REPAIR AND MAINTENANCE TO LIGHTENING PROTECTION, EARTHING AND FIRE ALARM SYSTEM AND ALLIED WORKS AT 20 WING, 273SU AND 46 WEU AT AF STN UNDER GE AF BAGDOGRA

Amount

Material and labour for Test point terminal block in repairs made of gun metal or phosphorus bronze of size 75x75x25mm, drilled and screwed including 3 nos. 8mm dia 25mm long hex. head screw complete all as specified & directed.

Material & Labour in repairs for earth result marker board of MS sheet 3.15 mm thick with suitable board size of MS flat of 30 X 20cm and 1.2 mtr long and 1 mtr above ground level after proper grouting in ground with suitable PCC work and painting with suitable colour all as directed. Note :- Legend to be used for Shapes, size and colour of paint as per existing nature of earthing or as directed.

S & F in repairs air termination single pointed copper rod 12mm dia and 300mm long with fixing socket including dismantling old one complete all as specified and as directed.

S & F in repairs air termination copper rod 12 mm dia, 1.00 mtr long single point including base plate and dismantling old one all as per specified and directed.

Taking out and removing earth strip any size any description.

S&F galvanized iron strip of size 25 x 4 mm as earth continuity conductor buried in ground or fixed to wall/floor/ground provided with porcelain insulators space not less than 0.5 mtrs complete all as specified and directed.

All as item No 6 above but of size 32 mm x 6 mm

Supply, fixing and brazing of Earth continuity conductor with adequate size insulator fixed to wall on batten or recess or any other indicated situation for loop earthing etc. as required 32mm x 6mm copper strip complete all as specified and directed.

All as item No. 08 above but of size 20 mm x 3.15 mm

Material and labour in repairs for electric Welding of existing GI strip of any size, any height (on roof/ on wall) at various places complete all as specified and directed.

Material and labour in repairs for Brazing of existing copper strip of any size, any height (on roof/ on wall) at various places complete all as specified and directed.

Improvement to chemical earthing with supply & fixing in repairs of earthing improving Black fill compound (Electrodite) of 25 Kgs bag for improving earthing result by excavation till middle of the earthing electrode and filled with Black Fill Compound (Electrodite) for any type of earth electrode and making earth strip connection good as per the existing one before the excavation and finally testing & recording the results complete as per site requirement and all as specified & directed. Make :- ASHLOK Black Fill compound (Electrodite) or any make as approved by GE.

Improvement to earthing for conventional GI/ Copper earth electrode having high ER value by excavating soil around earth plate filling of agricultural soil obtained from non defence land, filling mixture of salt and charcoal 0.2 Cum around the earth electrode re-filling soil and fixing the PCC pit, watering and finally testing & recording the results complete as per site requirement and all as specified & directed . Note For Item Nos. 12 & 13 :- Cost of agricultural soil upto one cum as brought to site for improvement of earthing deemed to be included within quoted rate by the contractor. Earth Work like excavation, returning-filling and removal of surplus soil shall be measured and paid separately.

Material & Labour for testing of earthing pits any type, duly disconnecting by test point and other loops. The test shall be carried out using ISI marked digital/Analog earth of reputed make. Test result shall be marked on earth value indicators at site and entered in a Earth Testing register after testing all as per directed.

Excavation in trenches not exceeding 1.5 m wide and not exceeding 1.5 m in depth for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, earthing pit etc and getting out in soft / loose soil complete all as specified and as directed.

Returning, filling in including spreading, levelling, watering and well ramming in layers not exceeding 25cm thick complete all as specified and as directed.

Removal of excavated material [soil] to a distance not exceeding 50 m and depositing where directed at a level not exceeding 1.5m above the starting point complete all as specified and as directed.

S&F in repairs 40 mm bore GI pipe light grade ISI marked for earth strip protection/ for lightening arrester with all fixing accessories for copper strip such as, Nut bolts and washers insulator with necessary brick work for fixing GI pipe complete all as specified and directed.

M&L in repairs for Earthing complete with copper earth plate electrode 60cm x 60cm x 3.15mm thickness burried directly in ground (earth pit not less than 2.25mtr deep below normal ground level) with top edge of earth plate not less than 1.5 mtr below normal ground level connected to and incl copper strip 20 x 3mm by means of nuts & bolts, check nuts and washers of brass incl PCC pit of 1:2:4 type B-1, cover reinforced with XPM weight not less than 4 Kg/Sqm and 6mm dia bar handle,earth pit angle iron frame of size 25 x 25 x 3mm, excavation and earth work in any type of soil, charcoal dust, salt, light grade GI watering pipe 20mm dia with funnel and wire -mesh and medium grade GI protection pipe of 40mm bore from top edge of earth plate upto main distribution board complete all to as shown in electrical plate no 3 of MES SSR Part I 2009 connected board all as specified and testing on completion. Note:- the earth resistance should be less than one ohms and GI protection pipe and earth lead more than 7.5 RM shall be measure and paid separately)

All as per item No. 19 above but using 32 x 6 mm thick copper strip.

Material & Labour for safe earthing electrode (SEE) designed with pipe technology with hot deep Zinc coated & Alloy coated (80 – 100) microns MS pipe size of outer pipe 76.3 mm dia and inner pipe 41.9 mm, 3 mtr long inside filled with ) crystalline conductive mixture (CCM) having non corrosive and conductive properties complete with two bag of Black filled compound (Electrodite) mixed with soil all around the earth pipe for smooth charge dissipation complete with PCC earth pit made in cement concrete 1:2:4 type B-1(using 20mm graded aggregate) of size 450 x 450 x 450 mm with RCC pit cover all as specified and directed. Make :- Ashlok Model No : ASEEL-39-ZC & AC (76.3mm Dia) or equivalent make as approved by GE. Note:- The earth resistance should be less than one ohms and GI protection pipe and earth lead more than 7.5 RM shall be measure and paid separately.

M& L for earthing complete with galvanized iron earth plate electrode 600x600x6 mm thick buried directly in ground (earth pit not less than 3.0 mtr below normal ground level connected to galvanized earth strip 32mm x 6mm thick by means of bolts nuts,check nuts and washers of galvanized iron or steel all as shown in electrical plate No-5 of SSR part-1 connected to earthing test point all as specified or indicated including PCC pit in PCC (1:3:6) type CI cast iron frame 50mm thick pre cast RCC (1:1 ½ :3) nominal mix cover slab reinforced with 8mm dia mild steel bar including necessary excavation earth work in soft/loose soil and disposal of spoil to a distance n.exc 50mtr and funnel with watering pipe wire mesh GI protection pipe 40mm bore including testing complete all as specified and directed.

All as per item No. 22 above but using 25 x 4 mm thick GI strip.

S & F in repairs porcelain ridge insulator of size 75 x 35 x 40mm with 01 No. GI blot of 65mm dia and 40mm long including nut & washer and 02 nos GI bolt of 10mm dia and 50mm long including nut & washer for holding/fixing copper/GI / Aluminium strip on roof/ wall complete all as specified and directed.

Material and Labour in repairs for precast cement concrete block masonry with solid blocks made with PCC 1:3:6 type CI (using 20mm graded aggregate) exc. 10 cm in width and setting in cement mortar 1:4 suitable for PCC pit for any type of earthing complete all as specified and directed.

Material and Labour in repairs for providing precast cement concrete (Type B-1 1:2:4 with 20mm graded aggregate) in landings, cover slabs (for man holes etc.) and similar articles with plain faces etc. and setting in cement mortar 1:4, suitable for RCC earth pit cover reinforced with XPM, weight not less than 4 Kg/Sqm and 6mm dia bar handle complete all as specified and directed. Note :- Precast cement concrete item shall be reinforced, where indicated and reinforcement shall be measured separately.

Material and Labour for mild steel round bars 6mm to 8mm dia TMT bars cut over to length, bent to shape required, including cranking, bending spirally for hooping for RCC earth pit cover reinforced and binding with and including mild steel wire (annealed) not less than 0.9mm dia or securing with clips complete all as per site requirement as specified and directed.

M&L in repairs for GI funnel and wire mesh for earth pits complete all as specified & directed.

Supply only conventional MCP RED with LED 470 ohms W/O black box india + surface mounting box red. Make: Agni/ System sensor/ GST as approved by GE.

Supply only conventional HORN CUM TROBE wall RED standard condela india. Make: Honeywell/ Agni as approved by GE.

Supply only 4 zone conventional fire alarm panel. Make: Honeywell/ Agni/ GST as approved by GE.

Supply and fixing of 12v 7AH battery for backup to all FACP and RTU panel. Make: Exide/ Amaron as approved by GE

Provision of services excluding spares for periodical maintenance of conventional fire alarm control panel, AC filter Transformer lead and batteries. Multisensor, Sounder, MCP, Remote response indicator carrying out normal repair for the trouble free and efficient functioning of the entire fire system by providing one engineer for monthly visit all as directed and as per specified and as per NFPA 72 guideline.

Dismantling, servicing of all optical conventional smoke detector as per exact location with the help of manufacture's instruction and testing for exact fault location including cleaning through air blower then reinstalling complete all as specified and directed every six months.

Supply only optical conventional smoke detector LPCB. Make: Agni/ System sensor/ GST as approved by GE.

Supply only two wire plug in detector base. Make: Agni/ System sensor/ GST as approved by GE.

Provision of services excluding spares for Periodical maintenance of intelligent addressable fire alarm control panel and flowchart based programmable RTU at including checking testing and cleaning of Loop card, Main board, LCD display, Printer Panel, AC filter, Transformer, Lead acid batteries, UPS, Multisensor, sounder, MCP, Repeater Panel, Zone monitor Module, Remote Response indicator, Loop Isolator, Amplifier and Loud speakers carrying out normal repairs for the trouble free and efficient functioning of the entire fire alarm system by providing one engineer for Monthly visit all as directed AND AS PER NFPA 72 Guideline complete.

Dismantling, servicing of all multisensor detector with heat and smoke combination photoelectric as per exact locations with the help of manufacturer's instructions and testing for exact fault locations including cleaning through air blower then reinstalling complete all as specified and directed every six month all as directed.

Supply of RTU Logic upgradation and development for Central Monitoring through wireless communication at Master Control Station which includes the development of logic for false alarm which comes from Addressable fire alarm control panel.

Serviceability and testing of Beam detector and its transmitter and receiver alignment with testing kit as per specified guideline once in every month all as directed.

Supply & Fixing of 12 V, 21 AH battery for back up to all FACP and RTU panel. (Make: EXIDE/ AMAR RAJA/ AMARON)

Supply & Fixing of 12 V, 1.3 AH battery for back up to all RTU panel each panel as 1 No. Make: (EXIDE/AMAR RAJA/AMARON).

Supply and Fixing in repair or replacement of Indoor addressable detectors complying with and type certified to EN-54 Addressable type multisensor detector with heat and smoke combination photoelectric / optical with base with self built intelligence all as specified and as directed. (Make: GST/SIEMENS/BOSCH)

Supply & Fixing in repair of electronically addressable intelligent resettable type manual call point with mounting base complying with EN 54 standard and LPCB approved with the specifications as appended below:- (a) Power- 24V, ≤ 0.6 mA (Standby Current) ≤1.8mA (Alarm Current) (b) Class A , (c) Initiating Mode- Pressing the action plate manually Resuming Mode-Manually Resumed by a special Key, (d) Ingress Protection IP-43 & Material-ABS (Make : GST/ COOPER/BOSCH/SIEMENS)

Supply & Fixing repair the annunciating device Remote response indicator complete all as specified and directed. (Make:- GST/BOSCH/SIEMENS)

Supply & Fixing in repair fire alarm sounder/sirens electronic type horizontal single stage continuous normal operation for at least 50 minutes with sound level 65db to 120db measured at 1.5 m with sound output variation of +5db 500m range complete all as specified and directed. (Make:- GST/COOPER/BOSCH/SIEMENS)

Supply, Install, Testing & Commissioning of Wireless modem suitable for GSM based communication system to be mounted in RTU enclosure shall be installed at all proposed buildings including taking down earthing modem. (Make : CIMCON/ MOTOROLA/ SIMOCO/ SIEMENS)

Supply and Fixing in repairs Amplifiers suitable 30 Watts, 230 VAC 50 Hz complete all as specified and directed. (Make: AHUJA/ BOSCH/ PHILIPS)

Supply and Fixing in repairs wall mounted loudspeaker 10 watt 230V AC ,50Hz of sturdy design weather proof type re-entrant horn type loudspeaker for operating under rough conditions complete all as specified and directed. (Make:- AHUJA/ BOSCH)

Supply & Fixing in repairs Zone Monitor Module compatible with Fire Alarm Control Panel. (Make: GST/ COOPER/ BOSCH/ SIEMENS)

Supply, Install and Commissioning of optical beam detector Transmitter and receiver type including testing complete as in repairs all as specified and directed. Make: GST/ COOPER/ GODREJ/ AGNI

Supply & Fixing 24 V DC Power Supply Unit of iRTU as in repairs. Make : CIMCON /SIEMENS)

Supply & Fixing 12/5 V DC Power Supply Unit of iRTU as in repairs. (Make : CIMCON /SIEMENS)

Supply & Fixing CPU card of RTU as in repairs. (Make : CIMCON /SIEMENS)

Supply & Fixing Analog and Digital I/O Card of RTU as in repairs. (Make : CIMCON /SIEMENS)

Supply & Fixing DI/AI Termination PCB of RTU as in repairs. (Make : CIMCON /SIEMENS)

Supply & Fixing of Display and Keyboard of RTU as in repairs. (Make : CIMCON /SIEMENS)

Supply & Fixing of DO Termination PCB of RTU as in repairs. (Make : CIMCON /SIEMENS)

Supply and Fixing MCB 6A SP as in repairs. (Make: HAGER/ HAVELLS/ L&T/ SCHNEIDER)

Supply and Fixing of LEDs (Red/Green) for RTU Panel as in repairs. (Make : SAFETEK)

Supply and Fixing of Relay card : 8 relay 1 c/o for RTU panel as in repairs. (Make :CONNECTWELL/ BRISK/ ELMEX)

Supply and Fixing of PUSH BUTTON WITH NO CONTACT (BLACK) as in repairs. (Make: ESBEE)

Supply and Fixing of GST200-2 Main Board F2.908.826a for FACP as in repairs. (Make: GST)

Supply and Fixing of LCD Screen CGM12864 for FACP as in repairs. (Make: GST)

Supply and Fixing of GST200 Rubber Keypad F7.843.249 for FACP as in repairs. (Make: GST)

S&F of GST200 Loop Interface Board F2.908.828 (RoHS) for FACP as in repairs. (Make: GST)

S&F of GST200 Power Supply Unit F2.932.069 (20100682) for FACP as in repairs. (Make: GST)

S&F of Transformer 220V/27V-100W-R for FACP. as in repairs. (Make: GST)

Supply and Fixing of PRN-6 printer, for FACP as in repairs. (Make: GST)

Supply and Fixing in repairs two core copper conductor of size 1.5 sqmm FRLS flexible shielded cable complete all as specified and directed.

NOTES :- 1. The amount of schedule of credit shall be deducted from the total of this BOQ for arriving at contract sum.

SUNIL DAS AND CO

SREE SWAPAN KUMAR GHOSH

HALDER ENTERPRISERS

M/S MANAS MITRA

M/S SUNNY ENTERPRISE

SHRI P P SHARMA

M/S Banerjee construction co

M/s Prakash Traders