DMM drop tests on slings

[TGB]

Also worth bearing in mind, is the effect that abrasion has on a sling. Don't know about now but they used to - on mountain rescue courses and high platform rescue courses for fire brigades.

 

They'd show the group two brand new slings. Put the first in a testing rig and pull it to failure. It would go to more than the stated max. loading before failure.

 

The second they would first abraise by very lightly pulling a nail board, (the thing used to smooth finger nails) over ten times. Then it was placed in the rig and tested to failure. The abraised slings would fail at only 40% of their stated max. loading.

[Nick Harrison]

Blimey, interesting video that was. Just made me notice that my weakest link in my climbing system is the cut away sling on the spiderjack!!

 

just wondered ian, have you changed the type of sling you use with the sj in light of the vid?

[Pete Bannister]

The abraised slings would fail at only 40% of their stated max. loading.

 

Nylon slings or kevlar TGB?

[BenR]

just wondered ian, have you changed the type of sling you use with the sj in light of the vid?

 

The sling in the spiderjack would only see half the load in a shockload situation. Plus there is all the rope in the system to provide stretch. Would be a different story if its only a piece of dyneema sling taking the fall. Like in the video. Plus you have some flex in your anchor too. Im pretty confident you will be fine with the dyneema on the spiderjack:biggrin:

[coleman]

Or if your really paranoid, get a Ropeguide, its got a fall arrest system in it!

[BenR]

Or if your really paranoid, get a Ropeguide, its got a fall arrest system in it!

 

Supersafe!!

[TGB]

Nylon slings or kevlar TGB?

Sewn Dyneema slings

[Pete Bannister]

Sewn Dyneema slings

 

Gulp!

[craigblues]

Which slings are best for rigging then?