2.fire fighters

Upload: shuvrodey

Post on 02-Jun-2018

227 views

Category:

Documents


0 download

TRANSCRIPT

  • 8/10/2019 2.Fire Fighters

    1/17

    Fire Fighters Suit

    A fire fighters suitis a suit designed to protect afire fighter from high temperatures, especially nearfires of extreme temperature such as aircraft fires.

    Fire fighters suits first appeared during the 1930s,and were originally made of asbestos fabric (hencealso known as the asbestos suit). Today they aremanufactured from aluminized materials thatreflect the high radiant loads produced by the fire.

  • 8/10/2019 2.Fire Fighters

    2/17

    Fire fighters suitThere are three basic types of these aluminized suits:

    Approach suitused for work in the general area

    of high temperatures such as steel mills andmelting facilities. (Ambient heat protection up to~200 F (93 C).)

    Proximity suitused for aircraft rescue and fire

    fighting. ambient protection~ 500 F (260 C))

  • 8/10/2019 2.Fire Fighters

    3/17

    Fire fighters suit Entry suitused for entry into extreme heat andsituations requiring protection from total flameengulfment. Most commonly made of Fyrepel. (Entry

    suit ambient protection ~1,500 F (816 C) for shortduration and prolonged radiant heat up to 2,000 F(1,093 C))

    FYREPEL:ALUMINIZED NOMEX BY DUPONT PROXIMITY SUIT FIREFIGHTING COAT

  • 8/10/2019 2.Fire Fighters

    4/17

    Fire fighters suitComplete proximity protection requires:

    Aluminized hood or helmet cover with neck

    shroudAluminized jacket and pants complete with vapor

    barrier insulated liner

    Aluminized lined gloves

    Aluminized AR-FF boots

    SCBA

  • 8/10/2019 2.Fire Fighters

    5/17

    Fire Fighters suitFire fighters suit should be made from three ply of

    fabrics.

    outerply should be flame retardant.middleply should be vapor barrier.

    innerply should be thermal barrier.

  • 8/10/2019 2.Fire Fighters

    6/17

    Fire Fighters Suit Outer layer should be made from aramid fiber or

    blend of aramid and novoloid fiber or blend of FR

    cotton and novoloid fiber.(Novolac: high thermal and flame resistance fiber,85% cross linked novolac, phenol formaldehyde)

    Solid fabric of mentioned fibers are embrittled

    within 10 seconds, but blends are less brittle insuch condition.

  • 8/10/2019 2.Fire Fighters

    7/17

    Fire Fighters Suit Blends of these can protect body from flame for atleast 28 seconds. The middle layer protect from harmful chemicals

    and toxic fumes.

    Middle layer is a barrier for evaporating selfgenerated sweat and vapor which is harmful as

    well. For this reason, European fire fighters dress is

    made w/o middle layer. Inner layer should be made of soft, light weight

    cotton.

  • 8/10/2019 2.Fire Fighters

    8/17

    Fire Fighters SuitAnother Option of FF suits:

    Two ply woolenand one ply cottonfabric is suitablefor fire fighters,

    outer plymay be made of wool serge which is fineand densely woven.

    middle layeris coarse and brushed woolen,works as heat resistant.

    inner layermay be made of light weight cottonfabric, used as lining.

  • 8/10/2019 2.Fire Fighters

    9/17

    Fire Fighters Suit Effectiveness of clothing related to the thickness of

    clothing. Higherthe thickness of the clothing, betterthe

    effectiveness. Excessive thickness may be discomfortable for

    wearer. Component of FF suits is usually Cotton, mixture

    of different cellulosic fibers, aramid, wool, lather,asbestos, glass and ceramic.

    Thickness of fabric is more important than thetype of fibers.

  • 8/10/2019 2.Fire Fighters

    10/17

    Fire Fighters Suit Certain synthetic fabrics may melt in relatively low

    temperature, can cause severe burns.

    Clothing contains nylon or polyester, even if they are

    blended with natural fibers, MUST NOT be used in a firefighting suits.

    Clothing made of cotton or wool is generally safer to wear.

    Nylon or polyester may melt but wool or cotton may char oreven burn without melt.

    Fire fighters should be able to don within 60 seconds.

  • 8/10/2019 2.Fire Fighters

    11/17

    Drawback of Fire Fighters Suit Fire fighters suits retain body heat and perspiration, can

    rapidly develop elevated body temperature even whenambient temperature is cool.

    Another drawback is that it limits mobility, movementawkward and difficult, this increases energy expenditureand adds stress.

    It decreases normal sensory abilities, Sight is restricted when fire fighters wear SCBA.

    Ear Flaps and hoods limits hearing.

    SO, fire fighters suits should be made in such way that

    eliminate/reduces mentioned problems.

  • 8/10/2019 2.Fire Fighters

    12/17

    Fire fighters suit

  • 8/10/2019 2.Fire Fighters

    13/17

    Fire fighters suits

  • 8/10/2019 2.Fire Fighters

    14/17

    Fire fighters dress

  • 8/10/2019 2.Fire Fighters

    15/17

    Fire fighters dress

  • 8/10/2019 2.Fire Fighters

    16/17

    Fire fighters dress

  • 8/10/2019 2.Fire Fighters

    17/17

    Price: US $ 2955