UL 962A-2016 UL Standard for Safety Furniture Power Distribution Units (Fourth Edition Reprint with revisions through and including October 10 2017).pdf

1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 962A Furniture Power Distribution Units STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL N

2、OT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Furniture Power Distribution Units, UL 962A Fourth Edition, Dated February 22, 2016 Summary of Topics Revision pages have been issued for the Standard for Safety for Furniture Power Distribut

3、ion Units, UL 962A, to incorporate the following proposals: Requirements for a Class 2 lead. Furniture power distribution unit (FPDU) provided with a Class A portable GFCI. Furniture power distribution unit (FPDU) removal of the twin carbon arc equipment for UV testing. The new and revised requireme

4、nts are substantially in accordance with Proposal(s) on this subject dated October 27, 2016 and January 23, 2017. 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 ma

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9、UARY 28, 2017 UL 962A tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL FEBRUARY 28, 2017 UL 962A tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL February 22

10、, 2016 (Title Page Reprinted: February 28, 2017) 1 UL 962A Standard for Furniture Power Distribution Units First Edition September, 2003 Second Edition December, 2008 Third Edition September, 2014 Fourth Edition February 22, 2016 Comments or proposals for revisions on any part of the Standard may be

11、 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 printed nor electronic copy of a Standard should be altered in any way. All of ULs

12、 Standards and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2017 UNDERWRITERS LABORATORIES INC.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL FEBRUARY 28, 201

13、7 FURNITURE POWER DISTRIBUTION UNITS - UL 962A 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .6 2 General 7 2.1 Components .7 2.2 Use.7 3 Units of Measurement .8 4 Undated References 8 5

14、Glossary .8 CONSTRUCTION 6 Enclosure .8B 6.1 General 8B 6.2 Metallic .11 6.3 Nonmetallic .12 7 Mechanical Assembly 12 8 Accessibility of Live Parts .13 9 Mounting Means .15 10 Corrosion Protection 15 11 Insulating Materials .15 12 Power-Supply Cord .16 12.1 General .16 12.1A Class 2 lead 18 12.2 Bus

15、hings 18 12.3 Strain Relief .18 12.4 Push Back Relief .18 13 Receptacles 18A 14 Supplementary Protection 18B 15 Switches .21 16 Live Parts 21 17 Internal Wiring 22 18 Spacings 23 19 Clearance and Creepage Distances Isolated Secondary Circuits 24 20 Printed-Wiring Boards .25 21 Separation of Circuits

16、 .26 21A Low Voltage Charging and Isolated Secondary Output Circuits 26 22 Grounding .26 22.1 General .26 22.2 Bonding .27 23 Low Voltage Charging and Isolated Secondary Output Circuits .28 PERFORMANCE 24 General 29 25 Motorized or Self-Propelled Movable Parts .29 26 Temperature Test .30 27 Dielectr

17、ic Voltage-Withstand Test .32 28 Leakage Current Test .33 28.1 General .33 FEBRUARY 28, 2017 FURNITURE POWER DISTRIBUTION UNITS - UL 962A 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 28.2 Leakage current after humidity conditioning 36 29

18、 Grounding Continuity Test .36 30 Fault Current Test 37 30.1 General .37 30.2 Calibration of test circuits 37 31 Overcurrent Test 38 32 Mounting Hole Barrier Tests .39 32.1 General .39 32.2 Mounting hole barrier impact test .40 32.3 Mounting hole barrier probe test .40 33 Strain Relief Test 40A 34 P

19、ush Back Relief Test .40B 35 Impact Tests 40B 35.1 General 40B 35.2 Drop impact test .43 35.3 Steel sphere impact test 44 35.4 Low-temperature steel sphere impact test .47 36 Crushing Test 47 37 Adequacy of Mounting Test 48 38 Retractable Force Test 49 39 Mold Stress-Relief Distortion Test .49 40 Sp

20、ill Test 50 41 Accessibility Tests 51 41.1 Enclosure accessibility test 51 41.2 Accessibility of live parts test 51 42 Test for Permanence of Cord Tag 53 42.1 General .53 42.2 Test conditions .53 42.3 Test method .54 43 Pinch Force Evaluation Test .55 44 Normal Operation Test 55 45 Cycling Test 56 4

21、6 Flexing Endurance Test .57 MANUFACTURING AND PRODUCTION-LINE TESTS 47 Dielectric Voltage-Withstand Test .58 48 Grounding Continuity Test .60 RATINGS 49 Details .60 MARKINGS 50 Details .60 INSTRUCTIONS 51 Details .63 FEBRUARY 28, 2017 FURNITURE POWER DISTRIBUTION UNITS - UL 962A 4UL COPYRIGHTED MAT

22、ERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL SUPPLEMENT SA - FURNITURE POWER DISTRIBUTION UNITS INCORPORATING BATTERIES INTRODUCTION SA1 Scope SA1 SA2 Glossary SA1 SA3 General SA2 SA4 Battery Chargers and Circuits .SA2 CONSTRUCTION SA5 Batteries SA2 SA5.1

23、General SA2 SA5.2 Non-replaceable batteries SA3 SA5.3 Technician replaceable batteries SA3 SA5.4 User replaceable batteries SA3 SA5.5 Battery packs .SA3 SA5.6 Lithium-ion battery cells or packs SA3 SA6 Battery Compartments .SA4 SA7 Battery Circuits SA5 SA8 Battery Charging SA5 PERFORMANCE SA9 Temper

24、ature Test SA5 SA9.1 General SA5 SA9.2 Temperature test method I .SA6 SA9.3 Temperature test method II .SA6 SA9.4 Temperature test method III SA6 SA10 Discharge Test .SA6 SA11 Lithium-ion Batteries SA7 SA11.1 Lithium-ion battery abnormal tests SA7 SA11.2 Impact tests .SA8 SA12 Markings SA9 SA13 Inst

25、allation and Operation Instructions .SA9 APPENDIX A Standards for ComponentsA1 FEBRUARY 22, 2016 FURNITURE POWER DISTRIBUTION UNITS - UL 962A 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover

26、indoor use cord and plug connected furniture power distribution units (FPDU) rated 250 V AC or less and 20 Amperes or less. An FPDU may include an integral Class 2 power supply with an integral output lead and/or connector(s) output and may include receptacles with integral power supplies with Class

27、 2 output connectors. FPDUs are for xed mounting to furnishings as a power supply connection for cord and plug connected electrical utilization equipment in accordance with the National Electric Code, NFPA 70. 1.2 A cord and plug connected product as described in 1.1 with less than three receptacle

28、outlets and provided with a Luminaire is covered under the Standard for Portable Electric Luminaires, UL 153. 1.3 A cord and plug connected product as described in 1.1 with less than three receptacle outlets that employs an electromagnetic interference lter is covered under the Standard for Electrom

29、agnetic Interference Filters, UL 1283. 1.4 A cord and plug connected product as described in 1.1 with less than three receptacle outlets that employs a surge protective device (SPD) is covered under the Standard for Surge Protective Devices, UL 1449. 1.5 A cord and plug connected product as describe

30、d in 1.1 that employs ground-fault protection is covered under the requirements for portable GFCIs in the Standard for Ground-Fault Circuit Interrupters, UL 943. 1.6 This standard does not cover FPDUs intended for use with medical equipment. 1.7 These requirements cover FPDUs provided with isolated

31、secondary circuits. 1.8 These requirements cover FPDUs provided with batteries located in isolated secondary circuits. 1.9 A product that has a battery backup feature or other uninterruptible power supply equipment located in the Primary Circuit shall comply with the applicable requirements in the S

32、tandard for Uninterruptible Power Supply Equipment, UL 1778. 1.10 A FPDU with three or more receptacle outlets may employ a Light Emitting Diode (LED) Luminaire. FEBRUARY 28, 2017 FURNITURE POWER DISTRIBUTION UNITS - UL 962A 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIB

33、UTION WITHOUT PERMISSION FROM UL 2 General 2.1 Components 2.1.1 Except as indicated in 2.1.2, a component of products covered by this standard shall comply with the requirements for that component. See Appendix A for a list of standards covering components used in the products covered by this standa

34、rd. 2.1.2 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 standard. 2.1.3 A component shall be used in

35、accordance with its rating established for the intended conditions of use. 2.1.4 Specic components are incomplete in construction features or restricted in performance capabilities. Such components are intended for use only under limited conditions, such as certain temperatures not exceeding specied

36、 limits, and shall be used only under those specic conditions. 2.1.5 A FPDU that incorporates a LED Luminaire and LED components and subassemblies shall comply with the applicable requirements of the Standard for Light Emitting Diode (LED) Equipment for Use in Lighting Products, UL 8750. 2.2 Use 2.2

37、.1 A FPDU is intended to be connected to a permanently installed branch circuit receptacle outlet. 2.2.2 A FPDU is intended to be mounted to an indoor use furnishing. 2.2.3 FPDU are not intended to be series connected (daisy chained) to other FPDUs to relocatable power taps or to extension cords. FE

38、BRUARY 22, 2016 FURNITURE POWER DISTRIBUTION UNITS - UL 962A 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3 Units of Measurement 3.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approxim

39、ate information. 3.2 Unless otherwise indicated, all voltage and current values mentioned in this standard are root-mean-square (rms). 4 Undated 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 e

40、dition of that code or standard. 5 Glossary 5.1 For the purpose of this standard the following denitions apply. 5.2 ATTACHMENT PLUG A male contact device for the temporary connection of a exible cord or cable to a receptacle outlet or cord connector. 5.2.1 CLASS 2 LEAD Consists of a factory-made, po

41、wer-limited cable with an output connector at one end. The other end is secured within the housing or enclosure of the FPDU. The output connector is intended for connection to the Class 2 separable interface (such as Universal Serial Bus USB connectors). 5.2.2 CLASS 2 SEPARABLE INTERFACE A separable

42、 component containing Class 2 low-voltage connector(s) only (such as Universal Serial Bus (USB) connectors). 5.3 CORD CONNECTOR A female contact device assembled or molded on exible cord to allow a detachable electrical connection to an attachment plug. 5.4 FIXED FURNISHING Intended to be permanentl

43、y connected electrically to a source of supply. 5.5 FURNITURE POWER DISTRIBUTION UNIT (FPDU) An electrical enclosure provided with an attached power supply cord and attachment plug for connection to a permanently installed branch circuit receptacle outlet. The FPDU is provided with a mounting means

44、for attachment to a furnishing. The electrical enclosure may be provided with one or more receptacle outlets. The FPDU may also be provided in any combination of the following congurations: a) The electrical enclosure connected to the power supply cord and attachment plug may be supplied with up to

45、six lengths of exible cord not exceeding 6 feet in length; each length shall be terminated with a maximum of 3 receptacle outlets within an electrical enclosure or 3 cord connectors. Refer to Clause 13.6 limiting the total number of outlets, Table 12.1 for overload requirements and 12.1.8 for interc

46、onnecting cord requirements. b) Provided with supplementary overcurrent protection. c) Provided with manual or automatic switch(es) such as an integral appliance timer to control all or some of the receptacle outlets. d) Provided with indicator lights. FEBRUARY 28, 2017 FURNITURE POWER DISTRIBUTION

47、UNITS - UL 962A 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL e) When provided with three or more receptacle outlets the FPDU may be provided with a surge protective device (SPD) or an electromagnetic interference (EMI) lter. f) A FPDU ma

48、y employ non-electrical decorative features. The decorative features may include various shapes such as rocks, birds and animals, etc. g) A FPDU may employ telephone equipment and communication circuit protectors. h) A FPDU may employ an antenna discharge unit or provide antenna connections for tele

49、visions and video products. i) When provided with three or more receptacle outlets the FPDU may be provided with LED (Light Emitting Diode) Luminaire(s). j) A FPDU may be provided with a wireless charging circuit. k) Provided with isolated secondary circuits. l) Provided with batteries located in isolated secondary circuits. See UL 962A Supplement SA Furniture Power Distribution Units Incorporating Batteries. m) Provided with an integral Class 2 lead and mating Class 2 separable interface, or