1、 Resistance test method

電阻測試法是一種常用的測量方法。

Resistance test method is a common measurement method.

通常是指利用萬用表的電阻檔，測量電機、線路、觸頭等是否符合使用標稱值以及是否通斷的一種方法，或用兆歐表測量相與相、相與地之間的絕緣電阻等。測量時，注意選擇所使用的量程與校對表的準確性，一般使用電阻法測量時通用做法是先選用低檔，同時要注意被測線路是否有回路，并嚴禁帶電測量。

It usually refers to a method of measuring whether the motor, line and contact meet the nominal value and whether they are on and off by using the resistance gear of multimeter, or measuring the insulation resistance between phase and phase, phase and ground by megger. When measuring, pay attention to the selection of the range used and the accuracy of the calibration table. Generally, when using the resistance method for measurement, the general practice is to select the low-grade first. At the same time, pay attention to whether the measured line has a circuit, and live measurement is strictly prohibited.

二、電壓測試法

2、 Voltage test method

貴州高低壓配電設備告訴你電壓測試法是指利用萬用表相應的電壓檔，測量電路中電壓值的一種方法。

Guizhou high and low voltage distribution equipment tells you that the voltage test method refers to a method of measuring the voltage value in the circuit by using the corresponding voltage gear of the multimeter.

通常測量時，有時測量電源、負載的電壓，有時也測量開路電壓，以判斷線路是否正常。測量時應注意表的檔位，選擇合適的量程，一般測量未知交流或開路電壓時通常選用電壓的高檔，以確保不至于在高電壓低量程下進行操作，以免把表損壞；同時測量直流時，要注意正負出彩性。

In general, sometimes the voltage of power supply and load is measured, and sometimes the open circuit voltage is measured to judge whether the line is normal. When measuring, pay attention to the gear of the meter and select the appropriate range. Generally, when measuring unknown AC or open circuit voltage, the highest gear of voltage is usually selected to ensure that it will not operate under high voltage and low range, so as to avoid damaging the meter; Pay attention to the positive and negative polarity when measuring DC at the same time.

三、電流測試法

3、 Current test method

貴州高低壓配電設備告訴你電流測試法是通常測量線路中的電流是否符合正常值，以判斷故障原因的一種方法。對弱電回路，常采用將電流表或萬用表電流檔串接在電路中進行測量；對強電回路，常采用鉗形電流表檢測。

Guizhou high and low voltage distribution equipment tells you that the current test method is usually a method to measure whether the current in the line meets the normal value to judge the cause of the fault. For weak current circuit, ammeter or multimeter current gear is often connected in series in the circuit for measurement; Clamp on ammeter is often used to detect strong current circuit.

四、儀器測試法

4、 Instrument test method

借助各種儀器儀表測量各種參數，如用示波器觀察波形及參數的變化，以便分析故障的原因，多用于弱電線路中。

With the help of various instruments and meters to measure various parameters, such as observing the change of waveform and parameters with oscilloscope, so as to analyze the cause of fault, which is mostly used in weak current lines.

五、常規檢查法

5、 Routine examination method

依靠人的感覺器官（如：有的電氣設備在使用中有燒焦的糊味，打火、放電的現象等）并借助于～些簡單的儀器（如：萬用表）來尋找故障原因。這種方法在維修中常用，也是首先采用的。

Rely on people's sensory organs (such as burning smell, ignition and discharge of some electrical equipment in use) and with the help of ~ some simple instruments (such as multimeter) to find the cause of the fault. This method is the most commonly used and first used in maintenance.

六、更換原配件法

6、 Replacement of original parts

貴州高低壓配電設備告訴你即在懷疑某個器件或電路板有故障，但不能確定，且有代用件時，可替換試驗，看故障是否消失，恢復正常。

Guizhou high and low voltage power distribution equipment tells you that when you suspect that a device or circuit board is faulty, but you are not sure, and there are substitute parts, you can replace the test to see whether the fault disappears and returns to normal.

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