name of the building     identification of the compartment       reference status
Calculation of the Protection Level D The reference situation is usually the actual status.
Schuine rand: Go to START
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   m³ Estimated capacity of water storage available for fire fighting 158 m³    
    m³ Required Capacity for fire extinguishment[3] 175 m³  
  w2   Available capacity as % of required 90% 1 1[4]
Distribution network             
Nominal diameter of main water piping   mm DIA 80 (3") flow capacity 34,3    
Looped network ?     yes total m³/h 68,6    
  w3   Distribution network supply capacity LIMITED   2
Hydrant hose connections[5]   m Building perimeter ( = 2 * (b+l))  180 m  
    # Number of available 2.5" (70) connections[6] 4      
    # Number of available 3" (80) connections[7] 0      
    # Number of available 4" (110) connections[8] 0      
      Equivalent number of 2.5" (70) connections[9] 4    
  w4   Average distance between connection on the building perimeter 45,00   0
Static pressure[10]   m Floor level height  H+ or H- + ceiling height 4    
      Required network static pressure 3,9 bar  
  w5 bar Available static pressure in the distribution network 5 bar 0  
  w = 3
      WATER SUPPLY Factor  W = 0,86
Normal protection Factor [11]    
Discovery n1   Continuous human presence , watchman service yes   0  
warning     There is also a (manually operated) warning system  yes   0  
Call to fire brigade     Guaranteed transmission to the fire service  yes   0  
Occupants alarm     There is also an alarm to the occupants  yes   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] yes      
        None 0   0  
      Electronic supervised system - fault monitoring no   0  
      Individual identification of small fire zones (detector, room)  no   0  
Improved water supply s2   Inexhaustible water supplies (4 times adequate)[14] no   0  
  s3   Reserved for fire fighting only no   0  
Control of water supply s4   Under control of building user (independent) no   0  
Pressure / Flow energy source s5     Single flow/pressure source[15] 0   0  
Sprinkler protection s6     None 0   0  
Other automatic s7   Other automatic extinguishing systems (CO2, foam, inert gas) no   0  
Responding fire station s8   1. Full time station 24h/24  7d/7 8   8  
Industrial fire brigade s9     None 0   0  
  s = 8
      Special protection factor  S = 1,48
Fire resistance factor   
Structural /compartments fs min. Average fire resistance (REI) of the structural and separating elements: 30 min. 30  
Outside walls ff min. Average fire resistance of the outside walls ( E = flame tightness) 30 min. 30  
Ceiling or roof fd min. Average fire resistance of the ceiling or the roof (RE) 30 min. 30  
Interior walls[16] fw min. Average fire resistance of interior walls (EI) 0 min. 0  
      Calculated weighed average for fire resistance f = 26,25
      Initial structural fire resistance (stability) Fo = 1,30
      Fire resistance factor [17] F = 1,24
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 no see at S 0
      Individual identification of small fire zones (detector, room)  no see at S 0
      Partial detection system, only in areas critical for people safety[18] no   0  
      No more than 300 persons to be warned simultaneously yes   2  
      Evacuation alarm with spoken messages by voice communication system no   0  
Subcompartments u2     None 0   0  
Exit path protection u3   1. Open inside stairs 0   0  
Horizontal exits       No horizontal exits 0   0  
Signage and illumination     Exit paths completely marked and illuminated yes   4  
Sprinklers? u4     None 0   0  
Other automatic system u5   Other automatic extinguishing systems (CO2, foam, inert gas) no see at S 0
Smoke vents actuation u6   Smoke venting actuated by automatic detection no   0  
Responding fire station u7   1. Full time station 24h/24  7d/7 8 see at S 8
Industrial fire brigade u8     None 0 see at S 0
  u = 14
      Escape protection factor  U = 1,98
Salvage factor           
Compartmentation yi     None 0   0
PHYSICAL PROTECTION            
Detection yi   Partial detection system, only in areas critical for business continuity[19] no   0  
Sprinkler     Local sprinkler protection for critical equipment[20] no   0  
Other systems yi   Other LOCAL automatic extinguishing systems (CO2, foam, inert gas) no   0  
ORGANISATION            
FINANCIAL yi   Safeguarded financial and economical data[21] yes   2  
EQUIPMENT yi   Easy access to spare parts and replacements yes   4  
REPAIRS yi   Repairs possible with minimal help yes   2  
RELOCATION     Immediate transfer of activities possible no   0  
COOPERATION yi   Written agreements for relocation exist no   0  
PRODUCTION CENTRES yi   Production capacity available at more than one location no   0  
  y = 8
      Salvage factor  Y = 1,48
Protection levels D  
      Protection levels for:        
WATER SUPPLY Factor  W 0,86  Property D 1,28    
Normal protection Factor  N 0,81  Occupants D1 1,61   Date of this analysis
Special protection factor  S 1,48  Activities  D2 1,52    
Fire resistance factor  F 1,24     date(s) of the analysis
Escape protection factor  U 1,98      
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 m³ is equal to the total fire load density in MJ/m² 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 m²
[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