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202在一年1就在今年1月份1日起  ，UL8750最新条文将仪式全面推行  ！

2022年15月1日起  ，UL8750最新时间保险条款内容将正是执行  ，请见方式就是一些对物料引响明显的UL8750最新时间的保险条款内容读懂 。

条款英文1：SUPPLEMENT SE–REQUIREMENTS FOR CLASS P LED DRIVERS

SE5.3 A driver with field-wiring leads, field-wiring terminals, or push-in terminals shall be marked “Use only within an enclosure” or equivalent. The marking may be provided in an installation guide or equivalent accompanying document.

有直播布线、直播接接线接线端子排可能推入式接线接线端子排的CLASS P LED 带动都要标上“Use only within an enclosure”或等效那些固化的价签 。 那些固化的价签可以印在商品可能这说明书本上 。

 协议2:  6.7 Polymeric potting compound

6.7.3 Polymeric potting compound that can touch any part of the insulation system of a transformer shall be tested in accordance with Supplement SA– Substitutions or Modification to an Electrical Insulation System in the Standard for Systems of Insulating Materials–General, UL 1446.
Exception No.1: This test does not apply if the transformer is not used for the mitigation of the risk of electric shock or is not used to separate Class 2 circuits or LVLE circuits from hazardous circuits.
Exception No.2: This test does not apply if the transformer insulation system already includes the potting.
Exception No.3: This test does not apply if the insulation system is used up to the temperature permitted for class 105 (A) according to Table 8.1 of this standard.
Exception No.4: This test does not apply for thermosetting potting compounds where the insulation system of a transformer utilizes a thermoset varnish which completely encloses the coil windings- preventing the potting compound from making contact with the winding wire insulation.

灌上胶要是相处到箱式变压器接地模式所以一部分  ，就要依照Supplement SA–Substitutions or Modification to an Electrical Insulation System in the Standard for Systems of Insulating Materials–General, UL 1446 展开测试软件 。

例外情况1：要配电变压器不需于减少雷击风险点或不需于将Class 2集成运放或LVLE集成运放与隐患集成运放连在一起  ，则该软件测试不满用 。

特殊2：如低压变压器隔绝系统就已经涉及到灌胶封  ，则该各种测试沉重感用 。 

特殊3：一旦耐压体系的利用室内的温度符合本细则表8.1法规的105(A)级能够的室内的温度  ，则该测量不舒采用 。

认同4：如干式变压器的隔热系统的采用热固性清漆  ，并根本尾翼电机绕线线放置热固性灌贴胶与电机绕线隔热接觸  ，则该测量难受用 。 

条例3：7.2A.2 Grounding

7.2A.2.7 When the path between the grounding connection means and the ground termination point in the product includes PWB traces, the construction is to be evaluated per the bonding conductor tests in 8.23.

不跨接接入安全装置和跨接端触点开关互相的方向也包括PWB铺线时   ，须要测评8.23 bonding conductor tests 。

免责条款4：SUPPLEMENT SF–LED EQUIPMENT WITH WIRED CONTROL CIRCUITS

LED设施时用於调控工率、光内容输出性质、基本操作或稳定性数据信息传导等的调控集成运放想要附合SF 的的要求 。 

Marking requirement

1. Identification of the terminals or lead wires for control circuits, Identification of the intended industry or proprietary protocols;

2. Device wired control circuit marked ‘Class 2’;

3. “CAUTION: More than one power supply present” or equivalent;

4. “Notice: This control circuit is not isolated - see installation instructions” or equivalent;

5. Installation instructions.

Marking 需要

1. 调节电路接线端子排或电线电缆区分   ，业内或专有条约区分；

2. “Class 2”如调整线路图已分析评估Class 2或外接Class 2电；

3. “CAUTION: More than one power supply present” 如调节的线路是外接非Class 2电原；

4. “Notice: This control circuit is not isolated - see installation instructions” 如把握电路系统非隔开并具备豁免条款内容SF3.1；

5. 装置证明 。

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