The quickest certification to get is the CE certification. This certification covers the fundamentals of electrical testing and consists of 3 areas:
Mechanical: This test covers the basic mechanics of how circuits work. The mechanical tests come in the form of a single-ended, low-impedance, low-current power supply that tests two test points. The circuit and test points are connected with resistive load, high-impedance test, and low-current power supply tests. In the low-impedance test, a DC power supply is placed between the two test points. This power supply provides the DC voltage needed to pass the mechanical tests. Both of the tests are completed in one minute for a total of 30 minutes. The high-impedance circuit power supplies come in a load case and a load case + DC-DC load combination. This test is typically performed in 1.4-2 seconds. The test must be completed in this combination and must pass. The high-current circuit power supplies come in a load case and a load case + a small current, high-current load that uses a DC or AC power supply as a test power supply. This test is typically completed in 90 seconds to an hour. Both of these tests must have both pass. The time it takes to obtain each CE designation varies, and the shorter the test time, the earlier all the test results are released.
Electronics: The electronics tests are used to demonstrate how simple electrical systems work and apply their principles to other electronic system components. A schematic diagram showing the connections of the components in a system are included. The circuitry tests consist of tests that use an oscilloscope to look for the voltage and current signals that occur throughout a circuit. Both of these tests can be completed in 1.9-2 seconds. Both the low current and high current circuits tests are completed in 25 seconds or less. The time it takes for all four CE certification classifications to be obtained differs, depending on the test method chosen and the test location.
Mechanical: The test that covers the components inside a computer case involves the analysis of a test case for an electrical resistance, capacitance, and resistance. A mechanical circuit is designed to demonstrate the fundamentals of operating hardware. This test uses a voltage-current-torque (Vcc) test. While both of the circuit and test points are connected with resistive load, the circuit is also connected to a small current, high-current load that uses an AC or DC power supply
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