{ "item_title" : "An Introduction to Maintenance of Circuit Breakers", "item_author" : [" J. Paul Guyer "], "item_description" : "Introductory technical guidance for electrical engineers and electric power system operators interested in maintenance of electric distribution system circuit breakers. Here is what is discussed:1. LOW VOLTAGE (600 V AND LESS) DRAW-OUT AIR CIRCUIT BREAKER MAINTENANCE2. MEDIUM VOLTAGE (601 V - 15KV) AIR AND AIR BLAST BREAKER MAINTENANCE3. MEDIUM VOLTAGE (601 V - 15KV) VACUUM BREAKER MAINTENANCE4. MEDIUM AND HIGH VOLTAGE OIL CIRCUIT BREAKER MAINTENANCE.", "item_img_path" : "https://covers1.booksamillion.com/covers/bam/9/79/868/308/9798683085056_b.jpg", "price_data" : { "retail_price" : "29.99", "online_price" : "29.99", "our_price" : "29.99", "club_price" : "29.99", "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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