fire extinguishers
DESCRIPTION
architectureTRANSCRIPT
7/21/2019 Fire Extinguishers
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B U I L D I N G
S E R V I C E
S
F I R
E E X T I N
G U I S
H E
R
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Class A: SOLIDS such as paper, wood, plas!c ec
Class B:FL"##"BLE LI$UIDS such as para%&,perol, o!l ec
Class C:FL"##"BLE G"SES such as propa&e,'ua&e, (eha&e ec
Class D:#ET"LS such as alu(!&!u(, (a)&es!u(,!a&!u( ec
Class E: F!res !&*ol*!&) ELECTRIC"L "++"R"TUS
Class F: Coo!&) OIL - F"T ec
Types of re
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• A fre extinguisher is to extinguish a starting fre, i.e. or initialfrefghting.
• It contains a certain kind o extinguishing agent and includes amechanism which puts the extinguisher into operation.
• We distinguish these kinds o fre extinguishers:
1. handheld (portable),2. cart-mounted (also called wheeled), and3. trailers.
WHAT is Fire Extinguishers
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ypes of re extinguisher
ater Fire Extinguishers/
• The cheapes a&d (os w!del0 used re extinguishers1• Used 2or Class " 3res1• No su!a'le 2or Class B 4L!5u!d6 3res, or where elecr!c!0 !s !&*ol*ed1
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Foam Fire Extinguishers/
•
#ore e7pe&s!*e ha& waer, 'u (ore *ersa!le1• Used 2or Classes " - B 3res1• Foa( spra0 e7!&)u!shers are &o reco((e&ded 2or 3res !&*ol*!&)
elecr!c!0, 'u are sa2er ha& waer !2 !&ad*ere&l0 spra0ed o&ol!*e elecr!cal apparaus1
Dry Po!er Fire Extinguishers/
• O2e& er(ed he 8(ul!9purpose: e7!&)u!sher, as ! ca& 'e usedo& classes ", B - C 3res1
•
Bes 2or ru&&!&) l!5u!d 3res 4Class B61• ;!ll e%c!e&l0 e7!&)u!sh Class C )as 3res, 'u 'eware, ! ca& 'eda&)erous o e7!&)u!sh a )as 3re w!hou 3rs !sola!&) he )assuppl01
• Spec!al powders are a*a!la'le 2or class D (eal 3res1
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whe& used !&doors, powder ca& o'scure *!s!o& or da(a)e )oods a&d(ach!&er01 I !s also *er0 (ess01
C"# Fire Extinguishers/
Car'o& D!o7!de !s !deal 2or 3res !&*ol*!&) elecr!cal apparaus, a&dw!ll also e7!&)u!sh class B l!5u!d 3res, 'u has &o pos 3re secur!0a&d he 3re could re9!)&!e1
Wet $hemi$al
Spec!al!s e7!&)u!sher 2or class F 3res1
For %etal Fires/" spec!al!s 3re e7!&)u!sher 2or use o& Class D 3res 9 (eal 3ressuch as sod!u(, l!h!u(, (a&)a&ese a&d alu(!&!u( whe& !& he2or( o2 swar2 or ur&!&)s1
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Colour Co!ing+r!or o <s =a& <>>?, he code o2 prac!ce 2or 3re e7!&)u!shers !& heU@ was BS A, wh!ch ad*!sed he colour cod!&) o2 3ree7!&)u!shers as 2ollows/Water 9 &e!Foam 9 CreamDry Po!er 9 BlueCar'on Dioxi!e 4CO6 ( Bla$) Halon 9 *reen 4&ow !lle)al e7cep 2or a 2ew e7cep!o&s such as he
+ol!ce, "r(ed Ser*!ces a&d "!rcra261
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L ;aer spra0 AV d!alecr!c es appro*ed
Co(plee w!h 'race1
@!e(ared o BS EN
+roec!*e plas!c 'ase1
I&er&al pol0eh0le&e l!&!&)1
Corros!o& res!sa& 3&!sh1
S5ueee )r!p opera!o&1
tore! Pressure Water Extinguishers
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AFFF Foam Fire Extinguishers
Spra0 &ole1
S5ueee )r!p opera!o&1
Corros!o& res!sa& 3&!sh1
I&er&al pol0eh0le&e l!&!&)1
+roec!*e plas!c 'ase1
Co(plee w!h 'race1
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Our ra&)e o2 Dr0 +owder F!re E7!&)u!shers ha*e /9
#ul!9purpose appl!ca!o&1
S5ueee )r!p opera!o&1
Corros!o& res!sa& 3&!sh1
BS EN "ppro*ed
CE "ppro*ed1
Co(plee w!h 'race1
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S5ueee )r!p opera!o&1
Corros!o& res!sa& 3&!sh1
Har(less o (ach!&er01
@!e (ared o BS EN1
Co(plee w!h 'race1