EPC 1072 - The National Electrical Code (NEC 2017)

• Be aware that electrical requirements in addition to the NEC may exist, and if so, that compliance is required.
• Understand the meaning of the term accessible (1) when applied to wiring methods and (2) when applied to equipment.
• Be able to identify accessible equipment that is not readily accessible.
• Be able to accurately evaluate a location as accessible, readily accessible,or not readily accessible.
• Be able to identify equipment classified as appliances.
• Be familiar with the four categories of branch circuits and be able to list their differences.
• Be able to distinguish the difference between the terms enclosed and guarded.
• Be able to determine whether a load is continuous or non-continuous.
• Know the difference between branch - circuit conductors and feeder conductors.
• Know the support requirements for MC,AC and nonmetallic -sheathed cable.
• Be aware that a minimum bending radius must be maintained with cables.
• Understand that cables must be protected from physical damage.
• Be familiar with both general and specific installation provisions for MC, AC, and nonmetalic sheathed cable.
• Be familiar with box requirements when using nonmetallic - sheathed cable.
• Know the minimum conductor length to be left inside boxes.
• Know the maximum number of bends for raceways installed between pull points.
• Have a good understanding of rigid and intermediate metal-conduit provisions.
• Be able to determine the type of raceway best suited for each installation.
• Be familiar with intermediate metal conduit (IMC), rigid metal conduit (RMC), and electrical metallic tubing (EMT) support requirements.
• Be able to calculate the minimum number of 15- and 20- ampere branch circuits in a one family dwelling.
• Know the requirements for single receptacles on individual branch circuits.
• Understand the branch - circuit ratings allowed for general - purpose receptacles.
• Know the receptacle ratings allowed on various size branch circuits.
• Understand the requirements for receptacle boxes.
• Know the minimum number of circuits required for kitchens, pantries, dining rooms, breakfast rooms, and similar areas.
• Have an extensive understanding of the grounding system as a whole.
• Be able to calculate the general lighting load in a one - family dwelling.
• Know the minimum volt - amp (VA) requirements for small - appliance and laundry branch circuits.
• Know how to apply demand factors to the general lighting load.
• Be able to apply demand factors to fastened in place appliances.
• Be able to calculate feeder - demand loads for household clothes dryers.
• Know how to calculate feeder - demand loads for household cooking equipment.
• Be able to calculate heating and air - conditioning feeder - demand loads.
• Be able to calculate a one family dwelling service or feeder using the standard method.
• Be able to calculate a one - family dwelling service or feeder using the optional method.
• Know how to size service and feeder conductors.
• Be able to calculate and choose the appropriate size neutral conductor.
• Understand how the grounding electrode conductor is selected.
• Be familiar with service conductor vertical clearance requirements.
• Know that the number of dwelling units is essential in performing a multifamily calculation.
• Be able to calculate the general lighting load in a multifamily dwelling.
• Have a good understanding of the elements required to perform a non-dwelling load calculation.
• Know that working space clearances vary depending on the conditions and voltages.
• Understand what constitutes Class I, II, and III locations, as well as the parameters for Divisions 1 and 2 within each class.
• Have an adequate understanding of health care facility terminology.
• Be familiar with service entrance provisions with or without a single main disconnecting means.
• Know the location of provisions relating to recreational vehicles and recreational vehicle parks.
• Have a good understanding of floating building requirements.
• Be familiar with the provisions for marinas and boatyards.
• Be familiar with definitions pertinent to swimming pools, fountains, and similar installations.
• Understand what constitutes an equipotential bonding grid (for permanently installed pools) and what items must be bonded to the grid.
• Have a solid grasp of equipment, panelboard, receptacle, and lighting (including underwater lighting) provisions pertaining to permanently installed swimming pools.
• Be able to accurately define the storable pool and know the applicable requirements.
• Be familiar with spa and hot tub provisions.
• Know where to find requirements for therapeutic pools and tubs.
• Understand the fundamental hydro-massage bathtub provisions.