Appendix
WATER SUPPLY FOR PUBLIC FIRE PROTECTION - Building C
November 17, 2020Page 1121 section
Technical calculation sheet for fire flow requirements for Building C of the 9 Erskine Lane development.
9 Erskine LaneJob # 2253October 9, 2019Total fire flow requirement: 3375 L/min
WATER SUPPLY FOR PUBLIC FIRE PROTECTION
Job Name: 9 Erskine Lane Job #: 2253 Date: 9-Oct-19 Name: K. Krajnc
Building C
A. TYPE OF CONSTRUCTION
| 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 floor)
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 Change |
|---|---|
| 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
| Seperation | Charge | Seperation | 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 = 0%
- W = 10%
Total charge: 15% T = 15% T = 3375 L/min
H. TOTAL FIRE FLOW REQUIREMENT
- E = 22500 L/min
- F = 11250 L/min
- G = 3375 L/min
| Total | Value | Units |
|---|---|---|
| Total = | 14625 | L/min |
| Total = | 15000 | L/min |
| Total = | 250.0 | L/sec |
| Total = | 3962.6 | USgal/min |
| Total = | 3299.5 | IGal/min |
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Extracted from: 2020 11 17 Public Hearing - Agenda - Pdf