The installation of warning and evacuation control systems is carried out in accordance with the Law of 01.10.2029 N ZRU-226 “On Fire safety” and the rules of 20.10.2020 N 649 “Fire Safety Rules” dated 20.10.2020 N 649 and the manufacturer’s technical documentation. The purpose of these systems is to promptly and clearly inform people in the event of a fire in order to organize timely evacuation.

When designing and installing, the type of warning and evacuation control systems is taken into account, depending on the functionality and area of the facility. There are 5 types of systems: from simple sound systems (type 1-2) for small buildings to multifunctional complexes (type 3-5) that provide voice notification, direction indication, and division of an object into zones to create a staged evacuation.

The method of laying cable lines

Fire-resistant cable products (FRLS, FRHF) laid in metal pipes or ducts are used for warning and evacuation control systems. The routes are carried out along the load-bearing elements, in protected channels. Only cables that do not lose their functionality during a fire during a specified time are allowed.

Arrangement of system elements

The speakers and indicators are placed evenly so that there are no gaps in audibility in each zone. The sound level must exceed the background noise by at least 15 dB, and the speech clarity must be at least 75%. Additionally, light direction indicators are installed, visible from anywhere in the room.

Integration with other systems

Warning and evacuation management systems are integrated into the overall architecture of fire protection — in conjunction with APS, smoke extraction systems, elevator shafts and ACS. Upon receiving a signal from the fire sensors, the alarm and evacuation control systems are automatically activated in a preset logic for each zone of the facility.

Power supply and redundancy

Two-channel power supply and backup power sources are provided for alarm and evacuation control systems. The allowed battery life of the system is at least 24 hours in standby mode and at least 1 hour in emergency mode.

Acceptance and inspections

When the system is put into operation, checks are performed: measuring the sound level at control points, checking voice messages, evaluating the visibility of direction indicators, testing the logic of switching between different evacuation zones. The permissible sound level deviations are not more than 5%.

The installation of warning and evacuation management systems is carried out by organizations licensed by the Ministry of Emergency Situations of the Republic of Uzbekistan. Only certified equipment and fire-resistant cable products are allowed. The quality of the installation is checked as part of a commission check, the results are documented in certificates. Strict compliance with these requirements ensures stable and efficient operation of warning and evacuation management systems in fire conditions.

 

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Fire suppression systems (FSS) are critical for effectively preventing and extinguishing fires. However, to ensure these systems remain reliable and fully functional, regular maintenance and performance inspections are essential.

Why maintenance and inspection are necessary

All equipment degrades over time. Pipes, connectors, valves, and electronic components of fire suppression systems can lose their reliability due to wear, corrosion, pressure loss, or software failures. Without timely inspections and repairs, the system may fail to operate during a fire.

Moreover, operating without proper maintenance violates fire safety regulations and can result in fines or business suspension. Inspections confirm that the system is ready to perform key functions: deliver the extinguishing agent, activate actuators, and run the automated control and alert systems.

Regulatory framework

Maintenance and inspection are regulated:

• Technical regulations in the field of fire safety;
• UzTR. 536-039:2022 General Technical Regulations “On Fire Safety and requirements for fire extinguishing equipment”;
• The Law of the Republic of Uzbekistan, dated 30.09.2009, No. ZRU-226;
• No. 649 Resolution of the Cabinet of Ministers of the Republic of Uzbekistan “On approval of fire safety rules”;
• Passports and equipment instructions.

By law, maintenance can only be performed by an organization licensed by the Ministry of Emergency Situations. The personnel carrying out the work must have the appropriate qualifications and certificates.

Key maintenance procedures

A standard maintenance and inspection routine includes:

1. Visual inspection of all components — pipes, nozzles, pumps, gas modules.
2. Integrity checks — looking for corrosion, damage, or leaks.
3. Testing actuators — valves, dampers, pumps.
4. Monitoring pressure levels and extinguishing agent flow rates.
5. Verifying automatic components — sensors, control panels, alarm systems.
6. Preventive maintenance — flushing pipes, replacing worn or damaged parts.
7. Test activations — simulating actual fire response scenarios.
8. Documentation — preparing a service report with all findings and actions taken.

All tasks are performed in strict accordance with the design and technical documentation.

Inspection frequency

The frequency depends on the system type and is defined in the project documentation:

• Gas systems — every 6 months.
• Water- and foam-based systems — at least once a year.
• Unscheduled inspections — after malfunctions, repairs, or building modifications.

Regular servicing helps ensure reliability and regulatory compliance.

Who is responsible?

The owner of the facility is legally responsible for ensuring timely system maintenance. However, only certified contractors with EMERCOM licenses are allowed to carry out the work. Their technicians inspect, test, repair the systems, and provide the required documentation.

Conclusion

Maintaining and regularly inspecting fire suppression systems is a legal obligation and a critical safety measure. With proper oversight and timely maintenance, FSS can reliably protect people and property from fire-related hazards.

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