This is why Hella worklights are more than worth
the money
11
Hella knows that in practical use,
worklights are exposed to harsh
conditions. Therefore, during development
and also during manufacture (!), all types
of worklight are specifi cally tested to meet
the high Hella quality demands.
To start with, there are two tests to
determine and check compliance with the
IP protective rating.
The splash-water test reveals how a
worklight withstands rain, splash water, silt
and the high-pressure cleaner. To do so,
the worklight is constantly sprayed
with water as if from a high-pressure
cleaner, in a closed chamber.
The purpose of the dust-protection
test is to test to what extent a worklight is
protected from the penetration of foreign
solid bodies, including dust. To do this,
the test sample is exposed for a certain
time, in a chamber, to a fl ow consisting of
an air/dust mixture.
There are then three further stages to this
tortuous testing.
Two-part heat test: Part 1 is
the 24-hour test. Over this period, the
worklight remains switched on constantly.
In the second part, the worklight is
subsequently exposed to a temperature
of 50°C for a period of one hour. A value
which can quickly be reached in summer
use.
Shake test and vibration test: Here,
the behaviour of the worklight during
driving is simulated. Worklights that pass
this test always illuminate correctly.
Fogging test: In the fogging test, Hella
tests how the worklight handles moisture
penetration. If the fogging disappears in a
specifi ed short unit of time, the worklight
is operating correctly.
GGVSEB and IP protective
categories:
GGVSEB means hazardous-goods
directive for roads. Worklights so marked
are approved for mounting to
transportation equipment which meets the
regulations of the GGVSEB/ADR
B Rn 10251 and Rn 11251 for
electrical alignment.
IP protective categories provide known
standards when purchasing. How well is a
product protected from the environmental
infl uences Worklights are exposed to
e.g. dust and water? The IP protective
category states how resistant the
product is. The classes are determined in
accordance with DIN 40 050 Part 9.
In the case of Hella worklights, these
protective ratings are used:
Protective category IP 5K4K
Dust may only penetrate to such an extent
that function and safety are not impaired.
Water that sprays against the housing
from every direction under increased
pressure must not have any damaging
e ect; water pressure approx. 4 bar.
Protective category IP 5K9K
Dust may only penetrate to such an extent
that function and safety are not impaired.
Water that is directed against the housing
during high-pressure/steam-jet cleaning
must not have any damaging e ect; water
pressure approx. 80 bar.
Protective category IP 6K4K
Dust must not penetrate. Water that
sprays against the housing from every
direction under increased pressure must
not have any damaging e ect; water
pressure approx. 4 bar.
Protective category IP 6K7
Dust must not penetrate. Even in the
event of temporary submersion, no water
may penetrate.
Protective category IP 6K9K
Dust must not penetrate. Water that is
directed against the housing during high-
pressure/steam-jet cleaning must not
have any damaging e ect; water pressure
approx. 80 bar.
