BCAB #1283 - Two Stage Fire Alarm System - Silencing Switch, Sentence 188.8.131.52.(2)
June 19, 1992
Re: Two Stage Fire Alarm System - Silencing Switch, Sentence 184.108.40.206.(2)
This appeal involves a new two stage fire alarm system recently installed in an existing hospital. The system incorporates switches at the main annunciator panel and at nurse station annunciator panels that permit the alert signal to be acknowledged and silenced.
Reason for Appeal
Sentence 220.127.116.11.(2) prohibits the incorporation of silencing switches in a fire alarm system except within the control unit and as permitted by Sentence 18.104.22.168.(2) for voice communication systems.
The appellant contends that acknowledgment switches accessible to designated staff using keys to acknowledge alert signals only meets the requirement of and does not contravene the Code. He feels that to consider otherwise negates the intent of two stage fire alarm systems.
Building Official's Position
The building official maintains that silencing switches are specifically prohibited except within the control unit and the acknowledge/silence switches at the nurse stations are, therefore, not permitted. His concern is that these switches at the nurse stations allow staff to quite easily disable the fire alarm system simply by turning off the alert signal with these readily accessible switches
Appeal Board Decision #1283
It is the determination of the Board that Sentence 22.214.171.124.(2) applies to all types of fire alarm systems. Based on the information submitted, the Board considers the nursing station switches to be "manual silencing switches" which are not permitted to be installed anywhere other than inside the fire alarm control unit.
George R. Humphrey, Chair