Nuclear Science and Techniques ›› 2012, Vol. 23 ›› Issue (2):
• NUCLEAR ENGINEERING •
ALSHAKETHEEP Tariq, LIU Jingquan
This paper aims to explain main ageing stressors and effects on instrumentation and control (I&C) components followed by ageing management strategies through developed design such as using freewheeling diode to eliminate relays contact ageing due to inductive loads, or through traditional practices and new online monitoring where I&C components can be checked and assessed remotely while the plant is operating. It also includes some recommendations for obsolescence management for special I&C components like microcontrollers and programmable logic controllers (PLCs).
instrumentation and control,
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