techinical specification for 33/11kv onan power ... - Cescoorissa.com
techinical specification for 33/11kv onan power ... - Cescoorissa.com
techinical specification for 33/11kv onan power ... - Cescoorissa.com
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per<strong>for</strong>mance of <strong>power</strong> trans<strong>for</strong>mers at site shall <strong>com</strong>ply with all currently applicable statutoryregulations and safety codes in the locality where the equipment will be installed. The equipmentshall also con<strong>for</strong>m to the latest applicable standards and codes of practice. Nothing in this<strong>specification</strong> shall be construed to relieve the contractor of this responsibility.5.2 The equipment and materials covered by this <strong>specification</strong> shall con<strong>for</strong>m to the latest applicableprovision of the following standards.IS:5 : Colour <strong>for</strong> ready mixed paintsIS:325 : Three Phase Induction MotorsIS:<strong>33</strong>5 : New insulating oil <strong>for</strong> trans<strong>for</strong>mers, switch gearsIS:1271 : Classification of insulating materials <strong>for</strong> electrical machineryand apparatus in relation to their stability in servicesIS:2026(Part I to IV) : Power Trans<strong>for</strong>merIS:2071 : Method of high voltage testingIS:2099 : High voltage porcelain bushingsIS:2147 : Degree of protectionIS:2705 : Current Trans<strong>for</strong>mersIS:3202 : Code of practice <strong>for</strong> climate proofing of electrical equipmentIS:<strong>33</strong>47 : Dimensions <strong>for</strong> porcelain Trans<strong>for</strong>mer BushingsIS:3637 : Gas operated relaysIS:3639 : Fittings and accessories <strong>for</strong> <strong>power</strong> Trans<strong>for</strong>mersIS:5561 : Electric Power ConnectorsIS:6600/BS:CP’10:0 : Guide <strong>for</strong> loading of oil immersed Trans<strong>for</strong>mersIS:10028 : Code of practice <strong>for</strong> selection, installation and maintenanceof trans<strong>for</strong>mers, Part I. II and IIIC.B.I.P. Publication : Manual on Trans<strong>for</strong>mersIf the standard is not quoted <strong>for</strong> any item, it shall be presumed that the latest version of IndianStandard shall be applicable to that item.The equipment <strong>com</strong>plying other internationally accepted standards, may also be considered ifthey ensure per<strong>for</strong>mance superior to the Indian Standards.5.3 DRAWINGSa) The contractor shall furnish, within fifteen days after issuing of Letter of Award. Six copieseach of the following drawings/documents incorporating the trans<strong>for</strong>mer rating <strong>for</strong> approval.i) Detailed overall general arrangement drawing showing front and side elevations and plan ofthe trans<strong>for</strong>mer and all accessories including radiators and external features with details ofdimensions, spacing of wheels in either direction of motion, net weights and shippingweights, crane lift <strong>for</strong> un-tanking, size of lugs and eyes, bushing lifting dimensions, clearancesbetween HV and L.V terminals and ground, quantity of insulating oil etc.ii) Assembly drawings of core and winging and weights of main <strong>com</strong>ponents / partsiii) Foundation plan showing loading on each wheel land jacking points with respect to centreline of trans<strong>for</strong>mer.39
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