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8.A. - Page 115 <br /> Exhibit B. Engineering and Construction Requirements <br /> pullboxes. Minimum conduit size shall be 3A". A tracing/caution tape must be installed in <br /> the trench over all buried conduit. <br /> • Conduit installed using horizontal directional boring (HDB), shall include tracer tape or <br /> traceable conduit.The minimum depth of the conduit shall be per NEC 2011 Article 300.5. <br /> The Seller is responsible for demonstrating that all conduits installed utilizing horizontal <br /> boring meets the minimum depth requirement and is solely responsible for any <br /> remediation costs and schedule impacts if the specification is not met. The HDB <br /> contractor must provide documentation of final depth and routes of all conduit installed <br /> in horizontal bores. <br /> • Conduit installed on building roofs shall not be installed near roof edges or parapets to <br /> reduce visibility.Any conduit penetrations through roof surfaces shall not be made within <br /> five (5) feet of the roof edge to reduce visibility. If conduit is installed on the exterior face <br /> of any building, it shall be painted to match the existing building color. In all cases, the <br /> visible impact of conduit runs shall be minimized and the design and placement of conduit <br /> shall be reviewed and approved by the Buyer as part of Design Review. <br /> • Electro-metallic tubing(EMT)shall be used in indoor,above grade locations,except where <br /> conduit needs to be protected from damage,where Galvanized Rigid Conduit(GRC) shall <br /> be required. EMT shall not be installed underground,outdoors, or embedded in concrete. <br /> EMT shall be cold-rolled zinc coated steel and be manufactured to UL and ANSI standards. <br /> Fittings shall be watertight and malleable gripping ring compression type. Pressure cast <br /> material for nuts of compression ring type fittings and set-screw type connections are not <br /> acceptable. EMT can be used outdoor, exposed to weather with approved UL-listed <br /> fittings. <br /> • Unless specified otherwise by Buyer, Galvanized Rigid Conduit(GRC) shall be used where <br /> to transition from underground to above ground exposed to weather up to 10' above <br /> finished grade where subject to physical damage in exposed areas. GRC shall be <br /> continuous hot-dipped galvanized manufactured per UL and ANSI requirements. Rigid <br /> aluminum conduit is not acceptable. Conduit bodies for use with steel conduit, rigid or <br /> flexible,shall be manufactured per UL requirements and shall be cast metal with gasketed <br /> closures. Fittings for GRC conduit shall be malleable iron or forged steel with cadmium or <br /> zinc coating. Union couplings for joining rigid conduit at intermediate runs shall be of the <br /> same material as the conduit. Couplings shall be threaded concrete-tight to permit <br /> completing conduit runs when neither conduit can be turned and to permit breaking the <br /> conduit run at the union.Set screw connectors are not acceptable. <br /> • All conduits, boxes, enclosures, etc. shall be secured per NEC 690 requirements. <br /> • All conductors shall be insulated copper rated for 600V, minimum. 1000V-rated <br /> conductors shall be used for systems rated as such. DC conductors shall be PV Wire or <br /> USE-2 600V UL Listed Sunlight resistant wire. <br /> • All items shall be U.L. listed and shall bear the U.L. label. <br /> • All spare conduits shall be cleaned, mandrelled, and provided with a pullwire. Spare <br /> conduits shall be required for security cameras for ground mount systems. <br /> Exhibit B Page 15 <br />