USCG Marine Safety Alert 05-12

Office of Commercial Vessel Compliance, Washington, DC
Monday, December 31, 2012

Pressure Switch Location for Fixed Fire Suppression Systems Where's yours located?

 

This safety alert addresses the location of fire suppression system pressure switches aboard vessels. These critical components sense the activation of the system and then electrically secures the ventilation systems operating in the protected space.  Securing the ventilation is essential in extinguishing a fire onboard a vessel. It assists in isolating the fire within the space, minimizes the introduction of additional oxygen to fuel the fire and prevents the loss of fire suppression agents from the space.

 

Recently, a vessel with an installed fixed CO2 fire suppression system, suffered extensive damage due to a fire that started in the engine room. During the firefighting efforts the crew reported that the engine room ventilation could not be secured.  A post casualty damage survey of the vessel revealed that the pressure switch used to secure the ventilation was located within the engine room. See the photograph of the damaged pressure switch at the right and new switch below.

 

Fixed CO2 systems on inspected/regulated vessels need to be type approved and installed in accordance with applicable regulations; 46 CFR 25.30-15, 46 CFR Subpart 76.15, 46 CFR Subpart 95.15, 46 CFR 118.410, etc.  These regulations require all controls and valves for the operation of the system to be outside the space protected, and notes they cannot be located in any space that might be cut off or made inaccessible in the event of fire in the protected spaces.  The Coast Guard considers pressure switches that are used in such systems a "control."

 

For Uninspected Towing Vessels, 46 CFR 25.30-15 (b) requires installation in accordance with 46 CFR Subpart 76.15 and reiterates the location requirements.

 

The Coast Guard strongly reminds Owners and Operators of vessels with installed fixed fire suppression systems to ensure that these switches are properly located aboard their vessels.  If the pressure switch or switches are located within the space being protected, they should be relocated by a properly trained fire suppression service technician.  Doing so will assist in ensuring system functionality and accessibility in the event of an emergency.  Failing to do so could have serious consequences to the vessel, its crew and the environment.


This safety alert is for informational purposes only and does not relieve any domestic or international safety, operational or material requirement. Developed by the Office of Commercial Vessel Compliance, Washington, DC.

Maritime Reporter August 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Marine Equipment

Fishing Boat Catches Fire off Maine

U.S. Coast Guard crews from Station South Portland, Maine, and Air Station Cape Cod responded to a report of a fishing boat fire Wednesday, about six miles from Jeffreys Ledge,

Drydocks World World’s Largest Turret

Drydocks World marked a milestone in completing the world’s largest turret mooring system. At almost 100 meters high, weighing over 11,000 tons and with a diameter of 26 meters,

N-KOM: New VLCC Size Floating Dock

Nakilat-Keppel Offshore & Marine (N-KOM), the joint-venture shipyard of Keppel Offshore & Marine and Nakilat, continues to see strong interest for its ship repair services in 2015,

Coast Guard

Fisherman Hit by Parted Line Lifted to Safety

A fisherman struck and injured by a parted line was medevaced south of San Juan Island and transported to Olympic Medical Center in Port Angeles, Wash. Thursday morning.

Fishing Boat Catches Fire off Maine

U.S. Coast Guard crews from Station South Portland, Maine, and Air Station Cape Cod responded to a report of a fishing boat fire Wednesday, about six miles from Jeffreys Ledge,

Malaysia, Indonesia Team up to Fight Piracy

An increase of incidents of piracy and armed robbery in SouthEast Asia has prompted Malaysian and Indonesian law enforcement to form a joint rapid deployment team in response,

Maritime Safety

Fisherman Hit by Parted Line Lifted to Safety

A fisherman struck and injured by a parted line was medevaced south of San Juan Island and transported to Olympic Medical Center in Port Angeles, Wash. Thursday morning.

Fishing Boat Catches Fire off Maine

U.S. Coast Guard crews from Station South Portland, Maine, and Air Station Cape Cod responded to a report of a fishing boat fire Wednesday, about six miles from Jeffreys Ledge,

Two Injured in Pipeline Blaze off Louisiana

A natural gas pipeline has caught fire approximately 25 miles south of Marsh Island, La., Wednesday, injuring two vessel crew members working on the pipeline, according to the U.

Government Update

Oil Soars in Biggest One-day Rally in Years

Oil rocketed as much as 10 percent higher on Thursday, posting its biggest one-day rally since 2009 as recovering equity markets and news of diminished crude supplies

Great Lakes Shipyard to Build Guatemalan Harbor Tug

U.S. shipbuilding and repair yard Great Lakes Shipyard informs it has signed a contract to build another of its HandySize Class, 3,400 HP twin-screw tugboat for

US Rep. Crenshaw Visits Newport News Shipbuilding

Shipbuilder Huntington Ingalls Industries (HII) hosted Rep. Ander Crenshaw (R-Fla.) Tuesday for a tour of the company's Newport News Shipbuilding division.   Ken Mahler,

 
 
Maritime Security Maritime Standards Navigation Port Authority Salvage Ship Electronics Ship Repair Ship Simulators Shipbuilding / Vessel Construction Winch
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1663 sec (6 req/sec)