Smoke from a container stowed six tiers down has a long way to travel before anyone on the bridge knows about it. On most cargo ships it does not travel to a detector at all. The air is drawn out of the hold and carried to a detection cabinet somewhere else entirely, and everything about […]
31
Aug
Aug
A fire alarm panel that blinks out for two seconds during a blackout test will be written up. Detection has to continue while the ship transfers between supplies, and the arrangement that makes that possible is specified in far more detail than most retrofit packages allow for. Power supply is also the part of a […]
28
Aug
Aug
A chafed cable behind a deckhead panel rarely reaches a superintendent’s morning report. On an addressable fire detection loop, that single point of damage decides whether the control panel keeps watching the rest of the accommodation block or drops an entire section from the display. Loop architecture settles that question long before the fault occurs. […]
28
Jul
Jul
Fire alarm upgrades don’t happen often, which is why they’re so easy to get wrong. Most fleet owners go a decade or more between major system overhauls, and by the time an upgrade rolls around, the terminology has moved on, the technology has changed, and the decision between an addressable system and a conventional one […]
24
Jul
Jul
Standing in front of a supplier’s catalogue, deciding between a single-sensor detector and a multi-sensor unit can feel like splitting hairs. Both claim to detect fire, both carry the right certifications, and both come with a price tag that looks reasonable on paper. But the choice matters more than it first appears, particularly once you […]
