Free Graphics

Daily Code Tip Graphic!     1999   2002   2005   G vs B   Free Video  
Download and View All These for Free!
2002

Permission To Use Graphics: To receive permission to use any of the following graphics in a newsletter or other publication simply click the graphic link that you are interested in and fill out the request form. [ You Need Only Complete the Form One Time ] These graphics are based on the 2002 NEC.


  90.2 Scope of the NEC  This subsection was revised to group similar types of installations together and to make it easier to read. The first sentence was revised to read: . . .  
  90.2 Scope of the NEC  The rule that exempts electric utilities from complying with the requirements of the NEC was revised to read: (B) Not Covered. (5) E . . .  
  90.4 Enforcement (Inspection)  The first paragraph of this section was revised to read: This Code is intended to be suitable for enforcement by governmental bodies that ex . . .  
  Grounding Electrode Conductor  The definition for “Grounding Electrode Conductors” was revised to read:Grounding Electrode Conductor. The conductor that . . .  
  Ground-Fault Circuit Interrupter  The definition for “Ground-Fault Circuit Interrupter” was revised to read: Ground-Fault Circuit Interrupter. A device int . . .  
  Luminaire  A new definition was added to replace the NEC terms “fixtures” and “lighting fixtures.” This definition reads: Lumi . . .  
  Qualified Person  The definition of “Qualified Person” was revised to read: Qualified Person. A person who has the skill and knowledge re . . .  
  110.12 Mechanical Execution of Work  This rule was revised to read: (A) Unused Opening. Unused cable or raceway openings in boxes, auxiliary gutters, cabinets, cuto . . .  
  110.14 Electrical Connections  New text was added to clarify conductor sizing for terminals and it reads: (C)Temperature Limitations (1) Equipment Provisions. Th . . .  
  110.15 High-Leg Marking  New rule added to cover the identification of the high-leg. This rule reads: On a 4-wire, delta-connected system where the midpoint of one p . . .  
  110.16 Flash Protection  A new Code section and two FPN’s were added to provide requirements for marking equipment where arc fault hazards may be present. The new secti . . .  
  110.22 Identification of Disconnecting Means  The text was revised to read: All installed disconnecting means must be legibly marked to indicate their purpose unless they are l . . .  
  110.26 Spaces About Electrical Equipment  A new sentence was added, which addresses exit door requirements (panic hardware) for rooms containing large electrical equipment. This section now r . . .  
  110.26 Spaces About Electrical Equipment  The intent of the requirements for "dedicated equipment space" located indoors was completely revised and the rule reads: (F) Dedicated Equ . . .  
  200.6 Means of Identifying Grounded (neutral) Conductor  The term "natural" was deleted and a FPN was added to this section. It reads: (A) Identifying Grounded (neutral) Conductors 6 AWG or Small . . .  
  200.7 Use of Insulation of a White or Gray Color  The term "natural" was deleted and a FPN added to this section to read: (C) Circuits Over 50V. The use of white or natural gray in . . .  
  210.63 Heating, Air-Conditioning, and Refrigeration Equipment Outlet  The words “on rooftops and in attics and crawl spaces” and the exception were deleted so that this rule would coordinate with the mechanic . . .  
  210.7 Branch Circuit Receptacle Requirements  New text clarifies the requirement for simultaneously disconnecting the ungrounded branch circuit conductors. (C) Multiple Branch Circuits. . . .  
  210.8 Ground-Fault Circuit-Interrupter Protection for Personnel  New subsection was added to include boathouses.(A) Dwelling Units. GFCI protection must be provided for all 15 and 20A, single-phase . . .  
  210.8 Ground-Fault Circuit-Interrupter Protection for Personnel  New subsection was added to include kitchens. (B) Other than Dwelling Units. All 15 and 20A, single-phase, 125V receptacles instal . . .  
  210.12 Arc-Fault Circuit-Interrupter (AFCI) Protection  The word "receptacle" was deleted and the words “listed device that protects the entire branch circuit” were added. This subsectio . . .  
  210.52 Dwelling Unit Receptacle Outlets  The maximum distance the required receptacle for the counter surface can be above a dwelling unit kitchen counter surface was changed from 18 in. to 2 . . .  
  210.52 Dwelling Unit Receptacle Outlets  This section was revised to read: (D) Bathrooms. In dwelling units, at least one 15 or 20A, single-phase, 125V receptacle outlet . . .  
  210.52 Dwelling Unit Receptacle Outlets  This section was revised to read: (G) Basements and Garages. For a one-family dwelling, at least one 15 or 20A, single-phase 125V . . .  
  225.32 Disconnecting Means Location  Exception No. 1 was revised to read: The disconnecting means for a building or structure must be installed either inside or outside of the . . .  
  230.10 Vegetation as Support  A new rule was added, which reads:Vegetation such as trees cannot be used for the support of overhead service conductors. Figure 230-1< . . .  
  230.50 Protection of Cables Against Damage – Above Ground  Item (3) was revised from “rigid nonmetallic conduit” to Schedule 80 rigid nonmetallic conduit, so that this section reads:
  230.70 Service Disconnect - General  New text was added and it reads: (A) Location of Service Disconnecting Means (3) Remote Control. Where a remote con . . .  
  240.2 Definitions  The following definitions were added for Article 240: Current-Limiting Overcurrent Protective Device. A current-limiting overcurre . . .  
  240.21 Location in Circuit  A new subsection was added to read: (C) Transformer Secondary Conductors (6) Secondary Conductors Not Over 25 ft. Secondary condu . . .  
  240.33 Vertical Position  This section was revised to read: Enclosures for overcurrent devices must be mounted in a vertical position unless it is impracticable. Cir . . .  
  240.83 Marking  This subsection was revised and it reads: (D) Used as Switches. Circuit breakers used to switch 120V or 277V fluorescent lighting . . .  
  240.85 Applications  The second paragraph was revised and a FPN was added to read: A circuit breaker with a straight voltage rating (240V or 480V) can be used o . . .  
  240.85 Applications  Author’s Comment: A 120/240V slash circuit breaker cannot be used on the high-leg of a solidly-grounded 120/240V delta system, because . . .  
  250.2 Definitions  The following definitions were added to Article 250: Effective Ground-Fault Current Path. An intentionally constructed, permanent, . . .  
  250.4 General Requirements for Grounding and Bonding  Section 250-2 in the 1999 NEC was revised and relocated to 250.4. It now reads: (A) Grounded Systems. (2) Grounding of Electrical Equip . . .  
  250.4 General Requirements for Grounding and Bonding  Section 250-2 in the 1999 NEC was revised and relocated to 250.4. It now reads: (A) Grounded Systems. (3) Bonding of Electrical Equipme . . .  
  250.4 General Requirements for Grounding and Bonding  Section 250-2 in the 1999 NEC was revised and relocated to 250.4. It now reads: (A) Grounded Systems. (4) Bonding of Electrically Conductiv . . .  
  250.4 General Requirements for Grounding and Bonding  (A) Grounded Systems. (5) Effective Ground-Fault Current Path. Electrical equipment and other electrically conductive mate . . .  
  250.30 Grounding Separately Derived Alternating-Current Systems  This Subsection was reworded and additional requirements added to contain the requirements for grounding multiple separately derived systems. This su . . .  
  250.32 Buildings or Structures Supplied with Feeder  This subsection added a new requirement and it reads: (B) Grounded Systems (2) Grounded (neutral) Conductor. Where (1) an equipme . . .  
  250.32 Two or More Buildings or Structures Supplied with Feeder  The rule now reads: (E) Grounding Electrode Conductor. The size of the grounding electrode conductor for a buil . . .  
  250.50 Grounding Electrode System  This section was completely revised to read: If available on the premises at each building or structure, all of the electrodes identified i . . .  
  250.54 Supplementary Grounding Electrodes  This section was revised to read: Supplementary grounding electrodes can be installed and they can be connected to the equipment grounding . . .  
  250.102 Equipment Bonding Jumpers  A new exception was added to this subsection and this subsection now reads: (E) Installation. The equipment bonding jumper can be installe . . .  
  250.104 Bonding of Piping Systems and Exposed Structural Steel  The word “interior” was deleted in this section. This section now reads: (A) Metal Water Piping (1) General Requirements.
  250.104 Bonding of Piping Systems and Exposed Structural Steel  An exception was added to this section. This section now reads: (A) Metal Water Piping (4) Separately Derived Systems. To preve . . .  
  250.104 Bonding of Piping Systems and Exposed Structural Steel  The word “interior” was deleted in this section. This section now reads: (B) Other Metal Piping Systems. Interior Me . . .  
  250.104 Bonding of Piping Systems and Exposed Structural Steel  The word “interior” was deleted and the sizing of the bonding jumper was changed from 250.122 to 250.66. This section now reads: . . .  
  250.118 Types of Equipment Grounding Conductors  This subsection was completely revised to read: (11) MC Cable. The outer metal sheath of smooth or corrugated tube type MC cable can serv . . .  
  250.146 Connecting Receptacle Grounding Terminal to Box  The first sentence of this rule in the 1999 NEC was revised to delete the words “or at.” This section now reads: (A) Surface M . . .  
  250.148 Continuity and Attachment of Equipment Grounding Conductors to Metal Boxes  This section was completely reworded to read: Where circuit conductors are spliced, or terminated on equipment within a box, any separate . . .  
  285.1 Scope  This Article covers the installation and connection requirements for TVSS that are permanently installed on premises wiring systems. Figure 285 . . .  
  285.21 Connection  Where a TVSS is installed, it must be connected as follows: (A) Location. (1) Service Supplied Building or Structure. A TVSS can be . . .  
  300.4 Protection Against Physical Damage  The word “listed” was added so that this subsection now reads: (B) Through Metal Framing Members. (1) Nonmetallic-Sheathed Ca . . .  
  300.5 Underground Installations  Replace the word “service laterals” with “service conductors,” so that this section now reads: (D) Protection from . . .  
  300.7 Raceways Exposed to Different Temperatures  The requirement for sealing against the flow of warm air to a colder section was completely reworded to read: (A) Sealing. Where po . . .  
  300.15 Boxes, Conduit Bodies, or Fittings – Where Required  This subsection was completely revised to read: (I) Enclosures. A box or conduit body is not required where a splice is made in a . . .  
  310.8 Locations  The text was revised to read: (D) Locations Exposed to Direct Sunlight. Insulated conductors and cables used where exposed to dir . . .  
  310.15 Ampacities for Conductors  A new exception was added and it reads: (B) Table 310.16 Ampacity (2) Adjustment Factors. (a) More than Three Current-Carrying Conductors . . .  
  314.22 Exposed Surface Extensions  The text was revised to read: Surface extensions from a flush-mounted box must be made by mounting and mechanically securing . . .  
  314.27 Outlet Boxes  The exception to the rule that required boxes used at luminaire or lampholder outlets be designed for the purpose was revised to read: (A) . . .  
  314.27 Outlet Boxes  A new subsection was added and it reads: (B) Maximum Luminaire Weight. Outlet boxes that are properly supported in accordance with . . .  
  314.27 Outlet Boxes  This subsection was revised to read: (D) Boxes for Ceiling Paddle Fan. Where a box is used as the sole support for a ceiling paddl . . .  
  320.17 Through or Parallel to Framing Members  The text was revised to read: AC cable installed through or parallel to framing members must be protected against physical damage f . . .  
  320.30 Securing and Supporting  The text was revised to read: (B) Unsupported. AC cable can be unsupported where the cable is: (1) Fished between concealed acces . . .  
  334.10 Uses Permitted  This subsection was completely revised to read: Type NM and NMC cables can be used in any of the following occupancies: (1) One and Two-Fa . . .  
  334.12 Uses Not Permitted  The following text was added. (A) Types NM, NMC, and NMS. Types NM, NMC, and NMS cables shall not be used as open runs in dropped o . . .  
  334.17 Through or Parallel to Framing Members  The text was revised to read: NM cable installed through or parallel to framing members must be protected against physical damage from penet . . .  
  338.10 Uses Permitted  The text was revised to read: (B) Branch Circuits or Feeders (4) Installation Methods for Branch Circuits and Feeders. (a) Interior Inst . . .  
  342.30 Securing and Supporting  This subsection was revised to read: (B) Supports (3) Vertical Risers. Exposed vertical risers for industrial machinery . . .  
  354.6 Listing Requirement  This new section reads: NUCC and its associated fittings must be listed for the purpose. Figure 354–1Intent: . . .  
  362.10 Uses Permitted  A new exception was added and it reads: (2) In buildings exceeding three floors. ENT must be installed concealed in walls, floors, . . .  
  362.10 Uses Permitted  An exception was added and it reads: (5) Above Suspended Ceiling. ENT can be installed above a suspended ceiling if the suspended ceiling . . .  
  376.23 Wireway Sizing  This section was revised to read: (A) Bending Radius. Where conductors are bent within a wireway, the wireway must be sized to mee . . .  
  376.23 Wireway Sizing  This section was revised to read: (B) Wireway Used as Pull Box. Where insulated conductors 4 AWG or larger are pulled thro . . .  
  392.3 Uses Permitted  This section was revised to read: Cable trays can be used as a support system for services, feeders, branch circuits, communication . . .  
  392.6 Installation  This section was revised to read: (J) Raceways, Cables, and Boxes Supported from Cable Trays. In industrial facilities where condi . . .  
  400.7 Uses Permitted  The word “stationary” was replaced with “utilization.” The subsection was revised to read: (A) Uses Permitted.
  400.8 Uses Not Permitted  This subsection was revised to read: Unless specifically permitted in 400.7, flexible cords and cables cannot be used for the following: ( . . .  
  404.8 Accessibility and Grouping  The text to this section was revised to read: (B) Voltage Between Adjacent Devices. Snap switches shall not be grouped or ganged i . . .  
  404.9 Provisions for Grounding Switch Faceplates  The text to this subsection was revised to read: (B) Grounding. Snap switches, including dimmer and similar control switche . . .  
  404.14 Rating and Use of Switches (including Dimmers)  This new subsection reads: (E) Dimmer. General use dimmer switches must only be used to control permanently installed incandescen . . .  
  406.8 Receptacles in Damp or Wet Locations  Parts of this section were revised to read: (B) Wet Locations (1) 15 and 20A Outdoor Receptacles. 15 and 20A, 125 and 250V rece . . .  
  406.8 Receptacles in Damp or Wet Locations  Parts of this section were revised to read: (B) Wet Locations (2) Other Receptacles. All other receptacles installed in a wet . . .  
  408.21 Grounded Conductor Terminations  Intent: This new section should ensure that grounded (neutral) conductors terminate within the panelboard to an individual terminal. This has b . . .  
  408.21 Grounded Conductor Terminations  Author’s Comment: If two grounded (neutral) conductors are connected to the same terminal, and someone removes one of the neutrals, . . .  
  430.52 Branch Circuit Short-Circuit Protection Device Rating  Table 430-152, which contains the maximum rating or setting of motor branch-circuit short-circuit and ground-fault protective devices, was relocated t . . .  
  430.62 Feeder Protection Device Rating  The first paragraph was revised to read: (A) Motors Only. A feeder supplying a specific fixed motor load(s) and consisting of cond . . .  
  430.102 Disconnect Means Location  This subsection and its exception were revised, and two Fine Print Notes were added. This subsection now reads: (B) Motor Disconnect.
  440.14 Location  A sentence was added to this section so that it now reads: Disconnecting means must be located within sight (within 50 ft) from and readily . . .  
  445.13 Ampacity of Generator Conductors  The first sentence of this section was revised: The ampacity of the conductors from the generator terminals to the first distribution devic . . .  
  500.2 Definitions  A new definition for Electrical and Electronic Equipment was added and it reads: Electrical and Electronic Equipment. Materials, f . . .  
  500.8 Equipment  Additional text was added to this subsection on the suitability of equipment and it reads: (A) Approval for Class and Properties. (1) Com . . .  
  501.5 Sealing and Drainage  A new exception No. 2 was added to read: (A) Conduit Seals, Class I, Division 1 (4) Boundary Seal. A sealing fitting must be inst . . .  
  505.21 Multiwire Branch Circuits  A new section covering the requirements for multiwire branch circuits located in Zone-classified systems reads: Multiwire Branch Circuits. . . .  
  511.3 Classifications of Locations  This exception was revised to read: (B) Classified Locations (1) Up to 18 inches Above the Floor. For each floor, the entire are . . .  
  511.3 Classifications of Locations  New subsection added for compressed natural gas and it reads: (B) Classified Locations (2) Within 18 in. of the Ceiling. Where C . . .  
  514.13 Disconnect for Maintenance and Service of Dispensing Equipment  This section was revised to read: Each dispensing device must be provided with a means to remove all external voltage sources, including fe . . .  
  517.13 Grounding of Receptacles and Fixed Electric Equipment in Patient Care Areas  The section was completely revised to read as follows: (B) Insulated Equipment Grounding Conductor. In areas used for patient care . . .  
  517.30 Essential Electrical Systems for Hospitals  A new subsection was added and it reads: (E) Receptacle Identification. The cover plates for receptacles, or receptacles supplied . . .  
  525.32 Grounding Conductor Continuity Assurance  A new requirement was added to require testing of the equipment grounding conductor. This new section reads: The continuity of the groundi . . .  
  527.3 Time Constraints  The word “Christmas” was replaced with “holiday” so this section now reads: (B) 90-Day Rule. Temporary ele . . .  
  527.4 General  A new sentence was added to this subsection, which reads: (J) Supports. Vegetation cannot be used for support of overhead spans of . . .  
  547.2 Definitions  The definition for an Equipotential Plane was revised to read: Equipotential Plane. An area where wire mesh or other conductive el . . .  
  547.5 Wiring Methods  This section was revised to require equipment enclosures, boxes, conduit bodies, and fittings installed in agricultural buildings to comply with the f . . .  
  547.5 Wiring Methods  The GFCI requirements for agricultural buildings were revised to read: (G) Receptacles. All 15 and 20A, single-phase 125V general- . . .  
  550.25 Arc-Fault Circuit Interrupter Protection  A new subsection was added and it reads: (B) Bedrooms of Mobile Homes and Manufactured Homes. All branch circuits that supply 15 an . . .  
  555.2 Definitions  A new definition for Electrical Datum Plane was added and it reads: Electrical Datum Plane. The electrical datum plane is defined as . . .  
  555.17 Boat Receptacle Disconnecting Means  The requirement for the boat disconnecting means was completely revised to read: (B) Location. The disconnecting means for a boat . . .  
  555.19 Boat Receptacle  New text was added and it reads: (A) Boat Receptacles (4) Ratings. Receptacles that provide shore power for boats must be rated n . . .  
  600.21 Ballasts, Transformers, and Electronic Power Supplies  This subsection was revised to read: (F) Suspended Ceilings. Ballasts, transformers, and electronic power supplies are permitted to . . .  
  604.6 Construction  This section was completely revised to read: (E) Support. Manufactured wiring systems must be supported in accordance with the re . . .  
  640.6 Mechanical Execution of Work/Cable Support  The text to this section was revised to read: Equipment and cabling must be installed in a neat and workmanlike manner. Cables installed e . . .  
  645.5 Supply Circuit and Interconnecting Cables  This subsection was revised to read: (D) Under Raised Floors (2) Branch Circuit Supply Conductors. The branch-circuit supply cond . . .  
  Article 647 Sensitive Electronic Equipment Power or Balanced Power Systems  A new Article covering the wiring requirements for “Sensitive Electronic Equipment Power or Balanced Power Systems” was added to the 2002 . . .  
  680.8 Overhead Conductor Clearances  A new subsection was added, which reads: (B) Communications Systems. Communication cables such as telephone, radio, and CATV cabl . . .  
  680.8 Overhead Conductor Clearances  A new subsection was added, which reads: (C) Network-Powered Broadband Communications Systems. Overhead network-powered broadband . . .  
  680.12 Maintenance Disconnecting Means  The word “maintenance” was added to the heading and the text was revised to read: One or more means to disconnect all . . .  
  680.22 Area Lighting, Receptacles, and Equipment  A new item (4) was added and it reads: (A) Receptacles (4) Restricted Space. One 15 or 20A, single-phase, 125V receptacle can be . . .  
  680.22 Area Lighting, Receptacles, and Equipment  This subsection was revised to read: (A) Receptacles (5) GFCI Protection. All 125V receptacles located within 20 ft. of the insid . . .  
  680.26 Bonding  This section was revised to read: (B) Bonding Together (1) Metallic Parts of Pool Structure. All metallic parts of the water stru . . .  
  690.14 Additional Provisions  A new subsection was added and it reads: (C) Requirements for Disconnecting Means. Means must be provided to disconnect all conduct . . .  
  690.56 Identification of Power Sources  A new section was added to Article 690 to cover the identification requirements for photovoltaic power systems supplying buildings, or structures or b . . .  
  700.12 General Requirements  A new subsection was added and it reads: (B) Generator Set (6) Disconnect. Where an outdoor-housed generator for emergency circui . . .  
  701.11 Legally Required Standby Systems  This subsection was revised to read: (E) Connection Ahead of Service Disconnecting Means. Where acceptable to the Authority Having . . .  
  702.1 Scope  The second paragraph was revised to read: The systems covered by this Article consist of those that are permanently installed, including pr . . .  
  702.10 Portable Generator Grounding  A new section was added for grounding portable generators, which reads: (A) Separately Derived Systems. If the transfer switch for . . .  
  702.10 Portable Generator Grounding  A new section was added for grounding portable generators, which reads: (B) Nonseparately Derived System. If the transfer switch fo . . .  
  725.3 Locations of Other Articles  The following requirement was added: (B) Spread of Fire or Products of Combustion. The accessible portion of abandoned Class 2, Cla . . .  
  725.6 Mechanical Execution of Work  The text to this section was revised to read: Class 1, Class 2, and Class 3 circuits must be installed in a neat and workmanlike manner. Ca . . .  
  800.6 Mechanical Execution of Work  The text to this section was revised to read: Communications circuits must be installed in a neat and workmanlike manner. Cables installed . . .  
  800.40 Cable and Primary Protector Grounding  New text was added to improve the grounding of Communications systems, it now reads: The metallic member(s) of the cable sheath, where requi . . .  
  800.52 Locations and Other Articles  The text to this subsection was revised to read: (B) Spread of Fire or Products of Combustion. Installations in hollow spaces, ver . . .  
  810.21 Grounding Conductors – Receiving Stations  The text to this subsection was revised to read:(F) Electrode. The grounding conductor as required by 810.14 and 20 must be connected . . .  
  820.33 Grounding of Outer Conductive Shield of a Coaxial Cable  The text to this section was revised to read: The outer conductive shield of the coaxial cable must be grounded at the building premises as . . .  
  820.40 CATV Cable Grounding  New text was added to improve the grounding of CATV systems, it now reads: Where required by 820.33, the shield of the coaxial cable shall b . . .  
  830.40 Cable, Network Interface Unit, and Primary Protector Grounding  New text was added to improve the grounding of Network-Powered Broadband Communications systems, it now reads: Network interface units conta . . .  
  Chapter 9, Table 4 Dimensions and Percent Area of Conduit and Tubing  A 60 percent fill column was added for use with wire fill calculations for conduit or tubing nipples. Intent: Note 4 to Table 1 of Chapter 9 . . .  
  Annex C – Conduit and Tubing Fill Tables for Conductors and Fixture Wires  A table of contents was added for this table: TablePage C1 ― Electrical Metalli . . .