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Skuteczność i Wybór - Najlepszy Krem Do Twarzy na Dzień dla Twojej Skóry
How Does PAT Testing Work?
The earth continuity test allows for verification of the connectivity between any exposed metal parts and the protective earth pin in the mains plug of a class 1 appliance. This involves connecting the item of electrical equipment to the PAT tester, and the test probe to exposed metal parts. A current is then transferred from the PAT tester along a mains cord to the enclosure. This current then flows back to the PAT tester via the protective earth conductor. This will result in the display of the protective earth path resistance.
The measurement of a predictive conductor current will require the connection of the appliance to the PAT tester. The powering of the appliance will result in a current flowing along the mains supply via live and neutral conductors. The live and neutral currents will ideally be neutral. However, the PAT may highlight an imbalance between the live and neutral currents in some instances.
Physics Aptitude Test (PAT)
Everyone who applies to study physics or physics and philosophy at Oxford, without exception, must take the Physics Aptitude Test (PAT), a two-hour test that evaluates a student’s ability in both physics and maths.
The date of the next PAT will be 28 October 2024. Registration information for the PAT can be found here.
From 2024, the PAT will be online and delivered via Pearson VUE’s established network of test centres. It remains the case that in 2024 there will be no charge for candidates to register for Oxford's own admissions tests.
What needs to be PAT tested?
PAT testing should be carried out on any electrical appliance that can cause harm, either by electrical shock or fire. This includes portable appliances, such as kettles, toasters, hairdryers, and larger appliances, like fridges, ovens, and washing machines.
Other portable electrical appliances requiring testing include power tools, extension leads, and computer equipment.
It's important to note that not all appliances need to be tested at the same frequency. The testing interval will depend on various factors, such as the type of appliance, its usage, and the environment it's used in.