VdS Guidelines for Fire Extinguishing Systems
Fire Extinguishing Systems using
non-liquefied Inert Gases
Amendment S1: Amendment to VdS 2380en : 2009-06 (03)
The Guidelines for Fire Extinguishing Systems using non-liquefied Inert Gases, Planning
and Installation, VdS 2380en : 2009-06 (3) apply subject to the following table modifications as of 18.07.2011.
Cl. 2.3, Tables 2.1 and 2.2:
Revised version
Material
Argon
IG541
Nitrogen
Acetone
60,5
49,5
46,6
Butane 2.5
55,2
Cooling liquid ECOCUT HFN 16LE
32,2
Cutting oil MSA-LPC 442
66,4
Diethyl ether
69,9
55,7
52,7
Ethyl alcohol
68,8
55,4
53,8
Formic acid (89-91%)
41,2
Heating fuel
53,2
Hydraulic oil MOBIL DTE 22
43,0
Hydraulic oil Shell Tellus 46
41,9
Isopropanol
Methane
48,1
1)
Methanol
46,3
86,7
68,3
n-butanol
57,3
n-Butyraldehyde
56,2
64,3
n-heptane
51,7
48,1
47,6
n-hexane
64,7
54,3
50,9
n-pentane
65,1
51,3
50,5
Propane
1)
44,6
PSX 700 Cure
49,8
Transformer oil
59,0
Toluene
White Spirit Cristal Oil 30
1)
IG55
55,4
43,8
43,7
51,0
Start temperature 26°C
Table 2.1: Design concentrations for flammable liquids in Vol% inert gas
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47,6
Fire Extinguishing Systems using non-liquefied Inert Gases
Special application
IT rooms (machinery rooms)
1) 2)
Electrical central control and distributor
1) 2)
rooms
Cable floors
1)
Document storage, painting storage and
3)
similar
1)
2)
VdS 2380-S1en : 2011-07 (01)
Argon
IG541
Nitrogen
IG55
49,1
45,7
45,2
45,2
49,1
45,7
45,2
45,2
49,1
45,7
45,2
45,2
61,0
61,0
61,0
61,0
Hold time between reaching the design concentration and falling below 85% of the design concentration in
the enclosure (i.e. at 10% and 90% of the room height) shall be at least 10 minutes.
Material storage and handling is not permitted.
Note: Annex A9 shows testing methods for extinguishing concentrations for plastics (e.g. IT). If results of tests
are available, the design concentrations in Table 2.2 will be changed. The extinguishing concentration shall be
based on the maximum of the four determined extinguishing concentrations for plastics and cables.
3)
Hold time at 10% and 90% of the room height until
- 85% of the design concentration is fallen below shall be at least 10 minutes; and
- 1.3 x extinguishing concentration for wood crib (see Annex B) shall be at least 20 minutes.
Table 2.2: Design concentrations for special applications in Vol% inert gas
Annex B1, Tables B1.1 and B1.2:
Annex B1 – Extinguishing and design concentrations for Argon
Fuel
CL Extinguishing
concentration
in Vol% Argon
Cup Burner
Enclosure
2)
Acetone
38,8
60,5
Cooling liquid
ECOCUT HFN
16LE
20,7
32,2
Cutting oil
MSA-LPC 442
42,6
66,4
Diethylether
44,8
69,9
Ethanol
44,1
68,8
Hydraulic oil
MOBIL DTE 22
27,6
43,0
Methanol
55,6
86,7
n-Heptane
39,1
n-Hexane
41,5
64,7
n-Pentane
41,7
65,1
Toluene
35,5
55,4
1)
acc. Annex A4
2)
acc. Annex A9
Table B1.1: Flammable liquids
2
1)
CA Design concentration
in Vol% Argon
39,8
51,7
VdS 2380-S1en : 2011-07 (01)
Special equipment
Fire Extinguishing Systems using non-liquefied Inert Gases
Extinguishing
concentration
in Vol% Argon
Design concentration
in Vol% Argon
IT rooms
1)
(machine rooms)
49,1
2)
Electrical switch and
1)
distribution rooms
49,1
2)
49,1
2)
Cable floors
1)
1)
Storage or processing of materials is not allowed.
2)
Note: Corresponding to 95% of design concentration of n-heptane. In Annex A9 testing methods for determining the extinguishing concentration for plastic objects (e.g. IT rooms) are explained. As soon as results of practical tests are available, the design concentrations in Table B1.2 will be changed: extinguishing concentration
shall be the maximum of four determined extinguishing concentrations for plastics and cables.
Table B1.2: Special equipment
Annex B2, Table B2.1:
Annex B2 – Extinguishing and design concentrations for IG 541
Fuel
Design concentration CA
Extinguishing
concentration CL
in Vol% IG541
“Cup Burner”
1)
Enclosure
in Vol% IG541
2)
Acetone
31,7
49,5
Butane 2.5
35,4
55,2
Diethylether
35,7
55,7
Ethanol
35,5
55,4
Formic acid (89-91%)
26,4
41,2
Heating oil
34,1
53,2
Isopropanol
30,8
48,1
29,7
46,3
Methanol
43,8
68,3
n-Butanol
36,7
57,3
n-Butyraldehyde
36,0
56,2
n-Heptane
33,8
n-Hexane
34,8
54,3
n-Pentane
32,9
51,3
3)
28,6
44,6
PSX 700 Cure
31,9
49,8
Shell Diala Oil D
37,8
59,0
Transformer oil
37,8
59,0
Toluene
28,1
43,8
White Spirit Cristal Oil 30
32,7
51,0
3)
Methane
Propane
1)
acc. Annex A4
2)
acc. Annex A9
3)
Start fuel temperature: 25°C
37,0
48,1
Table B2.1: Flammable liquids
3
Fire Extinguishing Systems using non-liquefied Inert Gases
VdS 2380-S1en : 2011-07 (01)
Annex B3, Table B3.2:
Annex B3 – Extinguishing and design concentrations for Nitrogen
Special equipment
Extinguishing
concentration CL
in Vol% Nitrogen
IT rooms
1)
(machine rooms)
Electrical switch and
1)
distribution rooms
Cable floors
1)
Design concentration CA
in Vol% Nitrogen
42,2
2)
42,2
2)
42,2
2)
1)
Storage or processing of materials is not allowed.
2)
Note: Corresponding to 95% of design concentration of n-heptane. In Annex A9 testing methods for determining the extinguishing concentration for plastic objects (e.g. IT rooms) are explained. As soon as results
of practical tests are available, the design concentrations in Table B3.2 will be changed: extinguishing concentration shall be the maximum of four determined extinguishing concentrations for plastics and cables.
Table B3.2: Special equipment
Annex B4, Tables B4.1 and B4.2:
Annex B4 – Extinguishing and design concentrations for IG 55
Fuel
Extinguishing concentration CL
Design concentration CA
in Vol% IG55
in Vol% IG55
“Cup Burner“
n-Heptane
1)
32,0
1)
acc. Annex A4
2)
acc. Annex A9
Enclosure
2)
36,6
47,6
Table B4.1: Flammable liquids
Special application
IT rooms (machinery rooms)
Extinguishing
concentration
in Vol% IG55
1)
Electrical central control and
1)
distributor rooms
Cable floors
1)
45,2
2)
45,2
2)
45,2
2)
1)
Material storage and handling is not permitted.
2)
Note: Value corresponds to 95% of the design concentration for n-Heptane. Annex A9 shows testing methods for extinguishing concentrations for plastics (e.g. IT). If results of tests are available, the design concentration in Table B.3.2 will be changed: the extinguishing concentration shall be based on the maximum of the four
determined extinguishing concentrations for plastics and cables.
Table B4.2: Special applications
4
Design concentration
in Vol % IG55