BlueSky Mast AL1 STANDARD Series, Руководство пользователя

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Payload Capacity - Wind Load - Anchor Radius
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9
Guying
Guy lines are used to maintain the position of the top of the mast directly over the center of the tri-
pod. This is its position of greatest strength, which will maximize the load carrying capacity of the
mast in terms of payload as well as wind survivability. When no wind is present, the guy lines re-
main critical to stabilize the top of the mast and to keep the instrument mounts level.
Wind Effects
When wind blows on a mast and its instruments, the guys restrict the top of the mast and its instru-
ments from moving off center. The mast’s reaction to wind will put tension in the guy line and force
the top of the mast downward in compression, the amount of which will vary depending on the an-
chor distance as described below.
The size and shape of the instruments determine the amount of force they produce in any given
wind condition. Don’t forget that the mast itself is a surface area exposed to the wind and its wind
load will need to be added to the instrument wind load to get the total wind load on the system. The
mast wind loads are given in the table at the end of this section and clearly show the benefits of
Secondary Guying.