Interior Electrical Systems


Interior Electrical Systems



 



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TOC



1. General



1-1 PURPOSE

1-2 SCOPE

1-3 REFERENCES

1-4 CODES AND STANDARDS

1-5 SYMBOLS

1-6 APPLICABILITY

1-7 MANUAL CONTENT AND ORGANIZATION



PRELIMINARY AND DETAILED DESIGN ANALYSIS

2-1 PRELIMINARY DESIGN

2-1.1 Principal Points of Contact

2-1.2 Preliminary Design Guidance for Interior Electrical Systems

2-1.3 Unified Facilities Guide Specifications

2-2 ELECTRICAL LOAD CRITERIA

2-3 OVERVIEW OF DETAILED ANALYSIS CRITERIA

2-4 SHORT CIRCUIT ANALYSIS

2-4.1 Analysis and Equipment Criteria

2-4.2 Short Circuit Sources

2-4.3 Symmetrical Versus Asymmetrical Current

2-4.4 Short Circuit Calculations

2-5 POWER FLOW ANALYSIS

2-6 VOLTAGE DROP ANALYSIS

2-6.1 Voltage Drop Calculations

2-6.2 Motor Starting Studies

2-7 ELECTRICAL COORDINATION

2-8 POWER QUALITY AND HARMONIC DISTORTION

2-9 LIGHTING

2-10 ENERGY ANALYSIS

2-10.1 Overview

2-10.2 New Facility Criteria

2-10.3 Existing Facilities

2-10.4 Energy Efficiency Design Opportunities in the Electrical System

2-11 LIFE-CYCLE COST ANALYSIS

2-12 ELECTRICAL DRAWINGS

2-12.1 Introduction

2-12.2 One-Line Diagrams

2-12.3 Switchgear Lineups

2-12.4 MCC Layouts

2-12.5 Grounding

2-12.6 Control Panel Wiring Diagrams

2-12.7 Control Schematics

2-12.8 Miscellaneous Interconnection Diagrams

2-12.9 Equipment Layouts with Conduit or Cable Tray

2-12.10 Panel Schedules

2-12.11 Lighting and Receptacle Layouts

2-12.12 Motor List

2-12.13 Conduit or Cable Schedule



GENERAL POWER SYSTEM CRITERIA

3-1 CHARACTERISTICS

3-1.1 Voltage

3-1.2 Frequency

3-1.3 Power Factor

3-1.4 Neutral Conductor Grounding

3-2 NORMAL POWER SOURCE

3-3 ALTERNATE AND BACKUP POWER SOURCE

3-4 SERVICES



POWER DISTRIBUTION AND UTILIZATION—TRANSFORMERS

4-1 RATINGS

4-1.1 Introduction

4-1.2 Voltage and Current

4-1.3 Temperature and kVA

4-1.4 Impedance

4-1.5 Number of Phases

4-1.6 Transformer Taps

4-1.7 Noise

4-1.8 Basic Impulse Insulation Levels (BILs)

4-2 LOW VOLTAGE TRANSFORMERS

4-3 MEDIUM VOLTAGE TRANSFORMERS

4-4 OTHER TRANSFORMERS

4-4.1 Isolation Transformers

4-4.2 Buck-Boost Transformers

4-4.3 K-Factor Transformers

4-4.4 Specialty Transformers

4-5 TRANSFORMER INSTALLATION CRITERIA

4-5.1 Introduction

4-5.2 Dry-Type Transformers

4-5.3 Less-Flammable, Liquid-Insulated, and Oil-Insulated Transformers

4-5.4 Fire Protection Criteria

4-6 TRANSFORMER SIZING

4-7 INFORMATION SOURCES



CHAPTER 5 POWER DISTRIBUTION AND UTILIZATION—SWITCHGEAR, LOAD CENTERS, AND BREAKERS



5-1 SERVICE ENTRANCE

5-2 SWITCHGEAR AND SWITCHBOARDS GENERAL CRITERIA

5-3 HIGH VOLTAGE SWITCHGEAR

5-4 MEDIUM VOLTAGE SWITCHGEAR

5-4.1 Ratings

5-4.2 Low Voltage Conductors in Medium Voltage Switchgear

5-5 LOW VOLTAGE BREAKERS AND PANELS

5-6 MOTOR CONTROL CENTERS

5-7 DISCONNECT SWITCHES

5-8 CIRCUIT LOCKOUT REQUIREMENTS

5-9 INFORMATION SOURCES



CHAPTER 6 POWER DISTRIBUTION AND UTILIZATION—RACEWAY AND WIRING



6-1 RACEWAY CRITERIA

6-2 WIRING SYSTEM CRITERIA

6-3 SIZING WIRING SYSTEMS FOR ENERGY SAVINGS

6-4 CONVENIENCE OUTLETS AND RECEPTACLES

6-5 WIRING FOR TEMPORARY POWER AND LIGHTING

6-6 ACCEPTANCE TESTING OF WIRING SYSTEMS



CHAPTER 7 POWER DISTRIBUTION AND UTILIZATION—MOTORS AND MOTOR CONTROL CIRCUITS



7-1 BASIC MOTOR CRITERIA

7-2 MOTOR CONTROL CIRCUITS

7-3 ADJUSTABLE SPEED DRIVES



CHAPTER 8 POWER DISTRIBUTION AND UTILIZATION—OTHER DESIGN CRITERIA



8-1 ELECTRICAL EQUIPMENT CLEARANCES AND GUARDS

8-1.1 Background

8-1.2 Equipment Rated 600 Volts and Lower

8-1.3 Equipment Rated Above 600 Volts

8-2 ENCLOSURES

8-3 HAZARDOUS LOCATIONS

8-4 400-HERTZ DISTRIBUTION SYSTEMS

8-5 METERING

8-6 POWER FACTOR CORRECTION



CHAPTER 9 ELECTRICAL SYSTEM PROTECTION AND COORDINATION



9-1 PROTECTION SYSTEM DESIGN

9-2 ELECTRICAL COORDINATION ANALYSIS CRITERIA

9-2.1 Introduction

9-2.2 Coordination Study Description

9-2.3 Coordination Time Intervals

9-2.4 Pickup Current

9-2.5 Coordination Curves

9-2.6 Coordination Analysis

9-2.7 Coordination Study Report

9-3 PROTECTIVE RELAYS

9-4 INSTRUMENT TRANSFORMERS

9-4.1 Background

9-4.2 Current Transformers

9-4.3 Potential Transformers

9-5 FUSES

9-6 OVERLOAD RELAYS

9-7 CIRCUIT BREAKERS

9-8 PROTECTIVE DEVICE DESIGNATIONS

9-9 INFORMATION SOURCES



CHAPTER 10 GROUNDING, BONDING, AND LIGHTNING PROTECTION



10-1 INTRODUCTION

10-2 NEC GROUNDING AND BONDING REQUIREMENTS

10-3 STATIC PROTECTION

10-4 COMMUNICATIONS SYSTEMS GROUNDING AND BONDING

10-4.1 Introduction

10-4.2 Connection to the Grounding Electrode

10-4.3 Commercial Building Grounding and Bonding Requirements for Telecommunications

10-5 LIGHTNING PROTECTION

10-6 INFORMATION SOURCES



CHAPTER 11 SURGE PROTECTION



11-1 INTRODUCTION

11-2 SURGE PROTECTION DESIGN

11-2.1 Parallel Versus Series Approach

11-2.2 Multiple Layer Protection Design

11-3 INSTALLATION CRITERIA

11-3.1 Minimizing Lead Length for Parallel Surge Protectors

11-3.2 Breaker Connection

11-3.3 Grounding

11-3.4 Acceptance Tests

11-3.5 Periodic Maintenance

11-4 SURGE PROTECTION FOR COMMUNICATIONS AND RELATED SYSTEMS



CHAPTER 12 POWER SYSTEM QUALITY



12-1 INTRODUCTION

12-2 UNBALANCED VOLTAGES

12-3 HARMONIC DISTORTION EVALUATION

12-4 HARMONIC CURRENT EFFECTS ON TRANSFORMERS

12-5 POWER QUALITY DESIGN

12-6 NONLINEAR LOAD DESIGN CONSIDERATIONS

12-7 NEUTRAL CIRCUIT SIZING FOR NONLINEAR LOADS

12-7.1 Potential Neutral Current Magnitudes

12-7.2 Installation Design Criteria

12-8 INFORMATION SOURCES



CHAPTER 13 EMERGENCY AND STANDBY POWER SYSTEMS



13-1 ESTABLISHING THE NEED FOR BACKUP POWER

13-2 CLASSIFYING EMERGENCY POWER LOADS

13-3 ENGINE GENERATORS

13-4 UPS SYSTEMS

13-4.1 Introduction

13-4.2 Selection and Performance

13-4.3 Sizing

13-4.4 Selection of a Large UPS System or Multiple Smaller UPS Systems



13-4.5 Design Criteria

13-4.6 Site Survey for an Installation

13-5 AUTOMATIC TRANSFER EQUIPMENT

13-5.1 Introduction

13-5.2 Transfer Methods

13-5.3 Design Considerations

13-5.4 Static Transfer Switches

13-5.5 Sizing

13-5.6 Effect of Motor Loads

13-5.7 Maintaining Ground Fault Protection

13-5.8 Additional System Design Considerations

13-5.9 Information Sources



CHAPTER 14 STATIONARY BATTERY SYSTEMS



14-1 STATIONARY BATTERIES

14-1.1 Selection

14-1.2 Battery Areas and Battery Racks

14-1.3 Installation Design Considerations

14-2 BATTERY CHARGERS

14-3 BATTERY PROTECTION



CHAPTER 15 LIGHTING



15-1 LIGHTING DESIGN CRITERIA



CHAPTER 16 COMMUNICATIONS AND INFORMATION SYSTEMS



16-1 INTRODUCTION

16-2 ARMY DESIGN CRITERIA

16-3 NAVY DESIGN CRITERIA

16-4 AIR FORCE DESIGN CRITERIA



CHAPTER 17 AUXILIARY SYSTEMS



17-1 FIRE ALARM AND DETECTION SYSTEMS

17-2 SECURITY SYSTEMS

17-3 TELEVISION SYSTEMS

17-4 CLOCK SYSTEMS

17-5 ENERGY MANAGEMENT AND CONTROL SYSTEMS



CHAPTER 18 FACILITY-SPECIFIC DESIGN CRITERIA



18-1 MEDICAL FACILITIES

18-2 POWER DISTRIBUTION FOR AIRCRAFT HANGARS (SHELTERS)

18-3 HIGH-ALTITUDE ELECTROMAGNETIC PULSE (HEMP) AND TEMPEST PROTECTION

18-4 SEISMICALLY QUALIFIED DESIGNS

18-5 TROPICAL ENGINEERING

18-6 ARCTIC ENGINEERING

18-7 GENERAL FACILITY TYPES

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