3.2. Wind speeds
Wind speed averaged over 10 minutes at a height of 10 m
Wind
Force
Above flat ground
Characteristics
m/s
Wind type
0
0.0 - 0.2
Calm
Calm, smoke rises vertically or nearly
vertically
1
2
0.3 - 1.5
1.6 - 3.3
Slight breeze
Wind direction recognisable from smoke
plumes, the wind begins to be noticeable on
the face; leaves begin to rustle and weather
vanes can start to move.
3
4
3.4 - 5.4
5.5 - 7.9
Moderate wind
Leaves and twigs in continuous movement,
small branches begin to move. Dust and
paper begin to move over the ground.
5
8.0 - 10.7
Fairly strong
wind
Small leaved branches make swaying
movements; crested waves form on lakes
and canals.
6
10.8 - 13.8
Strong wind
Large branches move; you can hear the
wind whistling in telephone wires; umbrellas
can only be held with difficulty.
7
13.9 - 17.1
Severe wind
Entire trees move; the wind causes difficulty
when you walk into it.
8
17.2 - 20.7
Stormy wind
Twigs break off, walking is difficult.
9
20.8 - 24.4
Storm
Causes superficial damage to buildings
(chimney pots, roof-tiles, and TV antennae
are blown off).
10
24.5 - 28.4
Severe storm
Uprooted trees; considerable damage to
buildings etc. (occurs infrequently on land).
11
28.5 - 32.6
Very severe
storm
Causes extensive damage (occurs very infre
quently on land).
12
> 32.6
Hurricane
3.3. Noise declaration
The following values for emitted noise may be taken as general and conservative values for
ordinary installations of loader cranes on normal diesel engine powered trucks. Declared dual-
number noise emission values in accordance with ISO 4871:
• Emitted A-weighted sound power level for basic loader cranes in accordance with ISO 3744:
LwA = 103 dB (Uncertainty: KwA = 2 dB).
• Emitted A-weighted sound power level for loader cranes with hoist in accordance with ISO 3744:
LwA = 107 dB (Uncertainty: KwA = 2 dB).
• A-weighted sound pressure level at loader crane control stations in accordance with ISO 11201:
LpA = 95 dB (Uncertainty: KpA = 4 dB).
Safety precautions and warnings
22
Jonsered 1188S CE
