Archive | Technical

Loading for RA Anchor Points

The support point capacity for a Rope Access anchor is 15 kN (almost 1500 kgf, or about 1.5 tonnes), in the direction of the likely load. This has been the case for many years (check BS7985, or the IRATA code, annex F). This year I have come across a “spate” of otherwise competent RA “advisors” […]

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Restraint or Fall Arrest

In the past, the words “Restraint” and Fall Arrest were often used to separate work methods and anchor loads. “Restraint” was frequently misused .. confusion reigned and we all got wet. There was even a suggestion that the load capacity of a “Restraint” anchor could be reduced to 1kN. .. this is no longer the […]

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Containment Standard

There is now a method of specifying containment at various levels within a construction project. The Containment Standard offers the opportunity to specify different containment at three levels within the floor/storey height. This can be the same as the 20 mm toe board containment level within EN 13374, or it can be a tighter performance […]

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Rope Access Anchors

There has been some confusion over the specification of anchors for rope access. Many have referred to EN 795 Class A1, whose minimum structural requirement from 2012 has been 12kN (in the direction of applied load). BS 7985 the Code of Practice for Rope Access requires a support capacity minimum of 15kN (in the direction […]

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Exciting changes in Scaffold Design

NASC have launched a new version of TG20, which will have a significant and constructive impact on all tube and fitting scaffold, and scaffold design. TG20:13¬†will massively increase the overall confidence in scaffolding, as a far greater proportion of scaffold being erected can now be readily shown to be fit for purpose, and to Comply. […]

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Harness & Lanyard User Weight

We have noticed a lot of confusion regarding the harness user weight and the “capacity” of the equipment. All WatH equipment is tested using 100kg “solid” mass (manikin, weighted test dummy, wooden torso, steel mass). The human body is not rigid, and in drop tests is equivalent to about 85% of its weight in a […]

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