Annual maintenance of Electrical Installation of the State Central Library urgent EI work regarding installation of Multifunctional Meter at Sub Station and AC starter at different places of State Central Library Ultadanga

Dislodging/ Pulling out wiring(2x4+1x2.5sqmm) from existing SP Timer DBs(AC m/cs) and reconneccting the same from proposed AC starter including mending good damages neatly as per direction of EIC without hampering day to day office work & no power interruption in the entire Library with all necessary arrangements like Cu wire (2x4sqmm +1x2.5sqmm aprox. 1mtr) should be should be provide.These are descripted below.

Supplying and fixing of PVC Rigid Conduit 'FR [Precision Make] on wall, ceiling with saddles and other accessories as required and mending good damages to building works of following size: b). 25 mm dia [between Timer DB & proposed AC Starter]

Making holes on RCC ceiling 125 mm depth having dia of following sizes : 125 mm depth, 25 mm dia.

Supplying and Drawing 1.1 KV single core stranded 'FR PVC insulated & unsheathed single core stranded copper wire (Brand approved by EIC) of the following sizes in the prelaid polythene/Rigid pipe and by the prelaid GI fish wire and making necessary. connection as required. a) 3 x 22/0.3 (1.5 sqmm) [for inetrnal connection of Timer DB]

b) 2x56/0.3 (4 sqmm) + 1x36/0.3 (2.5 sqmm) as ECC [for necessary connection Existing Timer DB to proposed AC Starter ]

Finishing of the PVC insulated wire ends by socketting with pin/ ring type copper sockets and insulated tapes etc., including supplying sockets, tapes. a) 1.5 sqmm (existing AC m/cs i/c cable 3x 1.5sqmm )

b) 2.5 sqmm ( existing Contactor to proposed Starter i.e. 2 nos )

c) 4 sqmm ( existing Contactor to proposed Starter i.e. 4 nos )

Supply & Fixing 240 V, 25 A, Modular type starter (Brand approved by EIC) with 25A Modular switch type DP MCB (CCurve) and 4 Module GI Modular type switch board with 4 Module top cover plate flushed in wall incl. S&F switch board and cover plate and making necy. connections with PVC Cu wire and earth continuity wire etc.

Supply and fixing of 3pole power contactor(AC3 range 22A) in the existing AC timer DB in place of obsoleted Contactor. Make L&T MNX 22 or aprove as per EIC.

Supply and fixing of 3phase DOL Starter in the place of obsoleted one. Make:L&T MK1 3 phase DOL starter relay range:11A-18A

Supply & fixing of Multy functional LED digital meter for parametrs displaying by 3 phase V, A, F, kW, KVA, kVAr, kWh, kVAh, kVArh, PF, Runhr, Onhr, Interrupts,Phase angle, THD, Neutral current, Max Demand (with RTC) on the existing 800A OCB panel with necessary arrangements and making connection as per direction of EIC.(make-L&T ,MFM 5010 LCD Meter Class 1 ,cat No:WL501010OOOO or aprove make as per direction of EIC) .

Supplying and fixing 240 V MCB of Breaking capacity 10kA & C characteristics on Din rail (providing & fixing by necessary din rail ) in LT Panel and necessary connection.[for multifunctional meter protection] a) 2A SP MCB(Make- Legrand/ Schneider/Havells)

supply & fixing & connecting of LED indicating lamp (R-Y-B) on existing LT panel as per direction of EIC.Necessary internal cu wiring should be done as required. Make: L&T [ Lauritz Knudsen ] 22.5 mm Hole Dia LED Indicator EPLR024C or as per EIC.