As part of its ever-intensifying focus on marine fire safety, VIKING has reached agreements to distribute Bridgehill’s fire blankets and the Rosenbauer Battery Extinguisher System (BEST) to maritime customers worldwide.
The agreements are key outcomes of a project focusing on fire safety needs arising from the growing electric vehicle numbers moving by ship and more initiatives are to be added in the future.
Fires due to EVs
All cars carried by ship are classified as Dangerous Goods (DG). However, electric vehicle (EV) fires raise specific safety concerns because battery fires are notoriously hard to extinguish, but also because cars are stowed close together and the crew is not professional firefighters.
First responders are exposed to shock risks as well as fire, while lithium-ion battery fires spread low and outwards, and damaged cells can trigger thermal runaways.
Risk assessments
On a car ferry, it’s crucial to isolate the fire and smoke quickly first, to prevent the fire from spreading"
European Maritime Safety Agency ‘Guidance on the Carriage of Alternative-Fuel Vehicles in Ro-Ro Spaces’, recommends risk assessments for every vessel moving EVs and carriage of procedures for prevention and mitigation of EV fires. Recommended procedures included the use of “portable equipment (local water cooling etc)” and “a strategy to contain the fire”.
"It often takes a long time for a lithium battery to burn out which means it must be contained onboard as quickly as possible,” comments Louise Søgaard, Product Manager at VIKING Life-Saving Equipment. "On a car ferry, it’s crucial to isolate the fire and smoke quickly first, to prevent the fire from spreading to keep passengers and crew out of harm’s way.”
Bridgehill fire blanket
This risk scenario is the basis for the agreement with Bridgehill, whose Bridgehill fire blanket offers specific performance characteristics to deal with EV fires.
The company has already delivered several units to a major car carrier owner and to ferries worldwide, where its 6x8 m, 26 kg blankets can be deployed by two personnel and reused multiple times.
EN standards
Given its melting temperature is around 2,500oC; Bridgehill fire blankets can contain an EV fire comfortably"
Bridgehill founder, Frank Brubakken, says VIKING fully verified the performance of Bridgehill fire blankets while noting that no formal maritime standards exist covering fire blankets. “Tested according to EN standards, the product is nonetheless more than fit for marine safety purposes."
"Given its melting temperature is around 2,500oC; Bridgehill fire blankets can contain an EV fire comfortably until other steps are taken or the vehicle is removed. At a minimum, each car deck should have its fire blanket.”
Rosenbauer BEST system
The Rosenbauer BEST system, meanwhile, has been purpose-developed to extinguish high-voltage lithium-ion batteries in EVs, with the firefighter using a piercing stinger attached to a hose to penetrate the battery housing and flood the cells, rather than the deck. Direct cooling stops the chemical reaction in the cells and the consequent thermal runaway.
“The BEST system has been tested with all known battery types used by European and American manufacturers of passenger cars, trucks, and vans, in capacities of up to 120 kWh,” says Louise Søgaard. “European emergency response services have also tested the system extensively and provided valuable feedback on its practical applications.”
Safe, fast, and effective
René Kofod, Center Manager at the Slagelse Rescue and Safety Center, Denmark, has spent two years overseeing trials within the ELBAS project (Electric Vehicle Fires at Sea: New Technologies and Methods for Suppression, Containment, and Extinguishing of Battery Car Fires Onboard Ships).
He says the Danish Institute of Fire and Security Technology project has confirmed that firefighting tools which deliver water to the battery cell through intermediary spikes or spears are safe, fast, and highly effective.
Induction
Sensors in the battery pack show temperatures dropping from 600 degrees to 60 degrees"
“This type of approach is a new development that you won’t find in the STCW Code,” says René Kofod. “An induction process is certainly necessary to learn about hose connections, pressure set-ups, and so on."
"But the technology is very efficient. The cooling process starts immediately after penetration: sensors in the battery pack show temperatures dropping from 600 degrees to 60 degrees within about 15 minutes, with a flow of about 25 liters of water per minute. Other solutions can use 10 or 20 times that amount, which can cause problems on a ship.”
state-of-the-art technology and expert guidance
With the increasing demand for electric vehicles, VIKING maintains its position as a pioneer in fire safety solutions, offering state-of-the-art technology and expert guidance.
Leveraging extensive knowledge of EV fire risks and agility in adapting to evolving market dynamics, VIKING is ready to assist industry operators worldwide in their commitment to safety in the era of electric mobility.
