本推荐规程涵盖了大型旋转电机定子绕组中使用的成型绕线棒和线圈的耐压试验。此类试验适用于额定电压高达30000 V的机器。这些试验将在50 Hz或60 Hz下进行，可在室温或高温下进行。（在50 Hz或60 Hz下进行测试可能会导致可比样品出现不同的故障时间。） 待测试样品应代表机器中使用的棒或线圈，并应包括完整的绝缘棒和机器绕组的外部分级结构。 与机器中使用的特性不同的特性不应添加到试样中。

This recommended practice covers the voltage endurance testing of form-wound bars and coils for use in large rotating machine stator windings. Such testing is defined for machines with a nominal voltage rating up to 30 000 V. These tests are to be applied at 50 Hz or 60 Hz and may be done at either room temperature or elevated temperature. (Testing at 50 Hz or 60 Hz may yield different times to failure for comparable samples.) The specimen to be tested should be representative of the bars or coils used in the machine, and should include the complete insulated bar and external grading construction that the machine winding would have. Special features different than those used in the machine should not be added to the test specimens.