POURTIER New rigid stranding lines for trapezoidal wires
PUBLISHED: 25 Jan 11
Top: Pourtier Rigid Strander for Trapezoidal wires; Bottom: Trapezoidal wires
The new Rigid Standing lines type "RFS 630-TZ" and "RFS 800-TZ" have been designed by POURTIER s.a.s, a member of the Gauder Group, to cope with the increasing demand for overhead conductors using trapezoidal wires. This new generation of conductors is more and more used 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 aluminium wire 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 largely sized cage bearings for straight passage of wires.
The cages are equipped with the innovative "TZ" heads enabling guiding on the trap wires without friction up to the cabling block and guaranteeing the perfect position of trap wires in the conductor layers
POURTIER has already supplied numerous lines to major cable makers - including several repeat orders - throughout the world, to produce ACSS / TW, ACSR / TW and ACCC™ overhead conductors.
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