7
M7 – 11.607
User manual
www.vertidrive.nl
TERMS AND DEFINITIONS
To create clarity some of the definitions and abbreviation used in this manual are explained.
Practicable
The ALARP principle applies when control measures
are put into effect. Risks must be as low as is
reasonably achievable in practice. That means that
the effectiveness of the control measures is weighed
up against the costs. Whether they are feasible and
realizable also plays a role in the assessment.
Unit of pressure; 1 bar = 100,000 Pa (pascals) = 100 kPa
(kilopascals).
CE marking shows that the product was
manufactured in accordance with European
space
An confined or partially open environment with a narrow entrance
or otherwise, not designed for people to be present for long
periods and where activities take place that pose a risk to safety,
A measure of the relative loudness of sounds. The decibel is a
unit derived from the bel, in the same way as a decimetre is
derived from the metre. When working with sound (noise
nuisance in particular) the letter ‘A’ is often appended: dB(A).
This means that the measurement method has been corrected for
the fact that the human ear is not equally sensitive to all
frequencies. A technique known as the ‘A filter’ has been used.
A stop button which ensures a safe situation when activated.
European standards such as e.g. NEN-EN. This is the European
norm that applies in the Netherlands and is managed by the NEN
(Nederlands instituut voor EenheidsNormen).
Collective name for a high-pressure water jetting system or flush
water system.
water jetting
system
A system, which may or may not be mobile, that consists of a
drive, pump, safety devices, HP hoses, a cleaning machine or a
high-pressure jetting equipment, which can jet water under a
high pressure of more than 250 bar.
Equipment that is required for working with a high-pressure
system (e.g. hoses, whip checks, nozzles, etc.)
This is the area where the cleaning is carried out and where
people can be hit e.g. by the HP water jet or HP components. If
there is no physical shielding, a distance of at least 6 meters
should be maintained around the location that the nozzle can
Unit of illuminance (light intensity).
Analysis
This is a brief risk assessment carried out in the working area
immediately before the start of HP activities by the employees
who are going to carry out the HP activities.
A head with one or more discharge openings through which the
water jet spray emerges and which is directly mounted to the
cleaning machine, high pressure jetting equipment or HP hose.
Equipment
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