The test range of the voltage withstand tester refers to the range of voltages and current strengths that can be tested by the instrument. According to different test standards and requirements, the test range of the withstand voltage tester will also be different. The following are some common withstand voltage tester test range:
Voltage range: the voltage range of withstand voltage tester is usually between tens of volts to thousands of volts. Depending on the test object, the voltage range will also be different. For example, the voltage range of the withstand voltage tester for household appliances and electronic products may be below 250V, while the voltage range of the withstand voltage tester for high-voltage appliances and power equipment may be as high as thousands of volts or even higher.
Current strength: the current strength of the withstand voltage tester is usually at the mA level, i.e., between tens of milliamps and hundreds of milliamps. The magnitude of the current strength depends on the capacity and insulation of the equipment under test. During the test, the withstand voltage tester will gradually increase the voltage until the current reaches the preset current value or the device under test breaks down.
Test Mode: The Withstand Voltage Tester can be operated according to different test modes. Common test modes include DC withstand voltage test, AC withstand voltage test, pulse withstand voltage test and so on. Different test modes are suitable for different test objects and requirements, for example, AC withstand voltage test is suitable for testing the insulation performance of equipment under AC voltage, while pulse withstand voltage test is suitable for testing the insulation performance of equipment under transient overvoltage.
Testing accuracy: the testing accuracy of the withstand voltage tester is also one of its important indicators. Testing accuracy includes voltage accuracy, current accuracy, time accuracy and so on. In the selection of withstand voltage tester, should pay attention to its accuracy index is in line with the test requirements, in order to ensure the accuracy and reliability of the test results.
In short, the test range of withstand voltage tester depends on its voltage range, current strength, test mode and test precision and other factors. In actual use, a suitable withstand voltage tester should be selected for testing according to the specific test requirements and characteristics of the equipment under test, in order to ensure the safety and reliability of the equipment.