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2.4. SEISMIC BRACING REQUIREMENTS <br />2.4.1. Scope: Brace all communications racking, frames, and systems to <br />withstand lateral and vertical forces that result from earthquake. <br />2.4.2. Bracing shall meet requirements for area designated by the Uniform <br />Building Code as having a seismic risk Zone Four rating. <br />2.5. LADDER RACK <br />2.5.1. Install per scope of work and manufacturer's instructions and <br />specifications. <br />2.5.2. When "L" brackets are used to support ladder rack clamp ladder rack to <br />"L" brackets. <br />2.5.3. Support ladder rack at 5 -ft. intervals and within 18 inches of all adjoining <br />sections and end points. <br />2.5.4. Cut ladder rack square and free of burrs. <br />2.5.5. Bond together all ladder rack segments and bond entire assembly to <br />approved telecommunications ground using manufacturer's bonding kit and <br />#6 AWG Green copper conductor. <br />2.6. EQUIPMENT RACKS <br />2.6.1. Install equipment racks as indicated in the scope of work <br />2.6.2. Mount racks to floor using the manufacturer instructions and <br />specifications. <br />2.6.3. Install power outlet strips as specified in the scope of work. <br />2.6.4. Bond all equipment racks together using manufacturer approved <br />assemblies and bond to an approved telecommunications ground using <br />manufacturer's bonding kit and #6 AWG Green copper conductor. <br />2.7. PATCH PANELS, BACKBOARDS, PUNCH BLOCKS <br />2.7.1. Install patch panels, backboards and punch blocks as indicated in the <br />scope of work. <br />2.7.2. For Category 5e patch panels, install horizontal patch cord management <br />Page 12 of 24 <br />