GENERAL INSTALLATION OF LIGHTNING ARRESTOR ON THE ROOF TOP OF ADMINISTRATIVE BLOCK AND DIESEL GENERATOR SHED AT KERALA BOOKS AND PUBLICATIONS SOCIETY KAKKANAD IN ERNAKULAM DISTRICT Lightning Protection Works-General Electrical Work

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OD16790/2025-2026:Supply and laying of Round Aluminium Conductor conforming to DIN EN 62561-2 (VDE 0185-561-2), VDE 0185-305 (IEC 62305), Semi-hard (E-AlMgSi0.5 corresponds to DIN 48801) etc. The conductor shall have the specifications of Cross-section 50Sq.mm, Diameter 8mm, Dimension 8mm, Dimension D 8mm, Length Tolerance + or -5%, Material Aluminium, Material Property Semi-hard, Number of Individual Wires 1 Nos etc. complete as required

OD17373/2025-2026:Supply and installation of Roof Conductor Holder in Tiled, Slated and Corrugated Roofs at required intervals having maximum spacing at a distance up to and including 0.70m using Stainless Steel bolts, nuts, round and spring washers/screws or pasting using existing gum etc. The Holder shall have the specifications of Material Stainless Steel, Conductor Fastening Type with Clamp Clip, Cable Diameter from 8mm to 10mm, Mounting Type Screw-on, Mounting Height 21mm, Fit Rd 8mm to 10mm, Material of the Holder Plastic, Material of the Support Rustproof Steel (V2A) etc. complete as required

OD17416/2025-2026:Supply and installation of Roof Conductor Holder in Parapet Wall at required intervals having maximum spacing at a distance up to and including 0.70m using Stainless Steel bolts, nuts, round and spring washers/screws or pasting using existing gum etc. The Holder shall have the specifications of Cable Dimension 8mm to 10mm Round, Colour Brey, Conductor Fastening Type with Clamp Clip, Dimension 30mm, Holder Fastening Type Drill Hole with M-thread, Material of Base, Crossbar and Holder Polyamide, Mounting Height 30mm, Thread Metric 8 etc. complete as required

OD23062/2025-2026:Supply and applying Gum in 300ml Cartridge having good adhesion to many substrates and that is compatible with suitable paint systems etc. The Gum shall have the specifications of Grade Gun-Grade, Technology Silane Modified Polymer, Type Sealant, Components One-Component, Cure Humidity, Application Assembly, Appearance White, Grey, Black, Consistency Pasty, Thixotropic, Odor Characteristic etc. complete as required

OD17475/2025-2026:Supply and installation of Vertical Air Terminal of 1m length on the flat surface conforming to IS/IEC 62305, IEC 62561 with all mounting accessories including Stainless Steel bolts, nuts, round and spring washers/screws or pasting using existing gum etc. The Vertical Air Terminal shall have the specifications of Diameter 150mm, Dimension RD10, Length 1000mm, Material Aluminium, Having Quick mounting of the air-termination rod in the base using plug technology and Vario quick connector 249 etc. complete as required

OD19160/2025-2026:Supply and installation of Vario Quick Connector for T, Cross and Parallel Connectors conforming to DIN VDE 0185-305 (IEC 62305) with all mounting accessories including Stainless Steel bolts, nuts, round and spring washers/screws or pasting using existing gum etc. The Connector shall have the specifications of Dimension 40 x 40mm, Lightning Current Carrying Capacity H/100kA, Material Aluminium, Round Conductor Diameter Conductor 1 and 2 - Maximum 10mm, Round Conductor Diameter Conductor 1 and 2 - Minimum 8mm, Suitable for Connection Round Conductor 8mm to 10mm, Type of Connector Multipurpose Connection Clamp, Type of Fastening Screw High Grade Stainless Steel Hexagonal Bolt of M10 x 30 etc. complete as required

OD22971/2025-2026:Supply and installation of Expansion Piece for equalizing temperature-related length changes necessary on conductor lengths over 20m with all mounting accessories etc. The Expansion Piece shall have the specifications of Material Aluminium, Suitable for Round Conductor Rd 8-Al etc. complete as required

OD19015/2025-2026:Supply and installation of Lightning Strike and Surge Counter tested according to VDE 0185-561-6 (IEC 62561-6) etc. complete as required. Lightning Strike and Surge Counter shall have the specifications of constant monitoring function in order to notice if any lightning has struck the Lightning Protection System, measurement and permanently saving of pulse currents, Saving and Display of Time and Date, Cable clip for round conductor or flat conductor, Direct mounting on the Conductor or the PE Conductor of the Surge Protective Device, LCD Display, Internal Lithium Batteries having long lifespan, Material Plastic, Maximum Measuring Range 10kA, Maximum Measuring Range 1kA, Number of Sensors 1, Maximum Permitted Temperature Range 60 Deg.C, Minimum Permitted Temperature Range -20 Deg.C, Protection Rating IP65 etc. complete as required

OD16788/2025-2026:Supply and installation of IP 65 Thermoplastic Polycarbonate Test Link Enclosure with Test Link for Lightning Protection System fixed with necessary supports and Stainless Steel bolts, nuts, round and spring washers or screws conforming to IS / IEC 62305-3:2010 and Electrical Inspectorate Standards etc. The enclosure shall fulfil the standards of IEC 60529, Environment Friendly, Recyclable, Chemical Resistant, UV Resistant, Double Insulated, Shock Proof, Glow Wire Tested 960 Deg.C, Fire Retardant, Self Extinguishing etc. complete as required 125 x 167 x 82mm (Width x Height x Depth) or Other Required Size

OD20416/2025-2026:Excavation of all types of soils for the laying of GI / DWC HDPE / RCC / PVC / Conduit Pipes, Earthing conductors to the required width and depth up to and including 0.5m and back filling etc. complete as required. (The trench dimensions and specifications shall conform to CPWD / PWD, Electrical Inspectorate and KSEBL Standards)

OD83870/2025-2026:Supply and installation of Trapezoidal One Compartment PVC Duct of the following sizes with all necessary accessories and laying in existing earth excavated trenches, built up trenches, clamping in built up trenches / walls using Stainless Steel bolts, nuts, round and spring washers or screws including all minor civil works etc. complete as required 60 x 25mm (Width x Depth)

OD20420/2025-2026:Supply and installation of 10 kg/cm2 PVC Pipes of the following sizes with all necessary accessories and laying in existing earth excavated trenches, built up trenches, clamping in built up trenches / walls using Stainless Steel saddles and screws of which spacing between 30cm to 60cm including all minor civil works etc. complete as required Up to and including 50mm

OD18912/2025-2026:Earthing with UL Listed and CPRI Tested Copper Bonded 20mm dia, 3.0m long Rod having 250 microns coating thickness tested as per IEC 62561-2 and providing Masonry Enclosure with Concreate Slab Cover or Heavy Duty FRP Enclosure with Cover Plate having 5000kg load bearing capacity including sufficient earthing compound etc. complete as required

OD20715/2025-2026:Supply of Hot Dip Galvanized earthing conductors of the following sizes conforming to DIN EN 62561-2 (VDE 0185-561-2), VDE 0185-305 (IEC 62305) having Zinc coating greater than or equal to 500 g/m2 (approximately 70 micrometre in mean value) and laying in existing earth excavated or built up trenches, clamping in trays, walls, racks, risers, trusses etc. using heavy duty Aluminium / GI Flats of which spacing between 35cm to 65cm and pulling through pipes including all minor civil works, including connecting / terminating with necessary welding, grinding and finishing with paint/abrasives etc. or existing Stainless Steel bolts, nuts, round and spring washers as per Electrical Inspectorate and IS Standards etc. complete as required. 30 mm x 3 mm GI Strip

OD18982/2025-2026:Supply and installation of Cross Connector for Flat Conductor conforming to VDE 0185-305-3 (IEC/EN 62305-3) with all mounting accessories including Stainless Steel bolts, nuts, round and spring washers/screws or pasting using existing gum etc. The Connector shall have the specifications of Dimension 30mm, Lightning Current Carrying Capacity H/100kA, Material Steel, Suitable for Connection Flat Conductor, Surface Hot Dip Galvanized, Type of Connector Cross-Connectors, Round Conductor Diameter Conductor 1 and 2 - Maximum 10mm, Round Conductor Type of Fastening Screw High Grade Stainless Steel Hexagonal Bolt of M6 x 20 etc. complete as required

OD20335/2025-2026:Supply and installation of Universal Connection Clamp/Clip for Earth Rods to connect Flat Conductors with all mounting accessories including Stainless Steel bolts, nuts, round and spring washers/screws etc. The Connection Clamp/Clip shall have the specifications of Dimension 20mm for Earth Rods of 20mm, Material Stainless Steel etc. complete as required

OD20625/2025-2026:Supply and installation of Lightning and Switching Current Surge Type 1 + 2 Combination Surge Arrestor having Plug-in arrester than can be separated from base without tools and Current Cut-Off in base having Thermal and Dynamic Cut-Off Unit and Visual Fault Display, High Current Conductivity and long service life etc. The Combination Arrestor shall have the specifications of Arrester Surge Current (8/20 micro.sec) [Total], Response Time Less than 25ns, Operating Temperature Maximum 80 Deg.C, Operating Temperature Minimum -40 Deg.C, Lightning Surge Current (10/350 micro.sec) 7kA, Maximum Continuous Voltage AC 320V, Maximum Continuous Voltage DC 420V, Maximum Conductor Cross-Section (Rigid Single/Multiwire) 35 Sq.mm, Minimum Conductor Cross-Section (Rigid Single/Multiwire) 2.5 Sq.mm, Lightning Protection Zone LPZ 0 and LPZ 2, Maximum Mains-Side Overcurrent Protection 160, Maximum Back-up Fuse 160A, Maximum Discharge Current (8/20 micro.sec) 50 kA, Nominal Discharge Current (8/20 micro.sec) 30kA, Nominal AC Voltage (50/60 Hz) 320V, Number of Poles 1, Protection Rating IP20, Protection Level Less than or Equal to 1, 3, Signalling on Device Visual, SPD to EN 61643-11 Type 1+2, SPD to IEC 61643-1 Class I+II etc. complete as required. [All the connections shall be done using 16 Sq.mm FRLS (Flame Retardant Low Smoke) or HRFR (Heat Resistant Flame Retardant) PVC insulated single core copper conductor cables with less than 0.45m in length]

OD20626/2025-2026:Supply and installation of 5V DC Surge Protection Device for the use in Measuring, Control and Regulation Systems etc. The Combination Arrestor shall have the specifications of Basic, Medium and Fine Protections, Two-stage protection circuit with high lightning current carrying capacity, High transmission frequency up to 100 MHz, Suitable for all bus systems, With installation-friendly, screwless connection terminals, Maximum Cable Cross-Section (Flexible/Rigid/Multiwire) 2.5 Sq.mm, Minimum Conductor Cross-Section (Flexible/Rigid/Multiwire) 0.14 Sq.mm, Number of Poles 2, Insertion Loss Less than or equal to 3dB, Total Discharge Current (10/350) D1: 6, Total Discharge Current (8/20) 18kA, Cut-Off Frequency 100 MHz, Maximum Continuous AC Voltage 4V, Maximum Continuous DC Voltage 6V, Lightning Impulse Current 3kA, Insulation Resistance Greater than 100 M.Ohm, Category Type 1+2+3 / D1+C2+C1, Lightning Protection Zone LPZ0 and LPZ3, Mounting Type DIN Rail 35mm, Nominal Discharge Current (8/20 micro.sec) 9kA, Nominal AC Load Current 0.32A, Nominal DC Load Current 0.45A, Nominal Voltage 5V, Testing Standard IEC 61643-21, Protection Rating IP20, Protection Level Wire-Wire Less than 90V, Protection Level Wire-Earth Less than 650V, Series Resistance Per Wire 2.2 Ohm + or - 10%, SPD to IEC 61643-21 Class I+II+III / D1+C2+C1, Plug-In System Terminal, Maximum Permitted Temperature Range 80 Deg.C, Minimum Permitted Temperature Range -40 Deg.C etc. complete as required. [All the connections shall be done using 2.5 Sq.mm FRLS (Flame Retardant Low Smoke) or HRFR (Heat Resistant Flame Retardant) PVC insulated single core copper conductor cables with less than 0.45m in length]

OD20652/2025-2026:Supply and installation of 24V DC Surge Protection Device for the use in Measuring, Control and Regulation Systems etc. The Combination Arrestor shall have the specifications of Basic, Medium and Fine Protections, Two-stage protection circuit with high lightning current carrying capacity, High transmission frequency up to 100 MHz, Suitable for all bus systems with installation-friendly, screwless connection terminals, Maximum Cable Cross-Section (Flexible/Rigid/Multiwire) 2.5 Sq.mm, Minimum Conductor Cross-Section (Flexible/Rigid/Multiwire) 0.14 Sq.mm, Number of Poles 2, Insertion Loss Less than or equal to 3dB, Total Discharge Current (10/350) D1: 6, Total Discharge Current (8/20) 18kA, Cut-Off Frequency 100 MHz, Maximum Continuous AC Voltage 19V, Maximum Continuous DC Voltage 28V, Lightning Impulse Current 3kA, Insulation Resistance Greater than 100 M.Ohm, Category Type 1+2+3 / D1+C2+C1, Lightning Protection Zone LPZ0 and LPZ3, Mounting Type DIN Rail 35mm, Nominal Discharge Current (8/20 micro.sec), Nominal AC Load Current 0.32A, Nominal DC Load Current 0.45A, Nominal Voltage 24V, Testing Standard IEC 61643-21, Protection Rating IP20, Protection Level Wire-Wire Less than 120V, Protection Level Wire-Earth Less than 650V, Series Resistance Per Wire 2.2 Ohm + or - 10%, SPD to IEC 61643-21 Class I+II+III / D1+C2+C1, Plug-In System Terminal, Maximum Permitted Temperature Range 80 Deg.C, Minimum Permitted Temperature Range -40 Deg.C etc. complete as required. [All the connections shall be done using 2.5 Sq.mm FRLS (Flame Retardant Low Smoke) or HRFR (Heat Resistant Flame Retardant) PVC insulated single core copper conductor cables with less than 0.45m in length]

OD83871/2025-2026:Preparation and submission of application, drawings and obtaining Scheme Approval of Lightning Protection System from Electrical Inspectorate. (*All Statutory fees shall be remitted by the Client / Consumer or it shall be reimbursed on the submission of supporting documents)

OD83872/2025-2026:Preparation and submission of completion report, arranging inspection and obtaining Sanction of Lightning Protection System from Electrical Inspectorate. (*All Statutory fees shall be remitted by the Client / Consumer or it shall be reimbursed on the submission of supporting documents)

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