1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULUNDERWRITERS LABORATORIES INC. CERTIFICATION REQUIREMENT DECISIONThis Certification Requirement Decision is prepared by UL LLC. It is normative for the applicable ULProduct Certification Program(
2、s); however, it is currently not part of the UL Standard(s) referencedbelow.Product Category (CCN): VariousStandard Number: UL 1598Standard Title: Standard for LuminairesEdition Date: September 17, 2008Edition Number: 3Section / Paragraph Reference: Annex GSubject: Revised Annex G addressing LED lum
3、inaires with Edison screwlampholdersDECISION:Annex G (normative)Luminaires for use with self-ballasted compact fluorescent (CFL) or self-ballasted light emittingdiode (LED) lampsG.1 Special terminologyThe following definitions apply:Lampholder, Conventional Any lampholder defined in or referenced by
4、 ANSI C81.62 except theGU-24 and any designation reserved for use by LED lamps only.Lampholder, Edison (Screw) Refer to ANSI C81.62. These designations use an “E” prefix (i.e.: E12,E26, etc.).Self-Ballasted Lamp Self-Ballasted Lamp, either self-ballasted compact fluorescent lamp orself-ballasted LED
5、 lamp.Self-Ballasted Compact Fluorescent Lamp (CFL) A device provided with a lamp base andincorporating a non-replaceable fluorescent light source and any additional elements necessary forstarting and stabilizing operation of the light source, which cannot be dismantled without beingpermanently dama
6、ged.Self Ballasted Light Emitting Diode (LED) Lamp A device provided with a lamp base andincorporating a non-replaceable LED light source and any additional elements necessary for starting andstabilizing operation of the light source, which cannot be dismantled without being permanently damaged.G.2
7、GeneralG.2.1 These criteria apply to luminaires with any ANSI type screwbase or pinbase lampholder such aswith GU24, candelabra (E120), intermediate (E17), medium (E26), mogul (E39), designed for use with aself-ballasted lamp.G.3 Construction, Test and Marking RequirementsUL COPYRIGHTED MATERIAL NOT
8、 AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULG.3.1 Incandescent Luminaires having a with conventional lampholders ANSI screwbase orpinbase lampholders other than GU24G.3.1.1 Construction All construction requirements in this standard applicable to incandescentluminai
9、res construction requirements in this standard.G.3.1.2 Tests All test requirements in this standard applicable to incandescent luminaires testrequirements in this standard. Testing shall be conducted based on the incandescent lamp wattage on thelamp replacement marking or clause 19.8.7, whichever re
10、sults in a greater wattage.G.3.1.3 Markings All markings in this standard applicable to incandescent luminaires markings in thisstandard, plus markings relevant to self-ballasted lamp use. Self-ballasted markings shall include arelamping marking that specifies max wattage self-ballasted compact fluo
11、rescent (CFL) or self-ballastedLED lamp permitted or both and indicates compliance with the Standard for Self-Ballasted Lamps andLamp Adapters, UL 1993/NMX-J-578/1-ANCE/CSA C22.2 No. 1993. The specified wattage shall notexceed the maximum incandescent lamp wattage marked on the luminaire. The markin
12、g shall be in formS24-L1.G.3.2 Fluorescent luminaires having an ANSI with GU24 pinbase lampholdersG.3.2.1 Construction All construction requirements in this standard applicable to fluorescent luminairesconstruction requirements in this standard.G.3.2.2 Tests All test requirements in this standard ap
13、plicable to fluorescent luminaires testrequirements in this standard.G.3.2.3 Markings All markings in this standard applicable to fluorescent luminaires marking in thisstandard, plus markings relevant to self-ballasted lamp use. Self-ballasted markings shall include arelamping marking that specifies
14、 the max wattage self-ballasted compact fluorescent (CFL) orself-ballasted LED lamp permitted or both and indicates compliance with the Standard for Self-BallastedLamps and Lamp Adapters, UL 1993/NMX-J-578/1-ANCE/CSA C22.2 No. 1993. The marking shall be inform S24-L1.G3.3 LED luminaires with Edison
15、lampholdersNOTE: This clause covers luminaires with replacement lamp markings that only specify LED lamps, with no reference toincandescent or halogen lamps.G.3.3.1 Construction All construction requirements in this standard applicable to incandescentluminaires.G.3.3.2 Tests All test requirements in
16、 this standard applicable to incandescent luminaires, as modifiedby clause G3.3.3G.3.3.3 Test Lamps - In lieu of the requirements in 19.8, testing shall be conducted using the appropriate120 volt rated incandescent test lamps specified by Table G.3.3, with the supply source adjusted such thatthe tes
17、t lamps dissipate 10 2% more power (i.e.: wattage) than the highest input power rating for theLED lamps that are intended for the luminaire under test. Reflector test lamps shall be used only if theluminaire will be marked for use with such lamps exclusively.Example: For luminaires intended for use
18、with 15 Watt LED lamps, the incandescent test lamps should dissipate 16.5 0.3Watts during the temperature testSTANDARD NUMBER: UL 1598 -2-UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULTable G.3.3Incandescent Test LampsDesignation Type Test L
19、amps1E39 Reflector 300W BR402E39 300W PS352, 300W PS252E26 Reflector 65W BR40, 65W BR30, 50W R20, 40W R16E26 40W A19, 40W A15, 40W B10E17 40W T6.5, 40W S11, 40W S8E12 40W B10, 25W T6, 25W T82,7WC7E11 50W T431For each designation and type, test lamps are listed in order of preference. Use the test la
20、mp with the greatest volume thatwill fit in the lamp compartment. If the intended LED lamp has a higher wattage rating that the test lamp, use a test lamp withthe next highest available wattage.2If a 120V rated lamp cannot be sourced, a 130 Volt rated lamp may be used3Halogen, 58 5mm MOL (Mean Overa
21、ll Length)G.3.3.4 Markings - All markings in this standard applicable to incandescent luminaires, plus markingsrelevant to self-ballasted lamp use, including:a) A relamping marking that specifies max wattage and type of self-ballasted LED lamppermitted, and indicates compliance with the Standard for
22、 Self-Ballasted Lamps and LampAdapters, UL 1993/NMX-J-578/1-ANCE/CSA C22.2 No. 1993. The marking shall be in formS24-L1.NOTE: The max wattage shall not be more than 91% of the wattage dissipated by the test lamp; see G.3.3.3.b) “CAUTION RISK OF FIRE. USE ONLY LED LAMPS IN THIS LUMINAIRE.INCANDESCENT
23、 AND HALOGEN LAMPS MAY CAUSE SEVERE THERMAL DAMAGE”inform S24L1.RATIONALE FOR DECISION:This proposal clarifies the intent and application of clauses G.3.1 and G.3.2. It also introduces new clauseG.3.3 with requirements for luminaires with Edison-based lampholders that are intended for useexclusively
24、 with LED lamps.The last sentence in G.3.1.2 was revised to clarify the existing requirement. Clause 19.8.7, which iscurrently normative for all incandescent luminaires, sets minimum lamp wattage levels for ceiling-mountedluminaires that use incandescent lamps, which addresses a common and potential
25、ly dangerous misuse.It is not uncommon for end-users to use higher wattage lamps than permitted by the marking in order toget more light from their luminaires. This overlamping practice can lead to the thermal degradation oflampholders and electrical insulation. This degradation is particularly acut
26、e with ceiling-mountedluminaires since the excess heat rising from the lamps will degrade the building wiring and electrical spliceinsulation in the junction box, typically located directly above the lamps.This potential risk of fire would be further exacerbated if a luminaire manufacturer were to s
27、pecify a “lowwattage” lamp in order to comply with the temperature test, only for the end-user to severely overlamp theluminaire in order to get the amount of light they deem sufficient. Clause 19.8.7 was intended to mitigatethe risk from this misuse by requiring minimum test lamp wattages for ceili
28、ng-mounted luminairesemploying certain Edison-based lamps.STANDARD NUMBER: UL 1598 -3-UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULClause G.3.3 was added to define requirements for a new class of luminaire: one that employsEdison-base lamps
29、 but is only intended for LED lamps. The construction requirements are identical tothose for traditional incandescent luminaires. However, during the temperature test these luminaireswould be allowed to use de-rated incandescent lamps to simulate the expected thermal loading of the LEDlamps for whic
30、h they will be exclusively marked.Using actual LED lamps as test loads would be problematic. There is currently no correlation betweenLED lamp shapes and minimum power consumption. In addition, many LED lamp designs incorporatecircuitry to reduce power to their arrays in cases of abnormal (elevated)
31、 ambient operation. While this canbe a useful feature in actual use, it also means that the wattage dissipated over the 7.5 hour duration ofa temperate test may be significantly less than the wattage rating marked on the lamp, and the actualpower consumption will vary from lamp to lamp and from lumi
32、naire to luminaire.Table G.3.3 enables temperature tests on these types of luminaires to be conducted using lamp loads thatare consistent in size and power consumption. The non-reflector test lamp configurations were selectedto represent those most strongly associated with a particular Edison lampho
33、lder size. The reflector testlamps were chosen to represent those generally expected to radiate the most heat into the lampcompartment. The 10% difference between the wattage of the intended LED lamp and the actual test loadis intended to accommodate differences in lamp shape and distance from lamp
34、compartment surfaces.Clause G.3.3 is intended to give luminaire manufacturers more flexibility since they would be able todesign and build luminaires with Edison-based lampholders for the lower thermal loads expected with LEDlamps. To address potential misuse, a marking would be added where visible
35、after installation and duringlamp replacement to warn users of the potential risk of using incandescent or halogen lamps in theseluminaires.The remaining revisions are grammatical in nature, done to clarify the existing text.Copyright 2018 UL LLCUL LLC, in performing its functions in accordance with
36、 its objectives, does not guarantee or warrant thecorrectness of Certification Requirement Decisions it may issue or that they will be recognized or adoptedby anyone. Certification Requirement Decisions are the opinion of UL LLC. in practically applying therequirements of the standard. They do not r
37、epresent formal interpretations of the standard underAmerican National Standards Institute (ANSI) processes. UL LLC shall not be responsible to anyone forthe use of or reliance upon Certification Requirement Decisions by anyone. UL LLC shall not incur anyobligation or liability for damages, includin
38、g consequential damages, arising out of or in connection withthe use or reliance upon Certification Requirement Decisions. The electronic version of the CertificationRequirement Decision is the current version and previously printed copies may be outdated.This document is published as a service to ULs certification customersSTANDARD NUMBER: UL 1598 -4-
