Electrak: underfloor to workstation system guide - Legrand

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Electrak ® power track systemsinstallation1 Fix track feed to surfaceTrack feedDirection oftrack runMake chalk line toalign track lengths2 Connect track length to track feedRemovedust coverIntegral trackconnectorTrack lengthPush downTrack feedMake sure trackconnector clips arefully pushed home onboth sides of trackPush downPower track andintegral trackconnector3 Connect additional track lengthsRemove dust coverbefore connectingtrack connectorFirst trackfixing bracketTrack outletsreusable plasticdust covers4 Secure track lengths to surfacePull out track fixingbracket lugs and screwfix on both sidesAll integral track fixing bracketsmust be fixed to surface at 1·2 mfixing centres from first bracketon each track length20
Electrak ® power track systemstechnical datan StandardsApproved to ASTA Standard 138BS EN 60439-2 : 2000, BS EN 61534-22 : 2009 and IEC 61534-22 : 2009Manufactured within an approved ISO 9001 : 2008 facilityAssessed Quality Assurance Certificate No. 2029Electrak fully complies with the requirements of BS 7671 : 2008 + A1 : 2011(IET Wiring Regulations)n Earth fault loop impedanceBS 7671 : 2008 + A1 : 2011 IET Wiring Regulations require accuratedetermination of the total earth loop impedance, which must besufficiently low to allow the protective device to operate within thespecified time, which for socket outlets is 0·4 seconds. The valuesrelevant to Electrak for calculating the earth fault loop impedance areshown in the electrical test data table, see oppositen DurabilityElectrak systems are superbly designed and extremely robust. Theycan be expected to stand up to all normal site conditions. Electrak hasbeen short circuit strength tested by ASTAn Installations with high protective conductor currentsAll unfused tap-offs comply with Regulation 543·7 without the need foradditional earth conductors. Regulation 543·7·1·103 (ii) states “a singlecopper protective conductor having a cross-sectional area of not lessthan 4 mm 2 , complying with the requirements of Regulations 543·2 and543·3, the protective conductor being enclosed to provide additionalprotection against mechanical damage, for example, within a flexibleconduit”For installations with high protective conductor currents requiringfused tap-offs, a 543·7 compliant tap-off must be used. Normallyfused tap-offs incorporate 1·5 mm 2 conductors, however in the fused543·7 tap-offs, the 1·5 mm 2 earth conductor is replaced with a 4 mm 2conductor and therefore complies with Section 543·7·1·103 (ii)n 32 A tap-off unitThe 3 m 32 A tap-off unit comprises an unfused tap-off with either2·6 m of 16 mm / 20 mm diameter flexible metal conduit or VO ratednylon conduit both with integral 4 mm 2 LSOH conductorsThese units are designed to comply with regulation 434·2·1 of theIET Wiring Regulations by virtue of the following :• maximum length of cable is 3 m• it is factory assembled and fully tested item with cable installed in highquality flexible conduitFault condition protection for the tap-off assembly and the floor boxsocket outlets is delivered by the circuit protection deviceDisconnection time for socket outlets is 0·4 seconds (Regulation411·3·2·2). The Electrak system meets this requirementTap-off units in excess of 3 m should only be used if they contain a fuseor the power track is protected by a protective device not exceeding 32 AVolt drops (live and neutral)Busbars3·0 mV/A/mCable connector0·4 mV/ATrack connector0·4 mV/A32 A tap-off 0·4 mV/A+ 4 mm 2 cable 11 mV/A/mFlexible corner assembly1·5 mV/A+ 10 mm 2 cable 4·0 mV/A/mMechanical dataNumber of conductors 3 to 6Busbar conductor cross sectional area 13 mm 2Housing cross sectional area (copper equivalent) 13 mm 2Cable terminal capacity 16 mm 2Tap-off cable 32 A 4 mm 2Tap-off cable 13 A fused 1·5 mm 2Tap-off conduit, up to 4 conductors16 mmØTap-off conduit, 5 and 6 conductors20 mmØFlexible corner cable (tri-rated, high temperature) 10 mm 2Flexible corner conduit25 mmØIP rating 40Earth fault loop impedancePhase busbar1·5 mΩ/mEarth busbar1·5 mΩ/mEarth housing1·1 mΩ/mEarth busbar and housing0·8 mΩ/mCable connector0·4 mΩTrack connector0·6 mΩ32 A tap-off 0·6 mΩ+ 4 mm 2 cable 11 mΩ/mFlexible corner assembly1·5 mΩ+ 10 mm 2 cable 4·0 mΩ/mRated conditional short-circuit current16 KAAmbient temperature25˚CElectrical test dataRated current63 ARated voltage 230/400 V~Frequency50/60 HzConductor resistance - live and neutral 3·0 mΩ/mConductor impedance1·5 mΩ/mMaterial specificationsPower track housingGalvanised steel, natural finishBusbarsHigh conductivity copperBusbar insulatorPTFETrack connector/socket outlet/track feed connector Flame retardant polycarbonateSocket outlet entry shutterAcetalTap-off housingFlame retardant polycarbonateTrack connector bladesCopperTap-off bladesCopperTap-off/flexible corner conduit, metalElectro-galvanised steelTap-off conduit, plasticVO ratedTap-off cable LSOH to BS 7211Flexible interlink cable Tri-rated to BS 6231Track feed box/flexible interlink boxesGalvanised steelTrack feed connector terminals/earth block BrassTrack fixing bracketsGalvanised steel13 A tap-off, fuse To BS 1362, ASTA approved21
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Electrak: underfloor to workstation system guide - Legrand

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