Xtralis VESDA VLC-505, Руководство пользователя

Страница: 279 / 367

VESDA by Xtralis VESDA Pipe Network Design Guide
www.xtralis.com 35
7 Choice of Detector
The appropriate VESDA detector must be identified once site conditions are known and the sampling method
has been selected. The detector should be selected based upon area coverage and the type of sampling
method selected. The table below identifies the suggested VESDA detector for different environments. Actual
site conditions and pipe network design will determine the final choice of the detector.
Notes:
l
Some applications, whilst noted as clean in Table 7-1, may have areas that are contaminated or
considered dirty. Whilst this ‘Detector’ selection table provides a guide as to the most appropriate
detector selection for the application or environment, it is simply that, a guide.
l
Areas including roof spaces and electrical switches or substations in any application within the above list
can often have high levels of contamination that will impact on standard detector performance. In such
cases, the VESDA VLI may be best suited. Some applications have been indicated by the symbol “O“.
l
Not all applications where VESDA is suitable or can be applied have been listed in Table 7-1.