名称: UL498第123节图123.1地线孔连接测试针(5Lb砝码)|UL插座地线孔量规Figure123.1 Test pin A|Grounding Contact Test Gauge
标准： UL498-2012 Attachment Plugs and Receptacles（或最新版）要求；
使用说明: With the receptacle oriented to create the maximum contact displacement (possible distortion of contact affecting its contact ability), the test pin A, Figure 123.1 is to be fully inserted in the grounding contact. A 5 lb (1.27 kg) weight is to be gradually suspended form the test pin 6 inches (152 mm) from the face of the receptacle. The weight is to be applied for 1 minute, following which, the weight is to be removed. The application of the weight is to be repeated with the receptacles rotated 90, 180 and 270 degrees for a total of four applications. Usually the test is started with the grounding pin opening directly above, below or on either side of the line slots.