Download PDF Catalogue - OMS lighting

WOOdwORKING
AND PROCESSING
When solving the illumination
of halls in the woodworking
and processing industry
especially the question of
security and safety comes to
the foreground. The appropriately
designed lighting
system creates optimal conditions
for the visual well-being
of the employees and at the
same time it reduces the risk
of the rise of injuries.
The line of business aimed at
woodworking and processing
includes a lot of various
activities which are frequently
concentrated in one hall. The
task of the lighting designer is
to create such light conditions
which will be suitable for all
types of activities carried out. In
general it means that the main
lighting system designed for this
type of space is to be strengthened
by additional luminaires or
lighting fixtures with adequate
protection level.
The European standard
EN 12464-1 states the value
of minimal illuminance 500 lux
for the production spaces in
the woodworking and processing
industry. For the activities as
varnishing, grinding and
wood inlay work it needs
the minimal illuminance level
750 lux and for the inspection
1,000 lux. The variety of the
realised activities and frequent
transfers in the premises place
increase demands on the uniform
luminance distribution.
The required illuminance levels
and its corresponding uniformity
can be achieved by using
the ceiling or linear luminaires
with the direct component of
radiation and a wide luminous
intensity curve. In the halls with
height 6 metres and more it is
suitable to use the suspended
luminaires with a wide luminous
intensity curve with a metalhalide
discharge lamp. At the
workplaces where, due to the
realised operations an increased
concentration of dust occurs, it
is necessary to install the luminaires
with IP 54 or IP 65.
If the production is concentrated
to a hall with access of
daylight it is suitable to place
the working desks rectangular
to the area with windows for
ensuring good visual conditions.
For activities that require additional
lighting – e.g. sawing,
milling, drilling – it is good to
place the luminaire in such
a way that the luminous flux
directs moderately from above,
from the left hand side in the
direction of the employee’s
view. This lighting minimises the
risk of arising sharp shadows
and at the same time it ensures
good visibility of the sharp part
of the machine.
When solving the lighting
system in the woodworking and
processing industry it is necessary
to avoid the stroboscopic
effect when the artificial lighting
is on. The stroboscopic effect
represents a serious danger
especially when we work with
rotational tools because when
the frequency and rotational
speed are the same there can
develop an impression that the
tool is off and cause serious
injuries to the user. The stroboscopic
effect can be avoided by
installing the electronic control
gears.
When solving the lighting system in
the woodworking and processing
industry it is necessary to avoid
the stroboscopic effect when
the artificial lighting is on. The
stroboscopic effect represents a
serious danger especially when the
employee works with rotational
tools.
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