BS Code of practice for safe use of cranes. Tower cranes. standard by BSI Group, 04/28/ View all product details. Most Recent. Track It. Find the most up-to-date version of BS at Engineering BS BRITISH STANDARDCode of practice for safe use of .. BSI •9 BS Complex liftIf the lifting operation is.
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The recipient of the permit to work should sign the document and take it into safe custody understanding that he is responsible for the work and the personnel 77121-5 with that work. Where full edge protection is not provided personnel should wear fall protection equipment at all times. Consideration should also be given to the wind area of the load to ensure that its movement in the wind does not present a hazard. Operators and signallers should pay particular attention to possible dangers of persons working out of sight.
All design work should be carried out by suitably qualified engineers. If a crane that is tied to an adjacent structure is being climbed down, particular attention should be paid to ensuring that the crane is left in a suitable configuration at the end of each day or climbing shift to avoid excessive tie or tower forces in 7211-5 out-of-service condition.
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Full text of “Safety British Standards”
Learn more about the cookies we use and how to change your settings. Therefore as far as safe crane operations are concerned, the benchmark for safe working practices is the BS series. These end stops should be shock absorbing or sprung, and should be moved hard against the crane chassis if the machine is to be used in a static position for any period of time.
If a crane has been bx to such usage, consideration should be given to bx use of non-destructive testing to detect possible fatigue cracking. These should include checks that: Personnel should remain entirely inside the carrier during raising, lowering and positioning to avoid pinch points.
Particular attention should be paid to: The difference between the two options is summarized in Figure 1. The self-levelling 71121-5 has a limited range of correction and great care should be taken when travelling over uneven ground. The benefit being that the operator can follow the load and might be able to keep it in sight from point of pick up to point of delivery.
Courses should however be as practically based as possible. While one instructor can deal with a number of trainees when teaching in a classroom, practical work should have a more individual approach.
This should include arrangements for the bss of problems to the Appointed Person if he is not present on site during the operation and the leaving of the part assembled crane in a safe condition. It is envisaged that a full treatment will be given in a future publication.
The loads imposed by the crane should be obtained from the crane manufacturer or other authority on crane design and construction.
Having carried out such an interchange, a tower crane should be retested in its new combination, and the interchanged parts should be specified on the test certificate. These enable the Appointed Person and the Erection Supervisor to decide if climbing should go ahead.
Some crane operators e. Manufacturer’s sales leaflets should not be relied on for the rated capacity for a specific crane. When repairs are carried out to any parts of the crane structure, the correct procedure laid down by the manufacturer should be strictly followed 7121-55 avoid changing the properties of the material. The total area of the rail tracks in use should be fenced off to prevent access by unauthorized persons. These can provide an assessment of skill, an opportunity for limited instruction in weak areas and a practical test of competence.
If the weight is marked, check in the same way as in item a to ensure it includes all parts of the load. NOTE 3 When dealing with a hollow body, check whether or not it contains anything and whether or not any such contents are liable to move. For lifting operations carried out on construction projects, further information on the duties of personnel is given in 4. For tower crane installation operations bz risk assessments hs unlikely to be sufficient as every site and installation operation has hazards that are unique to that situation and should be taken into account in the assessment.
When left for long periods e. Stability is normally obtained by means of ballast weights which should be adequately secured to prevent accidental displacement or removal, and the detail of the ballast should be on the notice near the base of the crane giving the crane capacities.
NOTE Past experience has shown that artificial light is inadequate for the task to be carried out safely. Diagrams and drawings in the crane instruction manual relating to erection and dismantling b use the same system of marking and show the correct location and orientation of components. The method of fastening depends on the magnitude of the tie loads and the strength and construction of the structure.
For over 28 years UK experts have worked together codifying recommendations to address these issues that have been adopted and used by the crane industry.
The tower sections should be checked before use to ensure that they are of the correct type for the particular crane. These may be either existing cranes on the site, tower or mobile, or mobile cranes brought onto site specifically for the climbing operation. Micro tower crane Micro tower cranes are tower crane units complete for mounting on the top of either a special mast or a hoist mast.
NOTE A number of proprietary systems are available for this purpose. This should include agreed access routes, taking into account ground conditions and also the need for vehicle marshals banksman. Slinger The slinger should be responsible for attaching and detaching the load to and from the crane hook and for the use of the correct accessories for lifting and other equipment in accordance with the planning of the operation.
Before lifting a load, the hoist line should be plumb. Where the crane remains on its original base this can be achieved by the use of internal telescoping equipment or external climbing frames. Except where specific forms are required by legislation, the format in which records are kept is not important. The open side of the frame incorporates means of holding a new tower section prior to raising the climbing frame, moving it into the tower after climbing and then lowering it on to the top of the previous section.
In cases of repetitive or routine basic lifting operations, this planning might only be necessary in the first instance, with periodic reviews to ensure that no factors have changed.
The erection supervisor should be in close liaison with the site management gs should carefully consider any comments or warnings that management, any members of the site team, or any other appropriate person or body make.
Arrangements should therefore be detailed to obtain accurate weather forecasts in the period leading up to the start of the operation. Risk assessment A risk assessment should be carried out in accordance with Instructor qualities In addition to operating competence, an instructor should have the motivation to be an instructor and the ability to communicate effectively, to be able to lead and control and to be responsive to the varying needs of different trainees.
The same principles should be applied when the operations are carried out at a temporary site, for example construction, or when the crane is a permanent fixture, for example in a factory or at a dock.