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View Electrical Safety Training
View Electrical Safety Training

... person holding two "hot" wires, a hot and a neutral wire in each hand, or contacting an overhead power line). However, it protects against the most common form of electrical shock hazard, the ground-fault. It also protects against fires, overheating, and destruction of wire insulation. Slide 14 (of ...
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... Therefore, this number is to be used as a figure of merit of what is the accuracy of this setup. The leakage current presented in figure 4 also includes the leaks in the SHV connectors, RG59 cables and other components of the setup. The uncertainty introduced by the additional leakage currents due t ...
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... A Kelvin probe is a coaxial contact probe with two electrically insulated measuring circuits. The typical 4-wire-methode is based on a constant current, flowing through the test resistance and the measurement of the resulting drop in voltage, which is directly proportional to the resistance value. A ...
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... CAUTION: Speaker strobes are not designed to be used on coded systems in which the applied voltage is cycled on and off. NOTE: Make sure the total RMS current required by all appliances that are connected to the system’s primary and secondary power sources, NAC Circuits, DSM Sync Modules or Wheelock ...
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Portable appliance testing



Portable appliance testing (commonly known as ""PAT"", ""PAT Inspection"" or ""PAT Testing"") is the name of a process in the United Kingdom, the Republic of Ireland, New Zealand and Australia by which electrical appliances are routinely checked for safety. The correct term for the whole process is ""in-service inspection & testing of electrical equipment"".Similar procedures exist in other countries, for example, testing of equipment according to DGUV Vorschrift 3 in Germany.Health and safety regulations require that electrical appliances are safe and maintained to prevent harm to workers. Many equipment manufacturers recommend testing at regular intervals to ensure continual safety; the interval between tests depending on both the type of appliance and the environment in which it is to be used. The European Low Voltage Directive governs the manufacture or importation of electrical appliances. Compliance to this has to be declared and indicated by the display of the CE mark on the product. The responsibility for this lies with the manufacturer or the importer and is policed by Trading Standards.Testing equipment has been specifically developed for PAT inspections, based on the testing equipment used by manufacturers to ensure compliance with the British Standard Code of Practice and European product standards relevant to that type of appliance. This in turn allows testing and the interpretation of results to be de-skilled to a large extent. The inspection of the appliances can largely be carried out in-house in many organisations. This can result in cost savings and more flexibility as to exactly when a PAT is carried out.
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