name of the building     identification of the compartment       reference status
Calculation of the Protection Level D The reference situation is usually the actual status.
DATA Symbol Unit Results
Comments[1]
Water supply factor[2]            
Water storage type w1   1. Water storage for general use, automatically filled 0   0
Water storage capacity   m Estimated capacity of water storage available for fire fighting 150 m    
    m Required Capacity for fire extinguishment[3] 150 m  
  w2   Available capacity as % of required 100% 0 0[4]
Distribution network          
Nominal diameter of main water piping   mm DIA100 (4") flow capacity 676,9    
Looped network ?     OK total m/h 1353,8    
  w3   Distribution network supply capacity ADEQUATE   0
Hydrant hose connections[5]   m Building perimeter ( = 2 * (b+ l)) 700,00 m  
    # Number of available 2.5" (70) connections[6] 0      
    # Number of available 3" (80) connections[7] 0      
    # Number of available 4" (110) connections[8] 6      
      Equivalent number of 2.5" (70) connections[9] 18    
  w4   Average distance between connection on the building perimeter 38,89   0
Static pressure[10]   m Floor level height H+ or H- + ceiling height 12,0    
    bar Required network static pressure 4,7 bar  
  w5 bar Available static pressure in the distribution network 3,0 bar 3  
  w = 3
      Water supply factor W = 0,86
Normal protection Factor[11]            
Discovery n1   Continuous human presence , watchman service OK   0  
warning     There is also a (manually operated) warning system OK   0  
Call to fire brigade     Guaranteed transmission to the fire service OK   0  
Occupants alarm     There is also an alarm to the occupants OK   0  
Extinguishers n2   1. Extinguishers adequate (type and quantity) 0   0  
Fire hose stations[12] n3   1. Adequate number and location 0   0  
Fire brigade arrival n4   2. Arrival after 10 to 15 min 2   2  
Occupants' training n5   2. Only a limited number of persons trained 2   2  
  n = 4
      Normal protection Factor N = 0,81
Special protection factor            
Automatic fire detection s1   Guaranteed transmission of the detection signal to the fire brigade directly / through control room[13] OK      
      None 0   0  
      Electronic supervised system - fault monitoring OK   0  
      Individual identification of small fire zones (detector, room) NOK   0  
Improved water supply s2   Inexhaustible water supplies (4 times adequate)[14] NOK   0  
  s3   Reserved for fire fighting only NOK   0  
Control of water supply s4   Under control of building user (independent) NOK   0  
Pressure / Flow energy source s5   Single flow/pressure source[15] 0   0  
Sprinkler protection s6   None 0   0  
Other automatic s7   No other automatic extinguishing system 0   0  
Responding fire station s8   3. Retained station (part time professionals) 4   4  
Industrial fire brigade s9   None 0   0  
  s = 4
      Special protection factor S = 1,22
Fire resistance factor            
Structural /compartments fs min. Average fire resistance (REI) of the structural and separating elements: 15 min. 15  
Outside walls ff min. Average fire resistance of the outside walls ( E = flame tightness) 15 min. 15  
Ceiling or roof fd min. Average fire resistance of the ceiling or the roof (RE) 15 min. 15  
Interior walls[16] fw min. Average fire resistance of interior walls (EI) 0 min. 0  
      Calculated weighed average for fire resistance f = 13,125
      Initial structural fire resistance (stability) Fo = 1,15
      Fire resistance factor[17] F = 1,12
Escape protection factor            
Automatic fire detection u1   Some data are already entered at factor S      
      None 0 see at S 0
      Electronic supervised system - fault monitoring OK see at S 0
      Individual identification of small fire zones (detector, room) NOK see at S 0
      Partial detection system, only in areas critical for people safety[18] NOK   0  
      No more than 300 persons to be warned simultaneously OK   2  
      Evacuation alarm with spoken messages by voice communication system NOK   0  
Sub compartments u2   None 0   0  
Exit path protection u3   No stairs used for exit 0   0  
Horizontal exits     No horizontal exits 0   0  
Signage and illumination     Exit paths completely marked and illuminated OK   4  
Sprinklers? u4   None 0   0  
Other automatic system u5   No other automatic extinguishing system 0 see at S 0
Smoke vents actuation u6   Smoke venting actuated by automatic detection OK   0  
Responding fire station u7   3. Retained station (part time professionals) 4 see at S 4
Industrial fire brigade u8   None 0 see at S 0
  u = 10
      Escape protection factor U = 1,63
Salvage factor            
Compartmentation yi   None 0   0
PHYSICAL PROTECTION            
Detection yi   Partial detection system, only in areas critical for business continuity[19] NOK   0  
Sprinkler     Local sprinkler protection for critical equipment[20] NOK   0  
Other systems yi   Other LOCAL automatic extinguishing systems (CO2, foam, inert gas) NOK   0  
ORGANISATION          
FINANCIAL yi   Safeguarded financial and economical data[21] OK   2  
EQUIPMENT yi   Easy access to spare parts and replacements OK   4  
REPAIRS yi   Repairs possible with minimal help OK   2  
RELOCATION     Immediate transfer of activities possible NOK   0  
COOPERATION yi   Written agreements for relocation exist NOK   0  
PRODUCTION CENTRES yi   Production capacity available at more than one location NOK   0  
  y = 8
      Salvage factor Y = 1,48
Protection Levels D            
      Protection levels for:        
Water supply factor W 0,86 Property D 0,95    
Normal protection Factor N 0,81 Occupants D1 1,33   Date of this analysis
Special protection factor S 1,22 Activities D2 1,25    
Fire resistance factor F 1,12     date(s) of the analysis
Escape protection factor U 1,63      
Salvage factor Y 1,48          

[1]
Motivate your input here.
[2]
Factor w is defined as the sum of (unfavourable) factors wi for which the values can be found in the next table.
[3]
The required quantity in m is equal to the total fire load density in MJ/m divided by 4. A smaller quantity will can reduce the efficiency of fire fighting operations.
[4]
Does not apply when there is no storage available
[5]
An adequate number of fire hydrants is required. One 2.5" (70) hose connection is necessary per 50 m of building perimeter of the building. One 3" connection equals two 2.5"(70); one 4"(100) connection equals three 2.5" (70).
[6]
standard DIA 100 pillar hydrants have usually 2 x 2.5" hose connections. Wet and dry riser outlets are also to be included.
[7]
can be found on DN80 underground hydrants
[8]
can be found on DIA 100 underground hydrants.
[9]
enter at least 1 connection !
[10]
The static pressure of the water distribution system, expressed in meter water column should be greater than the height of the building + 35 m
[11]
Normal protection means the chain: discovery - alarm - manual intervention
[12]
Adequate: means that each point of the compartment can be reached with at least on water jet from a hose reel with sufficient water flow to fight a beginning fire.
[13]
Automatic detection systems accelerate the discovery of a fire and the fire brigade intervention. They can only be considered if there is a guaranteed connection to the fire brigade, which will immediately react to the signal.
[14]
Rivers, lakes and any other water storage that can guarantee 4 or more times the quantity of water needed are considered as inexhaustible.
[15]
Water supplies, which have double energy supplies for maintaining the water pressure, are highly reliable.
[16]
Interior walls which subdivide the compartment in fire areas, none of them should be more than 25 % of the compartment, and no area should be larger than 1000 m
[17]
Considering the value of S
[18]
Only applicable when there is no compartment wide detection
[19]
only applicable if there is no compartment wide detection. Can be other areas than for peoples' safety
[20]
Only applicable if there is no compartment wide sprinkler protection
[21]
E.g. by back-ups, physical separation, doubles at other places