NIIST/65/ESD-E/E-NIT (2)/2019

Amount

LIGHTNING ARRESTOR

Supply of Collection of Volume method upgraded of Convention Lightning Protection system, Interceptor MK-IV SS. Non-corroding made of stainless steel as per IEC61024 designed and tested to meet UL-96. The Air terminal shall be placed using the " Collection Volume Method" Field Intensification Method" placement methodology as specified in IEEE-998. The material of Air Terminal shall be non-corroding made of stainless steel. Provide the Lightning protection system with a Lightning Protection Coverage Design( 3-D Dimension view) . Air terminal is not dependant upon batteries or external power supply. (DETAILED TECHNICAL SPECIFICATION SCOPE OF WORK FOR ENHANCED LIGHTNING PROTECTION USING COLLECTION VOLUME METHOD, GIVEN IN E-TENDER DOCUMENT :Work Item Documents:Document Type:Tender Documnet: SI No: 2 )

Supply of Alu. Supporting Mast with a dia of 60mm and SS Cable ties, UNC Adaptor, Copper Terminal Strip and Foundation Bolt/Nut.

Supply of 2 Run of 8mm Copper Bonded Steel Conductor (CBSC)with fixings. ERICO CU‐BOND Round Conductor is a cost‐effective alternative to 100% copper conductor.The copper surface of the conductor provides high conductivity and corrosion resistance properties.The conductor is well‐suited as a lightning protection conductor when applied in accordance with the IEC 62305‐3 Edition 2.0 standard.

Maintenance Free Earthing System for Lightning Arrestor

Supply of Single rod Earthing System for Corrosive resisitance, Molecular Bonded with copper to High Strength Steel Cores, 3 Nos of Earth Rods size of (5 feet x 5/8 inc. diameter) , Copper Bonded Steel Rod especially designed for Electrical Grounding System (minimum Copper Bonding shall be 250 microns) Non - Corrosive, Non Soluble, Highly Hygroscopic Electrical Conductive, Treatment with using (GEM) - 4 Bags ( Per Bag -11.33 Kgs ) Ground Enhancement Material - Conforms IEC 62651-7 Standard (accredited lab test report conforms to IEC 62651-7 shall be submitted) The GEM shall be have Resistivity of less than 20 Ohm-cm in its set form and 1 number clamp for terminal connection (UL certificate for electrode shall be submitted ). Interconnection by using copper strip Size of (50x 0.5 mm)- 15 Mts with Connecting Earth RodClamp - 3 Nos.

Supply of Lightning Event Counter - Non resettable mechanical counter Non electronic, wihtout battery or external power source, IP67 enclosure, triggering impulse <2000A 8/20 micro second

Maintenance Free Earthing System for Existing Lightning Arrestor

Supply of Single rod Earthing System for Corrosive resisitance, Molecular Bonded with copper to High Strength Steel Cores, 3 Nos of Earth Rods size of (5 feet x 5/8 inc. diameter) , Copper Bonded Steel Rod especially designed for Electrical Grounding System (minimum Copper Bonding shall be 250 microns) Non - Corrosive, Non Soluble, Highly Hygroscopic Electrical Conductive, Treatment with using (GEM) - 4 Bags ( Per Bag - 11.33 Kgs ) Ground Enhancement Material - Conforms IEC 62651-7 Standard (accredited lab test report conforms to IEC 62651-7 shall be submitted) The GEM shall be have Resistivity of less than 20 Ohm-cm in its set form and 1 number clamp for terminal connection (UL certificate for electrode shall be submitted ). Interconnection by using copper strip Size of (50x 0.5 mm)- 15 Mts with Connecting Earth RodClamp - 3 Nos.

Installation, Testing & commissioning of Collection of Volume method Air terminal with supporting Aluminum Mast & Guy support, Laying 2 Run of Copper Bonded Steel Conductor with providing necessary fixing support and Installation of maintenance free earthing system treated with GEM. Installation of Lightning Event counter in the vertical position.

Removing & Re-Installation of Existing ESE terminal in the desire location, as per the instructions of Engineer, providing Guy wire support and Install the Maintenace Free earthing system for existing terminal.

CHITRA ELECTRICAL CONTROLS PVT LTD

SPIKE POWER PROTECTION SYSTEMS AND TECHNOLOGIES