Fire Fighting Regulation By SOLAS

For this post I would like to quote SOLAS regulation for Fire Fighting and simplified it from SOLAS Version 3 (2004), Regulation 10 and some circular form SOLAS Version 1, Regulation 4.

It's my own notes, and try to understand the basics but still a lot to learn. 

  

CONTENT:

Water Supply System Consist of:

1) Fire pump

2) Fire main 

3) Fire Hydrant 

4) Fire Hose

Note: 
THE SENTENCES HIGHLIGHTED WITH YELLOW COLOUR EXPLAINED THROUGH PICTURE FROM MARINE INSIGHT, 
THE SENTENCES WITH GREEN HIGHLIGHTED IS SPECIFIC FOR EMERGENCY FIRE PUMP.
THE BLUE COLOUR IS FROM SOLAS VERSION 1, NOV 2000. 

Fire Pump 

1) Reg 10, 2.2.1

• Sanitary, Ballast, Bilge or General Service may be accepted as fire pump.

2) Reg 10, 2.2.2 

•  Numbers of independently fire pumps........

3) Reg 10, 2.2.3

•  Location not contiguous with boundary machinery space class A, or space of main fire pump. (if not practical the common bulkhead between two space must be insulated to standard of fire station)
•  No direct excess to Machinery Space/Main Fire Pump(if not practical Administration may accept arrangement by means airlock with door A-60 Class Standard and other door being at least steel, gas tight, self closing without hold back arrangement. Alternatively watertight door capable being operated from space remote in machinery space or from emergency fire pump space)
• Ventilation as far as practical, possible drawn smoke from machinery space fire.

4) Reg10, 2.2.4 

• Total capacity fire pump by Rule of bilge pump 4/3 or 1/2......
• Not less 80% total capacity required divided by minimum number of pump 
• Each pumps capacity not less 25m3/hrs, with 2 jets of water.

5) Reg4(Circ/MSC) 

• Emergency fire pump independent driven.
• Emergency fire pump,min pressure with 2 jets water: 0.25N/mm2, Capacity not less 40% of total capacity of fire pumps. 
• Able automatic start or remote from navigation bridge/fire station.
• Have own seachest.

6) Capacity 25m3/hrs with 2 jets 1/2 inch bore jets, horizontally @ 40feets
7) At independent sea suction and head suction not more than 4.5m at any trim & list condition.

Fire Main

1) Reg 10, 2.1.3

• Diameter of fire main pipes sufficient max req. for 2 fire pumps discharge simultaneously. For cargo ship, diameter pipes needed only to discharge 140m3/hr.

2) Reg 10, 2.1.4

• Isolation valve separate fire main within machinery space. When it's shut all hydrants, except in machinery space can have supplied water from Emergency or another fire pump.

3) Reg 10, 2.1.4.4

•  In tanker isolation valve shall fitted at poop front, protected & on tank at interval less 40m to preserve integrity in case fire/explosion

Fire Hydrant 

1) Reg 10, 2.1.4.2

• Have valve for each hydrant so any hose can be remove while fire pump running.

2) Reg 10, 2.1.6  

• Pressure at hydrants.......

3) Reg 10, 2.1.7.1 

• Ships >500GT shall be fitted with International Shore Connection ISC. 

Fire Hose

1) Reg 10, 2.3

•  Not less then 10m but not more than:

1. 15m in machinery space 
2. 20m in other space & open deck
3. 25m in other space & open deck for ship with maximum breadth in excess of 30m

• in interior of passenger ship carrying more than 36 person, fire hose shall be connected at all time.

2) Standard size nozzle 12mm, 14mm & 16mm.

                                        

[Picture from marine insight website]

                  

Let's ponder a while

This is the calculation of Emergency Fire Pump that I took from MV Surf Perdana when I was on board, however, there are some part I can't understand like example how they come out with formula of Nozzle flow by Bernoulli principle that way. Hope that someone could explain to me cause it's looks like pop out from dynamic pressure equation but not really accurate as well as per my understanding. So I leave it hang over there. 😂😂😂

              

the end