【正文】 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30A Coil insulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31 Class 2 output circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34A PERFORMANCE 8 Performance Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34A General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34A Input test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34B Temperature test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34B Dielectric voltage withstand test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38B Abnormal tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38C Circuit power limit measurement test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40 Leak age current measurement test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43 Cord strain and pushback relief test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45 Security of output terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46 Insulationpiercing connection thermal cycling test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46 Adhesive support test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47 Environmental tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47 UL COPYRIGHTED MATERIAL – NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Document Was Downloaded By jeanne han For Use By CHENGDU NETON OPTOELECTRONIC TECHNOLOGIES CO LTD 30232 : 6/27/2014 9:58 AM 4 UL 8750 OCTOBER 17, 2020 Mechanical strength tests for metal enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51 Determination of lowvoltage, limitedenergy circuit status . . . . . . . . . . . . . . . . . . . . . . . . .51 Knockout secureness test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52 Thermal aging test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52 9 Markings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52A General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52A Identi174。c requirement that: a) Involves a feature or characteristic not required in the application of the ponent in the product covered by this standard, or b) Is superseded by a requirement in this standard. A ponent shall be used in accordance with its rating established for the intended conditions of use. Speci174。nitions For the purpose of these requirements, the following de174。 Part 3: Class 2 and Class 3 Transformers, UL 50853. CIRCUIT, ISOLATED LOW VOLTAGE LIMITED ENERGY (LVLE) 177。 30 V dc, or b) 150/V amps, for a voltage between 30 177。re or 175。 A location in which water can drip, splash, or 175。 A solidstate ponent embodying a pn junction, emitting optical radiation when excited by an electric current. UL COPYRIGHTED MATERIAL – NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Document Was Downloaded By jeanne han For Use By CHENGDU NETON OPTOELECTRONIC TECHNOLOGIES CO LTD 30232 : 6/27/2014 9:58 AM 8 UL 8750 OCTOBER 17, 2020 LED ARRAY (LED MODULE) 177。 An assembly of one or more LED die that contains wire bond connections and may include an optical element and thermal, mechanical, and electrical interfaces. The package does not include a power source and is not connected directly to the branch circuit. MEASUREMENT INDICATION UNIT (MIU) 177。re limits. PART, LIVE 177。ned in the Standard for Polymeric Materials 177。 Part 3: Class 2 and Class 3 Transformers, UL 50853. POWER SOURCE, ISOLATED LOW VOLTAGE LIMITED ENERGY (LVLE) 177。 A risk of electric shock exists between any two conductive parts or between a conductive part and earth ground if the continuous current 175。re exists in all electrical circuits except: a) A Class 2 circuit, b) An LVLE circuit, or c) A circuit of 15 W maximum power limit under normal and single fault conditions, as measured in accordance with . revised May 22, 2020 TEST REFERENCE POINT 177。 A unit intended to be permanently connected electrically to the wiring system. UNIT, PORTABLE 177。 Part 1: General Requirements, UL 609501 (refer to Appendix B for additional requirements for power supplies), c) The Standard for Power Units Other Than Class 2, UL 1012, or d) The Standard for FluorescentLamp Ballasts, UL