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C3 Containment Shelter

As part of the nuclear decommissioning process, several Magnox sites are clearing underground pipework that could contain radiological and environmental hazards. During some of the decommissioning, engineers need to set up a Contamination Level 3 shelter (C3). Historically, a smoke-tight enclosure would be built on site using a scaffolding structure that could take days to set up and test. This often meant significant time delays before decommissioning work could resume; there is not currently an off-the-shelf tent product that is fit for purpose, cost efficient and quick to assemble. Project Engineers from the Bradwell decommissioning facility identified a requirement for a bespoke C3 shelter of this nature.

The Solution

GRS’s R&D team worked collaboratively with Bradwell Project Engineers to develop the SF20 C3 shelter. The shelter is a variation of the tried-and-tested Safeframe® range of shelters used nationally by the Emergency Services. The SF20 can be deployed in just 10 minutes with 3 personnel. It is incredibly robust and weather resistant. The shelter has an integrated cell which can be detached in the event of contamination, leaving the shelter frame and canvas available for re-use. The cell offers a 3-stage system consisting of C2, airlock and C3. Area C3 has an access area for workmen to operate beneath ground level. Each area can be independently sealed with zippers to prevent leakage if potentially harmful gas is discovered in area C3.

Click Here to Read the Nuclear-Use Containment Shelters Case Study