Our mission is to protect life and assets. That is why we test our cable and pipe transits far beyond the required protection levels. The DNV Spadeadam Research and Testing in the UK carried out a program of gas cloud blast tests on several seals, proving that our solutions withstand gas explosions – by a significant margin.
The test consisted of five violent gas explosions of increasing severity. DNV used a large explosion chamber with a volume of 183 cubic meters to expose our installed cable and pipe seals to the effects of long duration gas explosions. The explosion scenario was, in fact, more severe than the penetration seals are likely to encounter in the real world.
Reassuring results
DNV measured the average peak overpressure, duration and impulse at the test samples and verified their condition at the end of the program. Here is what DNV noted: “The test specimens remained firmly in place fixed to the concrete slabs. They remained structurally unchanged from their original condition. No gaps within the transit systems or loose fixings were observed. Some minor cosmetic damage was observed following the tests, including burn marks and peeling of material”.
“We achieved great results,” says Linus Liljequist, Test and Certificates Engineer at Roxtec, who witnessed the tests. “We see a lot of use cases for tight sealing and proven blast load protection within oil and gas, critical power infrastructure and defense.”
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DNV is an independent expert in risk management and a trusted voice for many successful and forward-thinking companies. The DNV Spadeadam Research and Testing facility is a large-scale hazardous laboratory inside an RAF base in the UK.
