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UL817是美规电源线的UL认证标准，电源线UL817认证需要进行绝缘电阻测试，三亿体育在线实验室具备UL817全项检测能力，接下来为大家介绍UL817电源线绝缘电阻测试方法。

UL817电源线绝缘电阻测试方法

标准依据： UL817（ 89.1 – 89.5）

检测对象：电源线及电线组件

样品数量： Normal：13 条；Tightened：20 条；Reduced：5 条。

测试方法及要求：

89 Insulation Resistance Test 

89 绝缘电阻测试

89.1 The insulation resistance of a fiing shall not be less than 100 megohms between:

89.1 以下各项之间的绝缘电阻不得小于100兆欧：

a)Live parts of opposite polarity,

a）极性相反的带电部件；

b)Live parts and dead metal parts that are exposed to contact by persons or that may be grounded in service,

b）暴露于人员接触或可能在使用中接地的带电部件和死金属部件；

c)Live parts and any surface of insulating material that is exposed to contact by persons or that may be in contact with ground in service.

c）带电部件和任何暴露于人员接触或可能与地面接触的绝缘材料表面。

89.2 To determine compliance with 89.1,the insulation resistance is to be measured by a magneto megohmmeter which has an open-circuit output of 500 V or by equivalent equipment.

89.2 为确定是否符合89.1，应使用开路输出为500 V的磁兆欧表或等效设备测量绝缘电阻。

89.3 The use of a megohmmeter between live parts requires no special clarification or instruction.However,in measuring insulation resistance to the surface of an insulating material,it is necessary to apply the electrode to the insulating material as described in 89.4.

89.3 在带电部件之间使用兆欧表无需特别说明。然而，在测量绝缘材料表面的绝缘电阻时，需要将电极施加到绝缘材料上，如89.4所述。

89.4 A quantity of No.7 lead drop shot lapproximate diameter 0.10 inch(2.5 mm)]is to be placed in a container which is open at the top.After cord holes or other openings through which the shot can enter have been plugged carefully with a high-resistance insulating material,the fitting is to be immersed in the shot so that the shot serves as an electrode in contact with the surface to which the test is to be applied.

89.4 将一定量的7号铅滴（近似直径0.10英寸（2.5 mm））放在顶部开口的容器中。用高电阻绝缘材料小心地塞住弹丸可进入的线孔或其他开口后，将配件浸入弹丸中，使弹丸用作与测试表面接触的电极。

89.5 All rubber parts are to be kept for at least 48 hours at room temperature before being subjected to the test mentioned in 89.1-89.4.

89.5 在进行89.1-89.4中提到的试验之前，所有橡胶部件应在室温下保持至少48小时。

电源线UL817测试报告办理流程

1. 前期咨询：提供需委托检测项目、测试条件或测试标准；

2. 评估报价：根据检测要求、样品规格及参数评估报价；

3. 填写委托书：向三亿体育在线发起检测申请，填写委托书（会有专人指导填写）；

4. 付款及提供样品资料：按照协定报价支付费用，按要求提供足够数量的样品及产品资料；

5. 安排检测：按委托要求对产品进行检测；

6. 出具报告：依据检测数据出具报告，将报告、发票及样品回寄客户。

三亿体育在线是获得UL TPTDP免目击测试实验室授权的第三方UL检测实验室，可提供软线组件和电源软线UL817测试及UL认证服务。