Appendix
WATER SUPPLY FOR PUBLIC FIRE PROTECTION - Building D
November 17, 2020Page 1131 section
Technical calculation sheet for fire flow requirements for Building D of the 9 Erskine Lane development.
9 Erskine LaneJob # 2253October 9, 2019Total fire flow requirement: 4500 L/min
WATER SUPPLY FOR PUBLIC FIRE PROTECTION
Job Name: 9 Erskine Lane
Job #: 2253
Date: 9-Oct-19
Name: K. Krajnc
Building D
A. TYPE OF CONSTRUCTION
| Type | Coefficient |
|---|---|
| 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
1414 m² (1st)
C. HEIGHT OF BUILDING IN STOREYS
- Height: 6 (Number of floors)
- Area Total: 8484 m²
D. FIRE FLOW FORMULA
F = 220 · C √A
- C: 1.5
- A: 8484 m²
- F: 30396 L/min
- F (Nearest 1000): 30000 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 = -7500 L/min
- Tt = 22500 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 = 11250 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 = 15%
- W = 0%
- Total charge: 20%
- T = 20%
- T = 4500 L/min
H. TOTAL FIRE FLOW REQUIREMENT
- E = 22500 L/min
- F = 11250 L/min
- G = 4500 L/min
| Total = | 15750 | L/min |
|---|---|---|
| Total = | 16000 | L/min |
| Total = | 266.7 | L/sec |
| Total = | 4226.8 | USGal/min |
| Total = | 3519.5 | IGal/min |
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Extracted from: 2020 11 17 Public Hearing - Agenda - Pdf