What does the safety tester contain

Safety tester is used for high-voltage element, device voltage withstand measurement test (with AC and DC voltage withstand meter), such as silicon pile and so on. Mainly used to detect whether the product is leakage, whether the ground is good, will not harm personal safety dedicated, the main test items are voltage, leakage current, insulation resistance and grounding resistance. Safety tester specifically what test items and explanations: 1, voltage withstand test voltage withstand test is one of the most common safety test, common dielectricwithstand, highpotential, hipottest are referred to the voltage withstand test. The main purpose of the withstand voltage test test DUT (DeviceunderTest) insulation capacity. Therefore, when the equipment is in operation, a high voltage is applied to the test point to test whether there is insulation damage (Breakdown) or electrical flashover (Flashover/ARC) occurs. 2, insulation test insulation type is divided into four types: basic insulation (Basic), auxiliary insulation (Supplementary), double insulation (Double) and reinforced insulation (Reinforced). As the product may be due to excessive dust, humidity or other reasons lead to discharge along the surface, so the voltage test must also be used to determine whether the product's internal circuit design along the surface distance or insufficient insulation and other issues. 3, grounding impedance test There are two test methods for grounding protection: Ground Continuity Test (GroundContinuitytest, GC) and Ground Bond Test (GroundBondtest, GB). The purpose of the grounding protection test is to prevent users from improper current generation, the current will flow to earth, contact with the body will not lead to electrical hazards. 4, insulation resistance test Insulation impedance test and DC withstand voltage test is very similar to the DC voltage (50 ~ 1000V) applied to the two points of the relevant connection, can determine the good and defective products. Insulation impedance test is a non-destructive test, and can detect whether the insulation is good or not, in some specifications, is to do insulation impedance test and then conduct the withstand voltage test, and insulation impedance test can not be passed, often the withstand voltage test can not be passed. 5, leakage current test When the current through the insulation impedance after overflow, called leakage current (Leakagecurrent), when the leakage current flow by the human body contact, so that the current through the human body after the flow to Earth, that is, resulting in electrical injury. Leakagecurrent testing is different from voltage testing and grounding protection testing in that the equipment is tested under operational conditions.