The NASC/CFA Guidance Note TG4:11* Anchorage Systems for Scaffolding sets out requirements for PRELIMINARY TESTS of scaffold anchors (to check the suitability and allowable loads of an anchor type in a particular base material) and PROOF TESTS (sample tests to check that anchors have been installed correctly – to be carried out on all jobs).
This will enable Scaffolders to satisfy the HSE SCAFFOLDING PROTOCOL pre-start checklist.
The new Proof Load testing requirement is for a tensile test of 1.5 x the design load. For heavy duty ties with a capacity of 12.2kN this means a test load of 18.3kN.
TG4:11 also describe six types of anchor most commonly used for anchoring scaffold ties. The Hydrajaws Scaffold Tester Kit will test all types to a maximum tensile load of 20kN. It is our premier eye bolt tester.
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