{ "item_title" : "Basic Industrial Electricity and Maintenance Handbook", "item_author" : [" Mercer Marshall "], "item_description" : "A motor fails to start on second shift. A breaker trips with no obvious cause. A panel begins to smell warm. In that moment, a great deal depends on whether the person who opens the steel door understands what is behind it.Most plant technicians learn electrical work in fragments: a procedure picked up from a co-worker, a flowchart taped inside a cabinet, a manufacturer manual for one machine. That approach holds until the fault falls outside the flowchart, and then there is nowhere left to go. Theory texts are written for engineering students and rarely reach the equipment. Field guides list steps without explaining why the steps work. Meanwhile the line is down, the pressure is real, and guessing on energized equipment carries consequences measured in injuries as well as in lost hours.This handbook was written to close that gap. It assumes no prior electrical training, develops each principle from the ground up, and then puts that principle to work on the equipment a technician actually meets between the service entrance and the machine. Theory and practice are treated as one subject, because someone who understands why current divides as it does, why a loose termination heats, and why a motor draws six times its running current at start can reason about a fault nobody has documented.Inside, you will learn how to: Recognize shock, arc-flash, and arc-blast hazards, apply the approach boundaries, and establish a verified de-energized work condition before a tool is picked upAnalyze series, parallel, and combination networks, and read the measured signature of an open circuit, a short circuit, and a high-resistance connectionWork through three-phase relationships with confidence, including wye and delta connections, voltage unbalance, and single-phasingTrace a ladder diagram rung by rung and find the exact point where control voltage disappearsInterpret motor and transformer nameplate data, size overload protection, and understand what an adjustable-speed drive is doing to a motorSelect conductors by ampacity, correct for ambient temperature and conductor count, and calculate voltage drop before it becomes a starting problemApply a structured troubleshooting sequence instead of proceeding by inspection and substitutionCoverage runs from hazard recognition and the regulatory framework through circuit analysis, magnetism and induction, alternating current, power factor, three-phase distribution, conductors and wiring methods, grounding and bonding, overcurrent protection, transformers, test instrumentation, induction motors, control circuits, motor protection and drives, sensors and programmable controllers, systematic fault finding, and the design of a preventive and predictive maintenance program.It is written for the apprentice electrician, the maintenance technician who came up through mechanical work, the millwright who needs to speak the same language as the electrical department, and the trade student who wants theory connected to something real.Open the first chapter, begin with the safety method that has to come before every other skill, and start building the understanding that makes plant equipment legible.", "item_img_path" : "https://covers4.booksamillion.com/covers/bam/9/79/819/247/9798192477595_b.jpg", "price_data" : { "retail_price" : "39.99", "online_price" : "39.99", "our_price" : "39.99", "club_price" : "39.99", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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