9
©2017, Barry Cordage Ltd.
BARRY B-NET SYSTEM • INSTALLATION GUIDELINES rev. 5
4. Installation
4.1 Installing the configuration
Fig. 2:
One row of B-net
Plan view (not to scale)
O
PTION
1
:
S
INGLE ROW
60˚
≥4m
≥6m
S
PEED UP TO
60
KM
/
HR
-
60˚
Uphill section 40 m
Downhill section 20 m
Potential obstacle
Turning gate and
direction of impact of the
skier
A minimum of 3 net units of 20 m. each is required to decelerate an 80 kg skier traveling up
to 60 km/hr impacting sideway at a maximum 60º angle of impact. More rows or additional
compensatory measures may be required as determined by the qualified authority.
Step 1: Establish a minimum distance of 4 meters (more distance is better) between the net
and the obstacle. If it is not possible, then adequate compensatory measures should be
undertaken under the supervision and responsibility of a qualified authority. The minimum
safe distance from a turning gate to the first row of nets is 6 m. If a turning gate is not
installed, additional distance to obstacle is required. A qualified authority on site will
determine what additional compensatory measures may be required.
Step 2: Unroll the 3 nets one after the other, by positioning 2 nets (40m) uphill of a potential
obstacle and 1 net (20 m) downhill. Avoid stepping on the nets. In instances where the
potential obstacle requires more than 60 linear m. to protect, then install at least 40 m. linear
additional length uphill of the last area to protect.
Step 3: Connect the 3 nets minimum by following the instruction in section “4.3-
Connection”.
Step 4: Drill the poles in the snow, starting from the first, located 40 meters uphill of a
potential obstacle. To drill
,
follow the instruction in section “4.2-Drilling”.
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.
Turning gate
