UL817是美規(guī)電源線的UL認(rèn)證標(biāo)準(zhǔn)，電源線UL817認(rèn)證需要進(jìn)行絕緣電阻測(cè)試，優(yōu)科檢測(cè)認(rèn)證實(shí)驗(yàn)室具備UL817全項(xiàng)檢測(cè)能力，接下來為大家介紹UL817電源線絕緣電阻測(cè)試方法。

UL817電源線絕緣電阻測(cè)試方法

標(biāo)準(zhǔn)依據(jù)： UL817（ 89.1 – 89.5）

檢測(cè)對(duì)象：電源線及電線組件

樣品數(shù)量： Normal：13 條；Tightened：20 條；Reduced：5 條。

測(cè)試方法及要求：

89 Insulation Resistance Test 

89 絕緣電阻測(cè)試

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

89.1 以下各項(xiàng)之間的絕緣電阻不得小于100兆歐：

a)Live parts of opposite polarity,

a）極性相反的帶電部件；

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

b）暴露于人員接觸或可能在使用中接地的帶電部件和死金屬部件；

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）帶電部件和任何暴露于人員接觸或可能與地面接觸的絕緣材料表面。

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 為確定是否符合89.1，應(yīng)使用開路輸出為500 V的磁兆歐表或等效設(shè)備測(cè)量絕緣電阻。

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 在帶電部件之間使用兆歐表無需特別說明。然而，在測(cè)量絕緣材料表面的絕緣電阻時(shí)，需要將電極施加到絕緣材料上，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 將一定量的7號(hào)鉛滴（近似直徑0.10英寸（2.5 mm））放在頂部開口的容器中。用高電阻絕緣材料小心地塞住彈丸可進(jìn)入的線孔或其他開口后，將配件浸入彈丸中，使彈丸用作與測(cè)試表面接觸的電極。

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 在進(jìn)行89.1-89.4中提到的試驗(yàn)之前，所有橡膠部件應(yīng)在室溫下保持至少48小時(shí)。

電源線UL817測(cè)試報(bào)告辦理流程

1. 前期咨詢：提供需委托檢測(cè)項(xiàng)目、測(cè)試條件或測(cè)試標(biāo)準(zhǔn)；

2. 評(píng)估報(bào)價(jià)：根據(jù)檢測(cè)要求、樣品規(guī)格及參數(shù)評(píng)估報(bào)價(jià)；

3. 填寫委托書：向優(yōu)科發(fā)起檢測(cè)申請(qǐng)，填寫委托書（會(huì)有專人指導(dǎo)填寫）；

4. 付款及提供樣品資料：按照協(xié)定報(bào)價(jià)支付費(fèi)用，按要求提供足夠數(shù)量的樣品及產(chǎn)品資料；

5. 安排檢測(cè)：按委托要求對(duì)產(chǎn)品進(jìn)行檢測(cè)；

6. 出具報(bào)告：依據(jù)檢測(cè)數(shù)據(jù)出具報(bào)告，將報(bào)告、發(fā)票及樣品回寄客戶。

優(yōu)科檢測(cè)認(rèn)證是獲得UL TPTDP免目擊測(cè)試實(shí)驗(yàn)室授權(quán)的第三方UL檢測(cè)實(shí)驗(yàn)室，可提供軟線組件和電源軟線UL817測(cè)試及UL認(rèn)證服務(wù)。