Rescue Ladders Illuminated by R. STAHL TRANBERG Can Save Lives
Published: February 25, 2022
By Simon Andreas Skaar
Along the Norwegian coast, there are several wharves with too few rescue ladders. For many years this has been a problem for people who have fallen into the sea, and unfortunately made a negative contribution to the drowning statistics. The Port of Stavanger is surrounded by restaurants and pubs, with a bustling life along the wharves in the evening and at night all year round. Sadly there have also been tragic drowning accidents here in recent years. The Port of Stavanger wanted to do something about this and therefore invited Rogaland Fire and Rescue, Rønning Elektro and R. STAHL TRANBERG to a brainstorming session to improve the conditions.
The Port of Stavanger has little difference between high and low tide. Still, there are challenges with the inner wharves being flooded when storm surges occur. For example, some ladders with lighting would come underwater when the water level rises. In addition, one must consider that large ships sometimes squeeze the fenders flat and then also hit the ladders that are mounted between the fenders. Vandalism of the installations was also a factor that had to be taken into account.
R. STAHL TRANBERG’s good relationship with the Port of Stavanger and Rønning Elektro brought us together to test a special type of lighting in January 2021 – in rain and wind. We then tested which colours gave the best lighting on the ladders, which were painted with yellow RAL 1016 paint. It was important that the lighting could be underwater for a few hours. The light should not dazzle the navigators on ships calling at the harbour. They should also shine about 2 meters out into the sea so that you could perceive the bright spots at the wharf ladders if you were in the sea. Rogaland Fire and Rescue has been involved in testing which colours gave the best results based on the above criteria.
Eventually, it was concluded that LED lights with a colour temperature of 4000 kelvin gave the best result. The LED lighting from R. STAHL TRANBERG was chosen with an IP degree of IP66 / 68, with pre-assembled cable lengths of 25 and 50 meters from the factory. This is an entirely tight Ex version with an LED insert in a tube mounted in a protective cap in stainless steel, SS316L. The cables are laid in pipes cast into the wharf to the nearest electrical cabinet. As shown in the pictures, the lighting is mounted between the ladder beams on top of the quay so that ships cannot squeeze the flat ones, nor are they exposed to vandalism. Life expectancy is about 100,000 hours, and they have now been in operation for half a year. They have been underwater through the winter storm surge.
For us at R. STAHL TRANBERG, this has been a meaningful project to be part of. We have also received countless new requests from various ports along the coast. There is clearly a need here, which we have hopefully found a very good solution for. Being involved and helping to save lives is one of the most meaningful business models one can have.