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: Zujinn Vogal
Country: Yemen
Language: English (Spanish)
Genre: Automotive
Published (Last): 22 March 2017
Pages: 455
PDF File Size: 1.41 Mb
ePub File Size: 14.41 Mb
ISBN: 334-6-35451-925-3
Downloads: 70168
Price: Free* [*Free Regsitration Required]
Uploader: Faucage

It is essential the operator does not tamper with any controls, mechanisms or equipment, including limiting and indicating devices, either to enable the crane to function outside the operational range or loads specified by the crane manufacturer or other competent person, or to attempt to correct any suspected defect.

All access including that for the driving position s of the crane and for inspection, maintenance, repair, erection and dismantling of the crane should be maintained in good condition. Certain safety equipment, for example helmets, safety spectacles and fall protection equipment, can deteriorate with age and should therefore be considered for renewal periodically.

As part of the planning process bz is important that the design and fabrication of the ties is taken into account, together with the connection to the bz. Successful climbing depends on detailed planning and effective team work by suitably trained and experienced personnel.

It is essential that the Principle Contractor on a site is fully involved in the planning as they have overall responsibility for ensuring that bz operations are carried out safely and without incident.

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. This is the point at which the total weight of the load is regarded as being concentrated, i. If possible, get someone to inform the electricity supply vs at once.

  KAIVALYA DARSHANAM PDF

NOTE For basic lifts it may be appropriate for one person to undertake more than one of the duties identified in 7. Vs associated with lifting operations should not be carried out by personnel whose efficiency is impaired by alcohol, drugs or other influences. In all cases the lifting operations should be planned by the Appointed Person.

A suitable allowance needs to be made for deflection when calculating the clearance between adjacent cranes see 4. These enable the Appointed Person and the Erection Supervisor to decide if climbing should go ahead. End stops or buffers should be positively fixed bolted or pinned to the rail and precisely adjusted to ensure that the crane makes contact with both sides simultaneously.

It is also important that only components specified by the manufacturer are used in the ns process.

BS – Code of practice for safe use of cranes. Tower cranes (British Standard)

As part of the planning process it is important that the design and construction of the base 7211-5 taken into account, together with the connection to ground or adjacent structure. The assessment should evaluate the risks involved and the nature and extent of any measures required to mitigate those risks. Another type of climbing crane can ascend through a structure using a climbing frame, the supported crane being provided by the surrounding structure.

These hazards might include: For climbing operations the weather forecasts should be site specific, giving mean and gust wind speeds at required heights7121- direction and weather for the next five days. Your basket is empty. Unless specified otherwise this limiting wind speed should be taken as the maximum gust speed.

NOTE As the crane operator is required to be at the controls of the crane when it is handling loads, it would not be appropriate to appoint the operator to be in control of the lifting operation.

  CAT PARAJUMBLES PDF

Sensors are often positioned on the highest point of the crane.

BS 7121-2-5:2012

The appointed person should be given authority to carry out the duties involved, including consulting others with specialist knowledge and experience, and should be able to delegate duties and tasks for any part of the safe system of work to suitably qualified individuals.

This activity should be part of the initial planning process. The BS series has been accepted as representing the consensus of practical experience for safety on cranes.

The appointed person should ensure that such a statement is correct and if there is any doubt obtain further information from the tower crane manufacturer.

The most suitable type of work restraint system is an adjustable lanyard, adjusted to be as short as possible to ensure that a person is restrained within the carrier.

Operation of limit switches, check valves and similar devices could prevent some motions of the crane with the carrier still suspended.

BS 7121-5:2006

NOTE If cranes are used to lift loads from waterthe load could also include forces due to water flow or suction and the effect of loss of buoyancy. The weight should be determined by any of the following procedures. Crane wheels should not be used for earthing the crane. There can be four single wheels on smaller machines or more usually four double wheel bogeys.

It also covers the appropriate selection and training of personnel involved in the safe installation and use of tower cranes.

BSI offers members an individual updating service 712-15 PLUS which ensures that subscribers automatically receive the latest editions of standards.

We use cookies to make our website easier to use and to better understand your needs.

Author: admin