英语翻译Cabletraysandaccessories(asapplicable)cabletraysupportshallbefabricatedfromstandardmsangles/channels.Dependinguponsiteconditions,itmaybegalvanisedorpainted.Incaseofpaintingtwocoatsofred-oxideprimerandtwocoa
英语翻译
Cabletraysandaccessories(asapplicable)
cabletraysupportshallbefabricatedfromstandardmsangles/channels.Dependinguponsiteconditions,itmaybe
galvanisedorpainted.Incaseofpaintingtwocoatsofred-oxideprimerandtwocoatsofanticorrosionandabrasion
resistingsyntheticenamelpaintshouldbeapplied.Erectionofcabletraysupportsgenerallybedonewithboltsandnutsand
avoidasmuchaspossibleweldingatsite.
sheetsteelcoverofminimum2mm.thickshallbeprovidedforwall/columnmountedverticalracewaysandwhereverspecificallyrequired.Thewidthofthecovershallbesameasthatofthetray.Inchemicallypollutedarea,addtionalprotectionasrequiredshallbeprovided.
Ductbank
DuctbankshallconsistofreinforcedcementconcreteencasePVCpipesofsuitablediameter,preferably150/200mm.Atallbendinglocationsandforpullingofcablesadequatemumbersofmanholesandhandholesbeprovidedatsuitableintervals,notmorethan30mapart.