BS 7121-5 PDF

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.

Author: Shakakus Nall
Country: Cambodia
Language: English (Spanish)
Genre: Career
Published (Last): 10 April 2018
Pages: 453
PDF File Size: 20.39 Mb
ePub File Size: 20.61 Mb
ISBN: 514-9-15098-939-4
Downloads: 8502
Price: Free* [*Free Regsitration Required]
Uploader: Dasho

Again there may be more recent versions of the document. He should also ensure that the operation is under the constant supervision of the crane erection supervisor.

These hazards might include: The hoist rope should be vertical at the start of and throughout the hoisting operation. Any user claiming compliance with this British Standard is expected to be able to justify any course of action that deviates from its recommendations. This should lead to arranging for appropriate action to minimize any adverse effects, 7211-5 to giving appropriate notice to all persons concerned. Lanyards should be connected to a suitable anchor point at all times and where lifelines are provided, a suitable device should be used in conjunction with the lanyard to permit full passage along the jib without detachment.

Designers should obtain and make available to the CDM planning supervisor, information relating to the site and sb s of crane to be used. NOTE Attention is drawn to The Management of Health and Safety at Work Regulations as amended [9] which require crane operators to be over 18 unless they are under the direct supervision of a competent person for the purpose of training.

This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. The balance of the crane should 712-15 checked before each extension of the climbing equipment. Operators and signallers should pay particular attention to possible dangers of persons working out of sight.

If balance cannot be achieved within this tolerance climbing should be stopped whilst expert advice is sought. Extra care should be taken in ensuring that outriggers, jacks, etc. It is essential that the Principle Contractor on a site is fully involved in the planning as they have overall responsibility for ensuring that the operations are carried out safely and without 7121.

Where possible lifting of loads over highways, railways, rivers or other places to which the public have access should be avoided. The self-levelling function has a limited range of correction ba great care should be taken when travelling over uneven ground.

  AROMATIZACION ESTEROIDES PDF

BS – Code of practice for safe use of cranes. Tower cranes – BSI British Standards

The assessment should evaluate the risks involved and the nature and extent of any measures required to mitigate those risks. This should include arrangements for the notification 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 quite common for operators of self-erecting tower cranes to carry out other tasks associated with the crane such as installation, maintenance and slinging duties.

When lifting a load from a stack, all persons bx be instructed to 71215 away from the stack in case adjacent materials or objects are displaced. Proximity hazards Details of any proximity hazards that might impinge on the operation should be recorded, such as railways, roads, public access, aircraft or other cranes. All persons should be instructed to stand clear of the load being lifted. NOTE If cranes are used to lift loads from waterthe load could also include forces due to water flow 7121–5 suction and the effect of loss of buoyancy.

It is recommended that access to tower cranes is prohibited for personnel whose presence is not essential, wherever possible. Take no action until it has been confirmed that conditions are safe. The return welding current lead should be secured to the welded part, as close as practicable to the point of the weld.

NOTE The Emergency Services cannot be relied upon for rescue of personnel from tower cranes as there is a wide variation in resources for rescue from height across the UK.

Full text of “Safety British Standards”

NOTE Additional recommendations covering clearances are contained in People with handicaps or disabilities are not necessarily unable to work safely with cranes, but extra care might be needed in their selection. If this is not possible, permission should be obtained from the appropriate authority and the area kept clear of traffic and persons.

It is desirable that the content of such courses matches the information provided by the employer.

Whilst the crane is working the tower is clamped to both collars allowing the forces generated by the crane to be transferred to the collars and into the building structure, usually via a steel grillage.

Where tower cranes inter-arc, a vertical hs should be maintained to prevent collisions. The erection supervisor should be in close liaison with the site management and should carefully consider any comments or warnings that management, any members of the site team, or any other appropriate person or body make.

  JAMES STUART RUSSELL THE PAROUSIA PDF

The nature and extent of this training depends on the complexity of the new equipment and the degree of difference from the equipment with which they are familiar. The foot of the climbing cylinder s is then located on reaction points on the tower.

BS 7121-5:2006

Care should be taken when the crane is moved to different locations to ensure that sufficient rope is fitted for each operation. Points to be taken into account in making the selection of the tower crane include the following: Detailed information about the content of training courses varies depending on the individual circumstances, so the information given is intended to assist organizations, running training courses internally or as a service to other organizations, to determine whether their courses are adequate.

The design of these foundations should be carried out by a competent engineer. Where practicable, the power supply to a travelling crane should be through a cable winding drum or a properly installed, insulated and protected collector system.

This avoids the need for slewing during climbing. Rail tracks should not be welded or subjected to heating. This can be by a reliable source of information, weighing the load, or calculation with allowance for possible inaccuracies.

BS 7121-2-5:2012

Wind-speed indicating and monitoring devices It is essential that tower cranes are fitted with anemometers or other wind-speed monitoring devices.

Arrangements should therefore be detailed to obtain accurate weather forecasts in the period leading up to the start of climbing. To achieve and maintain a safe system of work for the implementation of a permit system several conditions need to be met and these should include the following: Course structure The course should follow a carefully devised programme which ensures that each 712-15 is introduced at an appropriate point in the course, building on what has gone before, allowing adequate time for learning and practice before moving on to subsequent operations.

Guidelines on radiocommunications for tower cranes are given in Information Sheet RA published by the Office of Communications 71215. In order that this responsibility can be effectively discharged, the appointed person see 4. The travel distance should be well within the length of the trailing cable.