In some cases, particularly when additions to an existing building are involved, it may be necessary to place downleads and grounding inside and under a structure. Each downlead cable shall terminate to a grounding electrode connection dedicated to the lightning protection system. Bringing all building grounded systems to the same potential at grade is the first step toward protecting internal components and people from lightning. USA The global lightning protection products market was estimated at USD 4.79 billion in 2021 and is expected to reach USD 7.7 billion by 2030, poised to grow at a compound annual growth rate (CAGR) of 6 % during the forecast period 2021 to 2030. A very effective method of preserving and protecting prize trees. Lightning protection for trees is one of the fastest growing segments of IPC and our industry. Where all these systems are bonded to a continuous metallic water line system, only one connection is required between the lightning protection grounding and the water line. cofounder of East Coast Lightning Equipment: "Partial protection is as good . Combinations of materials that form electrolytic couples in the presence of moisture shall not be used. System materials must be coordinated with the structural materials in use including flashings, copings, ventilator housings, various roofing systems to maintain the moisture envelope for the intended life of the building. The most effective systems consist of an extensive wire network laid on the surface of the rock surrounding the building to which the down conductors are connected. All strike termination devices must have a minimum of two paths to ground to split the lightning along multiple paths, so the smallest building must have two downleads minimum. Internal arcing between grounded systems is also a function of how many paths we have from the roof lightning protection system to the grounding system. This will be realized by placing grounding devices at the outer extremities, such as corners and outside walls of the structure, and avoiding as far as possible the flow of current under a building. System interconnection may be made at multiple points near structure entrances for systems, or one hard connection at a ground bar may be used. Our tree lightning protection systems meet the ANSI (American National Standards Institute) A300 Standards, which were adopted by The Tree Care Industry Association. In the second case, it would be impossible to make a good ground connection in the ordinary sense of the term, because most kinds of rock are insulating or at least of high resistivity; hence, in order to obtain an effective ground, more elaborate means are necessary. Any other independently grounded building system in close proximity to lightning protection components would be at 0 volts, so the natural tendency is for some or all the lightning to leave our current carrying system and flash over to the alternate ground path. A lightning protection system is composed of three main components: Rods or 'Air Terminals' - The small, vertical protrusions designed to act as the 'terminal' for a lightning discharge. In very tall trees, a lightning rod is also sometimes installed. It is also possible that a neighboring process stack will emit a substance carried by the wind toward your system components that works to degrade materials at a much faster than expected rate. In some cases, lightning struck trees must be removed due to structural degradation caused by the heat and mechanical forces generated by the electrical charge. The Lightning Protection Institute (LPI) adopts the latest edition of theNFPA 780 Standard as its reference document for system design. Henan Yangbo Lightning Protection Technology Co., Ltd., Experts in Manufacturing and Exporting Lightning Arrester, Lightning Tower and 0 more Products. Lightning-Protection Equipment | McMaster-Carr (630) 833-0300 Email Us Order Order History Component Lightning Wire Rod Base Rod Bonding Plate Wire Guide Parallel Connector Wire Clamp Joint Compound Copper-to- Aluminum Connector Material Aluminum Copper Brass Wire Gauge 14 16 OD 3/8" 7/16" Specifications Met UL 96 UL Listed RoHS (Restriction of Here is a little piece of history about the Anaconda Smoke Stack . Air terminals are more commonly known as lightning rods. Lightning Protection **DUE TO INCREASED METAL COSTS A 39% METAL MARKET SURCHARGE HAS BEEN ADDED TO ALL LIGHTNING PROTECTION PRODUCTS** Standard or mini-standard cable extends to the top of the tree and standard short or long points are attached to the end of the cable and nailed to tree. Bonding together of grounded systems is typically accomplished with smaller fittings and cables or wire runs on roof areas of structures. The Standards are under continuous review for new products, construction techniques, and validated scientific developments to address the lightning hazard. American Arborist Supplies stocks professional quality tree care products, tree climbing equipment, safety equipment, and arborist supplies FAQ; Policy; My Account; Register; Log-In; Log-Out; Wish List; View Cart (0) . Lightning Damage to Landscape Palms. A ground loop encircling a structure interconnecting all downlead cables at their base and/or grounding electrode devices is the best way to equalize potential for an entire lightning protection system. **DUE TO INCREASED METAL COSTS A 39% METAL MARKET SURCHARGE HAS BEEN ADDED TO ALL LIGHTNING PROTECTION PRODUCTS**. hbbd```b``^"CA$"9i`5/ M0Y"ULJ $zGAlHi2D 60wh@"@y0 x endstream endobj startxref 0 %%EOF 144 0 obj <>stream Strike termination design configuration is the first key element to providing a complete lightning protection system. View a list of ISA Certified Arborists. Ground cable should be buried to a sufficient depth to avoid displacement or damage. Low profile structures may only need interconnection of systems near the roof level when they are in close proximity to lightning protection system components. js = d.createElement(s); js.id = id; On more critical structures, like those containing explosives or flammable liquids and vapors, the model is reduced to a 100 feet (30 meters) radius sphere that covers in excess of 98% of recorded lightning strikes. The final product must include the bonding together of separate grounding electrodes of different systems. Most devices have two or more internal elements to accomplish the task, and react at something around 150% of the standard operating voltage of the system. For longer length Lightning Rods add $1.00 per inch in copper .80 in aluminum. Wherever practical, connections to grounding electrodes should be made exterior to the foundation wall or far enough away to avoid buried footings, pipe caps, etc. These may include listed products for the purpose, or in some cases stainless steel components. Avoid windows, doors, porches, and concrete. Copper alloy materials are not injurious to trees. A zone of protection exists from any vertical strike termination device and more than that from a vertical fully protected building level. As with any other building element made of similar materials, oxidation or corrosion of components would not be expected under normal conditions for an extended period, or the normal lifetime of the structure. The taller the structure and the more severe the planar changes (like a vertical wall to a horizontal flat roof) the greater the opportunity for attachment at thesecritical junctions. Includes lightning rod. Stephen H. Brown, Douglas Caldwell, and Ralph Mitchell 2. Although cable conductors are required for downleads in poured concrete construction, the required bonding of the rebar helps create a similar network of protection in high rise construction projects. Internal to every modern structure, we have a variety of devices that operate at low voltages including circuit boards truly not designed to operate at the 150% let-through level of entrance only SPDs. This is a specialized industry with its own Standards designed purpose specific to deal with natures great random destroyer. Lightning protection systems should be inspected annually to ensure they are intact. Based on sound engineering principles, research, records of tests and field experience, a complete protection system is expected to create personal and structural safety from lightning and its secondary effects. 1.1 Scope. Strikes can be up to a million volts . In addition,we have on staff an LPI certified master installer with over 36 years of experience in the industry. $8.86. Most of these property losses could be minimized, if not eliminated, through the implementation of proper lightning protection for structures. The next step is to provide protection on circuits associated with electrical, communication, and/or data lines that can transmit lightning into a structure. A proper system of strike termination devices accounts for these realities by using air terminals in a configured pattern designed to use the buildings points of natural ionic accumulation to pull lightning into the protection system. Conductor Cables 3. Historic trees, those in feature locations in the landscape, and those close to structures are also candidates for lightning protection. All rights reserved. Our commitment to quality coupled with our aggressive pricing ensures you the best value on top-of-the line lightning protection, regardless of your application. Order Toll Free (877)-866-3189 Toll FREE 877-866-3189 (Local #410 914-5589) or you can Fax 410-734-0215 or Mail your check with a printed ORDER FORM to: LIGHTNING ROD PARTS, LLC 3401 Old Level Road Havre de Grace, MD 21078 Warehouse Locations in; MARYLANDARIZONAMISSOURI All orders shipped by UPS or USPS. NFPA 780. This is the specific Standards requirement protect against destruction of the building. Lightning cable conductors may be concealed below or within construction in attics and wall spaces, or in concrete pours because the speed of lightning lowers the potential for heating of the conductors to the spark ignition temperature of building materials to well below damaging levels. var js, fjs = d.getElementsByTagName(s)[0]; . NFPA documents like the National Electrical Code (NEC NFPA 70), National Fuel Gas Code (NFPA 54), and Uniform Fire Code (NFPA 1) are developed by the committee process to review acceptance of new safety information on specific fire related subjects. Check out the Summer 2022 LPI Newsletter! Current carrying system components must be highly conductive. :+2&vA%E2.^M>x yOoq =,dYMTtM-S+%vyYY0U?V4m@q38XQxZL{ZMP-c05y P'Rh-GvH_)cs4hetfene*Cvh$n3ZaNBfN}=^6^vm,$18e =#uC9:cWFlt%A8uM[;`nKl1#.Y. js.src = "//connect.facebook.net/en_US/sdk.js#xfbml=1&version=v2.0"; Distributor for Preferred Lightning Protection, Inc. | Harger Lightning & Grounding | Robbins Lightning | East Coast Lightning Equipment, Inc. | Independent Protection Co., Inc. | AllG Fabrications | Nvent/Erico Within this cone, lightning bolts will be drawn to the rod. And according to the National Weather Service, the average strike has an average magnitude of nearly 30,000 Amps.. Different ground systems are illustrated to meet local conditions. var js, fjs = d.getElementsByTagName(s)[0]; Under these favorable conditions, providing adequate means to dissipate the energy of a flash without chance of serious damage is a simple matter. 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