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The technician’s handbook

  


by Filed under Electrical engineering

The technician’s handbook

File : 1.3 MB, 156 pages

Navy electricity and electronics training series – Modul 19

1. The Technician’s Handbook

Here, in one compact module, you will be able to find essential information and reference material. Whether you want to know safety precautions, first aid, or any number of helpful pieces of information, you will find it indexed.
We have included electrical and electronic formulas, data tables, and general maintenance hints. In most cases you will find references to other more detailed sources included.
We solicit your suggestions, maintenance hints, and constructive criticism. You will receive credit in future editions of this handbook if your input is used.

MISHAP PREVENTION AND AFTERCARE
Most of us working with electricity take risks. Usually we get our jobs done without any harmful results. Mishaps or injuries usually result from not understanding a risk or danger. The first part of this handbook is designed to help you eliminate or minimize mishaps. It also provides you with a good review of what to do in case of a mishap.

SAFETY OBSERVATIONS FOR THE ELECTRICAL AND ELECTRONICS TECHNICIAN
Working safely is the most important thing you can do. Because of their importance, several precautions are included as the first subject in this handbook. Of course there are more precautions, but these are some you should think about. The keyword here is think. Think safety.

• Never work alone.
• Never receive an intentional shock.
• Only work on, operate, or adjust equipment if you are authorized.
• Don’t work on energized equipment unless absolutely necessary.
• Keep loose tools, metal parts, and liquids from above electrical equipment. Never use steel wool
or emery cloth on electric and electronic circuits.
• Never attempt to repair energized circuits except in an emergency.
• Never measure voltage in excess of 300 volts while holding the meter wire or probe.
• Use only one hand when operating circuit breakers or switches.
• Use proper tag-out procedures for regular and preventive maintenance.
• Be cautious when working in voids or unvented spaces.
• Beware the dangers of working aloft. Never attempt to stop a rotating antenna manually.
• Keep protective closures, fuse panels, and circuit breaker boxes closed unless you are actually
working on them.
• Never bypass an interlock unless you are authorized to do so by the commanding officer, and then properly tag the bypass.
• Use extreme caution when handling cathode-ray tubes. They implode violently if broken. The anode contact may have a residual electrical charge. Make sure you discharge the anode before handling.

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