PERSONAL LIFE SAVING APPLIANCES
In accordance with International LSA Code which is annex to SOLAS Convention all LSA are divided into:
I’d like to tell you about personal LSA , survival craft & rescue boats.
To begin with personal LSA which include:
Lifebuoys: Every lifebuoy shall:
· Have an outer diameter of not more than 800mm & an inner diameter of not less than 400mm:
· Be constructed of inherently buoyant material:
· Be capable of supporting not less than 14,5kg of iron in fresh water for a period of 24h:
· Have a mass of not less than 2,5kg:
· Be constructed to withstand a drop into the water from the height at which it is stowed above the water line in the lightest seagoing condition or 30m, whichever is the greater:
· Not sustain burning or continue melting after being totally enveloped in a fire for a period of 2s:
· Be fitted with a grabline not less than 9,5mm in diameter & not less than 4 times the outside diameter of buoy in length.
At least one lifebuoy on each side of the ship is provided with a 30m long buoyant life line. Not less than ½ of lifebuoys on board must be fitted with 2 miles range self-igniting lights which shall be such that they cannot be extinguished by water, be of white color & be provided with a source of energy capable to work effectively for a period of at least 2h.A heavy lifebuoy (“man-overboard buoy”) is mounted on each side of the wheelhouse & is joined by a line to a light or self-activating smoke signal. Such signal shall emit of highly visible color for a period of at least 15minwhen floating in calm water, not be swamped in seaway, continue to emit smoke when fully submerged in water for period of at least 10s.
The lifebuoys are painted in easily-discernible color (orange-yellow) & provided with retro-reflective strips.
They are marked with the ship’s name & port of registry.
They are distributed all over the ship & accessible to everyone.
The number of lifebuoys depends on the ship’s length & type :on cargo ships 8-14,on passenger ships 8-30.
Lifejackets: There are rigid & inflatable lifejackets.
· An adult lifejacket shall be constructed so that after demonstration all persons can correctly don it within 1min without assistance, it is comfortable to wear & it allows the wearer to jump from a height of at least 4,5m into the water without injury & damaging the lifejacket;
The inflatable lifejackets must meet the additional requirements:
Each lifejacket shall be fitted with non-metallic two-tone whistle which is stowed in a pocket in the body of the jacket. Each lifejacket shall also have a white flashing light with chemical battery & with an operating period of at least 8h.The lifejackets are fitted with donning instruction & straps with quick-acting fasteners. The lifejackets are made of rigid-foam blocks covered with fabric or foamed soft plastic without any covering.
The lifejackets are dyed orange-yellow or luminous red & provided with retro-reflective strips.
The number of lifejackets on cargo ships conforms to number of crew members. There are also additional ones for watch-keeping personnel & for musterstations. On passenger ships there are 5% in addition to & at that 10% are lifejackets for children. They have inscription “child” on both sides. The lifejackets are marked with the maker’s name & approval number.
Immersion suit: Is a protective suit intended for protection against the hypothermia & heat loss of persons working in cold water or find theirself in cold water in the event of emergency situation.
There are two types of immersion suits: the first ones can keep human afloat & the other ones can’t do it.
· An immersion suit made of material with inherent insulation shall ensure that the wearer’s body core temperature doesn’t fall more than 2’C after a period of 6’C immersion in calm circulating water at a temperature of 0’C-2’C.
The suit is provided with watertight zip, lamp & signaling whistle & a connecting line to allow several persons floating in the water to link up or fasten onto a floating object. It is also fitted with approved retro-reflective material.
The suit is packed in an easy-to –open bag with printed instructions for putting it on. There may be symbols: ”No shoes”, “Only to be warn with lifejacket”.
The place where the suits are stored is shown in safety plan .The suits shall be marked with approval number , maker, model name or number, date of manufacture.
According with the safety certificate on ships with totally enclosed lifeboats 3 approved suits are available on board for every boat. On ships with open lifeboats an approved suit is held on board for every person permitted to be on board.
Thermal protective aid: A TPA is usually bag or suit from waterproof material which is intended for recovering of human body temperature of person who was in hold water.
The TPA shall:
The TPA shall function properly throughout in air temperature range –30’C to +20’C.
Survival craft must have minimum 3 TPA or 10% from the number of passengers.
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