General requirements for automatic fire alarm systems

Code for installation and acceptance of fire alarm systems. Welcome to post your country's code of it here.
vedard
Posts: 617
Joined: Wed Dec 05, 2018 12:27 am

General requirements for automatic fire alarm systems

Unread post by vedard »

The overall automatic fire alarm system provisions include the following rules.
1. General regulation
2. System form selection and design requirements
3. The division of alarm area and detection area
4. fire control room
5. Design of fire linkage control
6. Fire detector selection
7. Fire detector setup
8. Automatic fire alarm systems in typical locations

1. General regulation:
1) The automatic fire alarm system can be used in the places where people live and people often stay or where important materials are stored or where serious pollution occurs after burning and needs timely alarm.
2) Automatic fire alarm system should be equipped with automatic and manual triggering devices.
3) Automatic fire alarm system equipment should be selected in line with the relevant national standards and market standards.
4) The compatibility of interfaces and communication protocols between various types of equipment in the system should comply with the relevant provisions of the existing national standard for the compatibility requirements of automatic fire alarm system components.
5) The total number of fire detectors, manual fire alarm buttons and modules connected by any fire alarm controller and the total number of addresses should not exceed 3200 points, in which the total number of each bus loop connected devices should not exceed 200 points, and should leave a margin of not less than 10% of the rated capacity;The total number of addresses of any fire linkage controller or the total number of modules controlled by the fire alarm controller (linkage type) should not exceed 1600 points, and the total number of devices connected by each linkage bus loop should not exceed 100 points, and there should be no less than 10% of the rated capacity.
6) The bus short circuit isolator shall be set, and the total number of fire detectors, manual fire alarm buttons and modules protected by each bus short circuit isolator shall not exceed 32 points;When the bus passes through the fire partition, the bus short circuit isolator should be set at the crossing point.
This article is the basic technical requirements to ensure the overall operation stability of the automatic fire alarm system, and the short circuit isolator is the key to ensure that the overall function of the system is not affected by the faulty parts to the greatest extent, so this article is determined as a mandatory provision.
7) Equipment such as fire detectors, manual alarm buttons and modules directly controlled by each controller should not cross the refuge floor in buildings taller than 100m, except those in the fire control room.
8) For buildings with a height of more than 100m, in order to facilitate the operation of fire linkage control under fire conditions and prevent the misoperation of controlled equipment, the fire alarm controller set on the site should be controlled by partitions, and the connected fire detectors, manual alarm buttons, modules and other equipment should not cross the refuge floor of the fire controller area.
According to the practical situation of fire fighting and evacuation of buildings with a height of more than 100m, higher requirements are put forward for the reliability of fire fighting facilities. Because the alarm and linkage bus line does not require the use of fire-resistant cables, if the controller directly controlled fire detector, manual alarm buttons and modules and other equipment across the refuge floor, if there is a fire, the line will be burned and can not alarm and linkage, so this is mandatory provisions.
9) The water pump control cabinet, fan control cabinet and other fire control electrical devices should not be started by frequency conversion.
10) The automatic fire alarm system installed on the subway train should be able to transmit the information of the fire location on the train to the fire control room through wireless network.
Shop Focus brand wireless alarm, HB solar power alarm, HST fire alarm at https://www.vedardalarm.com
Post Reply