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2.4.
Noise power level
WARNING
Risk of hearing damage
Regulations state that hearing protection must be worn above a noise level of 85 dB (A),
Wear personal hearing protection
The details define volume of noise level, related to the operator workspace and the noise power level of the
masonry saw.
Without load at maximum speed
The emission noise pressure at the operator's place L
pA
68,5 dB (A)
The measured noise level L
wA
79,8 dB (A)
Peak sound pressure level at the workplace
80,7 dB (A)
The measurements were carried out with no load and at full speed with a cutting tool with a diameter of
350 mm with segmented edge.
The sound produced by the engine was measured as specified by the standards DIN EN 12418 and EN 3744.
2.5.
Hand arm vibration
WARNING
Hazard due to vibration
Vibrations can lead to bone or joint injuries and to circulation dysfunctions.
When working with the machine take regular breaks.
The level of vibration transmitted to the hand-arm system has been measured according to standard UNI EN
ISO 5349-1 while cutting Poroton bricks. (L 280 x W 140 x H 100 mm) using a cutting tool with a diameter of
350 mm, sectors type.
Total vibration value:
Assessed vibration value:
a = 1,15 m/s
2
(measurement uncertainty0,28 m/s
2
)
In practice, these values are influenced by the following conditions:
•
Quality of the saw blade
•
Number of teeth on blade
•
Weight of the operator
•
Feed speed
•
Condition of the machine
•
Stone properties
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