Xtralis VESDA E-Series, Руководство пользователя

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VESDA by Xtralis VESDA Commissioning Guide
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5.1.4 Polyurethane Mat Smoke Testing
This method is suitable for the testing of standard sensitivity fire detection systems. A controlled fire is
produced by lighting of flexible polyurethane foam mat. This test is suitable for testing smoke detection in
open areas such as warehouses and atriums.
Warning: The burning of polyurethane foam generates toxic gases. We recommend you use appropriate
protective equipment.
1. Ensure that the local fire panel is isolated from the external fire reporting equipment and that any
automatic extinguishing or suppressant systems are similarly isolated.
2. Cover a metal tray with kitchen foil.
3. Put the mat into the tray. Multiple mats may be stacked as required by the system designer.
4. Put something under the tray to protect the floor from damage.
5. Ignite a corner of the mat with a match, and start a stop watch.
6. Acceptable detector response time is specified in local codes and standards or as per the system design.
Legend
A 500mm (20 in)
B Kitchen foil in tray
C 20mm (0.874 in)
Figure 5-2: Polyurethane Mat Smoke Test
5.1.5 Wire Burn Smoke Testing
This test is performed by using a transformer to overload the power running through two meters of PVC-
coated wire. To simulate the early stages of a fire, a length of wire is electrically overloaded so that smoke or
vapors are driven off. This method is suitable for the testing of high sensitivity fire detection systems. This
test may also be undertaken in underfloor spaces or ceiling voids.
Note: The wire used in this testing must be 1 m in length, of 10/0.1 mm strands insulated with PVC to a radial
thickness of 0.3 mm, the cross sectional area of the conductor being 0.078 mm².
Xtralis has developed a test kit to assist field testing of wire burns. For more information please contact your
nearest Xtralis office and ask for information on VTT-10000.
These instructions are written assuming that you are using a VTT-10000 test kit.
Warning: This test will burn the PVC coating off the wire. Do not hold the wire during testing. Do not
breath in the smoke as it is harmful to your health. We recommend you remotely turn the
transformer on and use appropriate protective equipment.