DELTA LIGHT QUALI PROTECT
This trademark is related to topic 1 and 2.
It covers the protective non-organic
pre-treatment applied to the most suitable
alloys to ensure a long term corrosion
resistance.
DELTA LIGHT SUPREME TEXTURE
This trademark is related to topic 3 to 5 and
it covers the final finish of the product in
terms of both weather and UV resistance.
We achieve this by applying high end poly-
ester powder coatings resulting in a perfect
finish and appearance.
Texture stands for the visual or tactile surface characteristics of a surface and
the disposition or manner of union of the particles of a body or substance.
Texture does not only relate to the powder coating itself, but even more the
perfect finish, the appearance and quality of the product.
BASIC MATERIALS (ALLOY)
For aluminium components we use
selected alloys with the lowest grade of
corrosion inducing contaminents like
cupper, iron etc, while maintaining the
required processability.
Non-visible stainless steel components,
mainly used for mounting surface contact
are made in 316 grade. Seen the impor-
tance of the pure grade of the base mate-
rial, Deltalight monitors the composition of
the supplied alloys by means of non-destruc-
tive x-ray photospectrometric analysis.
PRE-TREATMENT
Apart from the pure grade aluminum alloy,
a dedicated pre-treatment, is the next step
in the finish of exterior luminaires. The
pre-treatment applied by Delta Light is a
procedure that creates the perfect basis
for a high corrosion resistant product and
is achieved in 7 steps. The base process is
known and proven but the details are the
result of scientific research and process
optimization.
The base steps are
1. Alkaline degreasing
2. Clear water rinsing
3. Delta Light Quali Protect Etching
4. Clear water rinsing
5. Deionized water rinsing
6. Delta Light Quali Protect
Titanium Passivation
7. Hot air Drying
POWDER COATING
After the pre-treatment, the Delta Light
outdoor range is covered by an organic UV
resistant polyester thermosetting powder
coating, selected and made according to
Delta Light Supreme Texture standards.
This coating is typical solvent free which
makes painted products direct and 100%
recyclable. The paint is finally secured after
hardening at 200°C.
The used powder coatings are certified
according to European fire and fume regu-
lations and have specialist certificates.
.
HARDWARE
Apart from the painted parts that are used
for the assembly of our outdoor products
we assure that all other components such
as bolts, nuts, washers, screws, brackets,
fixation plates….are made from the best
stainless steel quality. This to assure the
entire quality of the outdoor luminaires
and to make sure any of the screws can be
untightened during the entire lifetime of
the product for eventual service. Stainless
steel components in contact with aluminum
are assembled with protection compound
to avoid electrochemical corrosion.
PROCESS CONTROL
All critical process steps in the pre-treat-
ment and application of the finishing
layer are monitored using SPC (statistical
process control). Delta Light Quali Protect
and Delta Light Supreme Texture outper-
form common known quality principles.
Stability and effectiveness is on top of the
SPC monitored by filiform corrosion tests
on production samples.
MANUFACTURED WITH PRECISION
The Delta Light collections are the result of
handcrafted care and industrial expertise.
Each luminaire is designed, engineered
and manufactured to guarantee high,-
maintained IP ratings and a long lifetime.
Weatherproof and non-ageing silicone
rubber is used extensively in the range. It
provides excellent sealing qualities in cor-
rosive and high temperature environments.
Depending on the product, its design and
application needs, Delta Light uses a 2
component potting substance, combined
with glass gluing by robot, to guaran-
tee optimum precision and IP67 rating.
Various ranges are further supported by
waterproof installation kits, including
watertight power supplies and waterproof
connector kits.
TESTING
In general, but on outdoor luminaires espe-
cially, there are high demands on durability
and quality of our product range, therefor
it is of main importance that these are thor-
oughly tested and simulated in the most
realistic conditions possible. Hitting the
luminaires with an impact hammer, soaking
them in water and dust or damaging them
to see the effect when subjected to highly
corrosive environments. We do not do this
just for fun, but to know exactly what the
effect on our products will be once they
are being installed in harsh environments.
In this way we know what our luminaires
can endure and label them with the proper
classifications.
IP TESTING
·
Luminaires for exterior use will be
affected by different environmental aspects,
for example heavy rainfall or dust or dirt
particles being blown around by the wind.
To prevent these influences from having
an impact on the functionality of the
luminaire, an IP rating is being mentioned
for each type of luminaire. At Delta Light,
all our luminaires are being tested accord-
ing to the specific standards in order to give
them the correct IP rating according to the
final application purpose.
IP TESTING (SOLID PARTICLES)
·
IP testing according to IEC 60598.
The standard specifies all parameters and
circumstances to deliver correct test results,
depending on the degree of protection
against solid particles. The first digit of the
IP rating tells the protection rate
against solid objects of the following
diameters:
·
>50mm: the luminaire can not be
entered with a hand or similar for
example
·
>12,5mm: the luminaire can not be
entered with a finger or similar for
example
·
>2,5mm: the luminaire can not be
entered with tools or similar for
example
·
>1mm: the luminaire can not be ente
red with a screw or thin wires for
example
IP TESTING (FLUID)
·
IP testing according to IEC 60598.
The standard specifies all parameters and
circumstances to deliver correct test results,
as there are multiple degrees of protection
depending of the final purpose of the lumi-
naire. Simulations can be done for rain,
over spray water to submersion, according
to the specific type of installation.
·
Rain (IP X4)
·
Spray water (IP X5)
·
Splash water (IP X6)
·
Submersion (IP X7)
IK TESTING
Next to IP rating, a luminaire can also
be influenced by certain large or smaller
impacts, for example collision with people,
bicycles or cars. Different types of collision
can be tested according to IEC 62262,
this standard specifies all parameters and
circumstances to deliver correct test results,
depending on the degree of protection
against external mechanical impacts. A
hammer is being dropped into the lumi-
naire to create impact. The weight of the
pendulum and the height from where it is
being dropped can vary to measure different
levels of impact. The higher the digit of the
IK XX value, the higher the impact it can
absorb without preventing the luminaire
from losing its protective function.
FILIFORM CORROSION TESTING
Luminaires for exterior use are more
exposed to harsh weather conditions and
need to be resistant to corrosion. To test
coated luminaires on how they react to
exterior conditions we test them accord-
ing to the filiform corrosion test (ref. ISO
9227): the product is being scratched
and undergoes a corrosive attack by
112
OUTDOOR
DELTA LIGHT
