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6. Assembly of the switchgear at site
W ARNING
For ENA version: do not access the area behind or
alongside the sw itchgear when it is energised or
being energised.
6.1 General
Correct installation is of paramount importance. The
instructions
given
by
thoroughly studied and followed.
Installation
must
be
personnel or by suitably qualified and skilled customer
personnel. All necessary personal protection devices
must be used.
W ARNING
Before removing the control panel cover, make
sure that the circuit -breaker is open and the
closing springs discharged.
Do not stand or w alk on the sw itchgear.
6.2 Foundations
The following three basic installation methods of
switchgear in the switchroom are distinguished:
Method A – installation on the base irons of "C"
profile shape.
As
standard,
it
is
switchgear on the base irons of "C" profile shape set
into the concrete floor of the switchroom. In this case,
the units are fastened using the special bolt blocks
(ABB delivers these on request).
Method B – installation on the levelled concrete
floor.
Installation directly on the levelled concrete flo or
makes much higher demands on the floor levelling,
which must, in this case, fulfil the same tolerances as
the base irons during method A installation.
Fastening is carried out by means of anchoring bolts
in the concrete floor.
Method C – installation on the raised false floor.
In this case, fastening the units is carried out by
welding outside panels to the steel floor frame in the
place where the frame is larger than the switchgear
bottom, i.e. on the outside lateral walls of the unit
row.
26
the
manufacturer
must
carried
out
either
recommended
to
install
Di men si o n ch art o f stru ctu ral d ata
Rat ed v olt age
Panel w idt h F T
( 1 )
Aisle wi dt h G
Swit chge ar roo m do or widt h
Swit chge ar roo m do or he ight
O penin g in ce ili ng if t ransport e d t hroug h roof :
W idt h
Lengt h
be
( 3 )
Ceil ing l oa d
by
ABB
( 1 )
P a y a t t e nt i o n t o a p p r o pr i a t e n a t i o na l s t a nd a r d s .
( 2 ) A p pl i e s t o l o w v o l t a ge c o m pa r t m e n t s o f s t a nd a r d he i g ht .
( 3 ) A p pr o x i m a t e n um be r s d e pe nd i n g o n t he t y pe o f pa ne l s .
Generally, the follow ing procedure for switchgear
anchoring can be recommended and, namely, for
any of the installation methods mentioned:
1.
The switchgear panels are bolted together in the
front and rear part to make one unit.
2.
Further structural data guidelines given provide a
rough calculation of the space required and the
plan for designing the room for a switchgear
project.
W hen the final building construction documents are
drawn up, the binding data supplied by ABB for a
particular case must always be taken into account!
6.2.1. Method of installation A – Installation of the
base irons
The general foundation drawing is given in following
the
figures according to the parameters of the units.
The "C" profile shaped base irons can be supplied
by
ABB
installation is usually carried out by personnel on
site and should, if possible, be performed under
supervision of an ABB specialist. The base irons
must be installed in the slab before finishing the
floor;
Rest the irons in t he specified position on the
concrete floor as shown in the relevant foundation
drawing and mark out the places for drilling the
holes. Then drill the holes for anchoring bolts, i.e.
for plugs 14 for fixing the base irons in the floor.
Then put the plugs i n the holes and attach the
base irons to the floor loosely with bolts 13,
without
levelling is possible.
Carefully level the base irons both longitudinall y
and transversally over the entire length and to the
correct
thickness
instrument.
Tolerances for laying the floor frame
Evenness tolerance: •+/- 1 mm over a measuring
length of 1m
Straightness tolerance: 1 mm per 1 m, but not more
than 3mm over the entire length of the frame.
( 2 )
together
with
the
final
tightening
so
height
by
putting
strips
under
them
and
[ k V]
12 / 17. 5
[ mm]
500
[ mm]
1000
[ mm]
700
[ mm]
2400
[ mm]
1000
[ mm]
1500
[ k g/ m2]
1200
switchgear.
Their
that
any
required
of
suitable
using
a
levelling
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