Pay attention to the wind speed values in table below in relation to the
information in the WARNING section of the LOAD CHART. Any governmental
regulations applicable to the job site must also be observed.
Wind Force Wind Speed Consequences
Scale Terms Described mph kph Inland Territories
0 Calm 0 - 1 1 Calm, Smoke
rises vertically
1 Very Light 1- 3 1 - 5 Wind direction
indicated by the
smoke and not
by the banner
2 Light Breeze 4 - 7 6 - 11 The wind can be
felt on the face,
the leaves
rustle , the
banner moves
3 Gentle Breeze 8 - 12 12 - 19 Leaves and small
branches move,
banners lift
4 Mild Breeze 12 - 18 20 - 28 The wind raises
dust and leaves.
Branches move
5 Fair Breeze 18 - 24 29 - 38 Small bushes
sway. Wave
crests form on
the sea.
6 Strong Breeze 24 - 31 39 -49 Large branches
sway.
7 Strong Wind 31 - 38 50 - 61 All the trees sway
Safety
40 P/N 12261-319 REVISED: August 2012
Courtesy of Crane.Market
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