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): OOLVStandard Number: UL 1993Standard Title: Standard for Self-Ballasted Lamps and Lamp AdaptersEdition Date: January 27, 2017Edition Number: 5Section / Paragraph Reference: SA8.5.6 (REV), SA8.5.7 (NEW
3、)Subject: Temperature test of LED lampsThis Certification Requirement Decision (CRD) supersedes prior CRD issued Feb. 8,2017DECISION:SA8.5.6 For a device substituting for linear fluorescent lamp, the device shall be subjected to thetemperature test of Clause 8.5. The test fixture for testing the lam
4、p shall be in accordance with ClauseSA9.5.1. The temperature on components shall not exceed the limits described in Table 8.2.In addition,no lampholder or wooden test fixture surface shall exceed 90CSA8.5.7 Lamp input current shall be recorded 15 minutes after the start of the test, and at the end o
5、f thetest. These values shall comply with 8.2.1 and they be within 10 percent of each other.RATIONALE FOR DECISION:These revisions document ULs certification practice for performing the temperature test on linear LEDlamps.The revision to SA8.5.6 is intended to verify that an LED lamp is not likely t
6、o cause any luminaire ormounting surface to exceed 90C when the lamp is installed and operated as intended. LED lamps withtraditional incandescent lamp bases are likely to be installed luminaires designed for incandescent lamps.Such luminaires are designed to withstand the thermal stresses of tradit
7、ional incandescent light sources,and have commensurate insulation and thermal spacings. However, linear LED lamps tend to be used inluminaires designed for fluorescent lamps, which are designed for lower thermal gradients between theirlight sources and nearby electrical insulation and combustible mo
8、unting surfaces when compared toincandescent luminaires.This limit matches the temperature limit defined for combustible structural building parts (including therecessed text box) in Table 14.1.2 of UL 1598, the Standard for Luminaires. It is also consistent with thelimit for surfaces upon which the
9、 unit is placed or mounted in service in Table 8.1 of UL 8750, Standardfor LED Equipment for Use in Lighting Products.SA8.5.7 is intended to verify that the lamp functions normally during the temperature test, and that currentdraw is compliant with the input measurements. Neither UL 1598 (clause 14.
10、2.9) nor UL 8750 (clause8.3.7) allow protective components to operate during the normal temperature test, or for a power sourceto fold back the current during normal operation. The verbiage for SA8.5.7 is consistent with that in UL8750.Copyright 2017 UL LLCUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR
11、FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULUL LLC, in performing its functions in accordance with 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 Req
12、uirement Decisions are the opinion of UL LLC. in practically applying therequirements of the standard. They do not represent 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 Ce
13、rtification Requirement Decisions by anyone. UL LLC shall not incur anyobligation or liability for damages, including 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 1993 -2-
