【正文】 Part 1: General Requirements, UL 50851, and the Standard for Low Voltage Transformers 177。 A temperature reference point on the enclosure or surface of an LED driver or LED array, de174。 A source as de174。 A conductive part that has an electrical difference of potential with respect to earth ground or any other conductive part. A part connected to a grounded supply (neutral) conductor is considered to be a live part. PLC (PERFORMANCE LEVEL CHARACTERISTIC) VALUE 177。 An assembly of one or more LED discrete electronic ponents on a printed circuit board, typically with optics and additional thermal, mechanical, and electrical interfaces. LED CONTROL MODULE (LED CONTROLLER) 177。ames from within a product. ENVIRONMENTAL LOCATIONS a) DRY LOCATION 177。 A circuit supplied by a source with no direct electrical connection between input and output, such as provided by a transformer or optical isolator, and with output parameters as follows: source with a maximum output voltage of V peak ac (30 V rms) or 60 V dc。c ponents are inplete in construction features or restricted in performance capabilities. Such ponents are intended for use only under limited conditions, such as certain temperatures not exceeding speci174。 UL的所有標準和版權(quán)所有 ,所有權(quán) ,權(quán)利有關(guān)這些標準仍然 UL的唯一和獨占財產(chǎn)。 Future Effective Date未來的生效日期 Reference參考 October 17, 2020 2020/10/17 Paragraphs and NOVEMBER 18, 2020 (Title Page Reprinted: May 22, 2020) 1 UL 8750 Standard for Light Emitting Diode (LED) Equipment for Use in Lighting Products First Edition November 18, 2020 This ANSI/UL Standard for Safety consists of the First Edition including revisions through May 22, 2020. The most recent designation of ANSI/UL 8750 as an American National Standard (ANSI) occurred on May 22, 2020. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page, or effective date information. 最近的 ANSI / UL 8750指定為美國國家標準 (ANSI)發(fā)生在 5月 22日 ,2020年。s Standards for Safety agree to defend, indemnify, and hold UL harmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonable attorney39。不得復(fù)制 ,出版的一部分存儲在檢索系統(tǒng)中 ,或以任何形式通過任何方式傳播 ,電子、機械復(fù)印、錄制、 UL或未經(jīng)許可 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 174。 UL 8750 Light Emitting Diode (LED) Equipment for Use in Lighting Products MAY 22, 2020 ? UL 8750 tr1 UL Standard for Safety for Light Emitting Diode (LED) Equipment for Use in Lighting Products, UL 8750 UL標準安全發(fā)光二極管 (LED)設(shè)備用于照明產(chǎn)品、 UL 8750 First Edition, Dated November 18, 2020 第一個版本 ,日期為 2020年 11月 18日 Summary of Topics 總結(jié)的主題 This revision to ANSI/UL 8750 includes the following changes in requirements: 這個修訂 ANSI / UL 8750變化包括以下要求 : ? Clarify requirements for conformal coatings, paragraph 、段落 ? Insulation materials in transformers and coils 177。tness for any purpose. UL提供這個標準 沒有任何形式的擔保 ,不論是明示或暗示 ,包括但不限于適銷性的隱含保證或 174。s fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchaser39。 ANSI審批標準不包括封面 ,傳輸頁面 ,頁面標題 ,或生效日期信息。 COPYRIGHT 169。ed limits, and shall be used only under those speci174。 and a maximum output current limited to: a) maximum 8 amps for 0 177。 A location not normally subject to dampness, but may include a location subject to temporary dampness, as in the case of a building under construction, provided ventilation is adequate to prevent an accumulation of moisture. b) DAMP LOCATION 177。 Electronic circuitry interposed between the power source and an LED array to dim, switch, or otherwise control the electrical energy to the LED array. The device does not contain a power source and is not connected directly to the branch circuit. LED DRIVER 177。 An integer that de174。ned by . POWER SUPPLY 177。ned at the discretion of the manufacturer. added May 22, 2020 UNIT 177。 Part 3: Class 2 and Class 3 Transformers, UL 50853, b) The Standard for Transformers and Motor Transformers for Use in Audio, Radio and TelevisionType Appliances, UL 1411, c) The Standard for Low Voltage Transformers 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 935. revised October 17, 2020 A transformer for use with LED units that plies with any one of the following standards is considered to meet the intent of the requirements of this standard: a) The Standard for Low Voltage Transformers 177。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。 Part 3: Class 2 and Class 3 Transformers, UL 50853. POWER SOURCE, ISOLATED LOW VOLTAGE LIMITED ENERGY (LVLE) 177。re limits. PART, LIVE 177。 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 LE