1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 379 Power Units for Fountain, Swimming Pool, and Spa LuminairesUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERI
2、AL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Power Units for Fountain, Swimming Pool, and Spa Luminaires, UL 379 First Edition, Dated June 19, 2013 Summary of Topics This is the rst edition of ANSI/UL 379. The new requirements are s
3、ubstantially in accordance with Proposal(s) on this subject dated April 19, 2013. 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 photocopying, recording, or otherwise without prior perm
4、ission 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, incidental, consequential, indirect or similar dam
5、ages, 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 event shall ULs liability for any damage ever excee
6、d 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 judgment (including reasonable attorneys fees) resul
7、ting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. The requirements in this Standard are now in effect, except for those paragraphs, sections, tables, gures, and/or other elements of the Standard having future effective da
8、tes as indicated in the note following the affected item. The prior text for requirements that have been revised and that have a future effective date are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. JUNE 19, 2013 UL 379 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED
9、FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JUNE 19, 2013 UL 379 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JUNE 19, 2013 1 UL 379 Standard for Power Units for Fountain, Swimming Pool, and
10、 Spa Luminaires First Edition June 19, 2013 This ANSI/UL Standard for Safety consists of the First Edition. The most recent designation of ANSI/UL 379 as an American National Standard (ANSI) occurred on June 19, 2013. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, T
11、itle 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) at http:/. ULs Standards for Safety are
12、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 2013 UNDERWRITERS LABORATORIES INC. ANSI/UL 379
13、-2013UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JUNE 19, 2013 UL 379 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS PART I ALL POWER UNITS FOR FO
14、UNTAIN, SWIMMING POOL, AND SPA LUMINAIRES INTRODUCTION 1 Scope .5 2 General 5 2.1 Power units 5 2.2 Undated references .5 2.3 Units of measurement .5 2.4 Electrical rating .5 2.5 DC output units 6 3 Components 6 3.1 General .6 3.2 Fuseholders .7 3.3 Fuses .7 3.4 Printed wiring boards .8 3.5 Terminal
15、 blocks 8 3.6 Wire connectors 9 3.7 Quick-connect wire connectors .9 CONSTRUCTION 4 Output Circuit Isolation 9 5 Class 2 Circuits Within Power Unit .10 6 Mechanical Assembly 10 7 Enclosures 11 7.1 General 11 7.2 Resistance to corrosion 12 7.3 Conduit connection provisions 13 7.4 Openings .14 7.5 Rai
16、n-tight enclosures 14 8 Splices and Connections .15 9 Separation of Circuits 15 10 Field-Wiring Connections 15 10.1 General .15 10.2 Terminals .15 10.3 Pigtail leads .16 11 Bushings for Wiring 17 12 Insulating Material for Mounting Live-Metal Parts .17 13 Coil Insulation 17 14 Wiring Devices .18 15
17、Electrical Spacings 18 16 Output Overload Protection 19 17 Grounding .19 18 Marking 20 JUNE 19, 2013 UL 379 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PERFORMANCE 19 General 22 20 Leakage Current Test .23 21 Open-Circuit Voltage Test .
18、23 22 Input Test .23 23 Heating Test .24 24 Dielectric Strength Test .26 25 Abnormal Heating Test followed by Dielectric Strength Test .27 26 Burnout Test 30 27 Pullout, Bending, and Twisting Tests .31 28 Endurance Test on Automatically-Reset Thermostats .31 29 Overload Test on Manually-Reset Thermo
19、stats .31 30 Rain Test 32 PART II POWER UNITS INTENDED FOR DIRECT CONDUIT CONNECTION TO A WET-NICHE OR NO-NICHE LUMINAIRE 31 General 32 JUNE 19, 2013 UL 379 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PART I ALL POWER UNITS FOR FOUNTAIN
20、, SWIMMING POOL, AND SPA LUMINAIRES INTRODUCTION 1 Scope 1.1 These requirements cover eld-installed air-cooled transformers and dc output power supplies intended to supply fountain, swimming pool, and spa luminaires in accordance with Article 680 of the National Electrical Code, NFPA 70. 1.2 These r
21、equirements do not address designs that vary the magnitude of voltage or current on the output for signal or control purposes. Designs that superimpose a signal on the output for control purposes area also not addressed. 2 General 2.1 Power units 2.1.1 These power units are not intended for installa
22、tion in specic luminaires. 2.2 Undated references 2.2.1 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. 2.3 Units of measurement 2.3.1 Values stated without parentheses are th
23、e requirement. Values in parentheses are explanatory or approximate information. 2.3.2 Unless indicated otherwise, all voltage and current values mentioned in this standard are root-mean-square (rms). 2.4 Electrical rating 2.4.1 The input is to be rated a nominal 120 volts; the secondary shall be ra
24、ted 15 volts ac or less or 30 volts dc or less and 1000 volt-amperes or less. JUNE 19, 2013 UL 379 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 2.5 DC output units 2.5.1 Each output of a direct current (DC) power unit for supply of under
25、water luminaires for fountains, pools, and spas shall comply with items (a) and (b) below. a) The circuit shall be rated 30 VDC or less. The maximum output voltage in normal use and under any single fault condition shall not exceed 30 VDC. b) Under all combinations of constant resistive load and sin
26、gle fault conditions, the peak-to- peak value of ripple voltage and ripple current measured on the circuit shall be not more than 10 percent of the measured DC value. 3 Components 3.1 General 3.1.1 A component of a product covered by this Standard shall: a) Comply with the requirements for that comp
27、onent as specied in this Section; b) Be used in accordance with its rating(s) established for the intended conditions of use; c) Be used within its established use limitations or conditions of acceptability; and d) Comply with the applicable requirements of this end product Standard. 3.1.2 A compone
28、nt of a product covered by this Standard is not required to comply with a specic component requirement that: a) Involves a feature or characteristic not required in the application of the component in the product; b) Is superseded by a requirement in this Standard; or c) Is separately investigated w
29、hen forming part of another component, provided the component is used within its established ratings and limitations. 3.1.3 Specic components are incomplete in construction features or restricted in performance capabilities. Such components are intended for use only under limited conditions, such as
30、 certain temperatures not exceeding specied limits, and shall be used only under those specic conditions. 3.1.4 A component that is also intended to perform other functions such as overcurrent protection, ground-fault circuit-interruption, surge suppression, any other similar functions, or any combi
31、nation thereof, shall comply additionally with the requirements of the applicable UL standard(s) that cover devices that provide those functions. JUNE 19, 2013 UL 379 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3.1.5 Any component used
32、shall not present the risk of re, electric shock or casualty hazards. 3.1.6 Components shall be suitable for the intended use and installation environment. This suitability shall assume the following installation parameters: a) Outdoor, Pollution Degree 3 installations. b) Overvoltage Category III a
33、s specied in the Standard for Insulation Coordination Including Clearances and Creepage Distances for Electrical Equipment, UL 840. 3.2 Fuseholders 3.2.1 Fuseholders shall comply with the Standard for Fuseholders Part 1: General Requirements, UL 4248-1, and: a) The Standard for Fuseholders Part 4: C
34、lass CC, UL 4248-4, or b) The Standard for Fuseholders Part 5: Class G, UL 4248-5, or c) The Standard for Fuseholders Part 6: Class H, UL 4248-6, or d) The Standard for Fuseholders Part 8: Class J, UL 4248-8, or e) The Standard for Fuseholders Part 9: Class K, UL 4248-9, or f) The Standard for Fuseh
35、olders Part 11: Type C (Edison Base) and Type S Plug Fuse, UL 4248-11, or g) The Standard for Fuseholders Part 12: Class R, UL 4248-12, or h) The Standard for Fuseholders Part 15: Class T, UL 4248-15. 3.3 Fuses 3.3.1 Fuses shall comply with the Standard for Low-Voltage Fuses Part 1: General Requirem
36、ents, UL 248-1, and: a) The Standard for Low-Voltage Fuses Part 2: Class C Fuses: UL 248-2, or b) The Standard for Low-Voltage Fuses Part 3: Class CA and CB Fuses: UL 248-3, or c) The Standard for Low-Voltage Fuses Part 4: Class CC Fuses: UL 248-4, or d) The Standard for Low-Voltage Fuses Part 5: Cl
37、ass G Fuses: UL 248-5, or e) The Standard for Low-Voltage Fuses Part 6: Class H Non-Renewable Fuses: UL 248-6, or f) The Standard for Low-Voltage Fuses Part 7: Class H Renewable Fuses: UL 248-7, or g) The Standard for Low-Voltage Fuses Part 8: Class J Fuses: UL 248-8, or h) The Standard for Low-Volt
38、age Fuses Part 9: Class K Fuses: UL 248-9, or JUNE 19, 2013 UL 379 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL i) The Standard for Low-Voltage Fuses Part 10: Class L Fuses: UL 248-10, or j) The Standard for Low-Voltage Fuses Part 11: Pl
39、ug Fuses: UL 248-11, or k) The Standard for Low-Voltage Fuses Part 12: Class R Fuses: UL 248-12, or l) The Standard for Low-Voltage Fuses Part 15: Class T Fuses: UL 248-15, or 3.4 Printed wiring boards 3.4.1 Printed wiring boards shall comply with the Standard for Printed-Wiring Boards, UL 796. A pr
40、inted wiring board shall have a temperature rating corresponding to the maximum temperature on the board during the Heating Test, Section 23. Unless wholly in a Class 2 circuit, it shall comply with the direct support of live parts requirements in UL 796. 3.5 Terminal blocks 3.5.1 Terminal blocks sh
41、all comply with: a) The Standard for Terminal Blocks, UL 1059, or b) The Standard for Low-Voltage Switchgear and Controlgear Part 7-1: Ancillary Equipment Terminal Blocks for Copper Conductors, UL 60947-7-1, or c) The Standard for Low-Voltage Switchgear and Controlgear Part 7-2: Ancillary Equipment
42、Protective Conductor Terminal Blocks for Copper Conductors, UL 60947-7-2, or d) The Standard for Low-Voltage Switchgear and Controlgear Part 7-3: Ancillary Equipment Safety Requirements for Fuse Terminal Blocks, UL 60947-7-3. The UL 60947-7-x Standards are used in conjunction with the Standard for L
43、ow-Voltage Switchgear and Controlgear Part 1: General Rules, UL 60947-1. 3.5.2 Terminal blocks shall be suitable for the wire size, type (solid or stranded), conductor material (copper or aluminum), voltage and current of the intended use. 3.5.3 Terminal blocks intended for eld wiring shall comply w
44、ith the Standard for Wire Connectors, UL 486A-486B, or the Standard for Equipment Wiring Terminals for Use with Aluminum and/or Copper Conductors, UL 486E. JUNE 19, 2013 UL 379 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3.6 Wire connec
45、tors 3.6.1 Wire connectors shall be suitable for the wire size, type (solid or stranded), conductor material (copper or aluminum), number of conductors terminated, and the voltage and current of the intended use. They shall be applied per the installation instructions of the wire connector manufactu
46、rer. 3.6.2 Wire connectors shall comply with the Standard for Wire Connectors, UL 486A-486B, or the Standard for Equipment Wiring Terminals for Use with Aluminum and/or Copper Conductors, UL 486E 3.7 Quick-connect wire connectors 3.7.1 Quick-connect type wire connectors shall be suitable for the wir
47、e size, type (solid or stranded), conductor material (copper or aluminum), number of conductors terminated, and the voltage and current of the intended use. They shall be applied per the installation instructions of the wire connector manufacturer. 3.7.2 Quick-connect type wire connectors shall comp
48、ly with the Standard for Electrical Quick-Connect Terminals, UL 310. CONSTRUCTION 4 Output Circuit Isolation 4.1 Each output circuit shall be electrically isolated from the power unit supply circuit. Each output circuit shall not be bonded to the supply circuit equipment grounding conductor or to de
49、ad metal bonded to the supply circuit equipment grounding conductor. 4.2 Where a transformer is being used to provide isolation, the primary and secondary windings shall be: a) Separated by a shield of copper that is at least 0.002 inch (0.051 mm) thick or brass minimum 0.005 inch (0.127 mm); or b) Comply with the Standard for Low-Voltage Transformers Part 3: Class 2 and Class 3 Transformers, UL 5085-3; or c) Comply with the Standard for Class 2 Power Units,
