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Table 7-5.—Troubleshooting chart for alternating-current controllers—Continued | Up
Construction Electrician Basic - Electricity handbook for electricians | Next
Appendix I, Continued |
APPENDIX 1
GLOSSARY
A-E—Architect, Engineering Firm.
AMERICAN WIRE GAUGE (AWG)—The standard
adopted in the United States for the measurement of
wire sizes.
AMMETER—An instrument for measuring the
amount of electron flow (in amperes).
AMPACITY—The current in amperes that a conductor
can carry continuously under the conditions of use
without exceeding its temperature rating.
AMPERE—The basic unit of electrical current
AMPLIFIER—The device that provides amplification
(the increase in current, voltage, or power of a
signal) without appreciably altering the original
signal.
ANSI—American National Standards Institute.
BILL OF MATERIAL—Alist of standard parts or raw
materials needed to fabricate an item.
BLOCK DIAGRAM—A diagram in which the major
components of a piece of equipment or a system are
represented by squares, rectangles, or other
geometric figures, and the normal order of
progression of a signal or current flow is
represented by lines.
BLUEPRINTS—Copies of electrical or other types of
technical drawings. Although blueprints used to be
blue, modern reproduction techniques now permit
printing of black on white as well as colors.
BORDER LINES—Dark lines defining the inside
edge of the margin on a drawing.
BREAK LINES—Lines to reduce graphic size of an
object generally to conserve paper space. Two
types: long, thin, ruled lined with freehand zigzag;
short, thick, wavy freehand line.
CAPACITANCE—The property of an electrical
circuit that opposes changes in voltage.
CAPACITOR—An electrical device capable of
storing electrical energy in an electrostatic field
CBC—Construction Battalion Center.
CESE—Civil Engineering Support Equipment.
CESO—Civil Engineering Support Office System
manager responsible for maintaining NCF Table of
Allowance (TOA).
COMSECONDNCB—Commander, Second Naval
Construction Brigade.
COMTHIRDNCB—Commander,
Third
Naval
Construction Brigade.
CONDUCTOR—A material that easily permits
electric current to flow.
CONTINUITY—An uninterrupted, complete path for
current flow.
CRIBBING—The act of placing some firm material
around the below ground portion of a power pole.
CTR—Central Tool Room.
CURRENT—The passage of electrons through a
conductor, measured in amperes.
DEVICE—A part of an electrical system that is
intended to carry electrical energy.
DIRECT SHORT—See SHORT CIRCUIT.
DoD—Department of Defense.
DYNAMOMETER —An instrument that measures
the strain of the pull used in pole-line construction.
ELECTROLYTE—A solution of a substance that is
capable of conducting electricity.
ELECTROMECHANICAL DRAWING—A special
type of drawing combining electrical symbols and
mechanical drawing to show the composition of
equipment that combines electrical and mechanical
features.
EPA—Environmental Protection Agency.
EQUIPMENT GROUNDING—The grounding of all
exposed non-current carrying metal parts of an
electrical system to the earth.
FEX—Field exercise.
AI-1
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