Hello,

There is large building - sport arena,

where according standards it's required

to design voice evacuation system.

I've visited some similar premises and I

noticed that there are lot's of fire alarm

indoor sirens (with beacon) - in halls, corridors, etc.

1. So, if in large public building there is voice

evacuation system is it required install fire

alarm sounders too? (not only according

standards but due to your practice too)

2. What working algorithm (typically) used

for activation both sound and voice systems?

Thank you.

Edited December 3, 200817 yr by aleksandras1234

If you are using a Voice Alarm System correctly designed to appropriate standards eg. 5839 pt 8 then there is no need to have fire alarm sounders as well.

The beacons may be installed as a staff alarm in such a large building to activate prior to the evacuation message being put out.

Hello,

There is large building - sport arena,

where according standards it's required

to design voice evacuation system.

I've visited some similar premises and I

noticed that there are lot's of fire alarm

indoor sirens (with beacon) - in halls, corridors, etc.

1. So, if in large public building there is voice

evacuation system is it required install fire

alarm sounders too? (not only according

standards but due to your practice too)

Most PA fire systems I have worked on use the speakers as a fire alarm sounder between evacuation voice messages, to add extra sounders would be unnecessary.

2. What working algorithm (typically) used

for activation both sound and voice systems?

Thank you.

Umm, I think you mean the order of events? In a large manned building normally a warning sounder for staff to hear on a delay before the system goes to voice evac.

Most Casinos we have done , voice is in public areas and standard sounders for back of house .

Most Casinos we have done , voice is in public areas and standard sounders for back of house .

Two different fire signals in the same building? :'(