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18、s your acceptance of the terms and conditions of this Legal Notice.Revision HistoryC68.5-13, Shielded and concentric neutral power cable for distributionutilitiesUpdate No. 1 JANUARY 2015 Revision symbol (inmargin)Clauses 2, 4.5, 8.2.2, 10.2.1.1, 11.3.1, 11.4.9.1, 11.4.9.2,11.4.9.3, 11.7.2, 12.3.2,
19、12.3.3, 12.3.4.1, 12.4.5, 12.4.6, and12.4.13Annexes I and JTables 2, 19, 27, 34, H.1, and H.2Errata MAY 2014 Revision symbol (inmargin)Technical CommitteeNational Standard of Canada MAY 2014Outside front cover, National Standard of Canada text, title page, and Preface.Standards Update ServiceCAN/CSA
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37、ithStandards Council of Canada270 Albert Street, Suite 200Ottawa, Ontario, K1P 6N7CanadaCette Norme Nationale du Canada est disponible en versions franaise et anglaise.Although the intended primary application of this Standard is stated in its Scope, it is important to note that it remains the respo
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40、-747-4044.TMA trade-mar k of the Canadian S tandards Association,operating as “CSA Group”Prepared byApproved byShielded and concentric neutralpower cable for distribution utilitiesCAN/CSA-C68.5-13(approved May 2014)National Standard of CanadaCAN/CSA-C68.5-13 Shielded and concentric neutral power cab
41、le for distribution utilitiesJanuary 2013 2013 CSA Group1ContentsTechnical Committee on Insulated Power Cable 6Subcommittee on Shielded and Concentric Neutral Power Cables Rated 5 - 46 KV 8Preface 101 Scope 122 Reference publications 123 Definitions and abbreviations 163.1 Definitions 163.2 Abbrevia
42、tions 184 Conductors 194.1 General 194.2 Physical and electrical properties 194.2.1 General 194.2.2 Copper conductors 194.2.3 Aluminum conductors 194.3 Optional water-blocking components for stranded conductors 204.4 Conductor size units 204.5 Conductor dc resistance per unit length 204.6 Conductor
43、diameter 205 Conductor shield (stress control layer) 205.1 Material 205.2 Extruded shield thickness 215.2.1 General 215.2.2 Reduced extruded shield thickness 215.3 Protrusions and convolutions 215.4 Voids 215.5 Physical requirements 215.6 Electrical requirements 215.6.1 Extruded semiconducting mater
44、ial 215.6.2 Semiconducting tape 215.7 Crosslinked (thermoset) requirements 226 Insulation 226.1 Material 226.2 Insulation thickness 226.2.1 General 226.2.2 Selection of insulation thickness 226.2.3 Insulation eccentricity 236.2.4 Insulation diameter 236.3 Physical and aging requirements 236.4 Electr
45、ical requirements 23CAN/CSA-C68.5-13 Shielded and concentric neutral power cable for distribution utilitiesJanuary 2013 2013 CSA Group26.4.1 Partial-discharge extinction level 236.4.2 Voltage tests 236.4.3 Dielectric constant and dissipation factor 236.5 Voids, ambers, gels, agglomerates, and contam
46、inants 236.5.1 TRXLPE insulation 236.5.2 EPR insulation 246.6 Shrinkback TRXLPE 247 Extruded insulation shield 247.1 Material 247.2 Thickness and indent requirements 247.3 Protrusions 247.4 Removability 247.5 Voids 257.6 Physical requirements 257.7 Electrical requirements 257.8 Crosslinked (thermose
47、t) requirements 257.9 Semiconducting tape 258 Concentric neutral and other metallic shielding 258.1 General 258.2 Concentric neutral conductor 268.2.1 Material 268.2.2 Cross-sectional area 268.2.3 Lay length 268.2.4 Concentric wires 268.2.5 Flat straps 278.3 Other metallic shields 278.3.1 Helically
48、applied tape(s) 278.3.2 Combination of tape and wire 278.3.3 Longitudinally applied corrugated tape 278.3.4 Lead sheath 278.4 Optional water-blocking components for metallic shield/concentric neutral 289 Jacket 289.1 Material 289.1.1 General 289.1.2 Linear low-density polyethylene, black (LLDPE) 289
49、.1.3 Polyvinyl chloride, black (PVC) 289.1.4 Polypropylene, black (PP) 289.1.5 High-density polyethylene, black (HDPE) 299.1.6 Crosslinked polyethylene, black (XLPE) 299.2 Jacket application and thickness 299.2.1 Extruded-to-fill jacket 299.2.2 Overlaying jacket 299.2.3 Jacket thickness 299.2.4 Jackets with identification stripes (optional) 2910 Cable assembly and identification 30CAN/CSA-C68.5-13 Shielded and concentric neutral power cable for distribution utilitiesJanuary 2013 2013 CSA Group310.1 Multiplex cable assemblies 3010.2 Cable identification 3
