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In electrical safety testing, portable appliance testing (PAT inspection or PAT testing) is a process by which electrical appliances are routinely checked for safety, commonly used in the United Kingdom, Ireland, New Zealand and Australia. In Australia and New Zealand it is commonly known as Test and Tag.
In Europe, a double insulated appliance must be labelled Class II or double insulated or bear the double insulation symbol: ⧈ (a square inside another square). As such, the appliance should not be connected to an earth conductor because the high-impedance casing will cause only low-fault currents that are unable to trigger the fusible cut-out.
The challenge to date with PAT for pharmaceutical manufacturers is knowing how to start. A common problem is picking a complex process and getting mired in the challenge of collecting and analyzing the data. The following criteria serve as a basic framework for successful PAT roll-outs: (From A PAT Primer) Picking a simple process.
Calico; California Pizza Kitchen; Callaway Golf Company; CamelBak; Cannabis Science; CapitalG; Carbon Lighthouse; Carbon Sciences; CareFusion; CASA 0101; Cathay Bank
This is a list of regions of California, organized by location. Northern California. Central California. Central California. Central Valley; Central Coast (North) ...
Aerial view of the Santa Susana Field Laboratory in the Simi Hills, with the San Fernando Valley and San Gabriel Mountains beyond to the east. The Energy Technology Engineering Center site is in the flat Area IV at the lower left, with the Rocket Test Field Laboratory sites in the hills at the center.
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Double insulation is a design concept where failure of one insulation system will not expose the user to a shock hazard due to the presence of a second independent layer of insulation. Reinforced insulation is a supplemental insulation system that is strong enough to effectively perform as if a double insulation system was present.