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(续上期)四、接地电阻测量仪1用途接地电阻测量仪,在防火检查时,用作检查电气设备、避雷针以及静电接地情况是否良好,防止因落雷或接地电阻过大引起的灾害。2使用方法用两根导线,一端分别连在C1P1两个端纽上,另一端分别连在两个接地棒上,作垂直线彼此相距20m钉入土内。将P 2和C2连接在一处并用导线与接地线相连(见下图所示)。然后将仪表放置水平位置,
(Continued) Fourth, the grounding resistance meter 1 Use Grounding resistance measuring instrument, in the fire inspection, used to check the electrical equipment, lightning rod and electrostatic grounding is good, to prevent lightning or ground resistance caused by excessive disaster. 2 Use Two wires, one end connected to the two ends of the C1P1 New Zealand, the other end were connected to the two grounding rods, 20 meters away from each other for vertical lines into the soil. Connect P 2 and C 2 together and connect them to ground wire (see picture below). Then the instrument placed in horizontal position,