Surefire Buran-100ST-ESG User manual

Powder installation
«Buran-100ST-ESG»
TECHNICAL PASPORT
AND OPERATION MANUAL

2
1. Designation
The powder fire extinguishing installation “Buran-100ST-ESG” (hereinafter
referred to as the installation) is a set of two powder fire extinguishing modules
“Buran-50ST” (U1) with ESG-0.5 electric igniters, placed on a special stand and
designed for localization and extinguishing fires of class A, B, C, as well as fires
occurring in electrical equipment under voltage up to 1000 V.
The installation is used as an execution unit in automatic fire extinguishing systems
and belongs to the class of stationary fire extinguishers, does not contain ozone-
depleting substances.
The unit is not designed to extinguish fires of alkali and alkaline earth metals, as
well as substances whose combustion can occur without air access.
Climatic modification - U1 according to GOST 15150-69 for ambient temperature
from minus 50ºC to plus 95ºC at a relative humidity of up to 98%.
The primary field of application is technical premises of large areas and volumes in
industrial and residential buildings, warehouses for various purposes, transformer
substations of closed and open types, open storage and production sites.
An example of the symbol of the installation when recording in the design,
technological documentation and ordering:
Installation of powder fire extinguishing "Buran-100ST-ESG", where 100 - with a
volume of 100 liters, ST - short-term action; ESG - is the type of an electric igniter
used.
2. Technical characteristics
2.1. General requirements.
Technical characteristics of the installation and their values are given in table 1.
Table 1
Denominations, measurement units Value
1. Mass of the installation, kg 180±10
2. Dimensions см.рис.1
3. The duration of the supply of fire extinguishing powder, sec not more than 20
4. Speed of activation, sec not more than 8
5. Mass of fire extinguishing powder, kg, 96,04,8
6. Capacity of the installation, l 100,02,0
7. The mass of the residue of fire extinguishing powder after
operation,%, not more 10
8. Fire extinguishing ability of the installation:
Protected area, m
2
 when extinguishing class A fire with a sprayer height of 3 ÷ 5 m
 when extinguishing class B fire with a sprayer height of 3 ÷ 5 m
150
120

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Maximum protected volume, m
3
 when extinguishing class A fire
 when extinguishing class B fire
 Maximum rank of class B fire
 Range of supply of fire extinguishing powder in a horizontal plane,
which ensures the extinguishing of fires 2B, m
420
360
34В
not more than 15
9. Installation start method electrical
10. Type of electric igniter ESG-0,5
11. Electrical parameters of the electric starting circuit:
 starting current, A, not less than
 maximum starting current, A
 electrical resistance, Ohm
 time of electric current, s
 safe circuit test current, A, not more
 the voltage at the output terminals of the starter should be, V,
not more than
0,5
8
from 3,2 to 5,0
not less than 0,1
not more than 0,1
30
11. Temperature conditions of operation, ºС from – 50 ºС to + 95 ºС
12. Service life, years 10
13. Probability of reliable operation not less than 0,95
14. Working pressure (membrane opening pressure), MPa 1,5±0,2
15. Degree of protection against external influences according to
GOST 14254-96 IР54
16. The coefficient of uneven spraying of the powder, K1 (SP
5.13130.2009) 1,0
REQUIREMENTS FOR PIPELINES
The diameter of the gas pipeline (dу), mm 25
The length of the pipeline in the horizontal direction (for one module
included in the installation), m (not more) 30
Lifting the pipeline from the base of the body in the vertical direction,
m, not more 6
3. Delivery set
The set for delivery includes:
• Installation of powder fire extinguishing “Buran-100ST-ESG”. ………………………… ..1 pc;
(Installation: powder-extinguishing modules Buran-50ST (U1) - 2 pc., Holder-stand for two
modules - 1 pc.)
• passport and operating manual for the installation……………………………………… .1 pc;
In accordance with the design solutions for the protection of objects and at the request of the
end user, pipelines with sprayers may be included in the delivery set:
• guide pipe B II with a set of sprayers…………………………… 1 pc;
• SV II guide pipe with a set of sprayers ………………………… ..1 pc.

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Note:
piping and sprayers are supplied separately (as per customer request). The type and number of
sprayers are determined on the basis of the scheme used, and is negotiated when ordering.
4. DEVICE AND ACTION PRINCIPLE
4.1. The powder fire extinguishing installation “Buran-100ST-ESG” (see Fig. 1) consists of
two powder fire extinguishing modules “Buran-50ST” (U1) - 1, a holder for modules 2, fixing
clamps for modules 3, fasteners -4. Installation and movement of the kit is carried out with the
help of a rack with an eye- 5.
The “Buran-50ST” module (U1) (see Figure 1) consists of a hermetic steel case filled with fire
extinguishing powder, a gas generator (located inside the steel case) - 6, an ESG-0.5 electric
igniter, 7, an extinguishing powder neck. 8, the guide neck - 9 with a membrane assembly - 10.
At the outlet of the membrane assembly there is a G 1 thread for connecting the guide pipe (in
the transport position, the membrane assembly is closed with a plastic plug).
Installation in the fire extinguishing system up to the moment of launch does not have excessive
pressure inside the case.
4.2. The operation of the installation is as follows.
When a current pulse is applied, the gas generators of the modules are started, an intensive
gassing occurs, which leads to an increase in pressure in the modules' case and aeration of the
extinguishing powder in them. When the working pressure in the module housings of the
membrane module is destroyed by notches (bent in the form of petals) and the fire extinguishing
powder through the guide pipes and sprayers is fed into the protected space.

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Figure 1 – Powder extinguishing installation «Buran-100ST-ESG».
*) coordinates and size of mounting holes of the installation for mounting on the
protected object.
4.3. The installation can work as part of automatic fire extinguishing systems and is
activated with the help of the corresponding signal-starting devices and (or) fire alarm
installations, and (or) with an external manual start button.
4.4.The normal mode of operation of the installation is the standby signal for extinguishing a
fire.