Recently, there was an incident where the winch wire slipped out of a temporarily installed wire clamp. The winch wire swung away and landed against an employee's hand causing injury to the upper phalanx of the right ring finger.
The photos below show the deployed clamp.
To ensure that this application is safe to use, a tensile test took place. The purpose of this test was to determine whether this application would be strong enough under normal conditions. The tests were carried out on the basis that the setup should be able to withstand more than 5 tonnes of force. This is the maximum tensile force of our own winches.
In practice, however, a splice point (as in the photo on the right) is not present when a
repair is carried out performed on a cable. The end is then held together with a piece of
tape. This situation was tested with the following results:
Actions – What to do?
Based on the tensile test, we can conclude that:
On this basis, the Board issues the following instruction:
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