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    DNV publishes standard underwater deployment and recovery standard

    Publications // November 29, 2012

    DNV has published its new standard for Underwater Deployment & Recovery Systems, DNV-OS-E407.

    The standard provides a framework for the verification and certification of underwater deployment and recovery systems using technology qualification methodology.

    The development of the new standard was based on wide industry involvement. It is  the result of a Joint Industry Project involving 30 companies representing the whole value chain: yarn, rope and winch manufacturers, installation companies and operators.

    “The initial idea was to provide a set of requirements giving directions for how to qualify that a fibre-rope-based system is safe, reliable and fit for use in underwater operations,” said project manager Tone Julseth Paulsen, a senior engineer in the Polymers, Fibre and Composites Group in the Materials Laboratory Section of DNV Maritime and Oil & Gas.

    The standard’s scope is wider than the one produced in Phase 1 of the Joint Industry Project, which looked at (fibre-rope-based) Deepwater Deployment & Recovery Systems.

    Other types of Underwater Deployment & Recovery Systems defined by the standard are subsea systems utilising steel-wire ropes and hang-off systems using fibre ropes as pendants to extend the reach of an offshore crane.

    All of these systems must meet the same assured dependability requirements in order to comply with the standard.


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