NIT No.08 /(EnM)M-7/2023-24 Item 07

Making of all safety arrangement i.e. safety belt, gum boots, helmet, gloves etc. to carry out the work as per site requirement & instructions of engineer in charge.

Dismantling the old ACB of complete including its cradle after disconnecting the joints and mounting connections after discharging the ACB in proper shut down condition of the L.T. panel with all tools, men power etc.

Supply of heavy duty 4 Pole current capacity 800 Ampere Air Circuit Breaker (ACB) with Auxiliary switch, Breaking capacity 50 KA, with over current and short circuit protection & as per IEC 60947-2, IS 13947-2, Triple Pole, 415V AC, Make: BCH

Fixing the new 800 Amp. ACB with cradle in the bus coupler chamber including supply and fixing of MS Angle base support/frame of suitable size for mounting the ACB with supply of material and complete work as required with all tools, men power etc.

Modification of the busbar, insulators of the bus bar after dismantling the existing bus bar connections of ACBs & amendment of bus bar lengths in aluminum construction of suitable cross-section/ measurement with bending/shaping as required for retrofitting of ACB and making the bus bar joints to of the new 800 amp ACB and other required items for the replacement existing ACBs for making all the required connections of supply arrangement at both sides including bending/cutting/shaping of the bus bars as required. The job includes providing of nuts bolts insulators, other consumables as per site requirement.

Work of replacement of R, Y, B, LED type 22mm LED indicator. Make: BCH

Providing and fixing of push button for ON/OFF the starter size 22.5mm with element No+NC, work includes opening of old and non-working push button in the panel using all tools & equipment.

Providing and fixing of terminal block of ACB panel, work includes opening of old & non-working TB in the panel using all tools & equipment’s.

Providing and fixing of CT as per site requirement & removal of old and non-working CT in the panel using all tool & equipment’s.

Providing and fixing of digital type ampere meter of size 96x96 with Aux supply 220V AC/DC Make: AE/C&S/Schneider with programmable CT Ration as per site requirement & removal of old and non-working meter in the panel using all tool & equipment’s.

Work of rectification of faulty wiring/termination of existing cable with lugs/tapes etc. required in the control section of the LT panel wiring as per site requirement.

Work of vacuum cleaning of the complete panel after removal of ACB from the panel, the work includes the cleaning of the incomer chamber & burnt insulation inside the chamber and removal of small and old screws etc. work includes complete dusting of all components, cleaning of contact point with CRC solution, decarbonizing of various joints of the panel.

Work of re-insulation of the existing busbar with RYB high insulation tape, sleeving of live parts work includes the removal of old insulation from live parts and cleaning of the busbar with all tools all required equiment’s.

Testing of complete panel along with all the function of the newly installed ACB & complete panel as per load requirement and testing of operation/bus coupling operations. Testing of the phase reversal arrangement & interlocking of ACB as required.

K.L Enterprises