Description
Gantry crane outdoor use crane considered wind scale
| Wind Scale |
Name |
Wind Speed(m/s) |
(km/h) |
Land Ground Object |
Wave of the Sea |
Wave Height(m) |
Max. Height(m) |
| 0 |
Breezeless |
0.0-0.2 |
＜1 |
Calm, smoke go up straight |
Calm |
0.0 |
0.0 |
| 1 |
Light wind |
0.3-1.5 |
1-5 |
Smoke in the direction of the wind |
Microwave no droplets |
0.1 |
0.1 |
| 2 |
Breeze |
1.6-3.3 |
6-11 |
Feel the wind |
Small wave peak is not broken |
0.2 |
0.3 |
| 3 |
Gentle Breeze |
3.4-5.4 |
12-19 |
Flags unfold |
Small wave peak is broken |
0.6 |
1.0 |
| 4 |
Soft wind |
5.5-7.9 |
20-28 |
Blow the dust |
Small waves droplets peaks |
1.0 |
1.5 |
| 5 |
Cool breeze |
8.0-10.7 |
29-38 |
Small tree sway |
Moderate waves fold droplets peak group |
2.0 |
2.5 |
| 6 |
Strong breeze |
10.8-13.8 |
39-49 |
Wires rustling |
The big waves droplets away from the peak |
3.0 |
4.0 |
| 7 |
Strong breeze (gusty wind) |
13.9-17.1 |
50-61 |
Difficult in walking |
The broken peak droplets into strips |
4.0 |
5.5 |
| 8 |
High wind |
17.2-20.7 |
62-74 |
Damage branches |
Wave rise with spray |
5.5 |
7.5 |
| 9 |
Strong gale |
20.8-24.4 |
75-88 |
Small damage of houses |
Wave peak back roll |
7.0 |
10.0 |
| 10 |
Fierce wind |
24.5-28.4 |
89-102 |
Pull up the trees |
Waves rolling and roar |
9.0 |
12.5 |
| 11 |
Storm wind |
28.5-32.6 |
103-117 |
Severely damaged |
Wave peak all become droplets |
11.5 |
16.0 |
| 12 |
Typhoon (storm) |
＞32.6 |
＞117 |
Severely destroyed |
Waves monstrous |
14.0 |
- |
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