Construction Electrician Intermediate - Electricity handbook for electricians
Chapter 1 Construction Support
Table 1-2.Assemblies Functionally Grouped To Seabee Skills
Component P-25
Figure 1-3.Typical Listing Of An Assembly.
Facility 811 10R
Excavations And Shoring
Project Planning
Figure 1-6.Approximate Angle Of Repose.
Project Planning Package
Table 1-4.Seabee Project Package
Table 1-4.Seabee Project Package Continued
Network Analysis
Advantages
Quality Control
Quality Control Plan
Figure 1-13.Project Qc Plan.
Figure 1-14.Quality Control Plan.
Hazardous Material, Continued
Chapter 2 Drawings And Specifications
Specifications
Table 2-1.Technical Specifications
Working Sketches
Abbreviations And Symbols
Schedules
Figure 2-3.Additional Electrical Symbols.
Figure 2-4.Heating, Plumbing And Pipe Fitting/Value Symbols.
Figure 2-5.Mechanical And Plumbing Symbols.
Figure 2-6.Architectural Symbols For Doors And Windows.
Figure 2-7.Title Symbols.
Modular Dimensions
Metric Dimensions
Figure 2-10.Commonly Used Lighting Fixture.
Figure 2-12.Enlarged View Of Part Of A L/4-Inch Scale.
Figure 2-13.Using A Scale To Check A Measurement On A Blueprint.
Metric Dimensions, Continued
Power And Voltage Requirements
Table 3-1.Types Of Portable Generators
Generator Installation
Generator Set Inspection
Feeder Cable Connections
Plant Equipment
Parallel Plant Operation
Isolated Bus Operation
Basic Operating Precautions
Power Plant Maintenance
Chapter 4 Electrical Distribution
Network Distribution System
Overhead Considerations
Equipment
Distribution Transformers
Distribution Transformers, Continued
Figure 4-6.Single Transformer Hung With Crossarm Brackets
Figure 4-9.Three-Phase 25 Kva Transformers Mounted On An H-Frame Platform.
Figure 4-11.Polarity Tests.
Figure 4-13.Polarity Markings And Directions Of Voltages When Polarity Is Subtractive.
Figure 4-15.Transformer Size Calculations.
Table 4-1.Demand Factor
Figure 4-17.Single-Phase Transformer Connected To Give 120/240-Volt Three-Wire Single-Phase Service.
Figure 4-20.Cluster-Mounted Bank Of Transformers.
Capacitors
Table 4-2.Power Factor Of Various Types Of Electrical Equipment
Fixed Capacitors
Capacitor Precautions
Construction
Protective/Interrupting Devices
Enclosed Distribution Cutout
Fuse Link Operation
Recommended Size Of Primary Fuse
Oil Switch
Protective Gounds
Underground Considerations
Manholes, Continued
Figure 4-39.Typical Manholes.
Ducts And Trenches
Risers/Potheads
Underground Power Cables
Rigging
Maintenance
Digital Multimeters
Maintenance Of Distribution Equipment
Distribution Safety Equipment
Rubber Insulating Insulator Hoods
Table 5-1.Minimum Cover Requirements For 0 To 600 Volts (Burial In Inches)
Underfloor Raceway Systems
Conduit Layout
Wiring Of Buildings
Lighting And Power Systems
Figure 5-4.Typical Arrangement Of A Split-Bus Lighting Panelboard.
Branch Circuits For Grouped Loads
Equipment Grounding Conductors
Testing Electrical Circuits
Checking For The Hot Wire
Testing The Ground Terminal
Circuit Breaker
Figure 5-17.Checking For A Properly Grounded Receptacle.
Bending Conduit
Figure 5-19.Procedure Used With A Neon Tester To Isolate A Defective Fuse In A Live Circuit.
Figure 5-20.Hydraulic Sweep Bender With Hand Pump.
Conduit Supports And Installation Methods
Coduit Hangers And Supports
Soldering And Splicing Procedures
Splices
Western Union Splice
Figure 5-31.T-Tap Used To Connect Into An Ongoing Line.
Soldering Splices
Fuses
Out-Of-Service Protection
Fire Safety
Figure 5-39.Technique For Taping A Solderless Connector.
Figure 5-41.Selection Of An Effective And Safe Fire Extinguisher.
Chapter 6 Fiber Optics And Lighting Systems
Semiconductor Material
Optical Detectors And Fiber-Optic Receivers
Fiber-Optic System Topology
Fiber-Optic Measurements
Mechanical And Fusion Splices
V-Grooved Splices
Rotary Splices
Area Lighting Systems
Selection Of Luminaries
Figure 6-11.Light Distribution Patterns For Roadway Lighting.
Manufacturer'S Literature
Isofootcandle Curve
Maintenance Factor
Lighting Intensity Calculations
Lighting Intensity Calculations, Continued
Floodlights
Selection Of Luminaries
Mounting Height And Spacing
Floodlight Aiming
Figure 6-22.2X-4X Mounting Height Rule.
Manufacturer'S Literature
Isofootcandle Diagrams
Figure 6-27.Floodlight Manufacturers Literature.
Light Intensity Calculations
Security Lighting
Security Area Classification
Airfield Lighting
Figure 6-30.Field Arrangement Direct Installation.
Airfield Lighitng Vault
Constant-Current Regulator
Remote Control
Lighting Circuits
Runway Edge Lights
Figure 6-35.Typical Airfield Lighting Layout.
Visual Approach Slope Indicators (Vasi)
Figure 6-37.Fresnel Lens Optical Landing System (Flols).
Obstruction Lights
Types Of Fixtures And Lamps
Condenser Discharge Lighting System
Figure 6-39.Airfield Lighting Components.
Strobe Light System
Master Sequence Timer Cabinet
Figure 6-41.Condenser Discharge Strobe Light Unit.
Figure 6-42.Master Sequence Timer And Controls.
Master Sequence Timer
Maintenance Of Airfield Lighting Systems
Condenser Discharge Light System
Types Of Trouble
Underground Lighting Problems, Continued
Chapter 7 Electrical Equipment
Figure 7-2.Branch-Circuit Layout #2.
Several Motors Or Loads On One Branch Circuit
Figure 7-4.Branch-Circuit Conductor Sizing.
Figure 7-5.Motor Controllers Basic Rules And Exceptions.
Motor And Branch-Circuit Overload Protection (Nec 430, Part C)
Equipment Grounding
Figure 7-6.Definition Of Fixed Equipment.
Figure 7-8.Equipment Housing Ground Connections (Load Side).
Figure 7-9.Subpanel Bonding Hazards.
Control Circuits
Control Symbols
Control And Power Connections
Figure 7-13.Control Circuit Components.
Figure 7-15.Two-Wire Control Circuit.
Troubleshooting And Testing Controllers
Testing Component Circuits
Combination Starters
Motor Maintenance
Greasing Ball Bearings
Figure 7-26.Pilot Light Indicates When Motor Is Not Running.
Motor Storage
Brush Inspection
Equipment Troubleshooting
Table 7-2.Controller Troubleshooting Tips
Table 7-2.Controller Troubleshooting Tips Continued
Table 7-2.Controller Troubleshooting Tips Continued
National Electrical Code Requirements For Security/Fire-Alarm Ssytems
Figure 8-3.Typical Shunt Switch Circuit.
Alarm Systems Installed In Existing Buildings
Figure 8-5.A Flashlight And Mirror Used In Combination
New Techniques For Installing Security/Fire-Alarm Systems In Existing Buildings
Figure 8-9.Bit Has Penetrated Into Basement Area.
Figure 8-10.Recovery Grip Attached To The Bit Tip Eyelet.
Components Of Security/Fire-Alarm Systems
Control Panel
Figure 8-16.Control Unit With Annunciation.
Entry Detectors
Conductive Foil On Glass Doors
Figure 8-22.Conductive Foil On Glass Doors.
Additional Commercial/Industrial Components Of Security/Fire-Alarm Systems
Ultraviolet-Radiation Fire Detectors
Telephone Dialers
Figure 8-31.Structure Of A Heat-Sensor Cable.
Figure 8-34.This Detector Has Maximum Sensitivity In The Ultraviolet Range.
Figure 8-36.Schematic Wiring Diagram Of A Typical Telephone Dialer.
Figure 8-37.Preferred Connections For A Typical Telephone Dialer.
Figure 8-39.Wiring Diagram For A Switched-Voltage Trigger.