After engaging in a thorough discussion on the critical equipment list, I decided to conduct a quick search to gain further clarity on the topic. One common question that arose was the distinction between safety critical elements and safety critical equipment. It became evident that these two concepts are distinct from each other as outlined below: - It is crucial to differentiate between a high-level safety critical element and individual items of safety critical equipment, which are often mistakenly interchanged. - For example, a gas compressor is considered an item of safety critical equipment. - Such equipment may be associated with various safety critical elements such as hydrocarbon containment, overpressure protection, and high-speed rotating equipment. - Many verification schemes have mistakenly labeled specific pieces of equipment as safety critical elements, resulting in an excessive number of SCEs that are difficult to effectively manage. For more information, please refer to: [source link]
Examples of safety critical elements include hydrocarbon containment, overpressure protection, emergency shutdown systems (ESD), flare and blowdown systems, emergency power sources, designated escape routes, primary structural components of jackets, natural ventilation systems, and high-speed rotating equipment. For more information, visit http://www.icota-europe.com/documentation_of_verification.pdf.
It appears that you have come to a conclusion on your own, Josh. SC Elements function as protective measures, similar to those found in elaborate strategies such as Swiss Chess or Bow Tie models. SC Equipment typically serve as individual components of an SC Element, although this is not always the case. It is important to note that high-speed rotating equipment should be classified as SC Equipment rather than SC Elements.
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Answer: Safety critical elements are high-level components, while safety critical equipment refers to individual items like a gas compressor.
Answer: A gas compressor is an example of safety critical equipment.
Answer: Safety critical equipment can be associated with various safety critical elements such as hydrocarbon containment and overpressure protection.
Answer: Differentiating between the two helps avoid confusion and ensures effective management of safety critical elements.
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