Tables / Explanations AWG-Sizes - Prysmian Group

Travel speedsFlexible electric cables for cranes and materialhandling equipment are intended for use on mobileequipment and are designed to cope with thetechnical requirements of the application.In order to collect, pay out and move flexible electriccables, there are different cable guidance systems,such as reels, festoons, tenders, power tracks,baskets, sheave guided cable storage systems andlifts as well as sheaves and multi-roller guides.The cranes and material handling equipment, andconsequently also the cable guidance systems, areoperated at different travel speeds and are thereforesubjected to stress which can vary from low to veryhigh. During operation of the mobile equipment, theflexible electric cables are subjected to stress suchas tension, transverse pressure, torsion and bending.Thus, the travel speed and the acceleration are tobe considered as indirect criteria for the stressesapplied to the flexible electric cables. The maximumpermissible travel speeds for the individual flexibleelectric cables are summarized in table 4/15.In the case of gantry crane drives, the travel speedof the actual mobile equipment is implied. Usually,cylindrical or mono-spiral reels are employed.The trolley drive carries out horizontal movement ofthe hoisting gear and the driver‘s cabin. Festoons,tenders and power tracks or sheave guided cablestorage systems are used here as cable guidancesystems.In the case of the hoisting gear, the speed of theload-lifting device, such as the spreader or grab, isimplied.Normally, either reels located in the trolley orbaskets on the load-lifting device are used for thecable guidance system.If the travel-speed limits are exceeded, a reductionin service life cannot be excluded. The cable manufacturershould be consulted.Maximum travel speed of flexible electric cables for cranes and material handling equipmentFlexible cablesGantry crane drive(reeling)m/minCORDAFLEX(SM) /-RS NSHTÖU No restriction. Forspeeds over 180 m/min,consult the cable manufacturerTrolley drive (festoonsand tenders)m/min240 160PLANOFLEX NGFLGÖU No application 180For speeds over 180m/min, consult the cablemanufacturerCORDAFLEX(K) NSHTÖU 60 180For speeds over 180m/min, consult the cablemanufacturerSPREADERFLEX YSLTÖ No application No application 160Hoist drive (verticalrun reeling orbasket)m/minNo applicationNo applicationOPTOFLEX 120No random woundreel240 No applicationPROTOLON(FL) / FO (N)TSFLCGEWÖU 120 No application No applicationPROTOLON(SM-R) / FO NTSKCGEWÖU No restriction. Forspeeds over 240 m/min,consult the cable manufacturer120 No applicationTable 4/15