Providing UL-Certified VELA Rack Computers for the Nuclear Industry

Through our 360 assessment Impulse recognise the need to ensure site integration is made simple for our clients end customers, as connections to each PC may differ depending on the age of the control system. Impulse Design Engineers also consider the requirement for a system UL certification, which would affect component choice at the design stage. Whilst not identified in the initial brief, it also becomes apparent that the system needs a flexible approach to expansion, as some ageing systems use older expansion bus technologies.

In order to facilitate the UL certification requirement, Impulse design engineers select a range of 19" long-life rack PC components from Advantech. Project engineers then engage with Advantech production engineers in their UL-certified factory to create the UL technical file, and nominate a range of IO and communication expansion cards within it, giving flexibility at the production stage.

Working with Advantech, Impulse production engineers specify the base build for each retrofit project. Systems are then fitted with the requisite I/O and communication cards, along with necessary fibre optic terminations. Moreover, a full system schematic label is attached to the rack chassis, with very clear I/O connection instructions tailored for each end customer site. Finally, operating system installation and customer image is applied and a thorough stress and soak test performed before despatch.

Owing to the varied nature of the systems, a comprehensive spares package is arranged with the customer to facilitate the needs of the different projects. Global service support is made available via Advantech's presence in 26 countries worldwide, and first-line technical support is provided by Impulse, always free of charge and for the lifetime of the project.