Safety requirements for man riding basket
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The Man riding basket is one of the most lifted equipment's which used in construction onshore and offshore. There are many requirements for man riding basket which we will cover in this article as per the British Standard BS EN 14502-1
Man riding basket parts
Man riding basket requirements:
General Requirements:
- Suspended baskets shall be manufactured from material specified as being incombustible.
- Those parts of the suspended basket where persons are intended to stand shall have a minimum free-Standing height of 2 m.
- When the suspended basket is designed to be used in situations where falling objects may be a hazard, the basket shall be provided with a roof.
- Any aperture in the roof of the basket shall have dimensions Which shall not allow a sphere of 20 mm to pass through.
- As a minimum the roof of the basket shall be able to withstand the impact of a steel ball weighing 7 kg, falling from a height of 2 m, without plastic deformations exceeding50mm.
- Suspended baskets shall be protected against corrosion.
- When calculating the rated capacity of the suspended basket the weight of each person shall be taken as at least 80 kg plus at least 40 kg of equipment for each person.
Load lifting attachments:
8 x (weight of basket + rated capacity) for chains, and
10 x (weight of basket + rated capacity) for steel wire ropes including the end.
2. Load lifting attachment(s) shall be fitted to the basket in such a way that they can only be removed with tools.
When hanging from the hook, the vertical distance between the floor of the basket and the crane hook shall be ≥ 3 m.
Wire rope grips shall not be used as rope end terminations.
Floor requirements:
1. The floor of the basket shall be slip resistant.
2. The floor of the basket shall have drainage.
3. Free foot space shall be available under the external edge of the basket to avoid a crushing hazard.
4. Any aperture in the floor of the basket shall have dimensions through which a sphere of 20 mm
cannot pass through.
5. The free space on the floor shall be at least 0,6 m x 0,6 m for one person, and at least 0,4 m x 0,4 m
more for each additional person.
Inclination/ access & exit/ anchorage requirements:
- Suspended baskets shall be designed so that if a load 1,5 times the rated capacity is applied at the worst position on the floor, any resulting inclination shall not exceed 20°.
- Access to and exit from the basket shall be in accordance with EN 13586 (type 1).
- Any door or gate for entering or leaving a working basket shall not open outwards and shall have an automatic catch to prevent it from being opened inadvertently.
- Suspended baskets shall be provided with anchorage points in accordance with EN 795 for personal protective equipment.
Side protection
shall have on each side:Side protection with the following characteristics:
- Enclosed up to a height of at least 0,5 m so that a sphere of 20 mm cannot pass.
- The top of the enclosure shall be fitted with a guard rail.
- If the guard rail is lower than 1 m above the floor, another guard rail shall be provided at 1 m.
- A hand rail of at least 16 mm and not more than 40 mm diameter. To avoid crushing hands it shall be located 0,075 m to 0,1 m inside and 0,075 m to 0,1 m above the upper edge of the side Protection.
Lifting pad eye Design as per BS EN 10855-1:
- Pad eye hole diameter shall be within maximum 6% of shackle pin diameter.
- Pad eye thickness shall be minimum of 75% from the shackle jaw.
Name Plate Marking:
Man basket shall be marked permanently by the following details:
- manufacture name.
- model & serial No./ or ID.
- Year.
- Tare weight.
- safe working load (SWL) with clear number of persons.
- Max. Gross weight.
- other details.
Pad eye proof load test as per BS EN 10855-1:
Man basket shall be tested as the following:2.5 x MGW (Max. Gross Weight) at 4 lifting points.
1.5 x MGW (Max. Gross Weight) at 2 lifting points.
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