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Scram
EntityQ1591311· pop 19· linked from 119 articles

Also known as AZ-5, АЗ-5, reactor scram, safety shutdown

thumb|SCRAM button at the Experimental Breeder Reactor I|Experimental Breeder Reactor I in Idaho. Sometimes the switch will have a flip cover to prevent inadvertent operation.

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EBR-I - SCRAM button.jpg
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short name
RESA
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SCRAM
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7 sections
Contents
  • Etymology
  • Mechanisms
  • Reactor response
  • Decay heat
  • See also
  • References
  • External links

thumb|SCRAM button at the Experimental Breeder Reactor I|Experimental Breeder Reactor I in Idaho. Sometimes the switch will have a flip cover to prevent inadvertent operation.

A scram or SCRAM is an emergency shutdown of a nuclear reactor effected by terminating the fission reaction. It is also the name that is given to the manually operated kill switch that initiates the shutdown. In commercial reactor operations, this type of shutdown is often referred to as a "scram" at boiling water reactors and a "reactor trip" at pressurized water reactors. In many cases, a scram is part of the routine shutdown procedure which serves to test the emergency shutdown system.

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