1 - 22
IMPORTANT
It is strictly forbidden to use the platform when the wind speed exceeds 45 km/h.
- To visually recognise this wind speed, refer to the empirical wind evaluation scale below:
BEAUFORT scale (wind speed at a height of 10 m on a flat site)
Force
Type of wind
Speed
(knots)
Speed
(km/h)
Speed
(m/s)
Effects on Land
Sea conditions
0
Calm
0 - 1
0 - 1
< 0,3
-Smoke rises vertically.
-Sea is like a mirror.
1
Light air
1 - 3
1 - 5
0,3 - 1,5
-Smoke indicates direction of wind.
-Ripples with appearance of scale, no foam
crests.
2
Light breeze
4 - 6
6 - 11
1,6 - 3,3
-Wind felt on face, leaves rustle.
-Short wavelets, but pronounced.
3
Gentle breeze
7 - 10
12 - 19
3,4 - 5,4
-Leaves and small twigs in constant motion.
-Very small waves, crests begin to break.
4
Moderate breeze
11 - 16
20 - 28
5,5 - 7,9
-Wind raises dust and loose pieces of paper;
small branches are moved.
-Small waves, becoming longer, numerous
whitecaps.
5
Fresh breeze
17 - 21
29 - 38
8 - 10,7
-Small tees in leaf begin to sway.
-Wavelets form on inland waters; moderate
waves, taking longer form.
6
Strong breeze
22 - 27
39 - 49
10,8 - 13,8
-Large branches in motion, whistling heard
in overhead wires, umbrella use becomes
difficult.
-Larger waves forming, whitecaps everywhere,
some spray.
7
Near gale
28 - 33
50 - 61
13,9 - 17,1
-Whole trees in motion, inconvenience felt
when walking against the wind.
-Sea heaps up; white foam from breaking
waves begins to be blown in streaks along
the direction of the wind.
8
Gale
34 - 40
62 - 74
17,2 - 20,7
-Wind breaks twigs off trees; impedes progress.
-Moderately high waves of greater length;
edges of crests begin to break into spindrift.
9
Strong gale
41 - 47
75 - 88
20,8 - 24,4
-Wind damages roofs (chimneys, slates, etc.).
-High waves, crests of waves begin to topple,
streaks of foam; reduced visibility.
10
Storm
48 - 55
89 - 102
24,5 - 28,4
-Seldom experienced inland; trees uprooted;
considerable structural damage occurs.
-Very high waves; white streaks of foam;
reduced visibility.
11
Violent storm
56 - 63
103 - 117
28,5 - 32,6
-Very rare, widespread damage.
-Exceptionally high waves able to hide medium
sized ships from view, reduced visibility.
12
Hurricane
64 +
118 +
32,7 +
-Devastating damage.
-Sea completely white; air filled with foam and
spray, very reduced visibility.
F - MAINTENANCE
IMPORTANT
Your platform must be periodically inspected to ensure its continued compliance.
The inspection frequency is defined by the legislation applying in the country in which the platform is used.
In France, a general periodic inspection every 6 months (order of 1 March 2004).
647449
(30/11/2015)
MT
732/932
ST3B
Summary of Contents for MT732ST38
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