The particularly slender shape,
the assembling simplicity and quickness
as well as the cheaper prices compared
with the lattice works, made it possible
that the monotubular steel column found
a wide application in the field of energy
transmission.
The experience gained in designing and
manufacturing such supports, proposes
ourselves as qualified suppliers among the
bigger Italian companies in this field.
MT-LT ::..
T1 = Test draught applied at
a distance of 10 cm from top
column
Note. Test draught or theoretic
collapse draught is the
value that generates a diagram
of bending moments
which approximate in favour
of security (coefficient 2 - CEI
11-4), the diagram of the
bending moment generated
from the comprehensive
action due to the conductors
and to the wind pressure distributed
along the shaft.
Enel standardization Ds 3010
Steel sheet welded columns with octagonal cross section, for
middle and low tensions overhead lines, made of one section by
cold shaped steel sheet grade according to EN 10025 and subsequent
external longitudinal welding carried out by approved
automatic process.
Dimensional tolerances according to Enel DS3010.
These columns are usually supplied completed with works as
per scheme according to the type of column.
Each column is identified by a mark reporting manufacturer
name, code of the column and year of manufacture.
Columns are supplied hot dip galvanised, by dipping into bath of
melted zinc.
For columns type L; A; B, usually is provided an external bituminous
coat which consist in the application of a sheath of an
application on the galvanised column, of a sheath made of bitumen
and fibre glass resin. For other type of column usually this
coat is not provided but it can be made upon request.
MT-LT
T1 = Test draught applied
at a distance of 10 cm
from top column
Note. Test draught or
theoretic collapse
draught is the value that
generates a diagram of
bending moments which
approximate in favour of
security (coefficient 2 -
CEI 11-4), the diagram of
the bending moment generated
from the comprehensive
action due to the
conductors and to the
wind pressure distributed
along the shaft.
Enel standardization Ds 3012
Steel sheet welded columns with polygonal cross section, for
middle and low tensions overhead lines, obtained by cold shaped
steel sheet grade S355JO according to EN 10025 and subsequent
external longitudinal welding carried out by approved automatic
process.
Composed of 2 or 3 sections to be joined at site by forced overlapping.
Dimensional tolerances according to Enel DS3012.
These columns are usually supplied completed with works as per
scheme according to the type of column.
Each column is identified by a mark reporting manufacturer name,
code of the column and year of manufacture.
Columns are supplied hot dip galvanised, by dipping into bath of
melted zinc.
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