Here is the "Electrician's Mate 3 - Navy Training Courses" (NAVPERS 10548)
in its entirety (or will be eventually). It should provide one of the Internet's best
resources for people seeking a basic electricity course - complete with examples worked
- U.S. Government Printing Office; 1949
Electrician's Mate 3 - Navy Training Courses NAVPERS 10548
Introduction by Kirt Blattenberger
In January of 1945, my father-in-law, Marlet Goodwin, enlisted in the Merchant Marines and spent two years working in the "belly of the beast" in the engine rooms of the ships on which he sailed. He recently passed on to me some of the training manuals that he received while in the Merchant Marines and later while in the Naval Reserves. Some of the information contained in those manuals are amazingly detailed - both for mechanical and electrical systems. Since the basics have not changed much over the past 70 years, I thought it might be useful to make some of the content available here.
Government publications are considered to be in the public domain, and may be freely redistributed so long as credit is given*. Accordingly, I have undertaken the task of scanning and publishing the content of the Electrician's Mate 3 course here. Other manuals will be added as time permits. The time consumed in doing so is extensive. Each page was scanned once to do an optical character recognition (OCR) processing on it, and then again to obtain the images (OCR tries to interpret images as text and makes a real mess there). Although anyone may freely copy a government publication, no one may copy my version of the publication of it. If you want to publish content from the manuals, you must scan your own images and create your own duplicate text. However, I welcome anyone to print out these complete pages for use in self-study, or even as part of a classroom course - just be sure to give proper credit.
Here is the "Electrician's Mate 3 - Navy Training Courses" (NAVPERS 10548) in its entirety (or will be eventually). It should provide one of the Internet's best resources for people seeking a basic electricity course - complete with examples worked out (links to quizzes at end of chapters).
Electrician's Mate 3 - Navy Training Courses
This book is written to aid the striker for Electrician's Mate 3 to qualify for advancement to that rate. The combination of this training course and practical experience will enable the striker to meet the official requirements for advancement to EM3. These requirements, as given in The Manual of Qualifications for Advancement in Rating (NavPers 18068), are reproduced in appendix II. This course is based on an elementary knowledge of electricity and mathematics. Therefore, before starting this course the striker should complete the two basic Navy Training Courses, Electricity, NavPers 10622, and Mathematics, NavPers 10620. The duties of an Electrician's Mate also require an elementary knowledge of machines, tools, and blueprints. Hence, while studying this course, the striker should review these additional basic Navy Training Courses-Basic Machines, NavPers 10624; Use of Tools, NavPers 10623; and Use of Blueprints, NavPers 10621. . This training course presents the basic phenomena of direct current necessary for an EM3 to perform his duties on direct current machinery. He should also have a similar back-ground on alternating current machinery. Such background he will find in the appropriate chapters of the Navy training course for Electrician's l.1ate 2c, NavPers 10103. As one of the NAVY TRAINING COURSES, this book represents the joint efforts of the Training Publications Section of the Bureau of Naval Personnel and of those Naval establishments specially cognizant of the technical aspects of Electrician's Mates' duties.
TABLE OF CONTENTS
CHAPTER 1 Electrical currents and circuits - Ohm's Law
CHAPTER 2 Magnetism
CHAPTER 3 Electromagnetism and magnetic circuits
CHAPTER 4 lnduction
CHAPTER 5 Alternating and direct current generators
CHAPTER 6 Direct current generators
CHAPTER 7 Types of direct current generators
CHAPTER 8 Operation of direct current generators
CHAPTER 9 Direct current motors
CHAPTER 10 Maintenance of direct current motors and generators
CHAPTER 11 Page Direct current controllers
CHAPTER 12 Cables
CHAPTER 13 Batteries
CHAPTER 14 Electrical systems in small craft
CHAPTER 15 Searchlights
CHAPTER 16 Blueprint reading and sketching
CHAPTER 17 Safety precautions
APPENDIX I Answers to quizzes
APPENDIX II Qualifications for advancement
If you are in the Regular Navy, you will be striking for the general service rating (EM). To meet the qualifications for 3rd class in this rating (see column EM, appendix II) you will have to study all the chapters in this book. If you are a member of the Naval Reserve you will be striking for either the emergency rating as power electrician (EMP) or shop electrician (EMS). To meet the qualifications for EMS you have to study all the chapters of this book except chapter 11 (D. C. Controllers). For EMP3 rate you have to study all the chapters except chapter 10 (Maintenance of Direct Current Motors and Generators). However, to gain a well-rounded view of the duties of the general service rating, it is recommended that you also read the additional chapters 10 or 11, which do not pertain directly to your rating.
* Relevant excerpt from the www.cendi.gov website.
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