FIRE DETECTION ALARM TYPE 2b

The main difference between category B and C lies in evacuation management (see end of CAT B). With type 2b alarm equipment, a general alarm is generated and broadcast throughout the establishment by means of autonomous sound alarm blocks (BAAS and satellites), with information centralized on a PR (main) BAAS. It can also perform safety functions limited to controlling fire doors, which can be timed.

Fire safety systems ensure the safety of occupants in public buildings, high-rise buildings, industrial buildings and workplaces.

There are several I.S.S. categories, in decreasing order of risk severity: A, B, C, D and E (according to NF S61-931). Each category implies a different level of I.S.S. complexity, i.e. a specific fire detection and alarm system.

ERP are also classified into categories, ranging from 1 to 5, depending on the type of establishment and the number of people admitted.

According to the NF S61-936 standard, alarm equipment is divided into 5 types: type 1, 2a, 2b, 3 and type 4.

A building's fire safety is based on the match between these three factors: an ERP is categorized and assigned a risk level (and therefore an I.S.S. category), on the basis of which appropriate alarm equipment is installed.

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What is a type 2b alarm?

A type 2b alarm is a type of fire alarm equipment found mainly in category C S.S.I. systems. Type 2b alarms can only handle a single alarm zone, and include :

Manual triggers, which activate the system when manually activated.
A sound diffusion system: which broadcasts the fire alarm or a system of pre-recorded messages inviting occupants to head for the emergency exits.
Alarm centralization: can be connected to an alarm panel which receives and manages information from the various system components.

The type 2b alarm is designed to broadcast a general alarm throughout the building in the event of fire.

Our type 2b alarm equipment

The alarm equipment consists of a BAAS type Pr (Main) combined with a BAAS type Sa (Satellite). The BAAS Sa is used to broadcast the general alarm signal. Opening the control loop from the autonomous main alarm unit (BAAS Pr) triggers the 5-minute alarm process.

Baas main type (Baas Pr)

BAAS type Pr (2, 4 or 8 manual release zones)

Baas satellite (Baas Sa)

Baas type Sa sound

Baas luminous type Sa sonore

Baas type SaMe with recorded message

Associated peripherals

Summary tables

Manual triggers

Application locations

Type 2b alarm equipment is indispensable in certain establishments where it is deemed necessary to inform all occupants simultaneously, in order to initiate immediate evacuation.