EoW March 2011

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EuroWire – March 2011 54
technology news
The new rigid standing lines type “RFS
630-TZ” and “RFS 800-TZ” have been
designed by Pourtier to cope with
the increasing demand for overhead
conductors using trapezoidal wires.
This new generation of conductors is
used more and more to increase the
transmission capacity of existing lines,
thus avoiding costly and time consuming
projects for completely new lines.
These conductors are using central core
made of steel (ACSS/TW and ACSR/TW)
or made of composite material (ACCC™).
ACCC™ is the last innovative overhead
conductor made of composite centre and
soft aluminiumwire with trapezoidal shape.
In order to handle properly this particular
product, Pourtier rigid stranders gather
several special features: a fine tension
control, a straight and smooth passage
for the trapezoidal wires all along the line
to avoid any deformation of wires, the
exclusive use of rollers – instead of eyelets
– to avoid friction on the wires and large
sized cage bearings for straight passage
of wires.
The cages are equippedwith the innovative
“TZ” heads enabling guiding on the trap
wires without friction up to the cabling
block and guarantee the perfect position
of trap wires in the conductor layers.
Pourtier sas – France
Fax : +33 164 2661 10
Email:
Website:
Helping to meet the
increase in demand
The innovative “TZ” heads on Pourtier’s rigid strander ▲ ▲
IN THIS
ISSUE
Keeping the
worldwide
reputations intact
Braiding
technology
steps up a gear