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.

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Arrangements should also be made to monitor wind speed just prior to and during the climbing operations. The interchange of structural components between one model of tower crane and another may occur if the manufacturer has given approval. Your basket is empty. If the programme is of several days duration, daily forecasts should be obtained to ensure that the crane can be secured in a suitable configuration if high winds are indicated see Where the cables form a proximity hazard and it is reasonably practical to turn the power off, steps should be taken by the appointed person to isolate the power.

In the event that fall arrest equipment is selected a rescue plan is required as detailed above to avoid the consequences of suspension trauma when a person is suspended from a fall arrest harness. Previous experience As training contains a lot of practical work, instructors should be competent and experienced in the use of the relevant equipment. This is however not always possible as very tall cranes might require tying to an adjacent structure, often the building they are helping to construct, and consequently need erecting in stages.

Such devices are not recommended and should not be considered as a substitute for a safe system of work. The results of the risk assessment should be recorded in writing and made available to the person responsible for the preparation of the method statement. The slinger is responsible for initiating and directing the safe movement of the crane [see 8.

Records of training and experience of persons such as the crane operator assist in the selection of suitable personnel.

Rail mounted tower cranes may be of any of the types described in 9. The crane supervisor should be competent and suitably these to another person with trained and should have sufficient experience to carry out all relevant appropriate expertise for the lifting duties. Rail tracks of all types require periodic inspection, and if any defect or out-of-level becomes apparent, corrective action should be instigated immediately.

Customers who bought this product also bought BS Assessment and certification Instructors should be assessed and issued with a certificate if they have reached a satisfactory standard of effectiveness.

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

If in doubt, seek advice. The load should initially be lifted just clear of the supporting surface and be brought to rest while the slings, balance of the load, etc. The assessment should evaluate the risks involved and the nature and extent of any measures required to mitigate those risks.

BS 7121-2-5:2012

Selection and assessment of appointed person When selecting an appointed person the employing organization should take into account the variety and complexity of the operation, as well as all the problems that could arise from proximity hazards and environmental courses.

It should be carried out under supervision. Mobile cranesBSSpecification for automatic safe load indicatorsBSCode of practice for earthingBSCode of practice for selection, use and maintenance of personal fall protection systems and equipment for use in the workplaceBS ENCranes safety — Requirements for health andsafety — Limiting and indicating devicesBS EN Having obtained from the crane manufacturer the loads imposed by the crane noting that these could be net and exclusive of any impact of safety factorsthe foundation should be designed by a competent engineer so that the ground bearing capacity is not exceeded, including that caused by overturning moments.

Cruciform bases cover a larger area than cast-in bases and therefore might not be suitable for congested sites. If an individual or organization does not have expertise in lifting operations they should not hire cranes but should opt for a contract lift.

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 risk assessment for this activity might require the use of personal fall protection equipment, see BS This may be below the maximum in-service windspeed specified by the crane manufacturer. The return welding current lead should be secured to the welded part, as close as practicable to the point of the weld.

Installation work should be avoided if the conditions e. 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. Duties, but not responsibilities, may be delegated to another person where considered appropriate.

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

Operators and signallers should pay particular attention to possible dangers of persons working out of sight. In such circumstances the signallers should obtain the agreement of the crane coordinator before carrying out any operation.

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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.

All design work should be carried out by a competent engineer. Manuals sometimes deal with dismantling procedures by the simple statement that they are the reverse of erection procedures.

Secondary control measures could include the use of lanyards for hand tools, toeboards and mesh panels on working platforms. The interchange of structural components between one model of tower crane and another may occur if the manufacturer has given approval.

Full text of “Safety British Standards”

71215- should be in good condition and safe for the particular operations covered. These can provide an assessment of skill, an opportunity for limited instruction in weak areas and a practical test of competence. Similarly, those companies designing internal courses might wish to fit the basic course to their more special needs. NOTE 2 All values have been rounded for convenience of use.

Example of typical procedure for climbing frame thorough examinations and checks Procedure for the thorough examination of frame for top climbing of tower cranes Procedure for 6 monthly thorough examination D. The foot of the climbing cylinder s is then located on reaction points on the tower. Machines which can be converted to be used as cranes e.

Information regarding online access to British Standards via British Standards Onlinecan be found at http: Search all products by. Where any part of the crane or its load cannot be 712-5 clear of such hazards the appropriate authority should be consulted. The difference between the two options is summarized in Figure 1.

BS 7121-5:2006

Once the bottom of the tower has reached the middle collar, the tower is clamped to the middle and top collars, leaving b bottom collar to be removed and available for the next climb. Any corresponding instructions from the crane coordinator to the crane operators should be given via the respective signallers.

When operators or slingers are recruited it is essential that employers check that their qualifications and experience relate to the job they are to do.