These requirements do not cover junction boxes for use in swimming pools and spas, ground-fault circuit-interrupters, transformer enclosures, or transformers used for the supply of underwater luminaires. 1.4 A wet-niche luminaire as covered by these requiremen

30、ts is one intended for installation in a metal luminaire housing (forming shell) mounted in or on the wall of a swimming pool or fountain where the luminaire will be surrounded by water. The luminaire is supplied by a exible cord of sufficient length to permit the luminaire to be removed from the ni

31、che and lifted to the deck for servicing. 1.5 A dry-niche luminaire as covered by these requirements is one intended to be permanently mounted and sealed in the wall of a swimming pool or fountain. It is equipped with provisions for conduit connection, and is designed to be serviced from the rear in

32、 a passageway or tunnel behind the wall or from the deck. 1.6 A no-niche luminaire as covered by these requirements is one intended for installation on a mounting bracket that is, in turn, mounted in or on the wall of a swimming pool or fountain where the luminaire will not extend behind the plane o

33、f the wall and will be surrounded by water. The luminaire is supplied by a exible cord of a length that permits the luminaire to be removed from the mounting bracket and lifted to the deck for servicing. AUGUST 10, 2015 UNDERWATER LUMINAIRES AND SUBMERSIBLE JUNCTION BOXES - UL 676 6UL COPYRIGHTED MA

34、TERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 2 Components 2.1 Except as indicated in 2.2, 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 u

35、sed in the products covered by this standard. 2.2 A component is not required 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 stand

36、ard. 2.3 A component shall be used in accordance with its rating established for the intended conditions of use. 2.4 Specic components are incomplete in construction features or restricted in performance capabilities. Such components are intended for use only under limited conditions, such as certai

37、n temperatures not exceeding specied limits, and shall be used only under those specic conditions. 3 Units of Measurement 3.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information. 3.2 Unless indicated otherwise, all voltage and curre

38、nt values specied in this standard are root-mean-square (rms). 4 References 4.1 Any undated reference to a code or standard appearing in the requirements of this standard shall be interpreted as referring to the latest edition of that code or standard. 5 Glossary 5.1 For the purpose of this standard

39、 the following denitions apply. 5.2 FRESH WATER Water of electrical resistivity well above that of sea water, generally drawn from lakes, streams, or underground sources and delivered by a private well or a municipality for industrial, commercial or household use. Fresh water treated with salt for c

40、hlorine generation, resulting in electrical resistivity that is typically 89 ohm-centimeters or higher (6000 ppm or less), is still considered fresh water for the purposes of this standard. 5.3 SEA WATER Water of electrical resistivity on the order of 22 ohm-centimeters, representative of water foun

41、d in open seas and sometimes used (for therapeutic purposes) in swimming pools. AUGUST 10, 2015 UNDERWATER LUMINAIRES AND SUBMERSIBLE JUNCTION BOXES - UL 676 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PART I SWIMMING POOL LUMINAIRES CO

42、NSTRUCTION LUMINAIRES 6 General 6.1 A luminaire shall be constructed to provide mechanical strength appropriate for the stress it is likely to encounter during installation and use. 6.2 A luminaire shall be constructed to provide an enclosure for all electrical parts, including the lamp bulb. Except

43、ion No. 1: The lens face of a PAR lamp is not required to be enclosed. Exception No. 2: Flexible cord, attachment plugs, receptacles, and cord connectors are not required to be enclosed in an electrical enclosure when the luminaire and its installation complies with requirements for Flexible Cord an

44、d Connectors, Section 10. 6.3 A luminaire rated more than 15 volts and provided with a PAR lamp shall be provided with a guard, grid, or an outer lens. 6.4 A luminaire intended to be mounted facing upward shall have the lens guarded to prevent contact by any person. 6.5 All metal parts of a luminair

45、e, including assembly rivets, screws, and the like, shall be of a corrosion resistant metal. Copper alloy parts normally in contact with water shall have a zinc content not in excess of 15 percent. Aluminum and aluminum alloys shall not be used for any part of a luminaire normally in contact with wa

46、ter. Iron and steel parts made resistant to corrosion by plating, galvanizing, or equivalent means are permitted. Exception No. 1: Metal parts that are completely encapsulated by a potting compound that complies with the Outline of Investigation for Potting Compounds for Swimming Pool, Fountain, and

47、 Spa Equipment, UL 676A, need not be corrosion resistant. Exception No. 2: Metal parts whose deterioration from corrosion will not adversely affect compliance per (a) (d) below need not be corrosion resistant: a) Spacings requirements of Section 23, through migration or settling of particles to crea

48、te a conductive path across insulating materials; b) Bonding requirements of Section 26; c) Temperature Test of Section 33, through loss of heatsinking or reectance; or d) Electric Shock Test of Section 41, through loss of current-collection capacity. AUGUST 10, 2015 UNDERWATER LUMINAIRES AND SUBMER

49、SIBLE JUNCTION BOXES - UL 676 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 6.6 Paint, enamel, or other coatings that inhibit bonding of parts or reduce the electric-eld shielding effect (where required) shall not be used on either the inside or the outside of a luminaire. 6.7 Tin-lead solder shall not be used for the fastening of seams or the assembly of parts of a luminaire. 6.8 Self-threading or sheet-metal screws shall not