Tamil Nadu Housing Board Tender

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Tamil Nadu Housing Board - TNHB Tender

Electrical Goods and Equipments
Electrical and Electronics
Eprocure
Opening Date13 Jul 2023
Closing Date28 Jul 2023
Tender Amount₹ 38,47,000 
Notes
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Costs

Summary

Providing Additional Electrical Items

Description

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BOQ Items

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DO_NOT_SHOW

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SMC Junction Box fire proof and shock proof with suitable clamp

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10A SP MCB

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30W LED outdoor street light fittings (Crompton/Havells)

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1 sq.mm PVC copper wire

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Coil earth

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Supply, erection, testing and commissioning of Three Phase Automatic Street light Controller of outdoor type housed in suitable size of powder coated enclosure made up of 16 SWG CRCA sheet steel with lock and key arrangements accomodating the following with necessary internal wiring with 6 sqmm.

2

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a) 0-24 hours timer switch with Auto ON/OFF. b) 32A TP MCB Legrand C) 63A 4 pole power contactor d) Auxiliary contact assembly suitable for 63A power contact with 2 NO and 2 NC - 1 no with surge suppressor (MCB's, Timers should be Legrand / Hagers contactor should be L & T / Siemens / BCH ). The metal danger board shall be fixed at approximate location.

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Supply and fixing of 3 phase Vertical type 4 way triple pole & neutral MCB distribution board in sheet steel enclosure with acrylic door with IP 42 protection with 100A 4 pole MCB as incoming and 4 Nos. 63A TP MCB as outgoing in flush with wall and making good of the concealed portion with earth connection.(The MCB DB and MCB should be Legrand / Hager make).

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Supply and fixing of 63A FP change-over switch with suitable angle iron frame work with MS cable entry boxes with earth connection only.

6

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Supply and laying of 4 x 16 sq.mm PVC armoured LTUG cable in a trench to be excavated at a depth of 0.75 metre putting 0.15 mt. Layer of sand and covering the cable completely with bricks and sand and refilling the earth to make good.

1200

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Supply and laying of 4 x 16 sq.mm PVC armoured LTUG cable in a trench to be excavated at a depth of 0.75 metre and covering the cable through suitable GI pipe (32 mm dia) and refilling the earth to make good.

60

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Supply and clarnping of 4 x 16 sq.mm PVC LTUG armoured LTUG cable on post or on wall with MS Clamps.

300

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Supply and fixing of brass cable gland for 4 x 16 sq.mm PVC LTUG armoured cable with earth connection.

30

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Supply and providing cable end termination of 4 x 16 sqmm PVC LTUG Aluminium armoured cable with necessary aluminium cable sockets by crimping etc. with electrical connection complete.

30

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Supply and laying of 3 1/2 x 25 sq.mm PVC armoured LTUG cable in a trench to be excavated at a depth of 0.75 metre putting 0.15 mt. Layer of sand and covering the cable completely with bricks and sand and refilling the earth to make good.

670

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Supply and clamping of 3 1/2 x 25 sq.mm PVC LTUG armoured LTUG cable on post or on wall with MS Clamps.

200

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Supply and fixing of brass cable gland for 3 1/2 x 25 sqmm PVC armoured LTUG cable with earth connection.

40

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Supply and providing cable end termination of 3 1/2 x 25 sqmm PVC LTUG Aluminium armoured cable with necessary aluminium cable sockets by crimping etc. with electrical connection complete.

40

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Supply and clarnping of 3-1/2 x 240 sq.mm. PVC LTUG armoured cable on post or on wall with MS clamps.

400

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Supply and fixing of brass cable gland for 3-1/2 x 240 sq.mm. PVC armoured LTUG cable with earth connection.

12

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Supply and providing cable end termination of 3 1/2 x 240 sqmm PVC LTUG Aluminium armoured cable with necessary aluminium cable sockets by crimping etc. with electrical connection comple)

12

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Supply and run of No-8 SWG Cu Conductor in suitable PVC rigid pipe on wall and ceiling with painting of suitable colour.

500

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Supply, fabrication, erection and commissioning of 200A dust and vermin proof floor mounting cubical type panel board of size 6ft x 5ft x 1.5ft made up of 16 SWG CRCA sheet steel for outer body and stiffness and doors, switch supports respectively and supply and fixing of following interior mounting switches with centre bus bar chamber and vertical covers on both sides of the bus bar chamber at the extreme ends side and confirming to IS specification.

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(1) 200A TPN switch disconnector interior only with HRC fuses double break as incomer- 2Nos with interlocking arrangements

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(2) 63A TPN switch disconnector interior only with HRC fuses double break as outgoing - 8 No

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A separate chamber on top of one side should be built with multi function digital volt meter, ammeter and frequency meter with one set of LED pilot lamp set with fuse base, top with 10A HRC link for 3 phase (Siemns) the bus will have 2 Nos 1" x ⅛" earth bus must be run all around the panel to provide double earth connection to the cubical switches cable glands, cable adopter box etc.

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the bus should be mounted on synthetic moulded compound bus support at equal interval as per IS specifications.

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The switch should be separated from the bus by hylum sheet separators, and properly earthed by tinned solid copper flat as I.E rules CEIG specifications. The panel should be painted with two high quality enamel paint over one coat of red oxide primer

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Supply and fixing of 65mm (2 1/2") GI pipe of 6 mtr length with 300mm x 300mm x 6mm M S base plate duly welded at the bottom with concreting with construction of masonry pedestal for laying the above cable tray.

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Supply and fixing of GI Hot dip galvanized powder coated preforated cable tray on ceiling or wall with necessary fasteners, bolt nuts and clamps.

150

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Supply and fixing of 3 phase 300A aerial fuse unit for 3 nos 300A fuse units (500A) on suitable MS sheet covered with 6mm thick hylem sheet on suitable angle iron work the tapping pole with necessary clamps.

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Preparation of site plan, physical layout, electrical line schematic diagram 10 sets, getting drawing approval from CEIG, preparation of completion report, rectification report, etc., and arranging CEIG inspection and obtaining safety certificate from CEIG, payment of CEIG inspection fees and preparation of one set approved drawing and copy of safety certificate in a neat frame work for 62.5 KVA DG Set and High rising Building blocks of 6 Nos.

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LIGHTNING ROD

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Supply of Early Streamer Emmission Air Terminal (ESEAT). Model : L .The ESEAT has corrosion resistant stainless chrome body made up of AISI 316 grade of height 0.50 meters capable of working in hazardous atmosphere.The Air terminal is non - radioactive and requires no special licensing. The unit is fully autonomous (no battery, no external power supply is required),collects energy from the ambient electric field. The ESEAT model has been tested in a high voltage laboratory in accordance with NFC 17 102 in order to measure the average gain in triggering.The average gain in triggering time (ΔTs) obtained during the lab test for the offered model is 60 µs.

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The ESEAT works on negative as well as positively polarized discharges. ESEAT has been tested for such discharges in Central Power Research Institute (CPRI). A dedicated tester is available to test the healthiness of the ESEAT on request (Page No.37,Point No. 3 of Clause 8.6 of the revised NFC 17-102 version 2011). ESEAT Model : L - Radius of protection : 86 Meters. Level of protection considered for the Project - II level.

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Supply of Standard/Special Mounting Structure of height 4.5 mtrs.pipe and 300 x 300 x 8mm MS plate,3 mtrs. 48mm OD class C GI outer pipe,1.8mtr, 38mm OD inner pipe, for roof mounting on concrete base and with FRP adapter.

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Supply and run of 25mm x 6mm GI Flat Down Conductor with necessary clamps / supports on wall/floor/ground for earth connection.

40

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Supply of Test link Box for each Down conductor in order to disconnect the earth termination system to enable measurement of resistance.

1

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Supply and installation maintenance free GI Earthing System comprising of 50mm dia and 2 mtr. Long earth electrode of low carbon steel rod with 100 micron bonding and 25 kgs.of carbon based environment friendly backfill compound and suitable clamp.

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Supply and installation Cabinet Type Class 1 and 2 Combined Model SPD to arrest surges and overvoltages in the power line due to lightning switching action etc.,they must be installed in the incoming MCC panel / DB of the respective buling in parallel to the power circuit. Model : PSV4-12.5/400TT (3 phase power network)

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Supply and fixing of 30 W LED street light fitting (Crompton/Havells) complete with IP65 protection with 25 mm dia GI pipe (Class 'B') with 1 No 25mm GI Bend complete on the existing post / wall with PVC unsheathed copper leads MS clamps and aluminium painting including cost of materials and fixing charges etc., complete and as directed by the departmental officers. .

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This work includes

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30W LED street light fitting

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25mm dia GI pipe

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25mm dia GI bend

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MS Clamp set complete

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1 Sq.MM Copper wire.

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Sub Total

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GST 12%

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