Seismic Detectors Application Guide
Any manual adjustment or calculations should be verified against the results of the Seismic Calcu-
lation Tool (see Figure 6-5: Seismic Calculation Tool results).
Figure 6-5: Seismic Calculation Tool results
Figure 6-5 The Seismic Calculation Tool automatically provides a balanced calculation in the Tabu-
lated Overview section using the same dimensions and radius as per previous example (l= 25m;
h= 3m; r= 4m).
In summary:
The number of detectors in Table 6.2 and Table 6.3 should be identical.
The calculated and balanced distances d1 in Table 6.2 should be less than or equal to the
value in Figure 6-5.
The calculated and balanced distances sd in Table 6.2 should be greater than or equal to
the values in Figure 6-5.
6.4 Wall height and operating radius
Table 6-3: Maximum wall height for each detector radius indicates the maximum wall height that
can be covered by a single row of detectors for each operating radius setting.
Table 6-3: Maximum wall height for each detector radius
Table 6-3: Maximum wall height for each detector radius details the maximum wall height for the
different operating radius of the detectors. If the wall height/radius is exceeded, another row of de-
tectors is required to ensure the correct coverage, as detailed in figure 6-2.
6.5 Modular vaults
There are two main methods of constructing a concrete modular vault.
Interlocking panels
Panels with steel surrounds
As construction methods of vaults may vary, the transfer of operating radius from one
surface to an adjacent surface should not form part of any calculation.
For all types of modular vaults, it is strongly recommended that a survey is conducted to determine
the exact number of detectors required to fully protect the vault. To perform such a survey, the fol-
lowing equipment would be required;
To Next Page
Loading...
Need help?
General
