The diameter of the lifebuoy should not exceed 800mm, and the nominal diameter should not be less than 400mm. The specification of 1.5KG juvenile and children's lifebuoy is 510*340*90 (mm), the specification of 2.5KG adult lifebuoy is 720*440*105 (mm), and the specification of 4.3KG adult lifebuoy is 760*440*105 (mm). The outer field of the lifebuoy should be equipped with a floating door handle with a diameter of not less than 9.5mm and a length of not less than 4 times the diameter of the lifebuoy. This cord should be tightened on 4 equidistant parts near the ring body, and 4 grommets of the same length should be generated.
Integrated lifebuoy: a lifebuoy manufactured by using the overall forming process of the ring body for multiple times; Shell filling lifebuoy: the lifebuoy is produced by the processing technology of the overall forming of the ring body and the internal filling of raw materials.
The lifebuoy is divided into type A - integrated lifebuoy and type B - the inner lifebuoy of the casing according to the manufacturing process.
Identification example: integrated lifebuoy identification is: lifebuoy GB4302-2007A; The lifebuoy inside the casing is marked as: lifebuoy GB4302-2007B.
Lifebuoy Technical Standards:
1. Have a diameter of not more than 800mm and a nominal diameter of not less than 400mm.
2. It is made of natural water buoyancy raw materials, and the buoyancy of the water should not be made with the help of rush grass, cork board flakes or cork board particles, all other loose granular raw materials or all gas chambers with the help of pumping.
3. It can hold many objects of more than 14.5kg in the support plate for 24 hours.
4. It has a lot of quality of more than 2.5kg.
5. Arson is completely surrounded for 2s, so that it will not ignite or melt again.
6. Its structure should also bear the height-to-width ratio or 30m from the storage site to the light-load navigation waterline (whichever is larger), and the lifebuoy will be issued and thrown into the river surface in batches without endangering the practicability of the lifebuoy or its notes.
7. If the lifebuoy is equipped with a rapid throwing device with spontaneous smoke data signal and self-flashing light, it should have the quality to be able to operate the rapid throwing equipment.
8. There is a doorknob cable with a diameter of more than 9.5mm and a length of not less than 4 times the diameter of the lifebuoy. The doorknob cable should be tightly wrapped around the perimeter of the lifebuoy and fixed on 4 equidistant points to produce 4 grommets of the same length.
Attachments of the lifebuoy:
1. Self-lit floating lights: Each ship * less than half of the number of lifebuoys should be equipped with self-lit floating lights that meet the standards, so that the information lifebuoys and the parts of the user can be displayed at night, which is conducive to finding assistance. At this stage, the key to the self-lighting floating lights in the ship is to use dry batteries as the switching power supply. If you put the lifebuoy money into the water, the self-lighting floating lamp is floating on the surface of the river automatically, and a milky white shine is emitted.
2. Spontaneous smoke data signal: the lifebuoy around the cab of each boat * There are only 2 spontaneous smoke data signals that meet the standard regulations, when the lifebuoy is thrown, the smoke canister floats on the river surface with the lifebuoy and emits orange smoke.
3. Floating lifeline: Each side of the vessel has less than one lifebuoy should be accompanied by a floating lifeline that meets the regulations, and its length is usually 30 meters, or twice the distance between the light load waterline of the boat and the storage point, whichever is larger.
