What is fire main system in ship?
A sea water supply system for fire hydrants. It consists of sea inlets, suction piping, fire pumps and a distributed piping system supplying fire hydrants, hoses and nozzles located throughout the vessel. Each vessel is to be provided with at least two main fire pumps.
What is fire and GS pump?
Main Fire Pumps: They are electrically driven from the main supply of the ship. It is very common to find them installed near general service pump and ballast pumps. The general service pump lines are interconnected with the fire main and at times are used to provide water to the fire system.
What is fire water mains?
A pumping system that provides a sufficient flow of water to extinguish the fire. 3. A header network of pipes, often in the form of a ring main that transfers the water from the pumps to the fire.
What are fire fighting equipment onboard ships?
There are five main types of fire extinguishers used on ships:
- Soda Acid Fire Extinguisher.
- Water Extinguisher.
- Foam Extinguisher – Chemical and Mechanical.
- Carbon Dioxide Extinguisher.
- Dry Powder Extinguisher.
What type of system is fire?
mobile operating system
Fire OS is a mobile operating system based on the Android Open Source Project and created by Amazon for its Fire tablets, Echo smart speakers and Fire TV devices.
What does fire main mean?
Definition of fire main : a pipe for water to be used in putting out fire.
What is PSI in fire pump?
All new systems are required to be tested hydrostatically at a minimum pressure of either 200 psi (13.8 bar), or 50 psi (3.4 bar) above the maximum discharge pressure, whichever is greater, at the fire pump discharge flange.
What are fire pumps called?
Centrifugal pumps
Centrifugal pumps are the most common fire pumps and are used with most systems. With centrifugal pumps, pressure is developed principally by the action of centrifugal force or spinning.
What is fire fighting system?
A fire fighting system is an activity of prevention during a fire spread in building, home or warehouse with the use of proper fire safety equipment like extinguisher, hose reels, fire monitors, nozzles and hose pipes.
What is fire equipment called?
Fire apparatus is divided into seven categories by NFPA Standard 1901: Pumper Fire Apparatus, Initial Attack Apparatus, Mobile Water Supply Apparatus, Aerial Apparatus, Quint Fire Apparatus, Special Service fire apparatus, and Mobile Foam fire apparatus.
What is a fire main on a ship?
Water is the chief fire fighting medium on a ship and the fire main is the basic installation for fighting fires. The system shown below has two independently powered pumps which are also used for general service and ballast. These pumps supply two engine room hydrants and the deck main through the isolating valve.
How does a ship’s emergency fire system work?
A ship’s main emergency fire system consist of a specific number of fire hydrants located at strategic positions across the ship. A series of dedicated pumps are provided to supply to these fire hydrants. The number and capacity of pumps required for a particular type of ship is decided by an international governing authority.
How many fire pumps are there on a ship?
Moving on, the next most important machinery in fire main system on ships are fire pumps. There are generally two fire pumps provided on the ship along with one emergency fire pump also. But in Ultra Large Crude Carrier (ULCC) one more fire pump is provided on the forward side of the ship about which we will discuss later on in this article. 1).
What are the causes of ship fires?
Causes for ship fires tend to differ from those common on land, at least in part, for 2 main reasons. The first is electricity on vessels. You already know that electricity and water don’t mix, and when they do? Fire is often the outcome. The second reason is the types of materials used on ships, and their flammability.