TECHNICAL HANDBOOK Electric Utility Application and Reference Guide

FACILITY ELECTRICAL PROTECTION nVent offers a full range of facility electrical protection products designed to protect power utility facilities worldwide. nVent's product offerings include nVent ERICO grounding and bonding accessories, surge and lightning protection products and nVent ERICO Cadweld welded electrical connections. EARTHING/GROUNDING AND BONDING nVent offers an extensive line of grounding and bonding products, which includes ground rods, theft deterrent conductors, mechanical clamps, compression and threaded couplers, chemical ground rods, nVent ERICO Ground Enhancement Material...

Power Generation POWER GENERATION FACILITIES Traditional power generation facilities have either been coal-fired, gas-fired, nuclear, diesel or hydro-powered. Modern alternative power generation facilities can include geothermal, bio-gas, wind or solar. nVent ERICO brand of lightning protection systems have been used to provide lightning protection to the whole host of facilities in a unique manner. nVent ERICO grounding and bonding solutions can provide a complete system for the grounding and bonding of any of these facilities. POWER GENERATION PLANT nVent ERICO System 3000 Lightning Protection...

Substation Earthing/Grounding and Lightning Protection SUBSTATION EARTHING/GROUNDING AND LIGHTNING PROTECTION The conceptual design of a ground grid at a substation is summarized by the points below and depicted on pages 4 and 5. a) continuous loop conductor should surround the perimeter to A enclose as much area as practical. Under Standard IEEE® 80, this loop conductor is placed 3 ft (or 1 meter) outside the fence line. This measure helps to avoid high current concentration and high gradients both in the grid area and near the projecting cable ends. Enclosing more area also reduces the resistance...

Substation Earthing/Grounding and Lightning Protection SURGE PROTECTION FOR SCADA-CONTROLLED EQUIPMENT Electronic equipment operating within a substation environment is particularly subject to electrical disturbances such as switching, electrical noise, ground potential rise and occasional induced or direct lightning impulse. Surge protection is an extremely costeffective investment for electronic substation equipment, because: • Each site’s operation is critical to the quality supply of electrical power • Downtime costs are significant Fence Post Clamp FC078 Connection to Ground Grid Cadweld...

Power Transmission and Distribution POWER TRANSMISSION AND DISTRIBUTION THEFT DETERRENT CABLES The grounding of facilities associated with the distribution of power is sometimes not given the same level of thought and design scrutiny as is given to the substations. nVent has a complete range of products that address this need. nVent offers several solutions for areas where traditional copper cables are prone to theft. EARTHING/GROUNDING CONNECTIONS Grounding connections are vital to the proper operation and integrity of the electrical system. nVent offers a range of mechanical connections, including...

Power Transmission and Distribution DISTRIBUTION POLE Transformer Tank Clamp TGC 20 TRANSMISSION TOWER Transformer Tank Clamp CC207 nVent ERICO Hammerlock Copper-bonded Ground Rods Theft Deterrent Composite Cable Ground Rod Clamp Compression Coupling Cadweld Connections Utility Pole Ground Plate Utility Pole Bottom Plate EGP100HL Cadweld Plus One Shot Ground Enhancement Material (GEM) Utility Pole Plate

Along with our main systems and components for the utility industry, nVent offers a wide range of accessories to assist in grounding, bonding and lightning protection needs. GROUND RODS AND GROUND ROD COUPLERS Complete range of earth/ground rods, and couplers, including copper bonded rods of various size and secification. For complete range and details please visit nVent.com/ERICO. CADWELD CADWELD ONE SHOT Complete range of Cadweld ONE SHOT applications for permanent connections from wire to rod, or wire to wire. For complete range and details please visit nVent.com/ERICO. GROUND ROD CLAMPS NVENT...

Polymer inspection well 12” X 12” X 8.5” deep Polymer inspection well 6” X 8.5” X 8.5” deep Polymer inspection well 14" X 23” X 18" deep High density polyethylene inspection well 10" round X 10" deep High density polyethylene inspection well 14" round X 18" deep Polymer inspection well 13" X 13” X 12" deep Polymer inspection well 13" X 13” X 18" deep Polymer inspection well 13" X 13” X 26" deep GROUND PLATE ELECTRODES TRANSFORMER TANK AND VICE CLAMPS UGP719 Utility ground plate 7.5" X 19.25" UGP738 Utility ground plate 7.5" X 38.5" EGGP Galvanized steel ground plate, without connector EGGPC Galvanized...

Design Assistance nVent provides a high level of application engineering and design assistance to the users of its products. This team carries out modeling of a lightning protection system using modern software tools that use complex algorithms to model lightning strikes in a more accurate way than traditional methods. nVent offers a set of drawings of details using our products that can be used in the customers’ construction documentation. Software is available for public use that will assist with the selection of Cadweld connections and the design of grounding systems using GEM. Equi-Touch...

Applicable Standards for Design of Earthing/Grounding Systems USA, AUSTRALIA, ASIA The IEEE® earthing/grounding and lightning protection standards in the U.S. are used quite commonly around the world, especially in Asia and Australia. The IEEE 80 Standard for Safety in AC Substation Grounding is the most common document used to assist with the design of a system. Many countries have guides written either by power utilities, industry associations or standards to complement IEEE standards. The IEEE 80 Standard requires connections that are used in substations to pass all the tests stipulated in...