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KERNMASTER.
Static-rappelling Kernmaster line is constructed
with a traditional "mantle" sleeve consisting of
48 strands of polyester. The inside, or "kern," is
a braided core of energy-absorbing nylon. The
core is fully steam-stabilized to enhance the
rope's flexibility and prevent hardening in
service; the braid also bends more easily and
with less fatiguing of the core when cycled
over sheaves or dropped over a parapet.
Sleeve is either white or solution-cast fiber
(color added prior to yarn production)
which makes for lasting colors and
enhanced wear resistance. Standards:
11mm, 12mm: CEO 120 EN 1891 Type A
Diameter
Inches (mm)
Average
Break Strength
Kg
Minimum
Break Strength
Kg
Working Load
for Rigging
Kg
Lbs/
100ft
Weight
Kg/
100m
3/8" (9mm)
7/16" (11mm)
1/2" (12mm)
5/8" (16mm)
Lbs Kg Lbs Kg Lbs
4,245 1,925 3,821 1,733 849 385_2.3 3.4
7,100 3,220 6,390 2,905 1,420 644 5.5 8.2
9,200 4,182_8,600 3,910_1,840 836_7.6 11.4
12,500 5,682 11,250 5,682 2,500 1,136 11.4 17.0
* Knots and abrupt bends significantly reduce the strength of all ropes and lowers maximum working load.
* * For situations where a man is on the rope, cut these working loads in half. Working load is based on static
or moderately dynamic lifting/pulling operations. Instantaneous changes in load up or down, in excess of 10% of
the rope's rated working load constitutes hazardous shock load and would void normal working load recommen-
dation. Consult Yale Cordage for guidelines for working loads and safe use of rope.
Energy Absorption
The colored area under the
curve represents the rope's
energy-absorption capability.
■ Green working 622 ft. lbs./lb.
■ Red ultimate 9,775 ft. lbs./lb.
Dielectric Strength: The
maximum allowable leakage
for clean, dry Kernmaster is
500 Micro Amperes when
tested at 90KV per ASTM
1701-05 "Routine Production
Test". Absorbed and
entrained moisture or
impurities will increase ropes
conductivity dramatically.
Available with factory splices.
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
% of elastic elongation
Specific Gravity: 1.23
Maximum Working Load
Minimum Break Strength
Average Break Strength
"
