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• |
Global Changes. |
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• |
90.1 & 2 NEC Scope, Use and Application. |
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• |
90.4 Enforcement. |
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• |
90.5(C) Explanatory Material. |
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• |
Article 100. |
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• |
Article 100 Scope. |
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• |
Article 100 Definitions. Accessible (as applied to wiring methods). |
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• |
Article 100 Definitions. Appliance. |
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• |
Article 100 Definitions. Attachment Fitting, Weight Supporting (WSAF). |
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• |
Article 100 Definitions. Battery. |
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• |
Article 100 Definitions. Cable, Abandoned. |
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• |
Article 100 Definitions. Class 1 Circuits. |
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• |
Article 100 Definitions. Commissioning. |
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• |
Article 100 Definitions. Communications Circuit. |
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• |
Article 100 Definitions. Corrosive Environment. |
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• |
Article 100 Definitions. Counter (Countertop). |
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• |
Article 100 Definitions. Emergency Luminaire, Battery-Equipped (Battery-Equipped Emergency Luminaire). |
| |
• |
Article 100 Definitions. Fault-Managed Power (FMP). |
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• |
Article 100 Definitions. Ground-Fault Circuit Interrupter, Special Purpose (SPGFCI). |
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• |
Article 100 Definitions. Likely to Become Energized. |
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• |
Article 100 Definitions. Permanently Installed Swimming Pools and Storable Pools. |
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• |
Article 100 Definitions. PV String Circuit. |
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• |
Article 100 Definitions. Servicing. |
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• |
Article 100 Definitions. Short Circuit. |
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• |
Article 100 Definitions. Stranding. |
| |
• |
Article 100 Definitions. Unit Equipment. |
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• |
Article 100 Definitions. Work Surface. |
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• |
110.3(A)(8) Cybersecurity. |
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• |
110.3(B) Installation and Use. |
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• |
110.5 Aluminum Conductors. |
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• |
110.16(B) Service Equipment and Feeder Supplied Equipment. |
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• |
110.17 Servicing and Maintenance of Equipment. |
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• |
110.20 Reconditioned Equipment. |
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• |
110.21(A)(2) Marking of Reconditioned Equipment. |
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• |
110.22(A) Identification of Disconnecting Means. |
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• |
110.26 Spaces About Electrical Equipment. |
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• |
110.26(A)(4) Limited Access. |
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• |
110.26(A)(6) Grade, Floor, or Working Platform. |
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• |
110.26(C)(2) Large Equipment. |
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• |
110.26(C)(3) Personnel Doors. |
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• |
110.26(E) Dedicated Equipment Space. |
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• |
110.29 In Sight From. |
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• |
200.6 Means of Identifying Grounded Conductors. |
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• |
Article 210. |
| |
• |
210.4 Multiwire Branch Circuits. |
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• |
210.8 Ground-Fault Circuit-Interrupter Protection for Personnel. |
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• |
210.8(A) GFCI Protection for Dwelling Units. |
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• |
210.8(B) GFCI Protection for Other Than Dwelling Units. |
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• |
210.8(D) GFCI Protection for Specific Appliances. |
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• |
210.8(F) GFCI Protection for Outdoor Outlets. |
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• |
210.11(C)(4) Garage Branch Circuits. |
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• |
210.12 AFCI Protection. |
| |
• |
210.18 Branch Circuit Rating. |
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• |
210.19 Conductors - Minimum Ampacity and Size. |
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• |
210.23 Permissible Loads, Multiple-Outlet Branch Circuits. |
| |
• |
210.24 Branch Circuits - Summary. |
| |
• |
210.52(A)(2) Wall Space for Dwelling Unit Receptacle Outlets. |
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• |
210.52(C) Dwelling Unit Receptacle Outlets at Countertops and Work Surfaces. |
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• |
210.52(C)(2) & (3) Island and Peninsular Countertops and Work Surfaces. |
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• |
210.62 Show Windows. |
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• |
210.70 Lighting Outlets Required. |
| |
• |
215.15 Barriers. |
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• |
215.18 Surge Protection. |
| |
• |
220.1 Scope. |
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• |
225.41 Emergency Disconnects. |
| |
• |
230.7 Other Conductors. |
| |
• |
230.30(B) & 230.43 Wiring Methods for Service Conductors. |
| |
• |
230.67 Surge Protection. |
| |
• |
230.71(B) Two to Six Service Disconnecting Means. |
| |
• |
New Article 235. |
| |
• |
240.2 Reconditioned Equipment. |
| |
• |
240.4(B) Overcurrent Devices Rated 800 Amperes or Less. |
| |
• |
240.6(D) Remotely Accessible Adjustable-Trip Circuit Breakers. |
| |
• |
240.11 Selective Coordination. |
| |
• |
240.60(E) Fuse Reducers. |
| |
• |
240.89 Replacement Trip Units. |
| |
• |
Article 245 Overcurrent Protection for Systems Rated Over 1000 Volts ac, 1500 Volts dc. |
| |
• |
250.64(G) Enclosures with Ventilation Openings. |
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• |
250.68(C) Grounding Electrode Conductor Connections. |
| |
• |
250.102(C)(2) Size of SSBJ for Parallel Conductor Installations. |
| |
• |
250.118 Types of Equipment Grounding Conductors. |
| |
• |
250.130 Equipment Grounding Conductor Connections. |
| |
• |
250.140 Frames of Ranges and Clothes Dryers. |
| |
• |
300.4(E) Cables, Raceways, or Boxes Installed in or Under Metal-Corrugated Roof Decking. |
| |
• |
300.4(G) Fittings. |
| |
• |
Table 300.5 Minimum Cover Requirements. |
| |
• |
300.14 Length of Free Conductors at Outlets, Junctions, and Switch Points. |
| |
• |
Article 305 General Requirements for Wiring Methods and Materials for Systems Rated Over 1000 Volts ac, 1500 Volts dc, Nominal. |
| |
• |
310.15(B)(2) Rooftop. |
| |
• |
312.8(A) Splices, Taps, and Feed-Through Conductors. |
| |
• |
312.10 Screws or Other Fasteners. |
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• |
312.102 Doors or Covers. |
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• |
314.5 Screws or Other Fasteners. |
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• |
314.16(B)(6) Terminal Block Fill. |
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• |
314.23(H)(1) Pendant Boxes. |
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• |
314.24(B)(4) Conductors 12 or 10 AWG. |
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• |
314.24(C) Clearances for Side-Wiring Entrances. |
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• |
314.29 Boxes, Conduit Bodies, and Handhole Enclosures to Be Accessible. |
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• |
Article 315 Medium Voltage Conductors, Cable, Cable Joints, and Cable Terminations. |
| |
• |
320.23(A) Cables Run Across the Top of Framing Members. |
| |
• |
334.10(2) Uses Permitted. |
| |
• |
334.15(B) Protection from Physical Damage. |
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• |
334.19 NM Cable Entries. |
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• |
334.24 Bending Radius. |
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• |
344.28 Reaming and Threading. |
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• |
352.44 Expansion Fittings and Earth Movement. |
| |
• |
358.10 Uses Permitted. |
| |
• |
Article 369 Insulated Bus Pipe IBP/ Tubular Covered Conductors (TCC) Systems. |
| |
• |
Article 371 Flexible Bus Systems. |
| |
• |
Article 400 Part IV. Portable Power Feeder Cables Over 2000 Volts, Nominal. |
| |
• |
404.16 Reconditioned Equipment. |
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• |
404.30 Switch Enclosures with Doors. |
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• |
406.4(D)(8) Receptacle Replacements and Ground-Fault Protection of Equipment (GFPE). |
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• |
406.4(G) Protection of Floor Receptacles. |
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• |
406.6(D) Receptacle Faceplates with Integral Night Light and/or USB Charger. |
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• |
406.9(A) & (B) Receptacles in Damp or Wet Locations. |
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• |
406.9(C) Bathtub and Shower Space. |
| |
• |
406.12 Tamper-Resistant Receptacles. |
| |
• |
408.2 Reconditioned Equipment. |
| |
• |
408.4(A) Circuit Directory or Circuit Description. |
| |
• |
408.4(B) Source of Supply. |
| |
• |
408.9 Replacement Panelboards. |
| |
• |
408.38 Enclosure. |
| |
• |
408.43 Panelboard Orientation. |
| |
• |
410.2 Reconditioned Equipment. |
| |
• |
410.10(D) Bathtub and Shower Areas. |
| |
• |
410.71 Disconnecting Means for Fluorescent or LED Luminaires that Utilize Double-Ended Lamps. |
| |
• |
410.184 GFCI Protection and SPGFCI Protection. |
| |
• |
Article 410 Part XVII Special Provisions for Ultraviolet Germicidal Irradiation Luminaires. |
| |
• |
422.18 Ceiling-Suspended (Paddle) Fans. |
| |
• |
424.48 Installation of Cables in Walls. |
| |
• |
430.2 Reconditioned Motors. |
| |
• |
430.52 Rating or Setting for Individual Motor Circuit. |
| |
• |
440.8 Single Machine and Location. |
| |
• |
440.11 General. |
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• |
440.14 Location. |
| |
• |
445.18 & 19 Disconnecting Means and Emergency Shutdown of Prime Mover. |
| |
• |
Articles 490 & 495. |
| |
• |
500.4 Documentation. |
| |
• |
500.7 Protection Techniques. |
| |
• |
511.7 Fixed Wiring Above Class I Locations. |
| |
• |
Article 512 Cannabis Oil Equipment and Cannabis Oil Systems Using Flammable Materials. |
| |
• |
517.6 Patient Care - Related Electrical Equipment. |
| |
• |
517.10(B) Areas Not Covered by Part II of Article 517. |
| |
• |
517.13 Equipment Grounding Conductor for Receptacles and Fixed Electrical Equipment in Patient Care Spaces. |
| |
• |
517.14 Panelboard Bonding. |
| |
• |
517.22 Demand Factors. |
| |
• |
518.4(B) Communications, Signaling Systems, Data Systems, Fire Alarm Systems, and Systems Less Than 120 Volts, Nominal. |
| |
• |
547.26 Physical Protection. |
| |
• |
550.32 Service Equipment. |
| |
• |
555.4 Location of Service Equipment. |
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• |
555.14 Equipotential Planes and Bonding of Equipotential Planes. |
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• |
555.15 Replacement of Equipment. |
| |
• |
555.35 Ground-Fault Protection of Equipment (GFPE) and Ground-Fault Circuit-Interrupter. |
| |
• |
555.36 Disconnecting Means for Shore Power Connection(s). |
| |
• |
625.40 Electric Vehicle Branch Circuit. |
| |
• |
625.42 Rating. |
| |
• |
625.49 Power for Systems Operating in Island Mode. |
| |
• |
630.8 Ground-Fault Circuit-Interrupter Protection for Personnel. |
| |
• |
680.5 GFCI and SPGFCI Protection. |
| |
• |
680.12 Equipment Rooms, Vaults, and Pits. |
| |
• |
680.14 Corrosive Environments. |
| |
• |
680.21(D) Pool Pump Motor Replacement. |
| |
• |
680.54(C) Equipotential Bonding of Splash Pads. |
| |
• |
Figure 690.1. |
| |
• |
690.2 Deletion of PV Output Circuit. |
| |
• |
690.4(F) Electronic Power Converters Mounted in Not Readily Accessible Locations. |
| |
• |
690.4(G) PV Equipment Floating on Bodies of Water. |
| |
• |
690.7 Maximum Voltage. |
| |
• |
690.8(A) Calculation of Maximum Circuit Current. |
| |
• |
690.8(D) Multiple PV String Circuits. |
| |
• |
690.12 Rapid Shutdown of PV Systems on Buildings. |
| |
• |
690.12(A) Controlled Conductors and Rapid Shutdown. |
| |
• |
690.12(B) Controlled Limits. |
| |
• |
690.12(D) Buildings with Rapid Shutdown. |
| |
• |
690.15(D) Equipment Disconnecting Means. |
| |
• |
690.31(B) Identification and Grouping. |
| |
• |
690.31(C)(2) Cable Tray. |
| |
• |
690.31(G) Over 1000 Volts DC. |
| |
• |
690.43(C) Equipment Grounding Conductor Location. |
| |
• |
695.6(D) Fire Pump Wiring. |
| |
• |
700.11 Wiring, Class-2-Powered Emergency Lighting Systems. |
| |
• |
700.12(H) Battery-Equipped Emergency Luminaires. |
| |
• |
700.27 Class 2 Powered Emergency Lighting Systems. |
| |
• |
700.32 Selective Coordination. |
| |
• |
705.10 Identification of Power Sources. |
| |
• |
705.11(A) Service Connections. |
| |
• |
705.11(B), (C), and (F) Conductors and Connections. |
| |
• |
705.11(D) and (E) Service Disconnecting Means, Bonding and Grounding. |
| |
• |
705.12(A) Feeders. |
| |
• |
705.12(A) Feeder Taps. |
| |
• |
706.15 Disconnecting Means. |
| |
• |
Article 722 Cables for Power-Limited Circuits and Fault-Managed Power Circuits. |
| |
• |
Article 724 Class 1 Power-Limited Circuits and Class 1 Power-Limited Remote-Control and Signaling Circuits. |
| |
• |
725.1 Scope. |
| |
• |
725.24 Mechanical Execution of Work. |
| |
• |
Article 726 Class 4 Fault-Managed Power Systems. |
| |
• |
760.33 Supply-Side Overvoltage Protection. |
| |
• |
800.24 Mechanical Execution of Work. |
| |
• |
Chapter 9 Notes and Tables. |
237 code of Massachusetts Regulations (CMR)
|
| |
• |
237 CMR 15.00 Licensure Without Examination. |
| |
• |
237 CMR 16.00. |
| |
• |
237 CMR 17.00. |
| |
• |
237 CMR 22.00. |
| |
• |
237 CMR 23.00. |
Massachusetts General Laws
|
| |
• |
Massachusetts General Laws MGL 141 Section 1. |
| |
• |
Massachusetts General Laws MGL 141 Section 1A. |
| |
• |
Massachusetts General Laws MGL 141 Section 8. |
Massachusetts Amendments to the NEC
|
| |
• |
527 CMR 12 MA Electrical Code Rule 1. |
| |
• |
527 CMR 12 MA Electrical Code Rule 2. |
| |
• |
527 CMR 12 MA Electrical Code Rule 3. |
| |
• |
527 CMR 12 MA Electrical Code Rule 4. |
| |
• |
527 CMR 12 MA Electrical Code Rule 5. |
| |
• |
527 CMR 12 MA Electrical Code Rule 6. |
| |
• |
527 CMR 12 MA Electrical Code Rule 7. |
| |
• |
527 CMR 12 MA Electrical Code Rule 8. |
| |
• |
527 CMR 12 MA Electrical Code Rule 9. |
| |
• |
527 CMR 12 MA Electrical Code Rule 10. |
| |
• |
527 CMR 12 MA Electrical Code Rule 11. |
| |
• |
90.4 Enforcement. |
| |
• |
90.6 Interpretations and Appeals. |
| |
• |
90.10 References to Commonwealth of Massachusetts Codes, Regulations, and Laws. |
| |
• |
Article 100, Coordination, Selective (Selective Coordination). |
| |
• |
Article 110 Requirements for Electrical Installations. |
| |
• |
210.8 Ground-Fault Circuit-Interrupter Protection for Personnel. |
| |
• |
215.15 Barriers. |
| |
• |
225.30(F) Documented Switching Procedures. |
| |
• |
250.130(C) Nongrounding Receptacle Replacement or Branch Circuit Extensions. |
| |
• |
Article 300. |
| |
• |
Article 310. |
| |
• |
320.80 Ampacity. |
| |
• |
Article 334 Nonmetallic Sheathed Cable. |
| |
• |
Article 338. |
| |
• |
344.6 Rigid Metal Conduit. Listing Requirements. |
| |
• |
352.12 Rigid Polyvinyl Chloride Conduit: Type PVC. Uses Not Permitted. |
| |
• |
Article 368. |
| |
• |
372.23 Cellular Concrete Floor Raceways. |
| |
• |
374.23 Cellular metal Floor Raceways. |
| |
• |
390 Underfloor Raceways. |
| |
• |
NEC Article 400. |
| |
• |
Article 406. |
| |
• |
Article 410. |
| |
• |
Article 440. |
| |
• |
NEC Chapter 5. |
| |
• |
NEC Chapter 6. |
| |
• |
NEC Chapter 7. |
Massachusetts Hot Works Training Module
|
| |
• |
Massachusetts Hot Work Training. |
