Supply and Delivery of HDPE pipes,valves, specials and UG cables for the Delivery line at V.O.C nagar 5.00lakh ltr OHT in Thuvakudi municipality.

Amount

Supply , delivery and fixing HDPE pipes specials as per IS 8360/1977/Part I at site etc(vol 2-2025-26-pg.no.17-WD-M0235)

250mm HDPE PN10

Supply and delivery of 200mm dia of Ductile Iron Socket / Spigot Pipes for Class K9 as per IS 8329 / 2000. The rate shall inclusive of all charges such as materials and loading, unloading, transportation charges and all taxes etc, complete as per standard Specification.

Supplying, Laying, jointing of following DI specials of as per IS:9523-2000 with D.I pipes etc., complete as directed by the Engineer, and Provision for pipe connection arrangements for inlet, outlet, scour and overflow etc, including cost of pipes, specials, valve, labour charges for lifting, aligning, fixing of DI pipes etc, complete (TWAD SOR 2025-2026, Pg 40-WD-M0787)

Labour charges for cutting of B.T road or WBM roads for laying of mains and as directed by Engineer in charge. (TWAD SOR 2024-2025, Pg 195)

Earth work excavation for foundation in Hard stiff clay, stiff black cotton, hard red earth, shales murram, gravel,stoney earth and earth mixed with small size boulders SS.20B and Sand, silt or other loose soil, wet sand,or silt not under water, light black cotton soil, sandy loam ordinary soil and to full depth as may be directed except in hardrock requiring blasting inclusive of shoring shuttering and baling out water and cleaning and levelling the site etc.,complete 10 cum twad sor pg.no.191

pumping main 250mm HDPE PIPE PN 10(144+33+25)

Refilling the trenches with excavated earth (other than sand) in layers and watering, ramming and consolidation as per standard specification etc complete and as directed by Engineer in charge (TWAD SOR 2024-2025, Pg 211)

Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD officiers

Lowering the 200mm dia, of Ductile Iron flanged pipes into the trenches by proper alignment and gradient including all labour charges etc,complete as per standard specifications.

Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by Department Officers. (TWAD SOR 2024-2025, Pg 184-W0626)

Jointing the C.I/ D.I Double flanged pipes and specials with rubber insertion to with IS-638(1979) and M.S. bolts and nuts of IS 1364-1 (2002), including cost of jointing materials such as bolt and nuts Rubber insertion and labour charges etc., complete. (TWAD SOR 2024-2025, Pg 166)

250mm D.I Specials

200mm D.I Specials

Dewatering using 3HP to 70HP diesel engine pumpset including Hire charges, cost of Diesel, Engine oil, pump operator, labour charges, conveyance of pumpset and fuel to site and back, loading, unloading and any otherincidental charges etc., complete(VOL II-2025-26,Pg.No.228)

Supply and laying of 4 core 10sq.mm PVC copper UG cable., complete(SOR 2025-26 pg-284)

Supply and laying of 3 1/2 core 25sq.mm PVC copper UG cable., complete(SOR 2025-26 pg-284)

Supply and fixing in position of enamel painted MS water level indicator with all accessories of approved pattern etc., complete as per standard specifications and as directed by Engineer-in-charge (TWAD 2025-26, pg.No.95- 16.3)

Providing lightening arrestor etc., Supply of Early Streamer Emission Air Terminal (ESEAT). Model: L The ESEAT has corrosion resistant stainless chrome body made up of AISI 316 grade of height 0.50 metres 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. 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 avilable 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 ).

T SHANMUGA SUNDARAM (BID ID -1520477)