- 4 - UNAC Guide No. 1 - May 2005
MD
Ann. 1
Type of risks considered Evaluation criteria and solutions to be adopted
(Tick the box corresponding to the solution adopted)
[5] Impact and crushing in the area of opening (Figure 1, risk B).
F Observe the safety distances illustrated, in the two different cases.
or:
F Measure the forces of opening (by means of the
special instrument required by the standard EN
12445) as illustrated.
Check that the values measured by the instrument
are less than those indicated in the graph.
Carry out the measurements in the following
points:
L = 50, 300 and 500 mm;
H = 50 mm,
at mid-height of the leaf and
at the height of the leaf minus 300 mm (max
2500).
N.B. The measurement should be repeated three
times in each point and the average value
considered.
F If the values of the forces are higher, install a
protective device in accordance with the standard
EN 12978 (for example a sensitive edge) and
repeat the measurement.
[6] Shearing between the sliding leaf and fixed
part during the movement of opening and
closure (Figure 1, risk C).
F The leaf of the sliding gate and the enclosure
must be free from gaps, or the gaps must be
covered with a net whose mesh sizes depend on
the distance of the leaf from the enclosure.
Dimensions of the
meshes of the net
Distance between the
leaf and the enclosure
< 18.5 120
from > 18.5 to < 29 300
from > 29 to < 44 500
> 44 850
F Or a protective device should be installed in
accordance with the standard EN 12978 (for
example a sensitive edge) as illustrated.
F Eliminate or protect any sharp edges, handles,
projecting parts etc. (for example by means of
covers or strips in rubber).
Protective device
Protective device
Protective device
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