Hanoi-Vietnam: Regulations on inspection and maintenance of gas-based fire extinguishing systems

11:32, 10/07/2024

This content is detailed in Circular 52/2019/TT-BCA promulgating the National Technical Regulation on Fire fighting and prevention apparatus and equipment for storage, delivery port and distribution stations of gas in Vietnam

Inspection and maintenance for gas fire suppression systems, Circular 52/2019/TT-BCA

Illustrative image (source: internet)

The contents of inspection and the maintenance cycle for gas-based fire extinguishing systems in Vietnam shall follow the regulations in Table 11 of the National Technical Regulation on "Fire fighting and prevention apparatus and equipment for storage, delivery port and distribution stations of gas - QCVN 01:2019/BCA" issued together with Circular 52/2019/TT-BCA as follows:

Table 11 - Regulations on technical inspection and maintenance for gas-based fire extinguishing systems

No.	Content	Inspection and Maintenance Cycle
1	External inspection for mechanical damages, rust, durability of clamps, brackets, and integrity of seal indicators for system equipment: a) Technical components: pipelines, nozzles, shut-off and control valves, fire extinguishing gas and activation gas cylinders, pressure gauges, and distribution devices for protected objects and areas. b) Fire alarm signal components: central fire alarm panel, fire alarm detectors, fire alarm and fire extinguishing signal channels, etc.	Weekly	Monthly	Quarterly
2	Inspection of working condition of valves; pressure of pipelines and activation valves of gas cylinders.	Weekly	Monthly	Quarterly
3	Inspection of main power supply and backup power supply, and automatic switch-over from main power to backup power.	Row week	Row month	Row precious
4	Inspection of fire extinguishing gas quantity.	-	Monthly	Quarterly
5	Inspection of the working condition of system components: technological, electrical, and signal parts.	-	Monthly	Quarterly
6	Inspection of system working capability in automatic mode (for automatic systems), remote control, and manual control modes.	-	Monthly	Quarterly
7	Inspection of protective ground resistance.	Weekly	-	-
8	Inspection of insulation resistance of electrical circuits.	Every 3 years
9	Inspection of pipeline strength and tightness.	Every 3.5 years
10	Inspection of safety certificates for pressure equipment as per state regulations.	According to the pressure equipment regulations

The inspection and evaluation of the technical condition of automatic water and foam fire extinguishing systems include checking:

- The condition of fire extinguishing nozzles (in locations with mechanical damage risks, nozzles must be properly protected without affecting the coverage area and fire-induced heat flow).

- The types and sizes of nozzles within each branch pipeline (for each area) must be consistent in type and size.

The technical status evaluation and operational capability of water and foam-based fire extinguishing systems must comply with the standards on "Automatic water-based fire extinguishing systems - General technical requirements and test methods" and "Automatic foam-based fire extinguishing systems - General technical requirements and test methods" and other relevant existing regulations.

Further details may be found in Circular 52/2019/TT-BCA effective from December 18, 2019.

Thu Ba

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