IG-032-EN version 05; 18/06/2019
9
General instructions
pfu basic range: Prefabricated concrete
enclosure, ground-level walk-in type
Handling
6. Handling
6.1. Handling the body
The pfu has DEHA-type round-head anchors to ensure
correct handling using lifting beams, slings and suitable
hooks for optimally balanced lifting. The roof has threaded
inserts.
The following tools and equipment are required to handle
the body:
1
Cables
2
35 T Lifting beam
2.1
Numbered holes for transverse balancing
3
Lower slings/chains with elongation ring and DEHA KA-type
hooks.
Sling length:
• pfu-3 and pfu-4: 5100 mm (minimum 4000 mm)
• pfu-5 and pfu-7: 5100 mm
DEHA KA-type hooks load class:
• pfu-3, pfu-4 and pfu-5: 7.5
• pfu-7: 10
Figure 6.1.
Tools and equipment required
Vertical and horizontal balance must be ensured when
handling the pfu. Standard slings with extensions
should be used for the pfu and pfs buildings. For any
doubts, please ask Ormazabal.
Transformer weight limitation for handling the
pfu-7: The maximum weight of the transformers is
limited to the values shown in the fi gure, according to
the internal layout of the switchgear:
a
Confi guration of two transformers at the ends of
the building
b
Confi guration of two contiguous transformers at
one end (only one installed in position closest to
the centre of the building)*
c
Confi guration of two contiguous transformers at
one end (only one installed in position furthest
away from the centre of the building)*
d
Confi guration of one transformer at one end of
the building*
e
Confi guration of two contiguous transformers at
one end of the building*
* Also includes the confi guration with the transformers on
the left side
Figure 6.2.
Maximum weight of transformers (in kg),
according to the arrangement of the equipment,
for handling
pfu-7
For safety reasons, handling the pfu-7 with transformers
heavier than indicated is strictly forbidden.
