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APPENDIX “A”
Air Noise
(Directive 2006/42/EC, annexe 1, point 1.7.4.2 letter u)
–
The continuous equivalent weighted level (A)
of noise pressure at the working place L
pA
is equal to ........................................................93,1 dB (A)
– The maximum value of instantaneous weighted noise
pressure C at the working place L
pCPeak
is lower than ............................................................130 dB (C)
– The level of noise force produced by the machine
L
WA
is equal to ..................................................................................................................................104,3 dB (A)
Protection of workers against risks of exposure to noise during work
The
Cembre
drilling machine, model
SD-10E
, has been designed and constructed according
to
EEC directives 80/1107
and
86/188
relating to the protection of workers against risks arising
from exposure to chemical, physical and biological agents during work, with particular regard
to the risk of exposure to noise.
This has enabled a drilling machine to be manufactured for drilling wooden sleepers with re-
duced noise.
The exposure of the workers to noise produced from this equipment depends on the duration
of loading times, the intervals between exposures and the number of holes made within the
space of one working day.
It is also indicated, by way of example, that for a worker who uses the
SD-10E
drilling machine
properly for making holes of Ø 18 mm in a 15 cm thick wooden sleeper, producing up to
450
holes/day
, the daily personal exposure to the noise, due solely to the use of the machine is less
than
77,1 dB (A
). Under these conditions, producing
900 holes/day
the daily exposure to noise
would be
79,7 dB (A)
.
Since the noise levels obviously vary according to the many different operating conditions, the
Cembre
engineers are available togive further advice on the correct use of the drilling machine.
Risks due to vibration
(Directive 2006/42/EC, annexe 1, point 2.2.1.1)
Verifications made according to the UNI ENV 25349 and UNI EN 28662 – Part 1 Norms, confirm
that the
weighted root mean square acceleration value to which the arms are subjected when
using the drilling machine correctly is for each of the biodynamic reference axis respectively:
3,72 m/s
2
on the X axis
2,35 m/s
2
on the Y axis
1,84 m/s
2
on the Z axis
ENGLISH
