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| 1 | Deployment of manpower, instrument, tools, and all connected accessories for testing of earth resistance of existing earthing at provided earth test point for each earth set by competent calibrated digital earth test meter, electronic type along with accessories (earth rod set with Cu wire with clips) and recording the result dully signed with date by MES representative and contractorall as specified & as directed by Engg-in - Charge. |
| 2 | NOTE:- (a) Testing of each earthing shall be carried out at the interval of 3 months and measurement shall be done and paid for each time separately and test result shall be maintained dully signed with date by MES representative and contractor. (b) Pouring of water in each earth pit is deemed to be included in the rate quoted.(c) Necessary arrangement to be made by the contractor for pouring the water in earth pits.Vehicle reqd for carrying/storage of water (upto to the site) with helper will be arranged by contractor and deemed to be included in the rate quoted.(d) Cost of Maintenance of carrying vehicle (if any) and cost of fuel reqd for veh is deemed to be included in the rate quoted. |
| 3 | Supply and fix in repair Test point terminal block made of gun metal or phosphorus bronze size of 75 mm x 75 mm x 25 mm drilled and screwed with 3 Nos 8 mm dia and25 mm long screw, fixed inSMC junction box of size (170 x 170 x105)mm with hinged door fixed on wall complete all as specified and as directed.Note : SMC junction box will be measured and paid separately under respective items of this Schedule. |
| 4 | M&L for PCC earthing pit in PCC 1:2:4 type B-1 of internal size 300 mm x 300 mm x 300 mm with 120 mm thick wall and 700mm x 700 mm x 150 mm thick bed concrete and 50 mm thick precast chamber cover of RCC 1:2:4, type B1 , reinforced with welded steel wire fabric or XPM Jali (weight not less than 4.00 Kg / sqm),complete all as shown in the electrical plate No 3 of SSR part –I including demolition of old pit and removal of debris outside defence land complete. |
| 5 | Supply only Earthing Soil Resistivity improvement compound Gel, Enhancement compound Transparent Liquid Jel in 5 Kg packing all as specified and directed. Make JJ Engineering/ SM Infotech/ Powertack/ Power Plus |
| 6 | Supply and filling Common Saltin existing conventional earth pitsin appropriate pacakage all as specified and directed by Engr-in-charge. |
| 7 | Brazing of copper strip using brazing touch suitable temp and using brazing rod all as specified and directed by Engg-in-charge. |
| 8 | Supply and fixin repair mild steel galvanised earth strip of size 32 x 6 mm with epoxy insulators and fixing screws etc for earth continuity conductors to test point terminal including taking down old strip all as directed by Engr-in-charge.Note Epoxy insulator will be measured and paid separately under respective items of this Schedule. |
| 9 | Supply and fixing in repair copper earth strip of size 20 x 3 mm with epoxy insulators and fixing screws etc for earth continuity conductors to test point terminals to test point terminal including taking down old strip all as directed by Engr-in-charge. Note : Epoxy insulator will be measured and paid separately under respective items of this Schedule. |
| 10 | Supply and fix in repair Aluminium earth strip of size 25x3mm with epoxy insulators and fixing screws etc for earth continuity conductors to test point terminal including taking down old strip all as directed by Engr-in-charge. Note Epoxy insulator will be measured and paid separately under respective items of this Schedule. |
| 11 | M&L for marking of earthing pit (GI earth / Copper earth / Chemical earth) with two or more coat synthetic enamel paint, colour & pattern as approved by the Engr-in-Charge, Letter size shall not be less than 50 mm complete all as specified & directed. |
| 12 | Material and labour for renewal of earthing complete with galvanized iron earth plate electrode 600 mm x 600 mm x 6 mm thick buried directly in ground (earth pit not less than 2.25 m deep below normal ground level) with top edge of the plate not less than 1.5 m deep below normal ground connected to galvanised mild steel strip 32 x6 mm by means of bolts nuts check nuts and washer of galvanized steel, watering pipe of 20 mm bore galvanised iron medium grade and 40 mm bore galvanised iron light grade for earth strip protectionincluding all excavation earth work in any type of soil, PCC pitin PCC 1:2:4 type B-1 and RCC 1:2:4, type B1 for precast chamber cover 50 mm thick, reinforced with welded steel wire fabric or XPM Jali (weight not less than 4.00 Kg / sqm),with charcoal, salt, funnel complete all as shown in the electrical plate No 3 of SSR part –I and testing on completion. Note : Earth result after installation completely should be less than 5 ohm. |
| 13 | M&L for Chemical earthing with copper earth plate 90x60cmx 5mm & copper earth strip 50x6mm.Note : (i) Earth result after installation complete should be less than 1 Ohm .(ii) Quoted rates shall be deem to include for earth strip with protection pipe of 7.5 M length |
| 14 | Material and labour in replacementof earthing complete with copper earth plate electrode 600 mm x 600 mm x 3 mm thick buried directly in ground (earth pit not less than 2.25 m deep below normal ground level) with top edge of the plate not less than 1.5 m deep below normal ground connected tocopper strip of size 20 mm x 3.15 mm by means of bolts nuts check nuts and washer of galvanized steel, watering pipe of 20 mm bore, galvanised iron, light grade, and 40 mm bore galvanised iron light grade for earth wire protectionincluding all excavation earth work in any type of soil, PCC pit in PCC 1:2:4 type B-1 and RCC 1:2:4,........type B1 for precast chamber cover 50 mm thick, reinforced with welded steel wire fabric or XPM Jali (weight not less than 4.00 Kg / sqm),with charcoal, salt, funnel complete all as shown in the electrical plate No 3 of |
| 15 | SSR part –I and testing on completion.Note:-Quoted rates shall be deem to include for earth strip with protection pipe of 7.5 M length. |
| 16 | Material and labour in replacement for tripod chemical earthing (comprising of three chemical earthing) as per drawing attached (Sketch No 01). The chemical earthing will have specification as follows :-Make:- Powertrac/McML Earthing Solution/Ashlock.(a) Copper electrode of wall thickness minimum 2 mmnot less than 3 mtr length with not less than 75mm outer dia .(b) Fixing of copper Earth Electrode by drilling / boring 175 mm dia hole, 5.00 mtr deep in any type of strata, placing electrode in hole, return filling excavated soil by mixing min 10 kg GEL per bore and 75 kgSoil Resistivity Improvement (SRIP) compound as per manufacturer instruction |
| 17 | (c)FRP earthing result display board 254 x 380mm made out of plastic material showing information related to type of earthing, earthing result, due date of testing along with fixing size 610mm height made of plastic hollow pipe of dia 20 mm.(d)Heavy duty poly plastic Earth pit cover of HDPE material, green color, Bottom diameter ( OD 320 mm / ID 290 mm) of wall thickness 5 mm, height 260 mm with top cover, fixed in position as per manufacturer instruction complete by use of pCC around the cover for setting it properly on ground surface.(f) Contractor must visit the site before quoting the tender to understand the difficulty and cost for carrying out the job in the station. It is important that contactor ascertain the quantum of work. |
| 18 | (g) Contractor must produce the certificate from the manufacturer that chemicalearthing has been carried out by manufacturer.(h) Extension strip from electrode strip up to 0.15 m height from GL and interconnecting strip of electrode shall be deemed included in quoted rate including brazing.(g) Earthing resistance result shall be less than 1ohm.if the result comes more than 1 ohm ,the contractor shall carry out the earthing at seperate location /sie given by engg- in- charge after taking out of earth electrode without any extra cost to the department |
| 19 | Material and labour for installation, testing and commissioning of earthing using following material including necessary T&P required to complete job for earthing, excavation etc.Make:- Powertrac Model No-PT-803 or equivalent of make PRAGATI/ McML\"s Earthing Solution (MES)/ Ashlock(a) \"CHEMO\" M.F. Earthing Electrode (conforming to IS 3043:1987) of copper, 3.00 metre long, 80 mm outer dia, copper inner strip of size 50 x 6 mm thick, pipe filled with SRIP compound (50 kg per earthing electrode)(b) FRP based earthing display board with support stand FRP coated width-254 mm, length-380mm, height-610 mm(c) PCC earthing protection chamber for each earthing pit in PCC 1:2:4 type B-1 and RCC 1:2:4, type B1 for precast chamber cover 50 mm thick, reinforced with welded steel wire fabric or XPM Jali (weight not less than 4.00 kg/sqm) |
| 20 | Note:-(i) Earthwork in any type of soil, installation of complete earthing system will be carried out in presence of company\"s authorised tradesmen/ representative.(ii) Item rate quoted by contractor shall include for 250 mm dia bore upto 3 metre deep and pouring, mixing of SRIP compound with soil.(iii) Drawing for single bore earthing is enclosed.Note:- for item 11&15(i)Quoted rates shall be deemed to include for earth strip with protection pipe up to 7.5 M length.(ii)Black Soil to be arrange by contractor for mixing with charcoal, crystal salt , magnesium Sulphate & Vegetable oil and also for fiiling balance portion of unit in layers is deemed to be included to be rate quoted.(iii) transportation charges for arrangement of black soil is deemed to be included in the rate quoted.(iv) Tools and plantsrequire for making depth upto 4 Mtr os tp be arrange by contractor charge for the same is included in the rate quoted. |
| 21 | Supply and fix copper earth strip of size 50 x 6 mm for extension of existing strip wrt as item No 12 above with nut bolt / brazing all as directed by Engr-in-charge |
| 22 | M&L for back filling earthing compound as per standard IS 3043, IEEE 80and IEC 62561-7forimproved gound resistivity improver compound in powder formfor the earthing effectiveness and improves conductivity of the earth eletrode and ground contact areaand Eco frindly &effective for mainly consist of moinsutre , high conductivity , non- corrosive in nature and absorbs > 13 times water than its volume , resistivity <0.5ohm-mtrand NABL lab tested 0.039 Ohm-metc and in power physical state with taking down exisitng chemical rod and fillthe back filling compound with mixing with water all as specifed and directed by Engineer in chargeMake -JJ Engineering / SM Infotech / Powertack/ Power Plus/SABO |
| 23 | Supply and fixing in repair Unplasticised PVC pipe of pressure rating 10 kg/cm2 of size 15 mm bore (internal dia) ISI marked laid in trenches / on floor, ceiling etc including with all fitting such as elbow, union reducer tees bends etc complete all as specified and directed by Engr -in -charge |
| 24 | Supply and fixing in repair Unplasticised PVC pipe of pressure rating 10 kg/cm2 of size 20 mm bore (internal dia) ISI marked laid in trenches / on floor, ceiling etc including with all fitting such as elbow, union reducer, tees, bends, etc complete all as specified and directed by Engr -in -charge |
| 25 | Supply and fix in repair 15 mm size UPVC half turn cock valve for UPVC pipe and fixed ISI marked complete all as specified and directed by Engr -in -charge |
| 26 | Supply and fix in repair 20 mm size UPVC half turn cock valve for UPVC pipe and fixed ISI marked complete all as specified and directed by Engr -in -charge |
| 27 | Supply and fix in repair 15 mm size PVC perforated caps screw to end of puff or vent pipe fixed on UPVC pipe and its should ISI marked complete all as specified and directed by Engr -in -charge |
| 28 | Supply and fixin repair 25 mm size epoxy type insulator suitable for fixing earthing strip including screw etc all as directed by Engr-in-charge |
| 29 | Supply and fixin repair GI funnel of any type to be fix in existing earth pit. Cleaning of earth chamber is to be taken carecomplete all as directed by Engr-in-charge |
| 30 | S & F Copper strip 32 x 6mm buried in ground or drawn in conduit/ pipe complete all as specified and directed. |
| 31 | S&F in replacement of Sheet moulding compound (SMC) junction box of size170 x 170 x105mmmild steel clamps, nuts and bolts complete. Make : SINTEX / Legrand / EPP Composite Pvt Ltd |
| 32 | Excavating in trenches, n exc 1.5 m wide and n exc 1.5 m in depth, for foundation, / laying of pipe / cable etc. or for shafts, wells, cesspits, manholes, pier holes, etc. n exc 10 sq m on plan and n exc 1.5 m in depth and getting out in soft loose soil completeall as specified and directed. |
| 33 | Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc 25 cm thick using excavated soil all as directed |
| 34 | Removing excavated soil to distance n.exc 50 m and depositing where directed at a level n.exc 1.5m above the starting point all as directed. |
