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An assortment of thermal fuses. A thermal cutoff is an electrical safety device (either a thermal fuse or thermal switch) that interrupts electric current when heated to a specific temperature. These devices may be for one-time use (a thermal fuse), or may be reset manually or automatically (a thermal switch).
Thermal cut-off valve (TV), which: prevents excessive temperatures. closes automatically at a certain temperature and cuts off the gas flow long before the ignition temperature of the gas mixture is reached. and a pressure-sensitive gas cut-off valve (PV), which stops the gas flow in the event of pressure shocks
The Play symbol is arguably the most widely used of the media control symbols. In many ways, this symbol has become synonymous with music culture and more broadly the digital download era. As such, there are now a multitude of items such as T-shirts, posters, and tattoos that feature this symbol.
Under this revised system, television programming would continue to fall into one of the six ratings categories (TV-Y, TV-Y7, TV-G, TV-PG, TV-14 or TV-MA), but content descriptors would be added to the ratings where appropriate, based on the type(s) of objectionable content included in the individual program or episode: D (suggestive dialogue ...
In electronics, cut-off is a state of negligible conduction that is a property of several types of electronic components when a control parameter (that usually is a well-defined voltage or electric current, but could also be an incident light intensity or a magnetic field), is lowered or increased past a value (the conduction threshold).
Nevertheless, the Indian-head test pattern persists as a symbol of early television. Many U.S. television stations chose the image of the Indian-head card to be their final image broadcast when their analog signals signed off for the final time between February 17 and June 12, 2009, as part of the digital television transition in the United States.
Turning on the heat for the first time this season can bring on cold-like symptoms. Here’s why — and how to avoid it.
The transistor's manufacturer will specify parameters in the datasheet called the absolute thermal resistance from junction to case (symbol: ), and the maximum allowable temperature of the semiconductor junction (symbol: ). The specification for the design should include a maximum temperature at which the circuit should function correctly.