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Electrical <br />Potential Significant Hazards <br />Lapses In focus while working on live <br />electrical systems can present an <br />electrocution hazard. <br />Electrically energized equipment and live <br />electrical systems can expose workers to <br />electrocution or arc-flash burns. <br />Overhead power lines can cause <br />electrocution, especially near drilling rigs, <br />ladders, lifting and other tall equipment. <br />Underground electrical cables can present <br />hazards during any excavation, large or small. <br />Flammable vapor or material may ignite from <br />sparks generated during electrical work. <br />Static electricity can ignite flammables <br />during transfer operations. <br />Lightning is a potential hazard to anyone <br />working outdoors, especially when working at <br />height or in an open area. <br />Electrically powered equipment (power <br />tools, extension cords, etc.) presents an <br />electrocution hazard if it is improperly wired <br />or if a short occurs. <br />11 Assess all of your ion Specific hazards <br />Prevention Means Always: <br />ip Minimize work on live electrical systems. The first <br />choice is to de-energize. <br />Comply with permitting requirements and standards <br />for Electrical Safe Work Practices3 (SWP). Use of this <br />field guide is not an equivalent <br />Provide supervisory job-site walk-through prior to <br />permit approval and periodically during work. <br />Require that only qualified electrical persons work <br />on systems rated 50 volts and above. <br />Require a qualified electrical standby person <br />and use of applicable arc-flash and shock PPE by <br />everyone involved in interactions with exposed <br />energized parts. <br />De-energize/isolate, lock and tag, test, and <br />ground (if applicable) electrical equipment. <br />Address all points of isolation documented in the <br />isolation checklist. <br />Assume equipment is live— Test Before Touch <br />every time! <br />Ensure required clearance when working near <br />overhead power lines. (Consider a crane's full <br />extension radius.) Use Look up and Live flagging, <br />warning cones and a spotter for work near <br />overhead power lines. <br />Contact utility providers to locate <br />underground lines. <br />Inspect equipment and power cords before each <br />use. Require ground fault circuit interrupter (GM) <br />or residual current device (RCD) outlets for outdoor <br />work with portable electrical tools and lighting. <br />Adhere to grounding, bonding and transfer rates to <br />prevent static accumulation and discharge during <br />flammable material transfer operations. <br />Suspend work and seek safe refuge during threat <br />of lightning. <br />'See Chevron Corporate Required Standard tor Electrical Safe Work <br />Practice at Ittp://tectislos.cnevroo.com/oe-cotpotate.aso. <br />4* Did you assess for human performance? 12