Rope access facilitates power station’s NDT inspection



Magnetic particle inspection (MPI), a form of non-destructive resting (NDT), is far more cost-effective and efficient as a maintenance method if it is carried out using rope access. This was proven recently at a large coal-fired power station in Limpopo, where Skyriders Access Specialists was called upon to examine three specific areas in a large boiler. Installing scaffolding for such an operation is both costly and time-consuming, increasing the downtime of the power station itself. Instead, Skyriders simply had a two-person team of qualified rope access technicians abseil into the structure to carry out the inspection at the exact location where it was required. MPI is mainly used to detect surface and shallow subsurface discontinuities in ferromagnetic materials such as iron, nickel, cobalt, and some alloys. The process involves direct or indirect magnetisation of the area in question. The inspection process itself took a matter of hours, with no recordable indications of any problems.

Contact Mike Zinn, Skyriders, Tel 011 312-1418, mike@ropeaccess.co.za

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Source: EE plublishers

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