2008 Ferm's Fast Finder
Guide to the 2008 National Electrical Code (NEC)

International Association of Electrical Inspectors (IAEI)

Ferm’s Fast Finder…even the name evokes thoughts of stability, speed and facility. For over 25 years, Ferm’s Fast Finder has been the leading guidebook, with its comprehensive directions, advice and information, to the National Electrical Code.

Its comprehensive cross-reference index has been meticulously updated to NEC-2008. Each entry, reference and source has been examined for precise detail and ease of use.

Volume 1 contains detailed crisscross references, gives many avenues of approach to each subject, and includes a special section that cross-references the International Residential Code (IRC) with the National Electrical Code.

Volume 2 has nearly 200 extensive and practical rules of thumb, formulas, illustrations, tables, charts and diagrams for the reader’s convenience.

Serviceable and beneficial, Ferm’s Fast Finder is a must-have for those who seriously study the codes.

Volume 1 Contents:

Preface vii

Notice to the Reader viii

How To Use Ferm’s Fast Finder Index x

Section 1 Ferm’s Fast Finder Index 11

This section is an alphabetized index of important words and phrases in the 2008 National Electrical Code.

Under the headings Reference and Page are shown:

• references and page numbers in the 2008 National Electrical Code, NFPA 70

• references to other NFPA standards and documents that are included in fine print notes throughout the NEC 2008. These include their numbers, editions and page numbers.

• UL Guide Card letters for all references to the 2007 UL General Information for Electrical Construction, Hazardous Location, and Electric Heating and Air Conditioning Equipment Directory (White Book).

• References to Ferm’s Fast Finder, Volume 2.

Under the heading Source appears the document from which the references and page numbers are derived.

Section 2 International Residential Code (IRC) Cross Reference 323

This cross reference between the National Electrical Code (NEC) and the International Residential Code (IRC) has three columns. The left column gives IRC references; the center column gives topic descriptions; and the third column gives the NEC reference to this same topic.

Volume 2 Contents:

Charts, Formulas, and Other Useful Information

Aluminum Conductor

Conductor Terminations 61
Compact Aluminum (Conduit Fill Tables) 68-79

Ampacity

Dwelling Services 48
1-phase Loads on a 3-phase Feeder 21

Ampere Feet (Formula) 138

Area in Square Inches of Compact Aluminum Conductors 84-85

Area in Square Inches of Conductors (Concentric) 80-83

Area of a Circle (Formula) 43

Ballast Data, Fluorescent 92

Branch Circuits (Dwellings) 49

BTU/HR to Tons or Watts 20

Busbars, Circular Mill Area of 98

Capacitance 23

Capacitor, Selection and Formulas 26-31

Centigrade and Fahrenheit (Formulas) 19

Circle, Properties of 43

Compact Aluminum (Conduit Fill Tables) 68-79

Conductors

Ampacity Basics 86-87
Ampacity, Dwelling Services 48
Ampacity of 1-phase Loads on a 3-phase Feeder 21
Area in Square Inches of Compact Aluminum 84-85
Area in Square Inches of Concentric 80-83
Concentric and Compact Stranding 88
Fill in Conduit and Tubing 87-88
High Ambient Temperature 86
More Than 3 Current-carrying Conductors 86
Number of Permitted in Conduit (Compact Aluminum) 68-79
Number of Permitted in Conduit (1-phase with Reduced Neutral) 53-54
Number of Permitted in Conduit (with Equipment Ground Wire) 68-79
Parallel 88-89
Percent Fill in Conduit and Tubing 87-88
Temperature Limitation of Terminations 86

Conduit

Dwelling Services 53-54
Fill in Conduit and Tubing 87
Fill Tables, Compact Aluminum 68-79
Fill Tables, with Equipment Ground 68-79

Decimal Equivalents Chart 19

Dwellings

Ampacity of Services and Feeders 49
Appliances, Typical Wattage 52
Branch Circuits for 49
Conduit Size, Service 53-54
Residential Requirements 49-51

Effective Voltage Value 22

Electric Heat and Rule of Thumb

Branch Circuit Sizing Table 47
Density of Baseboard Heaters 47
Heating and Cooling (Summary) 20
Heat Pumps 20
Voltage Variations Multiplier (Formula) 46
Voltage Variations Multiplier (Table) 46
Watts Required for Electric Heat 46

Equipment Grounding Conductor, Sizing Table 64

To Compensate for Voltage Drop 65
Fahrenheit and Cen ti grade (Formulas) 19

Fluorescent Ballast Data Chart 92

Full-load Current, Amperes

Short Cut (Formulas) 12
Single-phase Circuits (Chart) 13
Three-phase Circuits (Chart) 14
Three-phase Feeder to Single-phase Load (Formula) 21

Grounding Conductor (Sizing of) 65

To Compensate for Voltage Drop 65

Grounding Electrode Conductor (Sizing of) 61

Hazardous Areas (Defined) 58

Heating and Cooling (Summary) 20

Heat Pumps 20

High Intensity Discharge-lighting Ballast Data Chart 90-91

High Voltage Leg Formula 35

Horsepower (Formulas) 25

Hot Tub or Spa 45

Hydromassage Bathtubs 45

Impedance (Formula) 44

Inductance (Formula) 12

Kilowatt-hour Consumption Formula 52

KW or KVA to Amps 12

Lighting Fixture (Luminaire) Layout 93

Load Factor 87

Luminaire (Lighting Fixture) Layout 93

Mast-type Service Drawings

Surface and Flush, Short Mast (Drawing IAEI SM-1) 40
Surface and Flush, Tall Mast (Drawing IAEI SM-2) 41

Metric System 18

Mobile Home Hook-up (Drawings)

Overhead Feeder 38
Underground Feeder 39

Motor Control Circuits for Magnetic Starters 94

Motor Full-load Running Current Table 96

Motor Hook-up Drawings, 1-phase and 3-phase 95

Motor Starter Coil Data 97

Motor Starter, NEMA Sizes 98

NEMA Enclosure Standards 128-135

Neutral Load Calculations, 1-phase and 3-phase 35

Ohm’s Law (Formula) 15

Parallel Conductors 88-89

Power Factor Correction Tables 27-31

Power Factor (Formulas) 24-25

Power of Ten, Math Formula and Examples 42

Pump Houses and Wells 55

Drawings 56-57

Reactance (Formula) 23

Reciprocals (Formulas) 15

Rectifi er Losses (Formula) 34

Residential Requirements 49-51

Resistance (Formulas) 17

Schedule 40 PVC Conduit Fill Tables 76-77

Schedule 80 PVC Conduit Fill Tables 78-79

Separately Derived Systems 59-60

Series-parallel Circuits 16-17

Service

Mast Drawings 40-41
Minimum Conduit Sizes 53-54
Single-family Dwellings 48

Short-circuit Calculations (Formula) 100-102

Short-circuit Current Available (Summary) 99

Short-circuit Current in Amperes at Various Secondary Conductor Distances from Transformers 104-127

120/240-volt, Single-phase Transformer Connections 104-109
208Y/120-volt, Wye Transformer Connections 109-115
480Y/277-volt, Wye Transformer Connection 116-121
120/240-volt Wye, Delta Transformer Connection 122-127

Short-cut Formula 12

Sine Wave (Calculations) 22

Single-phase Loads on a Three-phase Feeder 21

Sizing Equipment Ground Wire (Table) 64

To Compensate for Voltage Drop 65

Sizing Grounding Electrode Conductors

Multi-enclosures Services 61

Skin Effect of Alternating Current 16

Spa or Hot Tub 45

Speed of Motor to Speed of Belt-driven Fan (Formula) 43

Swimming Pools (Grounding and Bonding) 44-45

Therapeutic Pools 45

Three-phase Feeder to Single-phase Loads 41

Torquing Connections Information 62-63

Transformer (Formulas & Calculations) 36-37

Volt-amp (Formula) (VA Formula) 64

Voltage Drop (Formula) 136-137

Voltage Drop Tables (Ampere-feet Method) 140-155

Example Illustration of Tables 138-139

Voltage, Effective Value 22

Voltage Variations (Multiplier Formula) 46

Voltage Variations (Multiplier Table) 46

Wattage Ratings of Residential Appliances 52

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2008 NEC & Related Products

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Electrical & Construction Safety Related
Electrical Menu - Page1
Electrical Menu - Page 2
Electrician's Tools
Electrical Supplies
PLC / Motor Controls
Electrical Related
Electrical Exam Prep
2008 NEC and Related
2005 NEC and Related
LV, VDV, CATV Related
Electrical Theory
Electrical Calculations
Electrical Estimating
Construction Related
Building Code Related

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