Provn of earthing and lightning arrestor for AFNET Eqpt at Vayu Vihar and Command Bldg at HQ SAC(U) at Trivandrum

Amount

SCHEDULE 'A'

Supply & Installation of 8 mm dia solid Aluminium Conductor for roof top mesh grid & Down Conductor meets the requirement of IS IEC 62305 Tested for Electrical Resistivity test as per IEC 62561- 1& 2,Mechanical Load Test ( 216 Mpa ) as per IEC 62561- 2 with No sign of corrosion as per IEC 62561 -2 )

Supply of Al conductor holding clamp suitabe for mesh grid conductor & down conductor ,.Conductor holder @ 1 meter distance to meet the requirement of IS IEC 62305 and tested as per IEC 62561

Supply and fixing of SDS Holder - SS-for conductor fixing on metal roof

Providing of cross universal connector: For T and cross connection, to route vertical down conductor /mesh formation meets the requirements of IS IEC 62305 Supply and installation of suitable Stainless Steel Cross Connector for 8 mm round AL conductor to meet the requirement for IS/IEC - 62305. Tested for Electrical Resistivity test as per IEC 62561- 2,Mechanical Load Test as per IEC 62561- 1

Supply of Straight Splicers for Aluminium Conductor as per IS/ IEC 62305 .Tested for Electrical , Mechanical and chemical as per IEC 62561.Tested for Electrical Resistivity test as per IEC 62561- 2,Mechanical Load Test) as per IEC 62561- 1.

Supply of Expansion Piece with connector to compensate the expansion and contraction of Solid Round Al. Conductor during temperature variations to be provided on conductors length over 20 meters with Expansion Piece Connector for to connect Solid Round Al. Conductor at both ends to meet the requirements of IS/IEC 62305.

Special SDS fixure for AT on PEB Structure roof- site specific

Supply & Installation of 8 mm dia solid Aluminium Conductor for roof top mesh grid & Down Conductor meets the requirement of IS IEC 62305 Tested for Electrical Resistivity test as per IEC 62561- 1& 2,Mechanical Load Test ( 216 Mpa ) as per IEC 62561- 2 with No sign of corrosion as per IEC 62561 -2 )

Supply of Al conductor holding clamp suitable for fixing 8 mm Down Conductor,Conductor holder @ 1 meter distance should be tested as per IEC- 62561-2 conditioning & Ageing test, conducted in the Govt. accredited thirty party laboratory to meet the requirement of IS/ IEC 62305

SITC of I Beam Holder-SS for Fixing Al conductor with I-Beam-10 mm thick (JEF Make of type JICL18)

Each down-conductor should be provided with a test link in order to disconnect the earth termination system for enabling measurements. To connect Round Conductor to Flat to meet the requirement of IS/IEC - 62305.

Suply of 25 X 6 mm GI strip from AL Conductor to the earth pit station and further the same strip shall be used for interconnecting all the earth pits below ground leve Zinc coating: 500 g/m square (Approx :70 micron coating) Should be tested and use exclusively for lightning protection ,earthing system and ring equipotential bonding

Supply of conductor holding clamp suitabe for 25 X 6 mm GI strip as per Site requirement

Earthing comprising of 14.2mm dia 3 mtr long electrode of low carbon steel electrode with 250 micron copper bonding & 1 bag of Ecosafe Based environment friendly backfill and suitable clamp, Back-fill earthing enhancing compound should strictly be a Eco Safe Carbon based conductive concrete type which has a resistivity of less than 0.12 Ohm Mtr as per Clause 14.5D of IEEE : 80 standard. Back-fill compound should be electronically conductive ( Like in metals ) and should not depend on moisture for conduction. Back-fill compound should be environment friendly, should solidify when mixed with water and set like concrete and should not leach / diffuse into the ground. Back-fill compound shall not be mixed with any soil while pouring in the bore hole. Test Certificate as per as per IEC : 62561-7 for Back-fill compound shall be submitted along with the material. Earth Pit Chamber with following dimensions :254 mm dia (top), 330 mm dia (bottom) &260 mm (height).

Supply and fixing of SPD for 1 phase Electronic equipment (PLC, DCS, Display unit etc.);

Supply and fixing of DMD3-30MAG with potential free contact- 20KA In-3-LEPS;

Supply and installation of Model- DMD3-50 MAG; Lightning Impulse Current (10/350) (I )Rating Iimp-7.5KA (L-N) & 25 KA (N-PE),Maximum Discharge Current (8/20)(I ) Imax- 50 KA -3 Phase - Without Enclosure (Type 1+2)

Supply and fixing ofClass II,Imax-20kA,Up-79V;

Supply and fixing of of 25 X 3 mm Copper strip;

30 mtr Deep driven Electrode: Supply of "Earthing sets" comprising Of 10 Nos of 17.2 mm dia 3 mtr long Earth electrode of low carbon steel electrode with 250 micron copper bonding & 10 bag of Ecosafe Based environment friendly backfill and suitable clamp, Back-fill earthing enhancing compound should strictly be a Eco Safe Carbon based conductive concrete type which has a resistivity of less than 0.12 Ohm Mtr as per Clause 14.5D of IEEE : 80 standard. Back-fill compound should be electronically conductive ( Like in metals ) and should not depend on moisture for conduction. Back-fill compound should be environment friendly, should solidify when mixed with water and set like concrete and should not leach / diffuse into the ground. Back-fill compound shall not be mixed with any soil while pouring in the bore hole. Test Certificate as per as per IEC : 62561-7 for Back-fill compound shall be submitted along with the material. Concrete chamber 300X300 mm;17.2 / OD SS Clamp Both Side;Exothermic Jointing Set (Each 3 Mtr).

18 mtr Deep driven Electrode: Supply of "Earthing Sets " comprising of 6 Nos of 17.2 mm dia 3 mtr long Earth electrode of low carbon steel electrode with 250 micron copper bonding & 6 bag of Ecosafe Based environment friendly backfill and suitable clamp, Back-fill earthing enhancing compound should strictly be a Eco Safe Carbon based conductive concrete type which has a resistivity of less than 0.12 Ohm Mtr as per Clause 14.5D of IEEE : 80 standard. Back-fill compound should be electronically conductive ( Like in metals ) and should not depend on moisture for conduction. Back-fill compound should be environment friendly, should solidify when mixed with water and set like concrete and should not leach / diffuse into the ground. Back-fill compound shall not be mixed with any soil while pouring in the bore hole. Test Certificate as per as per IEC : 62561-7 for Back-fill compound shall be submitted along with the material. Chamber size of 300x 300 con-create chamber17.2 / OD SS Clamp Both Side;Exothermic Jointing Set each 3 Mtr once.

6 mtr Deep driven Electrode: Supply of "Earthing sets" comprising of 2 nos of 17.2 mm dia 3 mtr long Earth electrode of low carbon steel electrode with 250 micron copper bonding & 2 bags of Ecosafe Based environment friendly backfill and suitable clamp, Back-fill earthing enhancing compound should strictly be a Eco Safe Carbon based conductive concrete type which has a resistivity of less than 0.12 Ohm Mtr as per Clause 14.5D of IEEE : 80 standard. Back-fill compound should be electronically conductive ( Like in metals ) and should not depend on moisture for conduction. Back-fill compound should be environment friendly, should solidify when mixed with water and set like concrete and should not leach / diffuse into the ground. Back-fill compound shall not be mixed with any soil while pouring in the bore hole. Test Certificate as per as per IEC : 62561-7 for Back-fill compound shall be submitted along with the material.Concrete chamber 300 x 300 mm.17.2 / OD SS Clamp Both Side;Exothermic Jointing Set each 3mtr once.

3 mtr Deep driven Electrode: Supply of "Earthing sets" comprising of 17.2 mm dia 3 mtr long Earth electrode of low carbon steel electrode with 250 micron copper bonding & 1 bag of Eco-safe Based environment friendly backfill and suitable clamp, Back-fill earthing enhancing compound should strictly be a Eco Safe Carbon based conductive concrete type which has a resistivity of less than 0.12 Ohm Mtr as per Clause 14.5D of IEEE : 80 standard.Back-fill compound should be electronically conductive ( Like in metals ) and should not depend on moisture for conduction. Back-fill compound should be environment friendly, should solidify when mixed with water and set like concrete and should not leach / diffuse into the ground.Back-fill compound shall not be mixed with any soil while pouring in the bore hole. Test Certificate as per as per IEC : 62561-7 for Back-fill compound shall be submitted along with the material. Earth pit chamber size of 300x 300.;17.2 / OD SS Clamp Both Side

Total of Schedule 'A'

KML CONSTRUCTION

BHARAT MULTITECH INDUSTRIES PVT LTD