Power Plant Inspection Services

Power Plant Inspection Services are a critical part of the safety of power generation assets. Damage to equipment and flaws in plant infrastructure can result in accidents that are hazardous to plant personnel and the environment. Because of our advanced access capabilities, MISTRAS can inspect and service assets that are inaccessible by conventional means.

Nondestructive testing
Nondestructive testing (NDT) is an important tool for assessing the condition of power plant equipment. Power generation plants have undergone many changes over the years, including an increase in overall efficiency and a greater focus on quality materials. Despite the improvements, exposure to harsh operating conditions can lead to unexpected failures. Nondestructive testing can help identify these flaws early on, helping to protect plant equipment from catastrophic failures. It is also useful for refurbishment and enhancement of existing power plants.

Nondestructive testing provides operators peace of mind, while preventing future accidents and extending the life of components. It can also help determine if welding procedures are effective, and ensure compatible materials are used. This can prevent welding defects. Nondestructive testing is an integral part of most industries.

Eddy current
Eddy current testing is an inspection technique that uses an electric current to measure the thickness of steel. It is used in a variety of applications, from crack detection to identifying corrosion underneath an aircraft’s skin. It is also useful for monitoring the effects of heat treatment, and detecting the thickness of nonconductive coatings over conductive substrates. There are several different types of instruments, including field portable and fixed system models.

Eddy current testing is a valuable tool for refineries. It can help refineries to prevent tube failures, which are costly and disruptive. A regular eddy current inspection can identify failing tubes before they cause catastrophic failures, and minimize plant downtime. Additionally, early detection of failure mechanisms helps plants to develop effective operation strategies and budget accordingly for equipment repair.

Ultrasonic testing
Ultrasonic testing is an extremely effective technique for detecting flaws in many materials without damaging them. For example, periodic inspections of pipe or vessel welds or tanks can detect corrosion and growth of known flaws before they lead to a complete failure. This technology is used for many different purposes in many different industries. This nondestructive technique is ideal for materials with dense crystalline structures. It can be used successfully on concrete, plastics, composites, and ceramics.

Ultrasonic testing requires highly trained technicians to perform. The equipment used in this method includes a transducer, pulser/receiver, and display. Depending on the application, different types of transducers can be used, including contact transducers to check the integrity of long pipes, wheel transducers to examine internal or external surfaces, and remote transducers for measuring thickness at varying angles. Using a flaw detector gauge to process the ultrasonic signals, ultrasonic testing companies can create waveform displays of hidden flaws.

Flyability
Using Flyability of power plant inspection services can save time and money, not to mention the health and safety of workers on the ground. The company has already tested its Elios 2 at several nuclear facilities. According to inspectors, the Elios 2 helps cut downtimes and removes the need for scaffolding and temporary structures. In addition, inspectors report that the process is repeatable and has become a regular part of their new workflows.

Drones from Flyability are equipped with special sensors that allow them to operate safely in confined spaces. They also have the LiDAR capabilities that enable them to collect detailed data and produce 3D maps, which is particularly important for nuclear plants. They can even operate in environments that are too dangerous for human inspectors.

NRC
The NRC Power Plant Inspection Services program involves four phases of inspection. The first phase supports an application for an early site permit and the second phase supports a combined construction and operating license. In the first phase, the NRC inspectors verify the integrity of ESP, COL, and SSC data and conduct walkdowns of selected in-scope SSCs. In the second phase, the inspectors verify compliance with the quality assurance program. The third and fourth phases support construction activities and preparations for operation.

NRC inspections can be routine or triggered by specific events and problems. When inspections are performed, NRC staff evaluate each violation and determine if it affects the safety of the plant. If the violation is of low safety significance, it will be reported in the inspection report but will not result in a formal enforcement action. However, the NRC may review the issue during future inspections.