procurement of c and i spares for 6.6 kv auxiliary imd-iv for unit no 10 and 11, stps sarni. , c&i spares for 6.6 kv auxiliary , extension cable for piezo velocity transducer vibration ptf cable with ss flexible conduit at one end two pin special connector for sensor fixed toit.at other end three wire terminals end with alpha numeric numbering on each cable. (i) cable :three coreptf copper coated tin 0.5 sq.mm with flexible ss conduit.(10mtrs.) (ii) type of connector : two pin ms 3106f-10sl-4s 1030.the both end of flexible conduct is isolated by sleeves. make : forbes marshall, emerson, hansfold or equivalent , temperature gauge for 6.6 kv auxilliary (150mm) instrument : dial type thermometer case & bezel : die cast aluminum weather proof stovd enamel black finished case & bezel to ensure ip -55 as pr is -2147 suitable for use outdoor application without any additional protection. dial & scale : dial will be made of suitable material black figure on white background with anti-corrosive finished scale and marking over an arc of 270, degree confirming to bs-5235 non -reflective and marking as per is-3602., mounting : surface with bottom entry, dial size : 150 mmm (circular), range : (0 to 120 degree c), accuracy : +/- 2% f.s.d, bulb & stem dia : 12+0.5/-omm (insulated), bulb & stem length : 65mm, material of bulb & stem : ss 304, capillary : 3 meters long steel capillary covered with heavy duty insulted red, pvc tube., attachment :2 nos . long steel capillary covered with heavy duty installed red, pvc tube., contact rating : 5 amp at 240v ac or 0.5 amp at 220v dc for 1.5 kv for 1 minute at 2.0kv 50hz., cable gland : :3/4 installed cable glands. make:- bhel, kdm, osmadial, nsrtc or equivalent , temperature gauge for 6.6 kv auxilliary (100mm) instrument : dial type thermometer. case & bezel : die cast aluminum weather proof stovd enamel black finished case &bezal to ensure ip -55 as pr is -2147 suitable for use outdoor application without any additional protection. dial & scale : dial will be made of suitable material black figure on white background with anti-corrosive finished scale and marking over an arc of 270 degree confirming to bs-5235 non -reflective and marking as per is-3602. mounting : surface with bottom entry,dial size : 100 mm ( circular) bulb & stem dia : 12+0.5/-omm (insulated), bulb & stem length : 60mm range : 0 to 120°c., accuracy : +/-0.2° mm (insulted) material of bulb & stem : ss-316, capillary : 4 meters long steel capillary covered with red pvc tube., attachment : 2 nos .contact one for alarm and other for trip., contact rating : 5amp at 240 v ac or 0.5 amp at 220v dc for 1.5kv for 1 minute 2.0kv 50hzmake:- bhel, kdm, osmadial, nsrtc or equivalent 916047361760 , bearing temperature detector for 6.6 kv auxilliaryspecifications is here under:1. btd to be suitable for measuring the temperature of bearings of motors up to 150°c in chemical atmosphere.2. btd should have resistance element of platinum having 10092 resistance/temperature characteristics to bs 19043. element resistance (excluding leads ) 100 0.252 at 0° c.i 38.5 0.592at 100°c.4. insulation resistance between to with stand h.v test at 1.5v for 1 minute.5. resistance element to with -stand h.v test at 1.5 kv for minute.6. resistance element should be in ceramic body sealed unit.7. the sheath , covering the element is to be made of stainless steel, suitable for protecting the element from mechanical damage. complete sheath including collar be covered with insulating sleeve.8. the leads are to be 19/0.16 mm dia (19/0.006) silver plaited copper ptfe (teflon) insulted4 meter long and its resistance to be 0.05192/m. max. at 20°c.resistance at °c. 9. the leads/joint should be capable of with-standing pull out strength test of 5kg on each lead.the element resistance will be checked after this test.10. btd leads should be recovered with a flexible sleeve of stainless steel wire (35 swg ssplated with 0.5 dia strands and thi should be integral with btd.11. ferrules with letters pt indicating that btd is platinum type has to be fixed on leads s no of btd also to be indicated by ferrules.12. 3 copies of tested certificate in respect of cl3,4& 5 must be supplied with every btd13. two elements to be distinguished by colours of lead e.g element-1 red/white. element -2 blue-blue/green.14. rtd to din 43760 duplex 3 wire. pt100 , 12 mm dia, 65 mm length make:- bhel, kdm, osmadial, nsrtc or equivalent