Sunday 29 December 2013

Unintended side effects: Attachment strings and lanyards.

There are plenty of situations when you do not want to lose/drop something: In the water, working with heights or just critical equipment you need and simple can't afford to loose. One method to prevent lose, is to tie it  to something.  This can be a simple string, lanyard or something like a ‘gear keeper’ (retractable cable).

This method does have some problems:
- When the string/lanyard is long, this can cause a entanglement or strangle hazard. A brake away system which fails before this happens can prevent this danger.
- If the string connects two pieces of equipment, which need to be connected to each other be used. The string can cause the pieces of equipment to act like there are connected properly. For example: a belay/ rope backup device which need to be connected to the users using a carabiner. I have seen people attaching a rope backup device (a Petzl ASAP, warning about this on the petzl website) to the rope, but failed to connect it to the harness using the carabiner. He did not notice this, because the string cause the ASAP to follow him as it is suppose too. The string is not strong enough to replace the carabiner making the backup setup useless.
- A sting can get stuck inside various devices and defeat the working parts or cause a device to be left open (example, getting stuck at the gate of a carabiner) or a tangled up lanyard just gets in the way of a button (a swivel helps against this issue). The petzl link already methode above, also shows this danger when using the ASAP.

Note; I have no connection with Petzl, I have worked with Petzl equipment and that is why I knew these instruction of Petzl.

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