1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1283 Electromagnetic Interference FiltersUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR
2、FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Electromagnetic Interference Filters, UL 1283 Sixth Edition, Dated February 2, 2015 SUMMARY OF TOPICS This new edition of ANSI/UL 1283 is being issued to incorporate the following changes in requirements: Revi
3、sion of requirements for capacitors The new/revised requirements are substantially in accordance with Proposal(s) on this subject dated July 11, 2014 and November 14, 2014. 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. The requirements in this Standard are now in effect, except for those paragraphs
8、, sections, tables, gures, and/or other elements of the Standard having future effective dates 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 SUPE
9、RSEDED REQUIREMENTS notice. The following table lists the future effective dates with the corresponding reference. FEBRUARY 2, 2015 UL 1283 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Future Effective Dates References March 30, 2015 P
10、aragraph 17.5 FEBRUARY 2, 2015 UL 1283 tr2UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL FEBRUARY 2, 2015 1 UL 1283 Standard for Electromagnetic Interference Filters First Edition October, 1980 Second Edition March, 1984 Third Edition June,
11、 1993 Fourth Edition June, 1998 Fifth Edition November, 2005 Sixth Edition February 2, 2015 This ANSI/UL Standard for Safety consists of the Sixth edition including revisions through February 2, 2015. The most recent designation of ANSI/UL 1283 as an American National Standard (ANSI) occurred on Feb
12、ruary 2, 2015. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page, or effective date information. The Department of Defense (DoD) has adopted UL 1283 on August 2, 1989. The publication of revised pages or a new edition of this Standard will not invalidate the
13、 DoD adoption. 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 copyrighted by UL. Neither
14、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 UNDERWRITERS LABORATORIES INC. ANSI/UL 1283-2015UL COPYRIGHTED MATERI
15、AL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL FEBRUARY 2, 2015 ELECTROMAGNETIC INTERFERENCE FILTERS - UL 1283 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION
16、 1 Scope .5 2 Components 5 3 Units of Measurement .6 4 Undated References 6 5 Glossary .6 CONSTRUCTION 6 General 7 7 Appliance Filters 7 8 Frame and Enclosure 7 8.1 General .7 8.2 Metal enclosures .9 8.3 Nonmetallic enclosures 9 9 Corrosion Protection .10 10 Supply Connections .10 10.1 Facility lter
17、s .10 10.2 Cord-connected lters .12 10.3 Direct-plug-in type 12 11 Power Supply Cord Bushings 14 12 Strain Relief 14 13 Receptacles 15 14 Overcurrent Protection 15 15 Switches and Controllers 15 16 Facility Filter Mounting 16 17 Insulating Materials .16 18 Live Parts 17 19 Accessibility of Live Part
18、s 17 20 Flammability Characteristics of Polymeric Materials .20 21 Wiring .20 22 Spacings 21 23 Grounding .24 24 Capacitors .25 PERFORMANCE 25 General 26 26 Leakage Current 27 27 Temperature .31 28 Dielectric Voltage-Withstand .33 29 Insulation Resistance 35 30 Overload .36 31 Endurance .36 32 Abnor
19、mal Operation .37 33 Grounding Continuity 38 34 Strain Relief 39 35 Direct Plug-In Units Mechanical Strength Tests .39 35.1 Blade secureness 39 FEBRUARY 2, 2015 ELECTROMAGNETIC INTERFERENCE FILTERS - UL 1283 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PER
20、MISSION FROM UL 35.2 Impact 39 35.3 Resistance to crushing 40 36 Pullout, Bending, and Twisting .40 37 Capacitance 40 37.1 Capacitor discharge 40 37.2 Capacitance measurement 41 38 Ignition Through Bottom Openings 42 38.1 General .42 38.2 Hot, aming oil .42 39 Withstand 43 40 Instrumentation and Cal
21、ibration of High-Capacity Circuits 46 40.1 General .46 40.2 Current and power factor determination (5000 and 10,000 A) 46 40.3 Galvanometers .47 40.4 Circuit calibration .48 40.5 Current and power factor determination (over 10,000 A) 49 40.6 Recovery voltage .51 40.7 Shunting resistance 51 MANUFACTU
22、RING AND PRODUCTION TESTS 41 Dielectric Voltage-Withstand .52 42 Grounding Continuity 53 RATINGS 43 Details .53 MARKINGS 44 Details .54 45 Installation Instructions 57 APPENDIX A Standards for ComponentsA1 FEBRUARY 2, 2015 ELECTROMAGNETIC INTERFERENCE FILTERS - UL 1283 4UL COPYRIGHTED MATERIAL NOT A
23、UTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover electromagnetic interference (EMI) lters installed on, or connected to, 1000 V or lower potential circuits, 50 60 Hz, or up to 1500V dc, and installed in accordance with th
24、e National Electrical Code. 1.2 These requirements cover lters used to attenuate unwanted radio-frequency signals (such as noise or interference) generated from electromagnetic sources. These lters consist of capacitors and inductors used alone or in combination with each other and may be provided w
25、ith resistors. 1.3 These requirements cover facility lters, cord-connected lters, direct plug-in lters, and appliance lters. 1.4 These requirements do not cover transient-voltage surge suppressors (that is, devices for repeated limiting of voltage surges on power circuits such as silicone avalanche
26、diodes, metal oxide varistors, gas tubes, spark-gaps, etc). Transient Voltage Surge Suppressors are investigated under the Standard for Surge Protective Devices, UL 1449. These requirements also do not cover EMI lters for outdoor use. 1.5 These requirements do not cover direct plug-in products and c
27、ord-connected products provided with more than two receptacles. A direct plug-in product employing more than two receptacles and having an EMI lter is investigated under the requirements for current taps in the Standard for Attachment Plugs and Receptacles, UL 498. A cord-connected product employing
28、 more than two receptacles and having an EMI lter is investigated under the Standard for Relocatable Power Taps, UL 1363. The EMI lter part of these products would be investigated to determine compliance with the requirements in this standard in so far as they apply. 2 Components 2.1 Except as indic
29、ated 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 generally used in the products covered by this Standard. 2.2 A component is not required to comply with a specic requiremen
30、t 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. 2.3 A component shall be used in accordance with its rating established for the intended conditions of use.
31、 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 certain temperatures not exceeding specied limits, and shall be used only under those specic conditions. FEBRUARY 2, 2
32、015 ELECTROMAGNETIC INTERFERENCE FILTERS - UL 1283 5UL 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 approximate inform
33、ation. 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 edition of that code or standard. 5 Glossary 5.1 APPLIANCE FILTER A lter intended to be factory-installed as a component part of
34、end-use appliances or equipment connected to (supplied by) the branch circuits of a building wiring system. Included in this category are lters installed in medical and dental equipment, office appliances and business equipment, data processing equipment, and household appliances such as mixers, vac
35、uum cleaners, hand tools, and the like. 5.2 CORD-CONNECTED FILTER A lter provided with a supply cord having an attachment plug for connecting the lter to a branch-circuit receptacle. It is also provided with one or two receptacles for distribution of the ltered voltage to an external (appliance or o
36、ther equipment) load. 5.3 DIRECT PLUG-IN FILTER A lter provided with blades at the lter body that plug directly into a 15 A, 120 V branch-circuit receptacle. It is also provided with one or two receptacles for the distribution of the ltered voltage to an external (appliance or other equipment) load.
37、 5.4 FACILITY FILTER A lter installed as part of the service, feeders, or branch circuitry of a building wiring system. 5.5 FIELD-WIRING TERMINAL Any terminal to which a supply conductor or other wire can be connected by an installer in the eld. However, if a wire is provided as part of the lter and
38、 a pressure terminal, connector, soldering lug, crimped eyelet, or other means for making the eld connection is factory assembled to the wire, the combination of the wire and the connecting means is not considered to be a eld-wiring terminal. 5.6 OPPOSITE POLARITY A difference in potential between t
39、wo points, such that shorting of these two points would result in a condition involving an overload, rupturing of printed wiring-board tracks, components, or fuses, and similar results. FEBRUARY 2, 2015 ELECTROMAGNETIC INTERFERENCE FILTERS - UL 1283 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHE
40、R REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONSTRUCTION 6 General 6.1 Only materials that are acceptable for the particular use shall be used in an EMI lter. Every lter shall be made and nished with the degree of uniformity and grade of workmanship that are practicable in a well-equip
41、ped factory. 7 Appliance Filters 7.1 An appliance lter is to be investigated on the basis of its compliance with the construction requirements in the sections of this Standard as indicated in Table 7.1. Table 7.1 Applicable requirements for appliance lters Requirements for Section Corrosion Protecti
42、on 9 Supply Connections 10 a Receptacles 13 a Overcurrent Protection 14 a Switches and Controllers 15 a Insulating Materials 17 Live Parts 18 Flammability Characteristics of Polymeric Materials 20 Wiring 21 Spacings 22 Grounding 23 Capacitors 24 a The requirements in the section are applicable only
43、if the lter is constructed using the features covered in this section. 8 Frame and Enclosure 8.1 General 8.1.1 The following conditions indicate the maximum acceptable size for any opening in the enclosure of a lter (other than an appliance lter) including a hole, louver, or an opening protected by
44、means of wire screening, expanded metal, or a perforated cover: a) A oor-mounted lter over 48 inches (1.22 m) high and a table- or desk-mounted lter shall have no top openings having a maximum linear dimension (in any direction) greater than 3/16 inch (4.8 mm). Any other type of lter shall have no t
45、op openings. b) Bottom openings of perforated metal not larger than described in Table 8.1 are acceptable. Other patterns and hole sizes are acceptable if they comply with the ignition test described in Ignition Through Bottom Openings, Section 38. c) Any opening in other than the bottom or top shal
46、l not permit the entrance of a rod greater than 20 mm (25/32 inch) in diameter. See also Accessibility of Live Parts, Section 19. FEBRUARY 2, 2015 ELECTROMAGNETIC INTERFERENCE FILTERS - UL 1283 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM U
47、L Table 8.1 Acceptable perforated-metal bottom plates Nominal thickness inch/mm Minimum thickness inch/mm Maximum diameter of holes -inch/mm Minimum spacing of holes center to center inch/mm 0.030/0.76 0.026/0.66 0.045/1.14 0.067/1.70 (233 holes per inch 2 or 36 holes per cm 2 ) 0.030/0.76 0.026/0.6
48、6 3/64 0.047/1.19 3/32 (0.094)/2.36 0.035/0.89 0.032/0.81 0.075/1.91 1/8 (0.125)/3.18 (72 holes per inch 2 or 11 holes per cm 2 ) 0.040/1.02 0.036/0.91 1/16 (0.063)/1.60 7/64 (0.109)/2.77 0.040/1.02 0.036/0.91 5/64 (0.078)/1.98 1/8 (0.125)/3.18 8.1.2 If screening is used as part of the enclosure, th
49、e wires shall not be smaller than 16 AWG (1.29 mm nominal diameter) for screen openings 1/2 square inch (323 mm 2 ) or less in area, and shall not be smaller than 12 AWG (2.05 mm nominal diameter) for larger screen openings. Sheet metal used for expanded-metal mesh and perforated sheet metal shall have a thickness of not less than 0.042 inch (1.07 mm) for mesh openings or perforations 1/2 square inch (323 mm 2 ) or less in area, and shall have a thickness of not less
