11
©2017, Barry Cordage Ltd.
BARRY B-NET SYSTEM • INSTALLATION GUIDELINES rev. 5
Fig. 4:
“ S “ layering
Plan view (not to scale)
O
PTION
3
:
’’
S
’’
LAYERING
90˚
≥6m
≥4,2m
2m
2m
S
PEED UP TO
60
KM
/
HR
-
90˚
This configuration may be considered to decelerate an 80 kg mass travelling at maximum
60 km/hr, with a 90˚ angle of impact. More rows or additional compensatory measures may
be required as determined by the qualified authority.
Step 1: For this arrangement, a one 20 meters net and 11 support poles (two extra poles)
are required. To install the additional support poles, refer to the “ 4.4-Replacing support
poles “ section.
Step 2: Ensure that there is at least 6 m between the turning gate and the potential
obstacle. The minimum distance between the net and the obstacle is increased to 4.2 m
(more distance is better). Every effort should be made to increase the distance to 5 m or 6
m where possible. The spacing between each row of net must be a minimum of 2 m.
Distance between turning gate and first row of net must be at least 6m. If there is no
turning gate or if the 2 m net spacing is not practical, the qualified authority on site will
determine what appropriate compensatory measures are to be taken.
Step 3: Place the net to obtain an “ S “, as shown on figure 4.
Step 4: Drill the poles in the snow following the instruction in section “4.2- Drilling”.
Note
: Increasing the number of rows of nets may assist in reducing the distance between
the turning gate and the obstacle (see option 4-Double “ S ” Layering).
Note
: This scenario has not been validated for speed events or training where portions of
the course may require the use of additional rows of netting, A-Nets, air fences, etc.
Refer to the on-site qualified authority to determine the proper safety measures to be taken
for such activities.
Potential obstacle
Turning gate and
direction of impact
of the skier
Fall distance from
turning gate:
minimum 14.2m
6m
Turning gate
