A middle school is being expanded by two classrooms and about six small offices and supports spaces. The addition is separated by a fire barrier from the main school, and the existing school has a temporal-3 horn/strobe fire alarm system throughout (and is fully-sprinklered).
Current code requires an emergency voice/alarm communication system for the expansion, which the design team intends to provide. The question is how to address the interaction between the new voice system and the existing? Is this purely and AHJ call? Ideally, the school should consider upgrading their entire fire alarm system to voice for a cohesive message and best benefit. However, funding is very tight and we're not confident they'll have the support they need to do a full upgrade at this time. Posted anonymously by a member for discussion. Discuss this | Submit a Question | Subscribe
2 Comments
PETE
3/25/2019 10:22:32 am
How old is the existing? If it is old enough, you may be able to make the point that you cannot accomplish strobe synchronization using new and old devices. This is mandated in 72, and it's an ADA requirement.
Reply
Raul Vasquez
3/25/2019 10:54:17 am
Unless you see two or more in line of sight, sync would not be the greatest issue nor integration. the issue is conflicting evacuation tones and or vocal messages. the old horns may be mechanical steady, march time, California, there could be electro mech, temporal 3 and the voice system could be programmed to play the same through the speakers utilizing a digital sound clip to match, but you cant offer voice evac to one side and not the other
Reply
Leave a Reply. |
Free SignupSubscribe and learn something new each day:
CommunityThank You to Our Top November Contributors!
Your PostThe ToolkitSprinkler Designer or Engineer?
Get all of our tools, including the Sprinkler Database, Friction Loss Calculator, Fire Pump Analyzer and more: Filters
All
Archives
December 2019
Daily
Daily discussion questions are open-ended questions posed by members for the benefit of sharing expertise and learning from other perspectives. Join as a member here.
Exam Prep2019 PE Prep Guide
(Available Now!) PE Prep Series
(Available Now!) Current Leaderboard
(Click to enlarge) PE Problems
Visit July-October for daily Fire Protection PE Exam sample questions.
Solutions are posted the day after posting. Comment with your solutions, questions or clarifications. Please note that questions posted are unofficial and in accordance with NCEES rules are intended to be similar to actual exam questions, not actual exam questions themselves. |