• Boskalis crane vessel Bokalift 1 - copyright Boskalis
Boskalis crane vessel Bokalift 1 - copyright Boskalis

Electrical specialist Bakker Sliedrecht plays important part in conversion of Bokalift 1

13 March 2018

Electrical installation company Bakker Sliedrecht has played an important part in the conversion of Boskalis’ heavy transport vessel (HTV) Finesse into transport and installation crane vessel (HLV) Bokalift 1. After the official launch, Boskalis will deploy the vessel for building offshore wind farms, the installation and decommissioning of oil and gas platforms and salvage projects.

Due to its huge empty deck space of 165 by 43 meters and its mid-ship, 3000 tons revolving Huisman Crane, the Bokalift 1 can double the usual load of existing crane and transport vessels. Thanks to the innovative dynamic positioning 2-system (DP2) the vessel will remain stable at its position at all times.

During the conversion Bakker Sliedrecht was responsible for the supervision and coordination between the client and all participating electro technical parties. Both during the conversion at the Keppel shipyard in Singapore, the installation of the crane by Huisman in China and during the intensive FMEA tests in Cape Town.

During the conversion, the large ballasting tanks, which made the heavy transport vessel semi-submersible, were converted to give way to the requirements of diesel generators and switchboards. These are necessary for the new thrusters, which keep the ship in position. Because of DP2, Bakker Sliedrecht had to double install all electrical installations and drive systems - existing and new - in order to guarantee safe operations of the systems at all time. For example, in case of a thruster or generator failure or other calamities. This is of the utmost importance in offshore projects.

Bakker Sliedrecht coordinated all installations and the commissioning. All electrical installations, switchboards, engines and generators were produced in Sliedrecht or elsewhere in Europe and then transported to the yard in Singapore. In the second phase the company assisted in the installation of the crane. In the third phase, the crane vessel was subjected to a large number of tests in the Failure Mode and Effects Analysis (FMEA) at the coast of Cape Town.

"Bakker was ordered to complete the conversion in 12 months. We succeeded and that is a very swift lead time for such a project,” says project manager Johan van Hal. "For Boskalis, our know-how, practical attitude, reliability and flexibility were decisive for awarding us the contract.”

nieuws afbeelding Bakker Sliedrecht delivers electrical installations of the Coral EnergICE
26 February 2018

Bakker Sliedrecht has delivered the electrical installations of the Coral EnergICE. Anthony Veder will operate...

nieuws afbeelding Eneco awards maintenance contract to Bakker Sliedrecht for high- and low voltage installations of 24 wind farms
20 February 2018

Eneco has awarded a contract to Bakker Sliedrecht for maintaining the high voltage and low voltage installations...

nieuws afbeelding Croonwolter&dros and Bakker Sliedrecht to deliver complete electrical installation of integrated reel lay vessel for Subsea 7
13 February 2018

Croonwolter&dros and Bakker Sliedrecht have obtained the order to engineer, manufacturer, install and...

nieuws afbeelding Bakker Sliedrecht replaces sand pump drive of cutter suction dredger Huta 14
06 February 2018

Bakker Sliedrecht has successfully replaced the sand pump drive of the cutter suction dredger Huta 14. The...