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knotted terminations knotted terminations
TESTED AND APPROVED
Fall factor F:
The fall factor is the ratio of the length of the fall taken to the length of rope
which arrests it.
Impact force IF:
This is the force which is transmitted to person, connector and anchor point
during the arrest of a fall. The impact force given in the performance tables is
that obtained by a fall factor 0,3 with a 100Kg mass for type A ropes, and an 80Kg
mass for type B ropes. This is required to be less than 6kN.
Number of falls:
The number of falls sustained is determined on a rig which reproduces factor
I falls.The terminations on the test length are made with figure of 8 knots. The
drop falls are made at intervals of three minutes. Five falls must be sustained,
using a 100Kg mass for type A, 80Kg for type B.
Elongation E:
This is the elongation of the rope which occurs between loads of 50Kg and
150Kg. It must not exceed 5%.
Knotability K:
A single overhand knot is tensioned with a 10Kg weight for one minute, then the
internal diameter of the knot is measured with the tension reduced to 1Kg. The
internal diameter divided by the rope diameter: K < 1,2.
Sheath slippage S: 2m of rope is placed in the pulling rig and drawn through it 5
times. Sheath slippage must not exceed 15mm for type B ropes, and (20 + 10 (D -
9)) mm where D is the rope diameter, for type A ropes.
Shrinkage R:
The percentage shrinkage of the rope after soaking in water for 24 hours.
Mass of the sheath:
The minimum sheath percentage which must compose the rope is calculated by
S = ((4D - 4) / D²) x 100 where D is the rope diameter.
Static strength:
The force required to break the rope when it is pulled slowly. type A ropes must
exceed 22kN, type B ropes 18kN.
Static strength with knotted terminations:
A sample of the rope terminated with a figure of 8 must withstand for 3 minutes a
force of 15kN (type A) 12kN (type B).
Rope identification:
The rope has a band fastened at its end indicating its type:
Type A or B, its diameter, the name of the manufacturer, and the number of the
Euro Norm to which it conforms.
Meaning of markings:
CE:
Conformity to the European directive
0120: Number of the Notified Body
EN1891: Technical reference.
EUROPEAN STANDARDS
EDELWEISS production follows a very high technical standard to
ensure safety. Our ISO 9001 manufacturing process guarantees
consistent quality. Our Personal Protective Equipment meets and even
exceeds the relevant EN standards.
Fall factor
Impact force
Elongation
Knotability
Static strength with
knotted terminations
Conformity to standards
Type