- Fire Detection Systems Not Rated for Marine Use Raise Alarm.
- Coast Guard Warns of Gaps in Fire Safety Certification.
- Non-Type-Approved Fire Systems May Fail at Sea.
The U.S. Coast Guard (USCG) has raised some serious concerns about the safety and reliability of fire detection systems found on towing vessels. These systems might be certified by Nationally Recognised Testing Laboratories (NRTL), but they haven’t received the official type-approval from the Coast Guard, reports USCG.
NRTL-Certified Systems Might Not Be Fit for Marine Use
Even though NRTL certification implies that these systems meet general safety standards, the Coast Guard warns that many of them aren’t rated or tested for the tough conditions found at sea. This leaves components at risk of failing when faced with common marine challenges like high humidity, saltwater exposure, vibrations, and temperature swings.
Lapses in Oversight and Safety Recall Procedures
Unlike systems that have been type-approved by the Coast Guard, there’s no formal requirement for manufacturers of NRTL-certified fire detection systems to inform the USCG about defects or recalls. This can lead to faulty components being used without the knowledge of vessel operators or inspectors.
Moreover, the certification letters and documentation for these systems often miss crucial information about the make, model, quantity, and location of the installed components. Without this information, it becomes tough to figure out if any systems are facing safety issues or if unauthorised changes have been made.
Dangers of Inadequate Maintenance and Testing
The lack of clear documentation and identification for fire detection equipment raises the chances of improper maintenance. Devices like heat and smoke detectors might not be tested properly or could be replaced at the wrong times, putting onboard fire safety at risk.
USCG Recommendations for Vessel Owners and Inspectors
The USCG recommends the following actions to improve safety and compliance:
- Follow Manufacturer Instructions: Install, maintain, and test fire detection systems per the manufacturer’s design manual, as required by 46 CFR § 142.330.
- Conduct Regular Testing: Annual inspections per 46 CFR § 142.240. Quarterly testing in accordance with 46 CFR § 143.245, under the vessel’s Towing Safety Management System (TSMS).
- Maintain Detailed Documentation: Maintain up-to-date records listing all fire detection system components by make, model, type, number, and location. These documents should be verified and certified by an authorized entity, per regulations under 46 CFR §§ 142.330 and 144.145.
- Register with Manufacturers: Register all system components with manufacturers and subscribe to recall notifications to stay informed about safety alerts.
- Replace Outdated Detectors: Non-restorable, fixed-temperature detectors should be replaced every 10–15 years, depending on the standard (manufacturer guidance or NFPA 72). Rate-of-rise detectors must be tested annually.
- Visual Inspections: Remove and replace any detectors that are damaged or have been painted over.
- Ensure Compatibility for Replacements: Only use replacement components that are technically identical or certified compatible with the existing system. Any changes must be re-inspected and re-certified by an authorised entity under 46 CFR § 142.330.
Continued USCG Monitoring and Enforcement
The Coast Guard will keep up its efforts to ensure compliance by conducting visual inspections, reviewing records, and testing systems during marine inspections. Vessel operators are encouraged to take proactive measures to make sure their fire detection systems are safe, certified, and well-maintained.
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Source: USCG
