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DONNELLY ENGINEERING ELECTRICAL <br /> D. Shop Drawing: Submit all conductor types in shop drawing form. Each conductor shall be identified <br /> as to location in the lightning protection system. <br /> 2.4 PENETRATIONS AND SPECIFIC INSTALLATIONS <br /> A. General: Roof penetrations shall not be allowed <br /> B. Metal Pan Deck: Conductors shall not be installed in contract with metal pan ceiling of floor supports. <br /> C. Above Ceilings: No exposed conductors are allowed above ceilings. <br /> i <br /> D. Steel Joists: No conductors shall be connected to steel joists or beam supports. <br /> E. Steel: Steel columns shall not be used as a down conductor path. <br /> 2.5 COMMON GROUNDING <br /> A. General: Common grounding of all ground mediums within the project building shall be made by <br /> interconnecting with main size conductors and heavy duty fittings. <br /> B. Bonding: Grounded metal bodies located with the required bonding distance (as determined by the <br /> bonding distance formulas in NFPA 780) shall be bonded to the system using bonding conductors, and <br /> fittings. Bond to rebar utilizing exothermic braze connections. <br /> 2.6 GROUND TERMINATIONS <br /> A. Ground Rod: A ground rod termination shall be provided for each down conductor and shall consist of <br /> a 3/4" inch x 10 feet copper-clad ground rods. All ground rods shall be located 2 feet below finished <br /> grade and 2 feet from the foundation wall and shall extend a minimum of 30 feet vertically into the <br /> earth. 5 OHMS maximum resistance is required measured at the rod. No exceptions. <br /> I <br /> B. Building Steel: Perimeter steel columns shall be bonded at intervals averaging not more than 60 feet <br /> apart. Do not use steel columns for substitution of down conductors. Down conductors shall be <br /> provided in addition to steel column bonding at the base of the structure. Steel columns shall be <br /> connected using bonding plates having 8 square inches of surface contact area. Conductors from the <br /> bonded connections to the ground termination shall be full size Class II copper lightning conductors. <br /> I <br /> 2.7 FASTENERS <br /> A. General: Conductor fasteners shall be manufactured of a material which is compatible with the type of <br /> conductor being supported. Fasteners shall be of sufficient strength to properly support each conductor <br /> ' or terminal base, etc. <br /> 2.8 ACCEPTABLE MANUFACTURERS <br /> A. Manufacturers: Equipment manufactured by Thompson Lightning Protection, Inc., Harger Lightning <br /> Protection or Heary Brothers shall be considered acceptable. <br /> PART 3 -EXECUTION <br /> 3.1 INSTALLATION OF CONDUCTORS <br /> A. General: Conductors shall be installed to interconnect all air terminals to the system of grounding <br /> electrodes, and in general provide a minimum of at least two paths to ground from any point on the <br /> Heartland Health Care Center of Zephyrhills-3181 16670-3 DE No 217032 <br /> 38220 Henry Drive,Zephyrhills, FL 33542 Pending Emergency Rule 59A-4.1265 <br />