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Michiel Van Der Geest News

26 Sep 2014

New Recommendations to Avoid Jacking System Failure

A joint industry project on jacking system maintenance and inspection has resulted in a new DNV GL Recommended Practice. This provides guidance to ensure the correct and safe functioning of rack and pinion style jacking systems. The objective is to reduce the risk of gear failure, resulting in lower costs and higher availability throughout the asset’s life time. The consequences of jacking gear failure can be severe and, while the problem is acknowledged by the industry, the correct maintenance and inspection of the jacking systems have proven to be challenging due to the high turnover of people with specific knowledge on board, the evolving nature of the systems and the intermittent use of the systems.

01 May 2012

DNV’s new Jack-up Rule Book Hits the Street

A new dedicated rule book for self-elevating units will guide designers and yards to class their designs and newbuilding projects. The rule book clearly explains the DNV and international regulations and standards. Adaptations from the traditional Offshore Standards include additional class notations and alignment of material and jacking systems requirements based on feedback from industry experts and adapted survey procedures. This dedicated rule book for self-elevating units…

01 May 2012

DNV Launches new Jack-up Rule Book

The new rule book clearly explains the DNV and international regulations and standards. Adaptations from the traditional Offshore Standards include additional class notations and alignment of material and jacking systems requirements based on feedback from industry experts and adapted survey procedures. This dedicated rule book for self-elevating units clearly provides the specific considerations required for Jack-Ups to prevent interpretations that may lead to imposing additional requirements without any safety benefits. These considerations are especially relevant for Jack-ups, taking into account their dual fixed/ floating nature. DNV’s Offshore Class Product Manager, Michiel van der Geest, explains that “We have focused on making a user friendly rule book with clear guidance.