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Between the 1970s and 1996, Dresden was fined $1.6 million for 25 incidents. June 5, 1970: A false high pressure signal due to instrument failure on the Dresden II reactor pressure control system caused turbine valves to dump steam (a "turbine trip"), which in turn automatically initiated a SCRAM. Void collapse in the reactor water caused the ...
To prevent electric power distribution network damage, each station along the network is protected with circuit breakers or fuse cutouts which turn off power in the event of a short circuit. These protection solutions present a major problem when restoring power immediately following transient events, because repair crews need to manually reset ...
Fischer Connectors’s main production site in Saint-Prex, Switzerland (2013) Fischer Connectors is a Swiss multinational company that designs, manufactures and distributes electrical connectors and optical fiber connectors, cable assemblies and electronic and connectivity systems.
IEC/EN 62061, ”Safety of machinery: Functional safety of electrical, electronic and programmable electronic control systems”, is the machinery specific implementation of IEC/EN 61508. It provides requirements that are applicable to the system level design of all types of machinery safety-related electrical control systems and also for the ...
A sequence of events recorder (SER) [1] is an intelligent standalone microprocessor based system, which monitors external inputs and records the time and sequence of the changes. [2] [3] They usually have an external time source such as a GPS or radio clock. When wired inputs change state, the time and state of each change is recorded.
An 80-year-old woman died one month after her Sleep Number bed suddenly moved without warning and trapped her against a wall for two days last year, a new lawsuit alleges.
Image credits: yellingsnowloaf However, cats may squeeze into spaces in your house that are not safe for them. Washers, dryers, and unseen crawlspaces are examples, and owners should be aware of ...
In 1962, Fisher Engineering introduced the “Quick-Switch” hydraulic angling system. The system enabled the snowplow operator to change the angle of the blade left and right, hydraulically, from a control lever mounted inside the vehicle's cab. Until then, the snowplow operator had to manually change the angle of the blade from outside the ...