1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULUNDERWRITERS LABORATORIES INC. CERTIFICATION REQUIREMENT DECISIONThis Certification Requirement Decision is prepared and published by Underwriters Laboratories Inc.(UL). It is normative for the a
2、pplicable UL Product Certification Program(s); however, it is currently notpart of the UL Standard(s) referenced below.Product Category (CCN): OOLVStandard Number: UL 1993Standard Title: Standard for Self-Ballasted Lamps and Lamp AdaptersEdition Date: December 4, 2012Edition Number: 4Section / Parag
3、raph Reference: Supplement SD (New)Subject: Requirements for evaluating LED lamps as direct replacements for specifichigh intensity discharge (HID) lampsDECISION:(Add to Clause 2.1, “Normative References” for ANSI)ANSI IEEE C62.41, IEEE Recommended Practice on Surge Voltages in Low-Voltage AC Power
4、CircuitsANSI NEMA ANSLG C78.389, High-Intensity Discharge Lamps Methods of Measuring CharacteristicsANSI NEMA ANSLG C78.40, Specifications for Mercury LampsANSI NEMA ANSLG C78.42, High Pressure Sodium LampsANSI NEMA ANSLG C78.43, Single-Ended Metal-Halide LampsANSI NEMA C82.5, Reference Ballasts Hig
5、h-Intensity-Discharge and Low-Pressure Sodium LampsSUPPLEMENT SD - ADDITIONAL REQUIREMENTS FOR LED LAMPS INTENDED AS DIRECTREPLACEMENTS FOR HIGH INTENSITY DISCHARGE (HID) LAMPSSD1 Special TerminologySD1.1 The following definitions apply:SD1.2 DEVICE A generic term for an LED lamp.SD1.3 (LAMP) CURREN
6、T LIMIT The nominal operating current of the target lamp after seasoning, aspublished by ANSI. On ANSI lamp data sheets, this is usually found under Operating requirements at 100hours Lamp current (A, rms).SD1.4 (LAMP) POWER LIMIT The nominal operating power of the target lamp after seasoning, aspub
7、lished by ANSI. On ANSI lamp data sheets, this is usually found under Operating requirements at 100hours Lamp wattage (W)”.SD1.5 TARGET LAMP(S) The HID lamp(s) that the device is intended to replace.SD2 GeneralUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PER
8、MISSION FROM ULSD2.1 The construction, test and marking requirements in Supplement SD supplement the requirementsin the main body of this Standard.SD2.2 These requirements apply to devices intended as direct substitutes for one or more HID lamps,such as those defined in ANSI NEMA ANSLG C78.40, C78.4
9、2 and C78.43.SD2.3 These requirements do not apply to devices that, in order to function as intended, require aninstaller to electrically alter an HID luminaire. Such alterations include removing the ballast or re-wiring thelampholders to bypass the ballast.SD2.4 For the purposes of this Supplement,
10、 the following assumptions apply:a) The output of an HID ballast is considered both a risk of fire and risk of electric shock andnot isolated from the mains;b) The device may be installed in open luminaires without additional enclosures or diffusers;andc) Double-ended devices will be powered from an
11、d supported by the luminaires existinglampholders, exclusively.SD3 ConstructionSD3.1 The device shall comply with all electrical and mechanical construction requirements in UL 1993applicable to LED lamps.SD3.2 When evaluating electrical spacings between the devices base contacts, or between any base
12、contact and exposed dead metal, clearance and creepage distances shall comply with UL 1993 but be noless than those specified by the applicable ANSI lamp base datasheet. These distances shall be at least3mm (0.118”) for E26 bases and at least 5mm (0.200”) for E39 and EX39 bases.SD3.3 With regard to
13、the weight and moment requirements in Clauses 5.4 and SA5.4, the maximummoment is not defined for devices with fixed alignments intended for vertical use only and marked perClause SD5.5.SD4 TestsSD4.1 GeneralSD4.1.1 Table SD4.1 tabulates the tests applicable to these devices. All paragraphs referenc
14、ed below arefrom UL 1993. See also Clause SD4.2.STANDARD NUMBER: UL 1993 -2-UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULTable SD4.1Test plan summaryTest description Reference Number and description of samplesaInput measurementsb8.2, SA8.2,
15、 SD4.2.2 1 sample of device.Leakage-currentb,c8.4 1 sample of device; can be same as used for inputmeasurements.Temperatureb8.5, SA8.5 1 sample of device. If the device is normally potted, it isnecessary to prepare a sample with thermocouples attachedprior to potting. If acceptable to all parties co
16、ncerned, thesample for test can be unpotted.Dielectric voltage withstand 8.6, SA8.6, SD4.2.4 1 sample of the device can be the same as used for inputmeasurements, but not the sample for temperature test as thethermocouples can interfere with the test.Drop impact 8.8, SA8.8 One sample of each enclosu
17、re type can be subjected to 3drops, or if suitable to all concerned, three samples each ofwhich can be subjected to one drop.Mold-stress relief conditioning 8.9 1 sample of each enclosure type; may be same as used indrop test, if undamaged.Deflection 8.10 1 sample of each enclosure type; may be same
18、 as used indrop test, if undamaged.Humidity conditioning 8.13 For damp location rating, 1 sample; may be used in previoustests.Water spray 8.14 For wet location rating and device is not potted, 1 sample ofeach enclosure type; can be the same as used in previoustests if intact and undamaged.Cold impa
19、ct 8.15 For wet location rating, three samples of each enclosure type.LED lamp and driver abnormalconditionsbSA8.22, SD4.2.3 1 sample for each component fault, or less if it can bedetermined that previous faults did not damage the sample.Potted samples would need to have additional wires to attachto
20、 internal connections so that the short condition can easilybe created. Devices that are normally potted can be testedwithout potting if agreeable to all parties concerned.Voltage pulse withstandbSD4.3 1 sample of device.aThis table is a summary of test samples typically needed. Actual number of sam
21、ples may vary where agreeable to all partiesconcerned.bThe sample shall be powered from a reference ballast, see Clauses SD4.1.2 and SD4.1.3.cFor this test, the reference ballast shall be electrically isolated from the branch circuit.SD4.1.2 When a test requires the device to be energized from its i
22、ntended supply source, it shall beenergized from a 60 Hz reference ballast. The reference ballast shall comply with all pertinentrequirements of ANSI NEMA C82.5.SD4.1.3 The reference ballast shall be adjusted for the voltage, current and power characteristics definedby the lamp standard of the targe
23、t lamp. See SD2.2.SD4.1.4 The electrical characteristics of the device shall be measured in accordance with ANSI NEMAANSLG C78.389 with the following variations:a) Lamp seasoning and pre-burning is not required; andb) Ambient temperature during testing shall be 25 5C.SD4.2 Additional test criteriaST
24、ANDARD NUMBER: UL 1993 -3-UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULSD4.2.1 The criteria outlined in Clauses SD4.2.2 SD4.2.6 are in addition to the requirements of thespecified tests.SD4.2.2 When conducting the Input Measurements test, t
25、he device:a) Shall not exceed its current limit or power limit by more than 5%;b) Shall not induce an unacceptable DC component on the reference ballast, as defined inclause SD4.2.6; andc) If a lesser reference ballast input voltage produces more severe test results, the test shall beconducted at th
26、at voltage.SD4.2.3 When conducting the LED lamp and driver abnormal conditions test, the device:a) Shall not exceed its current limit or power limit by more than 5% for more than 1 minuteafter the application of any fault;b) Shall not induce an unacceptable DC component on the reference ballast for
27、more than 1minute after the application of any fault, as defined in clause SD4.2.6; andc) If a lesser reference ballast input voltage produces more severe test results, the test shall beconducted at that voltage.SD4.2.4 When conducting the Dielectric Voltage-Withstand test between the devices base c
28、ontacts andeither its accessible dead metal parts or the foil wrapped around its openings, the test potential value shallbe no less than the maximum pulse height specified for ignitors on the HID lamp datasheet for thepulse-start version of the target lamp.Example: if the HID lamp datasheet allows a
29、 maximum peak pulse of 4 kV, the test potential shall be noless than 4 kV rms.SD4.2.5 Devices shall be able to operate on an HID ballast circuit without exhibiting a risk of fire or electricshock due to repeated ignitor impulses over an extended period of time. Lamps are considered to complywith thi
30、s requirement if they comply with the Voltage Pulse Withstand test in SD4.3.SD4.2.6 A waveforms DC component is considered unacceptable if it exceeds 1% of the waveformsRMS value recorded during Input Measurements. This may be determined by monitoring either voltage orcurrent.Example: For a 100V RMS
31、 waveform, a DC component greater than 1 V would be unacceptable.SD4.3 Voltage pulse withstandSD4.3.1 One sample shall be subjected to ten (10) strikes of the test waveform without exhibiting a riskof fire or electric shock. The sample need not be operable after the test.SD4.3.2 The sample shall be
32、connected as shown in Figure SD1. The HID ballast serving as the supplysource shall be either the reference ballast for the target lamp or a commercially available magneticballast designed to operate the target lamp at its nominal current and power:This is generated text for figtxt.STANDARD NUMBER:
33、UL 1993 -4-UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULSD4.3.3 The generator shall have an input impedance of 30 ohms. The test waveform consists of a 100kHz ring wave compliant with ANSI IEEE C62.41 with regard to rise time, period and de
34、cay rate. Its initialamplitude shall match the maximum pulse height specified for ignitors on the lamp datasheet for thepulse-start version of the target lamp.SD4.3.4 The double-pole switch that isolates the ballast output from the lamp and surge generator isclosed to energize the sample for 5 minut
35、es. Each surge strike shall then be applied as follows:a) The switch is opened and the strike applied within 1 second of de-energization;b) Within 1 second after the strike the switch is closed and the sample energized for 60 5seconds.SD4.3.5 The sample shall subsequently be subjected to the Dielect
36、ric Voltage Withstand test described inSA8.6 and SD4.2.4. This dielectric test is waived if the lamp has no exposed dead metal and no openings.SD5 Markings and InstructionsSD5.1 In addition to the requirements outlined below, the following items of UL 1993, Table 10.1 areapplicable to these LED lamp
37、s: Items14and812,inclusive.SD5.2 A marking shall be provided with the ANSI designation of the target lamp or lamps. See TableSD5.1, item 1.Figure SD1Test Setup for Voltage Pulse WithstandSTANDARD NUMBER: UL 1993 -5-UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOU
38、T PERMISSION FROM ULTable SD5.1List of additional markings and instructions(See Clauses SD5.2 SD5.4)Item Additional Markings and Instructions Text Format Reference1 DIRECT REPLACEMENT FOR _ LAMPSONLY or DIRECT REPLACEMENT FOR THEFOLLOWING LAMPS ONLY: _Verbatim S28-L1 SD5.22a CAUTION RISK OF FIRE. US
39、E ONLY IN PLACE OF HIDLAMPS SPECIFIED ON LAMP LABEL.Verbatim S28-L1 SD5.32b CAUTION RISK OF FIRE. USE ONLY IN PLACE OF HIDLAMPS SPECIFIED ON LAMP LABEL.Verbatim L1 SD5.3DO NOT REMOVE THIS LABEL UNTIL READY FORINSTALLATION.3 CAUTION RISK OF FIRE. IF THE LAMP OR LUMINAIREEXHIBITS UNDESIRABLE OPERATION
40、 (BUZZING,FLICKERING, ETC.), IMMEDIATELY TURN OFF POWER,REMOVE LAMP FROM LUMINAIRE AND CONTACT LAMPMANUFACTURER.Verbatim S28-L2, S28-L1, orbothSD5.44 FOR VERTICAL INSTALLATION ( 20) ONLY S28-L1 SD5.5SD5.3 The device shall be permanently marked to caution users that it is only intended to replace the
41、specific HID lamps that appear on the label. See Table SD5.1, item 2a.Alternatively, this cautionary marking may be conveyed by the text in Table SD5.1, item 2b on afield-removable (temporary) adhesive label if:a) The text is at least 6.4 mm (0.25 inch) tall and printed on a contrasting, opaque back
42、ground;b) The label measures at least 150 mm (6 inches) wide and at least 50 mm (2 inches) tall; andc) The label is secured to the device in such a manner as to block the light from the device ifleft in place after installation.SD5.4 A cautionary marking or instruction shall be provided instructing
43、users to uninstall device if itappears to be causing undesirable operation. See Table SD5.1, item 3.SD5.5 Lamps intended for vertical use only shall be marked accordingly. See Table SD5.1, item 4.RATIONALE FOR DECISION:These requirements were developed to assist manufacturers developing LED lamps in
44、tended as directreplacements for HID lamps.Since these LED lamps are intended to be installed by an end user and not a qualified service person,they need to demonstrate either proper operation or shutdown without the need to rewire or otherwiseadjust the existing luminaire circuit.It is not feasible
45、 to test these LED lamps for compatibility with all previously installed ballasts. Instead,representative electrical and thermal tests would be conducted using a reference ballast circuit as thesupply source for the LED lamp. The reference ballast would comply with all pertinent requirements ofRefer
46、ence Ballasts for HID Lamps, ANSI NEMA C82.5, and be adjusted (tuned) for the HID lamp thatthe LED lamp is intended to replace.STANDARD NUMBER: UL 1993 -6-UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULThe LED lamp would not be permitted to d
47、raw more current nor dissipate more power than the typicalcurrent and power characteristics of the HID lamp it is intended to replace at 100 hours of operation. Toaccount for the wide range of ballast factors that could be encountered, the input voltage to the referenceballast is varied between its
48、rated value and zero to determine the worst-case current operating conditionof the LED lamp.HID ballasts compliant with the Standard for High Intensity Discharge Ballasts, UL 1029, are evaluated forproper operation and safe shutdown during typical HID lamp fault and end-of-life conditions. UL 1029 d
49、oesnot have requirements to determine ballast behavior when an electronic load is connected, or when suchelectronic loads begin to fail. Therefore, these LED lamps would be evaluated to validate that they haveno safety-significant adverse effect on a ballast circuit, both during normal operation and duringsingle-fault conditions.HID ballasts were not generally evaluated for rectification (DC) faults. Therefore, these LED lamps wouldalso be evaluated to validate that the occurrence of such an electrical fault, caused
