NEC 2005 Flash Presentation
“Making Learning
a Thing to Remember!”
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The NEC is broken up into 9 Major
CHAPTERS: (Try to Identify each chapter.)
1 - Def (100) & Gen Requirements (110)
2 - Wiring & Protection (200-285)
3 - Wiring Methods & Materials (300-398)
4 - Equipment for General USE (400-490)
5 - Special Occupancies (500-590)
6 - Special Equipment (600-695)
7 - Special Conditions (700-780)
8 - Communications (800-830)
9 - Tables 1,2,4,5,8, Annexes, Index
The NEC 9 Major CHAPTERS: (as each chapter is displayed, here’s a
little different way of seeing them to help you remember.)
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Def (100) & Gen Requirements (110)
Wiring & Protection (200-285)
Wiring Methods & Materials (m&m’s) (300-398)
Stuff we USE every day (400-490)
Scary (Hazardous) Places (500-590)
Weird Industry (600-695)
911 Emergency (700-780)
Communications – TV, Radio, Antennas, Network (800-830)
Tables 1(53,31,40) ,2 (Bends) ,4(Conduit Area) ,5 (Conductor Area) ,8(Ohms)
Now that you know basically
what’s in each of the CHAPTERS:
It’s time to go through the ARTICLES in
each Chapter.
Don’t forget about ARTICLE 90 which
basically says:
• DON’T ARGUE WITH YOUR
INSPECTOR!
He/She is the one who will pass or fail
your job. Remember,
AHJ Rules!
Chapter 1
• 100 Definitions – These are the basic
ones. Each chapter has more
definitions. Keep this in mind. They
will be in PART I (if there are PARTS) of every
ARTICLE, if applicable!
• 110 How tall, how far, how tight, how
Safe, how labeled, how guarded,
tunnels and manholes
Chapter 2
Wiring & Protection
There are 20 questions on test from
this chapter.
Chapter 2
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(What ARTICLE # goes with each of these?)
200- Neutral
210- Branch Circuit
215- Feeders
220- Branch Circuit, Feeder, & Service Calcs
225- OUTSIDE Branch Circuits & Feeders
230- Services
240- OVERcurrent Protection
250- GROUNDING & Bonding
280- Surge ARRESTORS
285- TVSS’s
Chapter 2 – What’s in each ARTICLE?
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200210215220225230240250280285-
Neutral
Branch Circuits
Feeders
Branch Circuits, Feeder & Services Calcs
Outside Branch Circuits
Services
Overcurrent Protection
GROUNDING & BONDING
Surge Arrestors
TVSurge S
Chapter 3
Wiring Methods and
Materials
There are 16 questions on test from Chapter 3.
Chapter 3
ARTICLES 300 –340 Wiring METHODS
Ways to wire something.
(AC,NM,MC, etc.)
and
ARTICLES 342- 398 Wiring MATERIALS
(RMC, PVC, EMT, etc.) Raceways
ARTICLES 300 – 314 Generally
Apply to wiring:
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300310312314-
Wiring Methods
Conductor Properties (Insulation & Ampacity Tables)
Cabinets, Cutout(off) Boxes, Meter Sockets
Outlets,
Device,
Pull & Junction Boxes,
Conduit Bodies,
Fittings,
HH (Handholes)
Articles 320 –340 :Ways to Wire
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320- AC – Armored Cable
322- FC – Flat Cable Assemblies
324- FCC – Flat CONDUCTOR Cable Assemblies
326- IGS – Integrated GAS SPACER Cable
328- MV – Medium Voltage Cable
330- MC – Metal-Clad Cable (What’s the difference between AC & MC cable?)
332- MI – Mineral-Clad Cable
334- NM, NMC (Corrosive resist) , NMS (Signaling)
336- TC - Power & Control Tray Cable
338- SE, USE – Service-Entrance Cable
340- UF – Underground Feeder and BC Cable
Articles 342-398 (Raceways) - Conduits
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342- IMC
344- RMC
348- FMC
350- LFMC
352- RNC (PVC)
353- HDPE
354- NUCC
356- LFNC
358- EMT
360- FMT
362- ENT (“Smurf”)
Articles 342-398 (Raceways) Cont’d
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366368370372374376378380382384386388390392394396398-
Auxiliary GUTTERS
BUSways
CableBUS
Cellular CONCRETE Floor Raceways
Cellular METAL Floor Raceways
METAL Wireways
NONMETALLIC Wireways
Multioutlet Assemblies
NONmetallic Extensions
STRUT-type Channel RACEWAY
Surface Metal RACEWAYS
Surface Nonmetallic RACEWAYS
Underfloor RACEWAYS
CT – Cable Trays
Concealed Knob-and-Tube Wiring
Messenger Supported Wiring
OPEN Wiring on Insulators
Chapter 4
Stuff We USE
Everyday!
There 16 questions on test from chapter 4.
CHAPTER 4 – Stuff we use like: Cords, Fixture wires,
Switches,Receptacles, Panelborads,ICP, & Luminaires
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400- Flexible Cords & Cables
402- Fixture Wires
404- Switches
406- Receptacles
408- Switchboards & Panelboards
409- Industrial Control Panels????
410- Luminaires, Lampholders, Lamps
Article 411- 440 Stuff we use
(Number That ARTICLE.)
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411422424426427430440-
Lighting under 30 Volts
Appliances
Fixed Electric Heating Equip
Fixed Outdoor Deicing
Fixed Heating Pipelines & Vessels
MOTORS, Circuits & Controls
A/C & Frig Equipment
Article 445- 490 More Stuff we use;
well, maybe (cont’d).
• 445- Generators
• 450- TRANSFORMERS & TRANSFORMER VAULTS
• 455- Phase Converters
• 460- Capacitors
• 470- Resistors & Reactors
• 480- Storage Batteries
• 490- Equip Over 600 Volts
Special Occupancies:
(500-590)
a.k.a.
Scary (Hazardous) Places
(500-514)
There are 8 questions on test from chapter 5.
Special Occupancies
500501502503504505506-
Hazardous Locations:Class I,II,III
Class I - Gases
Class II - Dust
Class III - Fibers
Intrinsically Safe
Zone 0, 1, 2
Zone 20, 21, 22
Articles 510-517
510 -Hazardous (Classified) Locations
511 -Commercial Garages, Repairs &
Storage
513 -Aircraft Hangers
514 -Motor Fuel Dispensing
515 -Bulk Storage Plants (of Fuels)
516 -Spray Application, Dipping & Coating
517 -HEALTH CARE FACILITIES
ARTICLES 518-590
518
520
525
530
540
545
547
550
– Assembly Occupancies
- Theaters
– Carnivals
– Motion Picture Studios
– Motion Projection Rooms
– Manufactured Buildings
– Agricultural Buildings
– Mobile & Manufactured Homes & Parks
551 –Recreational Vehicles & RV Parks (Pictures of Plugs)
552 – Park Trailers
553 – FLOATING Buildings
555 – Marinas
590 - Temporary Installations
Chapter 6
Special EQUIPMENT
(Weird Industry 600-695)
4 questions on test
If it’s unusual (weird) it’ll probably be in
chapter 6. Here are the top most
referenced articles:
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600- Electric Signs & Outline Lighting
605- Office Furnishings
610- Hoists & Cranes
620- Elevators,Dumbwaiters, Escalators, etc.
625- Electric Vehicles Charging Systems
630- Arc & Resistance Welders
645- IT Equipment
680- Swimming Pools & Spas
690- Solar Photovoltaic Systems
Chapter 7
Special CONDITIONS
(700-780)
There are 4 questions on test from this
chapter.
There are 10 Articles in Chapter 7.
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700- Emergency Systems
701- Legally Required Standby Systems
702- OPTIONAL Standby Systems
705- Interconnected Electric Power Prod
720- Circuits & Equipment less than 50 volts
• 725-
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Class 1,2,3 Remote-Control, Signaling, & Power-Limited Circuits
727- Instrumentation TC
760- Fire Alarm
770- Optical Fiber Cables & Raceways
780- Closed-Looped & Programmed Power Distb.
Chapter 8 – Communications
Systems (4 questions on test).
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800- Communications Circuits
810- Radio & TV Equipment
820- Community Antenna TV & Radio Dist.
830- Networked-Powered Broadband
Comm. Systems
There are 8 questions on test
from GENERAL ELECTRICAL
KNOWLEDGE
See Text References at the end of this
presentation.
Tables to know in Chapter 9:
1 – 53%, 31%, 40%
2 – Radius Bend
4 – Area of Conduit
5 – Area of Single Conductor
8 – Conductor Properties (OHMS)
Annex C – Same Size Conductor Fill
Annex D – Calculation Examples
Other Tables & Articles to KNOW:
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T 110.26(A)(1) T 220.12 -------T 220.55 -------225.18 ---------240.6 -----------T 250.66 -------T250.122 ------T 300.5 --------T 310.16 -------T 314.16(A) ---T 314.16(B) ----
Working Spaces
General Lighting Loads
Range Loads
Clearances from ground (Overhead)
Standard Amp Ratings -Fuses & Breakers
Grounding ELECTRODE Conductor Size
Grounding EQUIPMENT Conductor Size
Burial Depths
Ampacity of Conductors
Box Fill
Volume per Conductor Fill
More Tables & Articles to KNOW:
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400.4 ------- Flexible Cords and Cables
400.5 ------- Flexible Cords and Cables > 3
402.3 ------- Fixture Wires Types
402.5 ------- Fixture wire Ampacities
430.52 ----- Motor Protective Devices
430.248 ---- Motor FLC Single-Phase
430.250 ---- Motor FLC Three-phase
514.3(B)(1) Class I Fuel Dispensing
515.3 ------- Fuel Bulk Storage
The following references ARE
allowed in the testing center:
1. Alternating Current Fundamentals, Sixth ed.,
2000,Thomson Delmar Learning, P.O. Box 6904, Florence,KY
41022, www.delmarlearning.com
2. Mike Holt’s Illustrated Guide to Basic
Electrical Theory, Sec. ed., 2004, www.NECcode.com
3. NFPA 70 National Electrical Code, 2005
ed.
4. Printreading Based on the 2005 NEC, 2005
ed., www.go2atp.com
About the Examination:
• KNOW CHAPTERS 2, 3 & 4. 52 out of 80
QUESTIONS (65%) of the test focus on these chapters! Know these!
• SKIP ALL CALCULATIONS UNTIL THE END.
THEY’LL take TOO MUCH PRECIOUS TIME!
• READ THE QUESTION SLOWLY &
CAREFULLY! They will try to trick you.
• RELAX. Use the first minute or two to close
your eyes and visualize each article number
and basic content. This will help organize
your thoughts, calm test anxiety and reassure
you that you know the code book. If you’ve
done your flash cards & this presentation
thoroughly, you’ll be prepared.
Examination Outline:
General Elec. Knowledge ----- 10% (8 questions)
Wiring & Protection ----------- 25% (20 questions)
Wiring Methods ---------------- 20% (16 questions)
Equipment for General Use -- 20% (16 questions)
Special Occupancies ---------- 10% ( 8 questions)
Special Equipment ------------- 5% ( 4 questions)
Special Conditions ------------- 5% ( 4 questions)
Communications --------------- 5% ( 4 questions)