Fire proximity suit
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A fire proximity suit (also, silvers, silver bunker suit, or asbestos suit) is a suit designed to protect a firefighter from high temperatures, especially near fires of extreme temperature such as aircraft fires. They were first designed and used in the 1930s. Originally made of asbestos fabric, current models use vacuum-deposited aluminized materials.
Fire proximity suits first appeared during the 1930s, and were originally made of asbestos fabric. Today they are manufactured from vacuum-deposited aluminized materials that reflect the high radiant loads produced by the fire.
An early pioneer of the aluminised suits was the Bristol Uniforms company under the stewardship of Patrick Seager Hill. Proprietor from 1964 – 1999, who established, and developed the company to become a world leader & remains so to this day. The company was a sister of Wathen Gardiner & Co.
There are three basic types of these aluminized suits:
- Approach suit—used for work in the general area of high temperatures such as steel mills and smelting facilities.
- Ambient heat protection up to ≈200 °F (93 °C).
- Proximity suit—used for aircraft rescue and fire fighting (AR-FF) and, in more heavily insulated versions, for kiln work requiring entry into the heated kiln.
- Kiln suit ambient protection ≈2,000 °F (1,093 °C)
- Proximity ambient protection ≈500 °F (260 °C)
- Entry suit—used for entry into extreme heat and situations requiring protection from total flame engulfment. Most commonly made of Zetex or Vermiculite and not aluminized.
Complete proximity protection for AR-FF requires:
- Aluminized hood or helmet cover with neck shroud
- Aluminized jacket and pants complete with vapor barrier insulated liner
- Aluminized lined gloves
- Aluminized AR-FF boots
- Self-contained breathing apparatus (SCBA) (aluminized covers for air bottles, or suits that cover the air pack are also available)
- "Fire Entry Suits And Proximity Suits". Murli Fire Safety.
- "Fire Rescue", Flight, 20 November 1941 – contemporary article on asbestos suits
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