1	2005 NEC Changes
2	Instructions for Completing This Course for Credit
3	Copyright Notice The NEC® and National Electrical Code® are registered trademarks of the National Fire Protection Association. Where possible, the word "Code" is used in place of NEC®.
4	Article 80 Moved from Front of Code to Annex G
5	Annex G Reviewed
6	Article 527 Moved to Article 590
7	Manhole, Vaults, Tunnel requirements moved from Article 314 (Boxes Article) to Article 110 Part V
8	Four New Articles Added
9	90.2(B) Scope – Not Covered NEW Fine Print Note Added A new FPN explains the types of utilities that are not covered by the Code and where more information can be obtained. Generally, utilities are designated or recognized by a state and/or Federal authority including the FCC, public service or utility commissions, and FERC. These regulatory bodies may also have additional information on what constitutes a utility.
10	90.5(C) Explanatory Material NEW paragraph explains that bracketed text containing section references to other NFPA documents provides the source for extracted text and is for informational purposes only.
11	Article 100: NEW Definition “Bonding Jumper, System” 100 Definitions: Bonding Jumper, System The connection between equipment grounding conductor and the grounded circuit conductor at a separately derived system.
12	Article 100: NEW Definition “Coordination (Selective)” This new definition defines this term as localization of an overcurrent condition to restrict outages to the circuit or equipment affected. This task is performed by the selection of overcurrent devices and their settings or ratings.
13	100 NEW Definition - Device A unit in an electrical system that intended to carry or control but not utilize electric energy.
14	Article 100: New Definition “Grounding Electrode” A device that establishes an electrical connection to earth.
15	Article 100: Revised Definition for “Grounding Electrode Conductor” The definition no longer limits the use to services and separately derived systems but now includes buildings and structures when supplied by feeders or branch circuits.
16	100 NEW Definition of Guest Room A living space that combines living, sleeping, sanitary, and storage facilities within a compartment.
17	100 NEW Definition of Guest Suite A living space with two or more contiguous rooms making up a compartment, with or without doors between them, that provides living, sleeping, sanitary, and storage facilities
18	New Fine Print Note added to Definition of Qualified Person Refer to NFPA 70E-2004 for electrical safety training requirements
19	Example of NFPA 70E Requirements Insertion or removal of individual starter “buckets” in a hot 480 volt MCC has a Hazard/Risk Category 3 rating. This rating requires: FR rated: long sleeve shirt, pants, coveralls, hard hat, hard hat liner, and parka if required. Leather shoes, hearing protection, and a double layer switching hood for face protection. V-rated gloves Testing the voltage at 277 volts or 480 volts has a Hazard/Risk Category 2 rating with conditions. This rating requires: FR rated: hard hat, long sleeve shirt, pants, and coveralls. Double layer switching hood and hearing protection V-rated gloves. Leather shoes
20	New Fine Print Note added to 110.12 Mechanical Execution of Work FPN: Neat and Workmanlike accepted industry practices are described in ANSI/NECA 1-2000 and other ANSI approved standards.
21	Example of ANSI/NECA 1 -2000 Requirements
22	Example of ANSI/NECA 1 -2000 Requirements
23	110.26(C)(2) Large Equipment Over 6 feet long requirement removed
24	200.6(D) Grounded Conductor of Different Systems slide 1 of 2
25	200.6(D) Grounded Conductor of Different Systems slide 2 of 2
26	210.5(C) NEW Identification of Branch Circuits slide 1 of 2
27	210.5(C) Identification of Branch Circuits slide 2 of 2
28	210.6(D)(2) 600 Volts Between Conductors Circuits exceeding 277 volts to ground and not exceeding 600 volts between conductors cannot be used to supply Luminaires unless provisions of 210.6(D)(2) are met (Requires a height of 18 or 22 feet.)
29	210.8(A)(7) GFCI Required GFCI protected Receptacle now required if within 6 feet of outside edge of utility, laundry, or wet bar sink in Dwelling Units
30	210.8(B)(2) GFCI’s in Other Than Dwelling Unit Kitchens – Kitchen is now Defined
31	210.8(B)(4) NEW GFCI In other than Dwelling Units (There is an exception for snow-melting and deicing equipment.)
32	210.8(B)(5) NEW In other than dwelling units receptacles required by 210.63 shall be GFCI protected 210.63 Heating, Air-Conditioning, and Refrigeration Equipment Outlet. The 125-volt, single-phase, 15- or 20- ampere-rated receptacle outlet installed at an accessible location for the servicing of heating, air conditioning, and refrigeration equipment shall be GFCI protected. This receptacle shall be located on the same level and within 25 ft of the heating, air-conditioning, and refrigeration equipment. The receptacle outlet shall not be connected to the load side of the equipment disconnecting means.
33	210.8(C) NEW Dwelling Unit Boat Hoist Outlets shall be GFCI Protected 125 – Volt, 15 - and 20 - ampere branch circuit used to supply boat hoist outlets shall be GFCI protected.
34	210.12(B) Arc-Fault Circuit Interrupter Protection for ALL OUTLETS in Dwelling Unit Bedrooms to be by a listed Combination Type by January 1, 2008
35	210.12(B) NEW Exception for Location of Arc Fault Circuit Interrupter Protection
36	210.18 NEW Section added covering receptacle outlets and Branch circuits for Guest Rooms and Guest Suites Guest Rooms and Guest Suites that have Permanent provisions for cooking shall be provided with branch circuits and outlets meeting Dwelling Unit Rules
37	210.19(A)(3) Exception No. 1 Household Ranges and Cooking Appliances NEW 20 ampere minimum rated taps to 40 or 50 ampere circuit for supplying range tops and wall mounted ovens also applies to appliance pigtails supplied with the appliance.
38	210.52(C)(1) New Exception - Dwelling Unit Kitchen Counter Top Receptacle Outlet Requirements
39	210.52(C)(1) New Exception - Dwelling Unit Kitchen Counter Top Receptacle Outlet Requirements
40	210.52(D) NEW Exception: Location added for Receptacle in Dwelling Unit Bathrooms New Location added to allow the receptacles that are required to be adjacent to the bathroom basin and within 3 feet of the outside edge of the basin sink to be installed on the wall, on an adjacent partition or (NEW) on the Side or Face of the basin cabinet.
41	210.52(E) Outdoor Receptacle Outlets At least one outdoor Receptacle is required at front and back for one family, two family, and mutifamily dwelling units that are at grade level and that have individual exterior entrance/egress.
42	210.63 Exception: For one and two family Dwellings - No Receptacle required for servicing Evaporator Coolers Service Receptacle within 25 feet still required for servicing air conditioning, heating, and refrigeration equipment
43	210.70(B) Lighting Outlets Required in Guest Rooms and Guest Suites – two new exceptions General Requirement: One wall switch controlled lighting outlet required in every habitable room and bathroom.
44	NEW 215.12(A), (B), and (C) Identification for Feeders slide 1 of 2
45	215.12 Identification for Feeders slide 2 of 2
46	220.1 Organization of Article 220 Article 220 has been restructured and Figure 220.1 has been added
47	220.3 New Table lists other Articles having Load Related Calculations
48	220.14(K) NEW Section for Receptacle Load Calculations for Office Buildings and Banks Banks and Office Buildings. In banks or office buildings, the receptacle loads shall be calculated to be the larger of (1) or (2): (1) The computed load from 220.14 (2) 1 volt-ampere/square foot
49	220.82(C)(2) and (4) Rules changed for calculating Heat Pump Loads Two new options added for a total of six. The largest of the six calculations shall be used for determining the heating and air conditioning load under the optional feeder and service load calculation for dwelling units. (2) Take 100 percent of heat pump load when there is no supplementary electrical heater (4) Take 100 percent of heat pump load plus 65 percent of supplementary electric heating load when both can come on at same time
50	225.16 and 225.17 Some Rules for Attaching of Outside Branch Circuits and Feeders to Buildings is same as Services Installation rules are required to be same as found in 230.26 (225.16(A)) and 230.27 (NEW - 225.16(B)) for services 230.26 Requires same minimum clearances from ground as services 230.27 Requires fittings identified for use
51	225.22 Raceways on Exterior Surfaces of Buildings or Other Structures - modified Raceways on the exterior of buildings or other structures shall be arranged to drain and (NEW) shall be required to be raintight only where installed in WET locations.
52	225.30(A)(6) New Special Condition for allowing more than one feeder or branch circuit to supply building or other structure (6) Additional feeders or branch circuits shall be permitted to supply buildings or other structures for the (6) purpose of enhanced reliability
53	230.2(A)(6) New Special Condition for allowing more than one Service to supply building or other structure (6) Additional Services shall be permitted to supply buildings or other structures for (6) the purpose of enhanced reliability
54	230.9 Clearances ON Buildings The word FROM in the 2002 Code was replaced with the word ON in the 2005 Code
55	230.44 Use of Cable Trays for Service – Entrance Conductors Cable trays used to support service entrance conductors shall contain only service entrance conductors.
56	230.54(C) Service Heads and Goosenecks above service-drop attachment The word Gooseneck has been added
57	230.71(A) Maximum Number of Disconnects
58	230.72(B) NEW – Emergency Service Disconnecting means added as required to be remote from normal service disconnecting means Remote location required for fire pumps, legally required standby, or optional standby services, and (NEW) emergency systems
59	230.82(3) Equipment Connected to the Power Supply side of Service Disconnect revised
60	230.82(8) Equipment permitted on line side of Service Disconnect
61	240.2 Supervised Industrial Installations Feeder added to item 3
62	240.20(B) Circuit Breakers used as overcurrent devices
63	240.21(B) Feeder Taps (No Rounding up allowed)
64	240.21(C)(1) through (6) Rules apply to each set of conductors feeding separate loads NEW - Each Set of Secondary Conductors are allowed to connect to the transformer without overcurrent protection at the secondary if the rules in 240.21(C)(1) through (6) are followed.
65	240.21(C) Transformer Taps (No Rounding up allowed)
66	240.21(C)(2)(1)(c) New Rules for Transformer Secondary Conductor ampacity using 10 foot Tap Rule Not longer than 10 feet Secondary conductor ampacity not less than: (a) Combined computed loads (b) Rating of device supplied by secondary conductors (b) Rating of OCPD at termination of conductors (c) NEW Secondary Conductor Ampacity is not less than 1/10 x Rating of Primary Overcurrent Device (OCPD) x Ep/Es Where: Ep is primary voltage of transformer Es is secondary voltage of transformer
67	Example 240.21(C)(2)(1)(c) NEW 10 Foot Tap Rule Is (Secondary Conductor Ampacity ) => Ep/Es x 1/10 x rating of primary OCPD Is => 480/208 x 1/10 x 100 Is => 23 amperes; By 310.15 for 75 degrees C. No. 12 copper is rated at 25 amperes Secondary OCPD shall be less than or equal to 25 amperes or 25 amperes per 240.6 Note: => means greater than or equal to or not less than
68	240.24(A) Accessibility (for Circuit Breakers)
69	240.60(D) (New) Class H Renewable fuses only allowed as replacements in existing installations where there is no evidence of tampering or overfusing Unlike most fuses, renewable fuses do require some maintenance. Due to the design factors, and a corresponding lack of maintenance, renewable fuses present a higher than normal risk for equipment damage and fires. If the maintenance for these fuses is completed routinely, then many of the failures due to renewable fuses would be less likely to occur.
70	240.86(A), (B), and (C) Series Rating for Existing Installations When a circuit breaker having an interrupting current rating lower than that which is available is used on the load side of a circuit protected by an acceptable circuit breaker with a higher interrupting rating the (A) series rated combination devices shall be selected by a licensed professional engineer engaged in the maintenance or design of the installation or (B) shall be a tested combination.
71	240.92(B)(1)(2) NEW Fine Print Note on Differential Relays For Supervised Industrial Locations Only
72	Article 250 Title changed to “Grounding and Bonding” This change more accurately describes Article 250. Article 250 has rules for both.
73	250.8 Sheet Metal Screws are not allowed for fastening grounding and bonding equipment Most electricians already know you can’t get a tight metal to metal connection with sheet metal screws unless you are using them on sheet metal. The metal used for electrical boxes and enclosures is too thick! Thread forming screws with machine threads are acceptable.
74	240.21 Where AC Systems are not grounded, Ground Detectors are required Exception: Systems of less than 120 volts to ground are not required to have ground detectors.
75	250.28 (Revised) Now covers Main Bonding Jumper and System Bonding Jumper New definitions separate the two
76	250.30(A) on Grounding Separately Derived Grounded Systems has been totally reorganized This is another change brought about by a Task Group that studied the issue and made recommendations.
77	250.30(A)(2) Sizing Equipment Bonding Jumpers Addresses the problem of sizing equipment bonding jumpers for parallel derived phase conductors in parallel raceways by referring to 250.102(C). 250.102(C) Where the service-entrance conductors are paralleled in two or more raceways or cables, the equipment bonding jumper, where routed with the raceways or cables, shall be run in parallel. The size of the bonding jumper for each raceway or cable shall be based on the size of the service-entrance conductors in each raceway or cable using Table 250.66.
78	250.30(A)(2) Sizing Equipment Bonding Jumpers
79	250.30(A)(4) Multiple Separately Derived Systems with a Common Grounding Electrode Conductor
80	250.32(A) Exception Where a single branch circuit or multiwire branch circuit includes an equipment grounding conductor and supplies a separate building or structure a grounding electrode is not required.
81	250.34 Portable and Vehicle Mounted Generators Reference to frame as a grounding electrode has been removed
82	250.50 Grounding Electrode System New wording removes the phrase “if available” and replaces it with “that are present.” If the list of six electrodes are present they are required to be bonded together to form a grounding electrode system.
83	250.52(A)(2) Metal Frame of Building or Structure used as grounding electrode There are now four specific conditions that permit a metal frame to be used as a grounding electrode. The subjective phrase “where effectively grounded” has been removed. Below illustrates one condition.
84	250.52(A)(2) Metal Frame of Building or Structure used as grounding electrode There are now four specific conditions that permit a metal frame to be used as a grounding electrode. The subjective phrase “where effectively grounded” has been removed. Below illustrates another condition.
85	250.52(A)(7) Other Underground Systems or Structures that can be used as a grounding electrode (7) Other Local Metal Underground Systems or Structures. Other local metal underground systems or structures such as piping systems, underground tanks, and underground metal well casings THAT ARE NOT effectively bonded to a metal water pipe.
86	250.64(C) Continuous (grounding electrode conductor) NEW (3) Bonding jumpers from grounding electrodes and grounding electrode conductors are permitted to be connected to copper or aluminum busbar(s) not less than ¼ inch by 2 inches. The busbar(s) shall be accessible The busbar(s) shall be secured Connections shall be by listed connectors or by exothermic welding
87	250.64(F) Grounding Electrode Conductor Installation to Electrode(s) (F) To Electrode(s). A grounding electrode conductor shall be permitted to be run to any convenient grounding electrode available in the grounding electrode system, or to one or more grounding electrode(s) individually, (NEW) or to the aluminum or copper busbar as permitted in 250.64(C). The grounding electrode conductor shall be sized for the largest grounding electrode conductor required among all the electrodes connected to it.
88	250.68(A) NEW Exception No. 2 to accessibility requirement to grounding electrode connections An irreversible compression or exothermic welded connection to fireproofed structural metal shall not be required to be accessible.
89	250.118(5)d Flexible Metal Conduit – used for grounding NEW Where used to connect equipment where flexibility is necessary after installation an equipment grounding conductor shall be installed.
90	250.118(6)e Liquidtight Flexible Metal Conduit – used for grounding NEW Where used to connect equipment where flexibility is necessary after installation an equipment grounding conductor shall be installed.
91	250.146(A) Grounding a Surface Mounted Metal Box to Device with a Yoke Required to remove at least one of the insulating washers to get good metal to metal contact.
92	280.4(A) Surge arrestors not permitted on these systems unless specifically listed for the application High Impedance Grounded, Ungrounded, and Corner Grounded Delta
93	285.3(2) TVSS not permitted on these systems unless specifically listed for the application High Impedance Grounded, Ungrounded, and Corner Grounded Delta
94	300.3(A) NEW Exception: Individual conductors listed in Table 310.13 shall be permitted to be run overhead as separate conductors in accordance with 225.6 Individual conductors without messenger support
95	300.4(A)(1) NEW Exception No. 2 Steel Nail Plates can be less than 1/16 inch thick if listed and marked.
96	300.4(A)(2) Notches in Wood NEW Steel Nail Plates shall cover the area of the wiring.
97	300.4(D) Protection against physical damage Furring strips added to list of places where protection may be required. If cable and raceways cannot be installed so that they are a minimum of 1 ¼ inch from the nearest edge of the framing member or furring strip then steel plates are required to protect both cables and raceways.
98	300.15(L) Manholes and Handholes NEW Where accessible only to qualified persons boxes and other wiring enclosures such as condulets are not required for conductors in Manholes and Handholes
99	300.18(A) (NEW) Exception In general raceways are required to be installed as a complete system. A new exception permits short sections of raceways to be used as sleeves for providing physical protection for conductors and cables.
100	300.22(B) Ducts and Plenums No Liquidtight Flexible Metal conduit or any nonmetallic boxes, raceways, or condulets allowed inside ducts and plenums
101	310.4 Conductors in Parallel “to form a single conductor” removed. Each individual conductor shall be counted when performing derating for ampacity calculations.
102	310.4 Conductors in Parallel The same number of conductors shall be in each raceway or cable
103	310.8(D) Locations Exposed to Direct Sunlight NEW Covering used where exposed to sunlight such as tape, sleeving, (or connectors) shall be listed or listed and marked as being sunlight resistant.
104	310.10 Temperature Limitation of Conductors NEW Fine Print Note
105	310.15(B)(2)(a) Ampacity adjustment factors NEW Each current carrying conductor of parallel conductors shall be counted when calculating ampacity.
106	312.2(A) Damp and Wet Locations NEW sentence added: For enclosures installed in wet locations cables or raceways entering above the level of live uninsulated parts shall use fittings listed for wet locations.
107	Article 314 Scope now includes Handhold Enclosures Manholes has been relocated to Part V of Article 110.
108	314.16(B)(1) Conductor Fill NEW Rule – Count Looped conductors as two!
109	314.23(B)(1) Nails and Screws Screws cannot be used through boxes unless the threads are protected inside the box to avoid abrasion of conductor insulation.
110	314.27(D) Boxes for ceiling paddle fans Requirements for boxes used to support ceiling-suspended paddle fans moved from 422.18 to 314.
111	314.30 Handhold Enclosures NEW Section with rules for handhold enclosures
112	320.10 (Type AC Cable), 328.10 (Type MV Cable), 330.10 (Type MC Cable), and 332.10 (Type MI Cable) New Fine Print Note – The Uses Permitted is not an all-inclusive list. The list of uses permitted does not include every condition or location where these cables can be used.
113	320.80(A) Ampacity – Thermal Insulation Type AC Cable 90 Degree C. ampacity rating can be used for derating purposes provided the calculated ampacity is not greater than that for a 60 Degree C. rated conductor
114	330.17 Metal Clad Cable through or parallel to Framing Member Bushings or grommets not required
115	334.15(C) Exposed NM Cable in Unfinished Basements Two new requirements and one new permission
116	340.112 Insulation Where type UF cable is used as a substitute for NM cable it shall have a 90 Degree C. insulation
117	342.22, 344.22, 348.22, 350.22, 352.22, 353.22, 356.22, 358.22, 360.22, 362.22, and 388.22 Cables shall be permitted installed in raceways unless specifically not permitted by the respective cable article Cables permitted in raceways unless the respective cable article prohibits this installation
118	342.30(B)(3) (for IMC) and 344.30(B)(3) for RMC Exposed vertical risers from industrial machinery or fixed equipment shall be permitted to be supported at intervals not exceeding 6 m (20 ft), if the conduit is made up with threaded couplings, the conduit is supported and securely fastened at the top and bottom of the riser, and no other means of intermediate support is readily available.
119	Radius of Bend for Conduit and Tubing moved to Chapter 9, Table 2. The radius of the curve of any field bend to the centerline of the conduit shall not be less than indicated in the respective Table 2, Chapter 9
120	348.30(A) (Flexible Metal Conduit) Exception No. 4 and 350.30(A) Exception No. 4 (Liquidtight Flexible Metal Conduit) Exception No. 4 This same rule was added to the 2002 Code for AC and MC cable
121	348.30(A) Exception No. 2 General Rule: Support Flexible Metal Conduit within 12 inches of termination. Where flexibility is required new exception allows varying support distances for different sizes
122	352.2 Definition of Rigid Nonmetallic Conduit Cables added to definition
123	352.10(H) Support of Conduit Bodies Wording revised to reflect new definition of device to allow splicing devices in conduit bodies
124	352.12(E) NEW Exception to Insulation Temperature Limitations Temperature rating of conductors or cables installed in rigid nonmetallic conduit allowed to be higher than temperature rating of Rigid Nonmetallic Conduit if conductors are operated at the lower temperature rating
125	NEW Article 353 High Density Polyethylene Conduit: Type HDPE Conduit New article covers HPE that was previously under article 352 – PVC Conduit.
126	NEW Article 353 High Density Polyethylene Conduit: Type HDPE Conduit Highlights of Article
127	356.42 Liquidtight Flexible Nonmetallic Conduit (LFNC) Fittings! Only fittings listed for use with LFNC shall be used with LFNC
128	356.42 Liquidtight Flexible Nonmetallic Conduit (LFNC) Fittings! Do not use liquidtight flexible metal conduit fittings with liquidtight flexible nonmetallic conduit unless the FITTINGS are listed for the purpose. It does not matter what the conduit manufacturer prints on the labels.
129	356.42 Liquidtight Flexible Nonmetallic Conduit (LFNC) Straight fittings Listed Straight Fittings are permitted for encasement in concrete and for direct burial.
130	362.12 Uses Permitted for Electrical Nonmetallic Tubing (ENT) Cables and conductors installed in ENT cannot operate at a higher temperature than the temperature rating of the ENT
131	362.30(A) Exception No. 2 General rule: ENT shall be securely fastened in place within 3 feet of each outlet box, device box, junction box, cabinet, or fitting where it terminates. Exception No. 2: No support required for Lengths not exceeding 6 feet from the last point of support where securely fastened to luminaires or other equipment within accessible ceilings.
132	366.58(A) Deflected Insulated Conductors Use the One Wire per Terminal column when applying table 312.6(A)
133	366.58(B) NEW - Auxiliary Gutters used as Pull Boxes No. 4 AWG and larger conductors pulled through an auxiliary Gutter shall comply with 314.28(A)(1) for straight pulls and 314.28(A)(2) angle pulls.
134	376.23(A) and 378.23(A) Deflected Insulated Conductors Use the One Wire per Terminal column when applying table 312.6(A)
135	376.23(B) Metallic Wireways and 378.23(B) Nonmetallic Wireways used as Pullboxes When transposing cable size to raceway size the minimum size raceway required to contain the conductors in the cable shall be used
136	376.56(B) Splices and Taps, and NEW Power Distribution Blocks NEW Section added for power distribution blocks Blocks shall be listed and installed per instructions
137	376.56(B)(3) Example Wire Bending Space at Power Distribution Blocks Example - Using the One Wire per Terminal column and applying table 312.6(B)
138	386.30 Securing and Supporting Surface Metal Raceways NEW Secure and support at intervals in accordance with the manufacturer’s installation instructions
139	386.70 Combination Surface Metal Raceway and 388.70 Combination Surface Nonmetallic Raceways Revision Sharply contrasting colors replaced with identified by stamping, imprinting, or color coding of the interior finish
140	392.11(B)(3) Exception NEW Ampacity of single conductors installed in solid bottom cable tray shall be determined under engineering supervision per 310.15(C) (uses Neher-McGrath calculation.)
141	400.5 Ampacity for Flexible Cords and Cables For flexible cords used in ambient temperatures above 30 Degrees C. ambient correction factors from the Table 310.16 shall be applied.
142	400.8(7) NEW Flexible Cords cannot be used where subject to physical damage. Determination of when a cord is subject to physical damage can be made by the authority having jurisdiction.
143	400.14 NEW Flexible Cord can be run in above ground raceways for up to 50 feet Conditions: To provide physical protection In industrial establishments Qualified person(s) service the installation Derating shall be applied to the ampacity in accordance with Table 400.5 when there are more than three current carrying conductors in a raceway
144	404.6(A) and (B) Position and connection of switches Double throw and Single throw switches approved for use so that they can be in the on position when the blades are down (inverted position) shall be provided with an integral mechanical means to hold the blades in the open position
145	404.7 Switch Indicating Position NEW Exception No. 2 General Rule: Switches shall be on in the up position Exception No. 2 Permits Busway Tap switches employing a center-pivoting handle to be on in the up or down position as long as they are indicating and are visible from the floor or from the usual point of operation
146	404.8(B) Voltage between adjacent switch devices The voltage between adjacent switching devices shall not exceed 300 volts unless identified barriers are securely installed between the devices.
147	404.9(B) Exception General Rule: A snap switch that is installed as a replacement only where there is no equipment grounding conductor available shall have a nonconducting faceplate when accessible from the earth, grade conducting floors or other conducting surfaces or NEW: A metal faceplate can be used if the circuit is protected by a ground fault circuit interrupter.
148	406.6(B) Attachment Plugs No receptacle shall be installed so as to require the (new) insertion of an energized plug as its source of supply. Receptacles shall not be energized from a plug.
149	406.6(D) NEW Flanged Surface Inlet NEW A flanged Surface Inlet (commonly called a flanged inlet receptacle) shall be mounted so the prongs, blades, or pins are not energized unless an energized cord connector is inserted into it.
150	406.8(B)(1) Receptacles in Damp Wet Locations – (NEW) Indoors or Outdoors The word Outdoor has been omitted. Now Receptacles in damp or wet locations shall have an enclosure that is weatherproof whether or not the attachment plug cap is inserted. This means that receptacles in indoor or outdoor locations require weatherproof enclosures if in a wet location.
151	NEW Article: Article 409 Industrial Control Panels New Article 409 is comparable to UL standard 508A but not nearly as long This Article contains some requirements for the construction of industrial control panels used to control motors and nonmotor loads or a combination of the two
152	Highlights Article: Article 409 Industrial Control Panels 409.20 Minimum size for conductors 409.21 Overcurrent Protection for Industrial Control Panel 409.30 Disconnecting means 409.60 Grounding requirements 409.104 Wiring Space in Panels 409.110 Marking – Extensive marking requirements included
153	410.1 Scope – Decorative Lighting added to Scope Decorative lighting products and accessories for temporary seasonal and holiday use now covered by Article 410.
154	410.4(D) Bathroom and Shower Areas The term “hanging luminaires” replaced with “chain, cable, or cord-suspended luminaires (fixtures)”
155	410.4(D) Bathroom and Shower Areas NEW Luminaires allowed in restricted zone if listed for damp locations or for showers they shall be listed for wet locations
156	410.4(E) NEW Luminaires in Indoor Sports, Mixed use, and All Purpose Facilities In indoor sports, mixed use and all purpose facilities Luminaires subject to physical damage, using a mercury vapor or metal halide lamp, installed in playing or spectator seating areas shall have Lamps protected by a plastic or glass lens. Such fixtures shall be permitted to also have an additional guard.
157	410.14(B) Access to Boxes When surface mounted electrical discharge luminaires are mounted over a concealed box and are not designed to be supported solely by the box, access shall be provided to the wiring in the box by a suitable opening in the back of the luminaire.
158	410.15(B) Nonmetallic Poles added Metal or Nonmetallic poles are now covered by this section
159	410.18(B) NEW Exception No. 2 Replacing Luminaires on Two Wire Circuits (no grounding conductor)
160	410.73(F)(5) NEW Metal Halide lamp Containment Luminaires that use metal halide lamps other than PAR types shall be provided with a containment barrier that encloses the lamp or shall only accept only Type “O” lamps
161	410.73(G) NEW Disconnecting Means for indoor Fluorescent Luminaires in other than dwellings Luminaires that utilize double ended lamps and contain ballasts that can be serviced in place or ballasted luminaires that are supplied from multiwire branch circuits and contain ballasts that can be serviced in place shall have a disconnecting means that disconnects simultaneously from the source of supply all conductors of the ballast including the grounded conductor if any.- Effective Date January 1, 2008. There are 5 Exceptions including hazardous locations, emergency illumination, and Industrial locations with restricted public access and serviced by qualified personnel.
162	410.110 Listing Required for Decorative Lighting Decorative lighting and similar accessories used for holiday lighting and similar purposes that are permitted for a period to not exceed 90 days per 590.3(B) shall be listed.
163	411.4 Locations where low voltage lighting is not permitted General rule: This section states that systems operating at 30 volts or less shall not be installed where concealed or extended through building walls.
164	422.12 Exception No. 2 to rule that Central Heating equipment other than fixed electric shall be supplied by an individual circuit Air Conditioning Equipment that is permanently installed is permitted to be supplied by the same branch circuit as the central heating equipment.
165	422.16(B)(4) NEW Specific Appliances – Range Hoods New section addresses the use of flexible cords for connecting range hoods.
166	422.31(B) Disconnecting Means shall be Permanent When required the disconnecting means for permanently installed appliances rated more than 300 volt-amperes or 1/8 horsepower shall remain in place after the lock is removed.
167	422.51 NEW Cord and Plug Connected Vending Machines After January 1, 2005 are required to be GFCI protected
168	424.6 NEW Listed Equipment All the fixed electric space heating equipment shown below is required to be listed and labeled.
169	430.2 NEW Two Definitions added: Adjustable Speed Drive and Adjustable-Speed Drive System An adjustable Speed Drive is a combination of power converter, motor, and auxiliary devices while an Adjustable Speed Drive System is an interconnected combination of equipment that provides a means of adjusting the speed of a mechanical load coupled to a motor.
170	430.2 NEW Two Definitions added: Adjustable Speed Drive and Adjustable-Speed Drive System More Examples – Variable Frequency Drives used to control coal handling conveyers in a power plant that are part of an adjustable speed drive system.
171	430.2 Definition of Motor Controller and Motor Control Circuit moved to 430.2 xxx.2 is the definition section for Articles in the Code
172	430.7(A)(9) Design Letter E removed from Code Energy efficient Motors are Design B. Design E motors were never manufactured.
173	430.7(A)(15) Marking on Motors and Multimotor Equipment Where motors are equipped with condensation prevention heaters the motor shall be marked with the rated heater voltage, rated power in watts, and number of phases
174	430.8 Marking on Controllers The requirements to mark the short-circuit current rating on controllers has been added. There are 4 Exceptions.
175	430.245(B) Separation of Junction Box from Motor Stranded conductors are required where MC or AC cable is used where junction box is up to six feet away. Only interlocked type MC is allowed to be used for this purpose.
176	430.251(B) NEW Note added for Design A Motors Note 2: Motors that are Design A are not limited to a maximum starting current or locked rotor current.
177	450.5 Grounding Autotransformers A new sentence added requiring that ZigZag transformers shall not be connected to the load side of any system grounding connection
178	500.1 NEW FPN Limiting Scope of Article Article 500 does not cover hazards associated with Explosives, Pyrotechnics, and Blasting Agents
179	500.1 NEW FPN No. 1 Limiting Scope of Articles 501 through 504 These Articles do no