Inspection and monitoring systems

Inspection and monitoring systems >- Emergency planning arrangements. 

Overall, the existing situation in Europe regarding the prevention of freight train derailments through implementation of automatic inspection and monitoring systems is acceptable. However, considering the latest technical innovations and... 

There is a huge implementation cost associated with automatic inspection and monitoring systems, which is a great barrier for their adequate use. 

In addition to the standards described above, the BIF owner/operator must fulfill requirements for establishing an automatic waste feed cutoff system. The facility must also conduct inspection and monitoring, maintain certain records, and close in accordance with given regulations. 

The head of the Quality Assurance (QA) Unit should be asked to demonstrate the systems and methods for QA inspection and monitoring of studies, and the system for recording observations made during QA monitoring. Inspectors should check ... 

Stack exhaust fans 4 5 (Transports the ventilation system filtered exhaust out of the HCF stack and controls flow rate through the stack HEPA filter.) Shutdown due to loss of electrical power, fen electrical failure, or plugged HEPA filter Onsite or offeite electrical or mechanical malfunction Control and monitoring system indications and periodic maintenance inspections Two parallel fens provide redundant flow. Complete loss of ventilation flow if both fens stop. Loss of flow forces shutdown of HCF ventilation system. 

Zone 2A active damper Ap control system (Provides active Ap adjustment for control of contamination from Zone 2A to Zone 2 and HEPA input air filtration.) Fail closed causes increased Ap to from Zone2A Zone 2 Mechanical failure of active damper, loss of air pressure for damper pneumatic actuator, programmed control system failure, or plugged filter Control and monitoring system indications and periodic maintenance inspections Leak rate through airlock doors and Room 109 shielded door may increase to reduce Ap somewhat No effect to positive effect since reduced flow may extend residence time in Zone 2A HEPA and charcoal exhaust filters... 

Control and monitoring system indications for flow rate at the SCB and periodic maintenance inspections... 

Vacuum supply line from MER to Zone 2A (Transports vacuum for chemical processing.) Broken or plugged line Mechanical malfunction or worker error Control and monitoring system indications and periodic maintenance inspections None Loss of all vacuum for controlling noble gas and halogen releases and for moving process fluids. 

The amount of special safety training needed for the safety reps is minimal. They need to know the hazards and safe work practices in their part of the plant. The safety reps should also be trained in conducting workplace safety inspections and monitoring the safety program s effectiveness. The safety reps will prove to be very useful sources of information when it comes time to update the system safety analysis or make a change in the process. 

Even the best design cannot be expected to anticipate all conditions that may arise during the life of a system. Corrosion inspection and monitoring are used to determine the condition of a system and to determine how well corrosion control and maintenance programs are performing. Traditional corrosion inspection practices typically require planned periodic shutdowns or service interruptions to allow the inspection process. These scheduled interruptions may be costly in terms of productivity losses, restart energy, equipment availability, and material costs. However, accidental interruptions or shutdowns are potentially much more disruptive and expensive. 

The risk assessment must be maintained. This means that any significant change to a workplace, process or activity, or the introduction of any new process, activity or operation, should be subject to risk assessment. If new hazards come to light, then these should also be subject to risk assessment. The risk assessment should in any case be periodically reviewed and updated. This is best achieved by a suitable combination of safety inspection and monitoring techniques, which require corrective and/or additional action where the need is identified. Typical monitoring systems include ... 

Stractnres, systems and components important to safety, except as described in para. 5. 44, shall be designed to be calibrated, tested, maintained, repaired or replaced, inspected and monitored with respect to their functional capability over the lifetime of the nuclear power plant to demonstrate that rehability targets are being met. The plant layout shall be such that these activities are facilitated and can be performed to standards commensurate with the importance of the safety functions to be performed, with no significant reduction in system availability and without undue exposure of the site personnel to radiation. 

Today s senior construction safety professional is likely to be professionally qualified by examination or by acquiring vocational qualifications, and a corporate member of the professional body (lOSH). Following established syllabi for self-development equips the professional to set up control systems for others to follow. Safety professionals whose role is solely one of inspection and monitoring are often not so highly qualified, and typically hold a lower grade of lOSH membership. Nevertheless, the intention has always been... 

Criterion 29. Calibration, testing, maintenance, repair, replacement, inspection, and monitoring of items important to safety Include physical security systems worker exposures should be ALARA (not just below specified limits). 

Other technologies that have been used for atmospheric corrosion sensing include electrical resistance (ER) sensors and more recently fiber-optic sensing systems. Additional information may be found on this topic in Chap. 6, Corrosion Maintenance Through Inspection and Monitoring. 

Testability is a necessary part of the design both for the system reliability described in paras 5.32-5.42 of the Reqniranents for Design and for the in-service testing, inspection and monitoring reqnired in paras 5.43-5.44 of the Requirements for Design. In addition, the protection systan should meet the special requirements for reliability and testability described in paras 6.81-6.84 of the Requirements for Design. 

To operate the MPI or LPI equipment at stable and reprodncable inspection conditions modern units are equipped with a monitoring and control system called "Quality Assurance Package" (termed QAP). The QAP System is ba.sed on an industrial PC with a bus system and field sensors. It ensures that process parameters important for the reproducability of the MPI or LPI are controlled an held between defined limits by a central computer system. It can be adapted to any old system, as well as integrated into new systems. 

Boyce, M.P., and Cox, W.M., Condition Monitoring Management-Strategy , The Intelligent Software Systems in Inspection and Life Management of Power and Process Plants in Paris, France, August 1997. 

A comprehensive program that includes predictive maintenance techniques to monitor and analyze critical machines, equipment, and systems in a typical plant. Techniques include vibration analysis, ultrasonics, thermography, tribology, process monitoring, visual inspection, and other non-destructive analysis methods. 

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