Appendix
Water Supply for Public Fire Protection - Building A
November 17, 2020Page 1101 section
Detailed fire flow requirement calculations for Building A based on Fire Underwriters Survey (FUS) standards.
Building ATotal Fire Flow Requirement: 13000 L/minDate: 9-Oct-19
WATER SUPPLY FOR PUBLIC FIRE PROTECTION
Job Name: 9 Erskine Lane Job #: 2253 Date: 9-Oct-19 Name: K. Krajnc
Building A
A. TYPE OF CONSTRUCTION
| Type of Construction | Value |
|---|---|
| Fire-Resistive Construction | 0.6 |
| Non-combustible Construction | 0.8 |
| Ordinary Construction | 1.0 |
| Wood Frame Construction | 1.5 |
C = 1.5
B. GROUND FLOOR AREA
1282 m² (1st)
C. HEIGHT OF BUILDING IN STOREYS
| Height | (Number of floors) | *Average | Area Total |
|---|---|---|---|
| 5 | 5 | 6410 m² |
D. FIRE FLOW FORMULA
F = 220 · C √A
- C: 1.5
- A: 6410 m²
- F: 26421 L/min
F (Nearest 1000): 26000 L/min
E. TOTAL DECREASE FOR OCCUPANCY
| Occupancy Type | Percentage |
|---|---|
| Non-Combustible | -25% |
| Limited Combustible | -15% |
| Combustible | No Change |
| Free Burning | 15% |
| Rapid Burning | 25% |
O = -25 % T = -6500 L/min Tt = 19500 L/min
F. DECREASE FOR SPRINKLER PROTECTION
- 50% for complete automatic protection
- 30% for adequately designed systems
- 10% for water supply standard to both domestic and fire department hose lines required
- 10% for fully supervised system
T = 50 % T = 9750 L/min
G. TOTAL INCREASE OF EXPOSURES
| Separation | Charge | Separation | Charge |
|---|---|---|---|
| 0 to 3m | 25% | 20.1 to 30m | 10% |
| 3.1 to 10m | 20% | 30.1 to 40m | 5% |
| 10.1 to 20m | 15% | >45m | 0% |
- N = 0%
- S = 5%
- E = 10%
- W = 0%
Total charge: 15% T = 15% T = 2925 L/min
H. TOTAL FIRE FLOW REQUIREMENT
- E = 19500 L/min
- F = 9750 L/min
- G = 2925 L/min
| Total Calculation | Result | Unit |
|---|---|---|
| Total = | 12675 | L/min |
| Total = | 13000 | L/min |
| Total = | 216.7 | L/sec |
| Total = | 3434.2 | USGal/min |
| Total = | 2859.6 | IGal/min |
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Extracted from: 2020 11 17 Public Hearing - Agenda - Pdf