Extension and revamping of lightening arrestor over the sheet metal roof with surge protection devices at SEPF Kasaragod Kerala

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Experience of having successfully completed similar works during last 7 years ending last day of month previous to the one in which applications are invited. [Latest work experience certificate may be uploaded] (i) THREE similar completed works each costing not less than the amount equal to 40% of the estimated cost. (ii) TWO similar completed works each costing not less than the amount equal to 50% of the estimated cost. (iii) ONE similar completed work each costing not less than the amount equal to 80% of Amount put to the tender.

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DECLARATION I

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Valid Electrical Contractor License of appropriate voltage issued by any State Government under clause 45 of Indian Electricity Rules 1956.

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Schedule-A

Specification of item

Providing and fixing 1 meter air terminal with accessories as per annexure - I (1) Make: Ashlok/Cape Electric/OBO/DEHN

Providing and fixing 3 meter air terminal with accessories as per annexure - I (2) Make: Ashlok/Cape Electric/OBO/DEHN

Supply and fixing of 8mm diameter solid aluminium round conductor as per annexure - I (3) Make: Ashlok/Cape Electric/OBO/DEHN

Supply and fixing of polyamide conductor holder 30mm with suitable stainless steel screws for fastening the conductor. Tested for weather and temperature resistant from -35 to +90 degree celsius. Make: Ashlok/Cape Electric/OBO/DEHN

Supply and fixing of stainless steel clamping clip with suitable stainless steel screw to fasten the conductor. Tested for weather and temperature resistant from -35 to +90 degree celsius. Make: Ashlok/Cape Electric/OBO/DEHN

Supply and fixing of cross connector/T connector/ quick connectors as applicable to route vertical down conductor /mesh formation made of hot dipped galvanised iron with necessary stainless steel screws, bolts and nuts as applicable. All materials used shall be corrosion free/resistant. Make: Ashlok/Cape Electric/OBO/DEHN

Supply & fixing of spacer for flat conductor of size 25x4mm, with polyamide base with suitable stainless steel screws and bolts as required and overpiece made from hot-dip galvanised steel. All materials used shall be corrosion free/resistant. The spacers shall be fixed at an interval of 1 mts. Make: Ashlok/Cape Electric/OBO/DEHN

Providing maintenance free earthing system as per IS/IEC 62305 part3, IS/IEC 60364, IS/IEC 62561 part 2, IS 3043, UL 467 & UL 96 standards as per Annexure-I(4)

Providing and fixing of plastic corrosion protection strip approx 1.0 mm thick and width 50mm made of petrolatum-coated chemical fibre fabric. Make: Ashlok/Cape Electric/OBO/DEHN

Providing and fixing equipotential bonding rail for lightning arrestor applications (Test Joint) as per annexure - I (5) Make: Ashlok/Cape Electric/OBO/DEHN

Supply & Installation of Three Phase Pluggable type surge arrestor for Installation at Main Incoming Panels ( LT panel at substation) as per annexure - I (6)

Supply & Installation of Three Phase Pluggable type surge arrestor for installtion at Sub Panel Level (PCC panel at individual buildings) as per annexure - I (7)

Supply & Installation of Three Phase Pluggable type surge arrestor for installation at UPS as per annexure - I (8)

Supply & Installation of Surge protection devices for ethernet as per annexure - I (9)

Supply & Installation of Surge protection device for industrial telecommunications systems as per annexure - I (10)

Supply & Installation of Pluggable type surge protection device for single phase power line of electric fence as per annexure - I (11)

Scope of work

Air terminals as per IS/IEC -62305 part-3, 10mm diameter aluminium interception rod of 1 meter length with an interception tip on the top. The air terminal shall be quick mountable on the base using plug technology using a suitable connector. All materials used shall be corrosion free/resistant.

Air terminals as per IS/IEC -62305 part-3, 16mm diameter rod tapered to 10mm diameter aluminium rod. Should meet the technical specification according to DIN EN 50164-2 and IS/IEC 62305, semi-hard (E-AlMgSiO5 corresponds to DIN 48801). Suitable for high wind load. System should consist of Fang Fix with base and clamp for erection of air terminal. Fang fix clamp made of cable bracket should be lightning tested for 100 KA 10/350 micro sec waveform. All materials used shall be corrosion free/resistant.

Solid aluminium conductor shall meet the technical specification according to DIN EN 50164-2 (VDE 0815 part 202) and requirement of VDE0185/305 (IS/IEC 62305) round 8/ALU: semi-hard (E-AlMgSiO5 corresponds to DIN 48801) with 50 sq.mm cross sectional area. Shall be supported by conductor holder/clamp at an interval of 0.5 meter. All materials used shall be corrosion free/resistant.

a) Providing maintenance free earthing system comprises of molecularly bonded copper coating of 250 microns of 99.9% purity on low carbon steel of 3m length and 20mm dia, with fault current withstand capability of 20 KA rms value for 1 second and I peak of 50 KA. Universal Clamp made of SS 304 for clamping. Test certificate on copper coating shall be provided from a repute lab. b) Earth enhancing mineral compound shall be used for improving the soil conductivity. The material shall be mineral inert to sub soil and shall not pollute the environment and non corrosive to earth rod. The material should have a resistivity less than 0.2 Ωm. It should be free from hazardous substances. It should contain earth metals such as Silica (SiO2), Calcium (Ca), Magnesium (Mg), Chlorides (Cl), Phosphorous (P), Sodium (Na), Potassium (K), Carbonates(CO3), Nitrogen(N) and Ash content etc. It should be free from hazardous substances such as Bentonite, Arsenic, Mercury which will pollute the ground water and is carcinogenic in nature. The mineral compound is required to have minimum 10 Kg of the total composite or more as required to ensure the resistance of earth pit to be less than 2 ohms for clean earth pits and less than 5 ohms for normal earth pits. Test certificate from a reputed lab wrt the mineral compound content should be furnished. c) Polypropylene & Polyethylene (UFE) earth electrode inspection chamber with heavy duty cover should be used to cover the earth rod. The dimension shall be approx 170mmx170mmx 190mm with a weight bearing capacity of 50KN. d) Identification nameboards with details for differentiating Power earthing, LA Earthing, Anti static earthing, transformer earthing, LT panel earthing etc and information such as Earth Pit No, Connected to, Measurement date, Resistance value, Due date, Type of earthing etc as per EIC. Board design shall be provided by HAL and the same shall be fixed vertically on a GI tube with a GI plate as per site conditions. The lable should be stuck on the plate. The frame should be properly painted with primer and paint to prevent rusting and corrosion. e) Earth pit resistance should be checked every 6 months (two times during warranty period of 1 year after completion of the new earth pit and if any deviation found should be corrected. Make: Ashlok/Cape Electric/OBO/DEHN

Equipotential bonding rail as per IS/IEC 62305 (DIN VDE 0100-410/540 and DIN VDE 0185-305). Base plate and cover hood made from polystyrene, black colour, UV resistant. Should be suitable for outdoor applications also. Screw and crossbar made of stainless steel. Capable of carring lightning current of 100KA (10/350). Connection options shall be: 7 x single or multi-core conductors upto 25mm square or fine core conductors upto 16mm square. 1 x round cable 8-10mm. 1 x flat strip 30mm or round cable 8-10mm. All materials used shall be corrosion free/resistant.

Pluggable type surge arrestor of Type Class B ( 8 Module Space ) in external combination with Class C (4 Module Space ) as per IEC 61643-11 with potential free contact, with completely assembled enclosure & provision for inbuilt common remote indication for defective arrestors. 3 nos of encapsulated spark gap & 3 nos of single large block of MOV with series thermal fuse and cooling gel to connect between Line and Neutral and one number arrestor encapsulated spark gap type to connect between Neutral and Earth of following ratings including base element & pluggable arrestors. Nominal voltage -230V 50Hz, Lightning Impulse current-100 KA (10/350µ sec) & Total Arrester Surge Current - 100KA (8/20µ sec) for Line to Neutral & 125 KA(10/350µ sec) for Neutral to Protective Earth, voltage protection level <1.3 KV ( L to N) & <1.3 KV ( N to E). Operating temp -40º to +85ºC. Response time <25 nano sec. The whole assembly shall be enclosed in a suitable RoHS complied, IP66, IK06 & UV Resistant polystyrene distribution box of necessary size. The installation shall be made complete with necessary fittings and interconnections with suitable sized copper cable. Warranty - 5 years Make: Cape Electric/OBO/DEHN/ABB-Furse/Phoenix

Pluggable type surge arrestor of Type Class B+C (4 Module Space) as per IEC 61643-11 with potential free contact, with completely assembled enclosure & provision for inbuilt common remote indication for defective arrestors. 3 nos of encapsulated spark gap & 3 nos of single large block of MOV with series thermal fuse and cooling gel to connect between Line and Neutral and one number arrestor encapsulated spark gap type to connect between Neutral and Earth of following ratings including base element & pluggable arrestors. Nominal voltage 320V 50Hz, Lightning Impulse current is 7KA (10/350μ sec) & Nominal Discharge Current is 30KA (8/20μ sec) for Line to Neutral & Lightning Impulse current is 25 KA(10/350μ sec) & Nominal Discharge Current is 30KA (8/20μ sec) for Neutral to Protective Earth, voltage protection level <1.6 KV ( L to N) & <1.2 KV ( N to E). Operating temp -40º to +80ºC. Response time <25 nano sec. The whole assembly shall be enclosed in a suitable RoHS complied, IP66 & IK06, UV Resistant polystyrene distribution box of necessary size . The installation shall be made complete with necessary fittings and interconnections with suitable sized copper cable. Warranty - 5 years Make: Cape Electric/OBO/DEHN/ABB-Furse/Phoenix

Pluggable type surge arrestor of Type Class C (4 Module Space) as per IEC 61643 -11 for surge voltage protection equipotential bonding. Modular connectable arrestor with dynamic cutoff unit and visual status display for each cartridge. Nominal voltage -230V 50Hz, type single MOV with built in thermal fuse and cooling gel (L to N) & spark gap encapsulated / non exhausting (N to E). Nominal discharge current 20 kA (8/20μ sec) for Line to Neutral & 40 kA(8/20μ sec) for Neutral to Earth, Max discharge current 40 kA (8/20μ sec). Voltage protection level 1.3 KV (L to N). Operating temp - 40º to +80ºC. Response time <25 nano sec, DIN rail mounting type etc complete with back up fuse as required and as directed. The whole assembly shall be enclosed in a suitable RoHS complied, IP66 & IK06, UV resistant polystyrene distribution box of necessary size. The installation shall be made complete with necessary fittings and interconnections with suitable sized copper cable. Warranty - 5 years Make: Cape Electric/OBO/DEHN/ABB-Furse/Phoenix

Surge protection device with Din rail mounting for high speed networks up to 10Gbps to be installed at ethernet switch levels. High quality RJ 45 sockets. Nominal Voltage 48 V, 250MHz, Maximum Continuous Operating Voltage 64 V, Impluse current rating (10/350μS) 1kA, Nominal discharge current (8/20μS) 3 kA, Total discharge current (8/20μS) 20 kA, Voltage Protection Level <100 V@ 3kA . The whole assembly shall be enclosed in a suitable RoHS complied, IP66 & IK06, UV Resistant polystyrene distribution box as necessary. The installation shall be made complete with necessary fittings and interconnections with suitable sized copper cable. Warranty - 5 years Make: Cape Electric/OBO/DEHN/ABB-Furse/Phoenix / EATON

Surge protection device for industrial telecommunications systems with Krone Mounting as per IEC 61643 -21 suitable to protect 10 pair of telephone lines designed to withstand both lightning current and switching surges to be installed at Krone Level. The device should be equipped with 20 gas charge tubes for better performance. U max AC ( Maximum Continuous Voltage ) 120V, U max DC (Maximum Continuous Voltage) 180 V, Total Discharge Current @ (10/350 µs ) imp: 1 KA, Total Discharge Current @ (8/20 µs ):10 KA, Voltage Protection Level <750V. Warranty - 5 years Make: Cape Electric/OBO/DEHN/ABB-Furse/Phoenix/ EATON

Pluggable type surge arrestor Type Class B+C with necessary two module MCB (4 Module Space) in suitable enclosure as per IEC 61643 -11 for lightning current equipotential bonding to be installed at the electric fence incoming power line. Nominal voltage 230V 50Hz. Lightning Impulse Current 12.5 kA (10/350µ sec) for Line to Neutral & 50 kA(10/350µ sec) for Neutral to Earth, Nominal discharge current 30 kA (8/20µ sec) for Line to Neutral & 50 kA(8/20µ sec) for Neutral to Earth, Total Max discharge current 50 kA (8/20µ sec). Voltage protection level 1.40kV (L to N) & 1.50kV (N to E). Operating temp -40º to +80ºC. Response time <25 nano sec (L to N), < 100 nano sec (N to E). The whole assembly shall be enclosed in a suitable RoHS complied, IP66, IK06 & UV Resistant polystyrene distribution box of necessary size. The installation shall be made complete with necessary fittings and interconnections with suitable sized copper cable. Warranty - 5 years Make: Cape Electric/OBO/DEHN/ABB-Furse/Phoenix

Warranty

Data sheets / catalogue

Documents

Compliance statement