BS EN 13414-1 PDF

These are a the inclusion of the tensile efficiency of the rope termination in the WLL calculations and b the restriction of rope grade to , even when a rope of a higher grade, such as , is used. EHSR 4. BS EN also places reliance on confirming the security of a ferrule-secured eye termination FSET by reference to dimensional and procedural verification stipulated in prEN , the final version of which is not expected to be published until the Spring of Accordingly in order to maintain the same WLL as before from a sling, a larger rope size will be required under the new standard, resulting in unnecessary additional cost to the user with no apparent safety benefits. The second key element, b above, restricts the WLL calculation to grade rope and thereby negates any potential benefits gained by substituting a higher grade rope to offset the increased rope diameter.

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These are a the inclusion of the tensile efficiency of the rope termination in the WLL calculations and b the restriction of rope grade to , even when a rope of a higher grade, such as , is used. EHSR 4. BS EN also places reliance on confirming the security of a ferrule-secured eye termination FSET by reference to dimensional and procedural verification stipulated in prEN , the final version of which is not expected to be published until the Spring of Accordingly in order to maintain the same WLL as before from a sling, a larger rope size will be required under the new standard, resulting in unnecessary additional cost to the user with no apparent safety benefits.

The second key element, b above, restricts the WLL calculation to grade rope and thereby negates any potential benefits gained by substituting a higher grade rope to offset the increased rope diameter. The apparent reasoning behind b is that should the WLL marking become removed from the sling or become illegible, the sling would have to be removed from service until examined by a competent person who could assess the rating based on a measurement of the rope diameter.

Being unable to differentiate between rope grades and , the competent person would have to consider the rope grade as being of the lower value. Not surprisingly, this has given rise to a number of protests in the UK, not least on the grounds that if the sling is adequately marked when supplied, there does not appear to be any technical justification why such de-rating is necessary when employing rope of a higher grade.

In hindsight, it is generally felt in the UK that it would have been more appropriate had this requirement been applied only to slings that needed to be assessed in service rather than to a newly manufactured sling.

In order to bring about a more rational approach to the design of such slings in the future, initiatives are presently being considered in the UK to bring about an amendment to clause 5. If successful, this will mean that when employing rope of grade , the rope size can remain the same as that previously required to satisfy the design requirements of BS Effectively, the reduction in rating due to the termination is compensated for by the increase in rating due to the higher breaking force from the higher grade rope, see table 1.

This initiative has the support of the HSE and Bridon is to action introduction forthwith. Accordingly, unless otherwise agreed with the purchaser, the following Interim Measure is being taken: When the sling is produced from rope of grade , the sling rating WLL will be based on the strength of rope of grade The efficiency of the rope termination will be taken into account when calculating the sling rating.

As the sling will essentially conform to BS EN apart from clause 5. An EC Declaration of conformity will be issued. NOTE: If a rope of grade or is used, but the calculation of the sling rating is based on the strength of rope of grade , the sling will conform to BS EN General information for purchasers and users: Complying with the harmonised European standard is recognised as only one method of complying with the Essential Health and Safety Requirements EHSR.

Irrespective of the above or whether the harmonised European standard is fully operational, sling manufacturers are free to conduct their own hazard assessment, identify the relevant EHSR and devise measures to comply with them providing that the assessments and the means of compliance with the EHSR are justified and recorded in the manufacturers technical file.

Therefore, until BS EN has been amended, purchasers may wish to leave it to the sling manufacturer to decide which standard, if any, applies to satisfy a particular sling rating requirement. It is for OSD Inspectors. Date:

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BS EN 13414-1

The Green document status indicator indicates that the document is: a current in the Construction Information Service and b the latest version - ie it does not have any other documents that replace or amend it and is promoted as a current document by the publisher. The Amber document status indicator indicates that some caution is needed when using this document - it is either: a current in the Construction Information Service but has a document or documents that replace or amend it, so please look at the "Newer Versions" tab or b not in the Construction Information Service but with another reason why it may be relevant to our customers such as being cited in NBS or in the Building Regulations Approved Documents. Again there may be more recent versions of the document. The Red document status indicator indicates that the document is an old version The document has likely been withdrawn by the publisher, also the meta data presented here may be out of date as it is no longer being maintained by the editorial teams at NBS.

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