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WILHELMSEN IMPROVES SAFETY OF MOORING ROPES

Tuesday, May 28, 2019 

Wilhelmsen Ships Service says that despite the industry’s best intentions, such as designating hazardous snap-back zones on mooring decks, or the drawing up of detailed line management and mooring plans, mooring remains an incredibly high-risk task.

The company adds that serious, often fatal, accidents continue to happen with depressing regularity, with seemingly no end in sight. As it seems impossible to accurately calculate or predict just how fibre ropes will behave when they fail and snap, Wilhelmsen Ships Service has instead developed a solution to reduce a rope’s recoil, or snap-back potential.

The Snap Back Arrestor (SBA) is an energy absorbing core which sits within the company’s Timm Master 12-strand plaited, mixed polymer rope. With the appearance of a rope, held within the heart of a 12-strand mooring line, if the outer, load-bearing construction breaks, the SBA absorbs the snap-back forces, transforming them from a potentially deadly snap, to a much safer, slump.

The SBA solution has been developed over a seven-year period, culminating in DNV GL verification in May 2016. Since then the Timm Master 12 SBA has been exhaustively tested, passing both TCLL testing and OCIMF MEG4 tests, in both dry and wet conditions.

Veronika Aspelund, Business Manager, Ropes, Wilhelmsen Ships Service said: “The Snap Back Arrestor is a massive step forward in maritime rope safety, significantly mitigating the considerable risks personnel are exposed to during mooring. Using the same material composition as our best-selling premium Timm Master 8 rope, Timm Master 12 SBA is buoyant, light, reliable, features anti-twist colours and offers one of the best strength-to-weigh ratios on the market. These are all of course great selling points, but the safety element hidden within its core is truly unique and could quite literally be a life-saver”.

Now type-approved by DNV GL the Timm Master 12 SBA is produced according to ISO 9554:2010 and ISO 10556:2009 and tested according to ISO 2307:2010. It has also been tested according to the latest 4th Edition of the OCIMF Mooring Equipment Guidelines. The Snap Back Arrestor technology will be rolled out across Timm’s entire 12-strand range.

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