National Building Regulations
Part T. Fire Protection
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TT2 Safety Distances
The following table is an extension of Table 2 - Safety Distance contained in
SANS 10400-T:2011 with safety distances calculated in terms of the formulae for the various fire loadings.
Table 2- Fire Safety Distances
| Area of Opening |
5.0 |
5.5 |
6.0 |
6.5 |
7.0 |
7.5 |
8.0 |
8.5 |
9.0 |
9.5 |
| Low Fire Load |
1.47 |
1.61 |
1.73 |
1.84 |
1.95 |
2.04 |
2.13 |
2.21 |
2.29 |
2.36 |
| Moderate Fire Load |
2.00 |
2.04 |
2.08 |
2.12 |
2.16 |
2.20 |
2.25 |
2.31 |
2.34 |
2.38 |
| High Fire Load |
2.70 |
2.86 |
3.02 |
3.18 |
3.34 |
3.50 |
3.55 |
3.61 |
3.64 |
3.69 |
| |
| Area of Opening |
10.0 |
10.5 |
11.0 |
11.5 |
12.0 |
12.5 |
13.0 |
13.5 |
14.0 |
14.5 |
| Low Fire Load |
2.43 |
2.50 |
2.56 |
2.62 |
2.68 |
2.73 |
2.79 |
2.84 |
2.88 |
2.93 |
| Moderate Fire Load |
2.46 |
2.54 |
2.63 |
2.73 |
2.81 |
2.89 |
2.97 |
3.05 |
3.12 |
3.18 |
| High Fire Load |
3.74 |
3.86 |
3.97 |
4.08 |
4.18 |
4.27 |
4.36 |
4.45 |
4.53 |
4.62 |
| |
| Area of Opening |
15.0 |
15.5 |
16.0 |
16.5 |
17.0 |
17.5 |
18.0 |
18.5 |
19.0 |
19.5 |
| Low Fire Load |
2.98 |
3.02 |
3.06 |
3.10 |
3.14 |
3.18 |
3.22 |
3.25 |
3.29 |
3.32 |
| Moderate Fire Load |
3.25 |
3.31 |
3.37 |
3.43 |
3.48 |
3.54 |
3.59 |
3.64 |
3.68 |
3.73 |
| High Fire Load |
4.69 |
4.77 |
4.84 |
4.91 |
4.98 |
5.04 |
5.11 |
5.17 |
5.23 |
5.29 |
| |
| Area of Opening |
20.0 |
21.0 |
22.0 |
23.0 |
24.0 |
25.0 |
|
|
|
|
| Low Fire Load |
3.35 |
3.42 |
3.48 |
3.54 |
3.59 |
3.64 |
|
|
|
|
| Moderate Fire Load |
3.78 |
3.86 |
3.94 |
4.02 |
4.09 |
4.16 |
|
|
|
|
| High Fire Load |
5.34 |
5.45 |
5.55 |
5.65 |
5.75 |
5.84 |
|
|
|
|
Read with SABS 0400:1990