NCTPS I Operation circle OE Dn Fire Fighting Unit I II III HVWS MVWS systems Overhauling of emulsifier system of all transformers Main oil Tank and cable galleries during the year 2022 23

Amount

Checking the operation of deluge valve of size 100 NB / 150NB in Emulsifier system

Checking the operation of deluge valve of size 80 NB in Emulsifier system

Charges towards overhauling of deluge valves by dismantling, inspection of internals, thorough cleaning, changing of diaphragm seating washer, replacement of worn out priming system including cost of changing of corroded and worn-out fitting etc. including cost of consumables and T&P hire charges

Charges for cleaning the water spray nozzles/bulbs in emulsifier system of size 1"/ 3/4" BSPT including cost of T&P and consumables.

Charges for flushing the spray system pipe line including cost of T&P and consumables.

Charges for renewal of gaskets in flanges and worn out/corroded clamp fittings in emulsifier system including cost of T &P and consumables. 25 NB detection network.

Charges for renewal of gaskets in flanges and worn out/corroded clamp fittings in emulsifier system including cost of T &P and consumables. 50 NB spray network.

Charges for renewal of gaskets in flanges and worn out/corroded clamp fittings in emulsifier system including cost of T &P and consumables. 80 NB spray network.

Charges for renewal of gaskets in flanges and worn out/corroded clamp fittings in emulsifier system including cost of T &P and consumables. 100 NB spray network.

Charges for thorough cleaning and painting of HVWS system pipelines, pylon supports, detector lines, deluge valves, its fittings and Drain oil system pipe lines with two coats of enamel paint including cost of all materials and consumables

Charges for cleaning strainer by dismantling and removal of the top cover of strainer body, removal of the filter element, complete cleaning of the filter element and strainer body, filter mesh and strengthening stiffener rod, reassembling the filter element, fixing the top cover, leak checking. For 150mm dia

Charges for cleaning strainer by dismantling and removal of the top cover of strainer body, removal of the filter element, complete cleaning of the filter element and strainer body, filter mesh and strengthening stiffener rod, reassembling the filter element, fixing the top cover, leak checking. For 100mm dia

Charges for cleaning strainer by dismantling and removal of the top cover of strainer body, removal of the filter element, complete cleaning of the filter element and strainer body, filter mesh and strengthening stiffener rod, reassembling the filter element, fixing the top cover, leak checking. For 80mm dia

Charges for recharging of fire trace automatic fire suppression system erected in the electrical panel of Oil centrifuge /oil conditioner of MOT’s by dismantling the extinguisher and the accessories from the system, recharging and re-erection of the same including cost of transportation, gas, paint, T&P and consumables.

M MANOHARAN