ICAM by Xtralis
ICAM ILS-2 Product Guide
www.xtralis.com
27
9
EN 54-20 Sensitivity Classes
The detectors used in the ILS-2 have been independently tested and certified for use in EN54-20 approved
Class A, B or C installations. The following information will show the requirements for compliance in each
category.
Detector Threshold
Maximum Number of Holes per Class, per Pipe
Class C
Class B
Class A
1
18
6
3
2
9
3
1
3
4
1
N/A
4
1
N/A
N/A
5 or above
N/A
N/A
N/A
Table 9-1: Sensitivity and Maximum Holes per Class
Notes:
l
Table 9-1 shows the limits that should not be exceeded for the three sensitivity classes. Figures are
based upon the configurations shown in Section 4.8.
l
All pipe network designs should be verified using the latest version of the ASPIRE design tool. This can
be downloaded from www.xtralis.com.
