GOK LWG 2000 Notice De Montage Et De Service page 31

flow and the volume from the gap between the base of the containment facility and the probe must be
contained.
Monitoring area - requirements according to EN 13160-7 and EN 13160-4
• These must enable display of at least 10 L operating medium in the monitoring area or that penetrates
the area from outside.
• It must be possible to install the probe (sensor) at the lowest point of the monitoring area.
• The operating medium (leak) to be detected must be able to reach the lowest point of the monitoring
area.
• For a tank or pipeline, the system must be constructed so that there is no connection to the inner tank
or pipeline through the monitoring area below the maximum filling level.
• It must be possible to check the monitoring area for damage.
Leakage containment - requirements according to EN 13160-4
• These must enable display of at least 10 L operating medium in the leakage containment area or that
penetrates the area from outside.
• The number of system probes (sensors) must correspond to the intended number of recesses in the
leakage containment. If there is more than 1 recess: same number of LWG 2000s or use LWG 2005 for
up to 5 probes.
• The leakage containment must be leakproof and impervious to the operating medium, water or any
other substance and may not have an exit below the maximum filling level.
• If water penetration from outside cannot be prevented, technical measures must be taken to prevent
adverse effects on the function of the leak alarm.
• There must be no feed-throughs in the wall of the leakage containment that could affect its function.
• It must be possible to inspect the leakage containment for leaks.
• If the leakage containment is used as the primary containment facility, the walls of the containment
facility must completely surround the system and be able to contain the entire content, e.g. tank with
integrated containment facility.
Germany - Construction of containment facility
Steel and plastic containment facilities and coating materials and plastic sheets for containment facilities
must have building inspectorate approval for the intended operating medium, showing the requirements
for the processing, subsurface and construction (e.g. compliance with permitted crack widths).
The brickwork of containment facilities built on site must be interlocked. Walls must have a cement render
and the base must have a cement screed. If the storage volume exceeds 40 m³, the basin must be
reinforced concrete.
Containment facilities for oil pumps and consuming facilities must meet the following
requirements:
• Constructed from a metallic material or plastic that has been proven to be impervious to the operating
medium; metallic materials must be protected against corrosion.
• The containment facility must not have a drain, not even a drain that can be closed.
• The thickness of the walls must be dimensioned so that the containment facility does not warp and that
it retains its shape even when it is full. With steel, the minimum wall thickness is 1 mm, with plastic 3
mm.
• Spray losses from pumps installed and connections inside the containment facility must be contained
reliably; if necessary, suitable baffles must be installed.
• Containment facilities that are not manufactured in serial production must be tested for leaks and be
certified. For the test, they must be filled to capacity with water (for example) and be subjected to a
visual inspection.
• If the facility is installed outdoors, it must be ensured that no rainwater can enter or the facility must
have a roof: a roof that extends over the containment facility to 0.6 times its clearance height measured
from the edge.
• Containment facilities must be installed so that they are adequately protected against potential damage.
Containment facilities must be firmly installed
• The sealing function of containment facilities may also be fulfilled with a coating material.
part no. 15 073 57 c
Leak alarm type LWG 2000
15 / 16