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presenting the possibility of electrocution and disruption of local services Personnel entering <br /> into excavations are also at risk of asphyxiation or exposure to any airborne contaminants that <br /> may accumulate in low-lying areas Where water is seeping into or accumulating in <br /> excavations, there is an increased slip, tip and fall hazard, as well as a drowning hazard <br /> 3.2.5 Maintenance/Troubleshooting <br />' Equipment and machinery maintenance and troubleshooting work can expose project workers <br /> to contaminated materials and other hazards Troubleshooting electrical and mechanical <br /> equipment can expose workers to shock hazards, the potential for being struck by or caught in <br /> moving parts of machinery and crushing or pinch hazards <br /> 3.2.6 Tool Use <br /> It is anticipated that a variety of tools may be required during installation and troubleshooting <br /> activities. Asphalt and possibly cement will be cut or broken through prior to drilling, which <br /> will require the use of either "cookie cutter" press type cutters or wet-method concrete saws <br />' Both methods expose workers to multiple hazards, including lacerations, getting caught in or <br /> on moving machinery and being injured due to accidental energizatxon. <br /> Use of both hand and power tools may expose workers to cuts, lacerations or puncture <br /> wounds of inadequate hand protection is win or tools are improperly stored Damaged hand <br /> tools may also expose employees to injuries from shattered tools and flying debris, and <br /> improperly stored tools may present a trip hazard or may fall on employees or equipment <br /> Where power tools are required, additional hazards exist These hazards include electrocution <br /> and/or shock due to usage in wet areas or use of damaged tools, trip hazards presented by <br /> dangling cords and the potential for injuries incurred by accidentally energized tools <br /> Use of pneumatic tools such as,jackhammers can cause cumulative trauma disorders such as <br /> Raynaud's Syndrome, in which peripheral circulation and nerves may be damaged due to <br /> prolonged repetitive motions Pneumatic and hydraulic tools are also a source of potential <br /> injury m the event that lanes are not bled appropriately or accidental discharges or <br /> disconnections occur <br /> MVI1-29-94AZHSIHASP/94-0037 JAF 3-4 <br />