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  2. Portable appliance testing - Wikipedia

    en.wikipedia.org/wiki/Portable_appliance_testing

    This test is performed using an insulation resistance test meter, or PAT tester, by applying a nominal voltage to the live conductors (line and neutral) of an appliance, and placing 0 volt reference on the earthed parts of a Class I appliance or the external metal parts of a Class II appliance;

  3. Peripheral Arterial Tone - Wikipedia

    en.wikipedia.org/wiki/Peripheral_Arterial_Tone

    The PAT signal is a form of pulse wave amplitude measured by incorporating both a unified pressure field and a specific isosbestic wavelength.Applying a uniform pressure field around the measured surface releases arterial wall motion restriction, magnifies the dynamic range of the recorded signal, and prevents the distention of the veins distal to the site of pressure application.

  4. Paddington alcohol test - Wikipedia

    en.wikipedia.org/wiki/Paddington_Alcohol_Test

    The Paddington alcohol test (PAT) was first published in the Journal of Accident & Emergency Medicine in 1996. It was designed to identify alcohol-related problems amongst those attending accident and emergency departments .

  5. Electrical safety testing - Wikipedia

    en.wikipedia.org/wiki/Electrical_safety_testing

    Live testing. Earth fault loop impedance testing: this test is to check that if a fault did occur, that the system meets requirements to cause a disconnection of the supply within the time limit specified by standards Insulation resistance testing Polarity test: a test to check that the connections are connected in the right sequence

  6. Electrical isolation test - Wikipedia

    en.wikipedia.org/wiki/Electrical_isolation_test

    In electrical engineering, an electrical isolation test is a direct current (DC) or alternating current (AC) resistance test that is performed on sub-systems of an electronic system to verify that a specified level of isolation resistance is met. Isolation testing may also be conducted between one or more electrical circuits of the same ...

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