TM-650 2.5.6.2A-1997

Electric Strength of Printed Wiring Material

TM-650 2.5.6.2A-1997 发布历史

This method describes a technique for evaluating the ability of an insulating material to resist electrical breakdown perpendicular to the plane of the material when subjected to short term@ high voltages at standard AC power frequencies of 50-60 Hz. Applicability and Use of Data This method may be used on material of any thickness up to approximately 0.125 inch@ however@ for material over 0.020 inch@ other methods such as dielectric breakdown are normally used to characterize a material's electrical integrity. Results of this test may be drastically affected by moisture content@ and results obtained using different preconditioning may not be comparable. This method uses an oil medium to prevent flashover on a small specimen and results may not be comparable to tests run in air. Values obtained using this method should not be used for predicting the insulating ability of ultra thin metal clad laminates. The values determined by this method generally decrease with increasing specimen thickness for otherwise identical material. This method is based on the techniques described in ASTM D149.

TM-650 2.5.6.2A-1997由IPC - Association Connecting Electronics Industries 发布于 1997-08-01，并于 1998-06-23 实施。

TM-650 2.5.6.2A-1997的历代版本如下：

• 1997年08月01日 TM-650 2.5.6.2A-1997

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标准号

TM-650 2.5.6.2A-1997

发布日期

1997年08月01日

实施日期

1998年06月23日

废止日期

无

中国标准分类号

/

国际标准分类号

/

发布单位

IPC - Association Connecting Electronics Industries

引用标准

3

适用范围

This method describes a technique for evaluating the ability of an insulating material to resist electrical breakdown perpendicular to the plane of the material when subjected to short term@ high voltages at standard AC power frequencies of 50-60 Hz. Applicability and Use of Data This method may be used on material of any thickness up to approximately 0.125 inch@ however@ for material over 0.020 inch@ other methods such as dielectric breakdown are normally used to characterize a material's electrical integrity. Results of this test may be drastically affected by moisture content@ and results obtained using different preconditioning may not be comparable. This method uses an oil medium to prevent flashover on a small specimen and results may not be comparable to tests run in air. Values obtained using this method should not be used for predicting the insulating ability of ultra thin metal clad laminates. The values determined by this method generally decrease with increasing specimen thickness for otherwise identical material. This method is based on the techniques described in ASTM D149.