Concerning the health of people on board ships and/or platforms we are confronted with a confusing collection of laws and legislation. In the Netherlands alone we have the Arbo-law (Dutch Labour Act), the IMO, the schepelingenbelsuit (Dutch Crew Members Decree) and the Inspectie Verkeer en Waterstaat (Dutch Ministry of Transport, Public Works and Water Management Inspectorate). And then of course, ships also leave Dutch territorial waters, meaning that we also have to take foreign laws and legislation into account.
Practical example: Wingate platform
When considering the legislative situations for the quality of drinking water on board, we can generally (with the necessary supplements and exceptions) conclude as follows: in the territorial waters and on the continental shelf, the legislation of the coastal state applies, while outside territorial waters, the legislation of the state of registration applies. A practical example:
Last summer the new Wingate Wintershall platform was positioned in the sea on the English continental shelf. This platform is mostly unmanned, though there is personnel on board occasionally, for example, for maintenance. The platform therefore has accommodation with a drinking water supply that is subject to British legislation. Consequently Wintershall entered into discussions with the British legislators to ensure that the installation was safe. The challenge lay in the fact that sometimes there is no one on board for weeks, while standing water in the pipes must be avoided by all means.
The platform under construction at the shipyard
| | For the design of an optimal technical solution, Wintershall called on Econosto for help. In collaboratin with Kemper we developed a system that ensures the throughflow in the drinking water system.
The Wingate platform after installation at its final location
All tap points on board are thus installed to be throughflow using Kemper flow distributors (venturi) to ensure that the whole system flows through as soon as a tap is turned on at the end of the pipe. To prevent contamination of the drinking water, there is alse a valve installed at the end of the pipe that, under the control of a master unit, is opened for five minutes each week.
In addition, a temperature flush is installed which – as soon as the water temperature rises above 25°C – flushes the installation until the temperature has dropped back to 23°C. The master unit can be set locally, but also remotely (via a PC) in accordance with the applicable legislation. Wintershall has fully certified this design and is very happy with the final result.
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发表于 2012-2-8 14:57
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