PRYSMIAN GROUP | SECTORFLEX®-TYPE CABLES 9 BENEFITS SMALLER DIAMETER Regardless of the cable configuration and the conductors’ cross-section, the resulting average diameter reduction for Sectorflex®-type cables vs round-shaped conductors is by 10%. LIGHTER WEIGHT The Sectorflex®-type cables outer diameter reduction also implies an average reduction in weight. Regardless of the cable configuration and the conductors’ cross-section, the resulting averageweight reduction for Sectorflex®-type cables vs round-shaped conductor-type is by more than 10%. IMPROVED BENDING RADIUS, EASIER HANDLING AND INSTALLATION The difficulties resulting fromlimited space available for cable installation inoffshore environments are amatter of fact and a huge challenge in the industry. Sectorflex®-type cables reduceddiameter andweight prove key to improve installation efficiency andquality. Cables take up less space in the trays, they pass through tubes andpipes more easily, withstand a narrower bending radius (down to4x diameter) and require lower pulling strength. In addition, the larger surrounding space resulting fromthe installationof cableswith a reducedouter diameter enables amore effective dissipationof theheat generatedby the losses in the cable, thus improving its operating conditions, too. Sectorflex®-type cables alsoprovide easier handlingduring installation comparedwith the conventional circular conductor flexible cables. Comparison testswere carriedout between Sectorflex®-type cables and cableswith round-shaped conductors having identical cross-sections (4x120mm2) andusing identical materialswith identical insulation andouter sheath,measured the force required tobend the cables andassessed the cables’ spring-back effect when the forcewas released. Data obtained, showa substantial improvement in the Sectorflex®-type cablehandling, especially in terms of forceneeded tobend it, reducedby 39%. Similarly, the spring-back effect shows a reductionbymore than8%. Both factors contribute to a highly considerable improvement in the conditions under which the cable is used, as far as installation, laying and working life are concerned. CABLEWITHROUND-SHAPE CONDUCTORS SECTORFLEX®-TYPE CABLE CABLE TYPE Force (kg) Springback effect (%) Sectorflex®-type 4x120mm2 22,8 83% Round-shaped conductor 4x120mm2 37,6 76% -10% N A [650mm] T=21°C F [141 mm]
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