IG-032-EN version 05; 18/06/2019
25
General instructions
pfu basic range: Prefabricated concrete
enclosure, ground-level walk-in type
Installation
Ground at risk of flooding
In these cases, the building's bottom plate should be
raised to 100 mm above the predicted ood level, and the
foundations levelled as in the Normal Conditions section.
Dimensions in millimetres.
Fill in so level X is at least 400 mm and the slope angle is 45°.
A 1 m wide pavement around the building is recommended.
Since these cases are found near rivers, the land ll must
be rmly retained (with concrete, rock ll, etc.) to provide
stability to the prefabricated building.
1
Level 0
2
Envisaged ooding level
3
Fill
Figure 8.7. Levelling speci cations on ground with risk of ooding
8.4.4. Sealing cable accesses
The pfu has pre-punched holes for the medium-voltage,
low-voltage and external earthing cable accesses.
According to the needs of each case, use a hammer to make
the necessary holes in the most convenient location.
Once the connections have been made, the feedthrough
holes should be sealed using a polyurethane sealant in
order to guarantee the appropriate water tightness.
For a good nish, it is recommended to ll with sand up to
level +360 mm and cover this ller with a 1000 mm wide
pavement, between 50 and 100 mm below the access door.
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