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4.5
I found this is a useful electrical construction book for Electrical Contractors, Electrical designers and Electrical Engineers.It provides a table of the electrical loads of typical electrical devices and provides the method for calculating the loads, for that alone it is good to purchase. The book is mostly used to put the correct information on the drawings to get approved by the building department and to purchase the correct material for the electrical job.It's not a primer for rookies unless use with proper instruction. It useful for learning to read Electrical Drawings. It does a good job on providing information for designing electrical small and large buildings from the service up. It touches on Fuses, Breakers, services, Lighting, motors, branch circuits and feeders. It has some good information on doing short circuit calculations and touches on coordination. It even provides a typical set of Electrical Drawings and typical offices.It full of useful tables, illustrations and pictures to speed up design. I found it simple to use and found a person using this book on u tube that uses this book as a guide. What I liked about this book is that it is easy to read and does not get loaded down with a lots of NEC references or techno babble but does have the most required NEC references to do the job.This is not a book for passing NEC code. It is for working document. I was surprised to find it. I found it while viewing a course on utube on "short circuit calculations by hand".All in all it's not bad a book and is good for an advance course or refresher course on Electrical Construction Methods and Designs.