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WATER SUPPLY FOR PUBLIC FIRE PROTECTION - Building A
September 15, 2020Page 3561 section
Fire flow requirement calculation sheet for Building A at 9 Erskine Lane.
Building ARequired fire flow: 13,000 L/minOctober 9, 2019
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
| Construction Type | Factor |
|---|---|
| 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
| Area | Floor |
|---|---|
| 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
| Variable | Value |
|---|---|
| C | 1.5 |
| A | 6410 m² |
| F | 26421 L/min |
| F (Nearest 1000): | 26000 L/min |
E. TOTAL DECREASE FOR OCCUPANCY
| Occupancy Class | Adjustment |
|---|---|
| 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
| 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 = 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
| Summary | Calculation | Unit |
|---|---|---|
| Total = | 12675 | L/min |
| Total = | 13000 | L/min |
| Total = | 216.7 | L/sec |
| Total = | 3434.2 | USGal/min |
| Total = | 2859.6 | IGal/min |
Page 356
Extracted from: 2020 09 15 Committee of the Whole Agenda - Agenda - Pdf