I am resurrecting this thread to ask if anyone else has had any difficulties with Video Smoke Detection -VSD.
I cant say too much about a project I have been working on (customer confidentiality and all that), however, the system is installed in a large building which has vehicles moving in it regularly. There are a large number of inner rooms that are located off the main space where the vehicles are moving and the VSD was partly designed to protect the MOE from these inner rooms.
After more than a year, the VSD is still not connected to the main fire alarm system as it has been generating multiple UwFS. Instead, the VSD sounds a local alarm during the day which can be investigated by staff, but is effectively unmonitored at night (which is exactly the opposite of what was required in the design brief)
It simply cannot handle sunshine through windows, and that point at the end of the day when the sun suddenly goes down reducing the light levels within a short space of time. Its has gone off when doors or blinds are opened or closed creating a burst of sunshine, and another origin of problems are vehicle headlights, brake lights and reversing lights. The installers have iron out 75% of the problems, but its still not reliable enough in a premises where business continuity is important and regular interruptions (evacuations) cannot be accepted
I know I shouldn't feel this way after just one experience, but I have no confidence in this technology at present and would like to hear some good news stories if you have any?
