Share:

NEC & Code Compliance

Power Calc PaK is smart software using a proprietary database. It automatically calculates all electrical engineering requirements for the power distribution system in a building, and does so applying the listed 2008 NEC requirements (IEEE Standard 141, IEEE Standard 399 – 1997, other building standards, and NEMA requirements).

Power Calc PaK selects appropriate values from NEC tables, specifications, and schedules to automatically calculate over 300 outputs1. Although Power Calc Pak automatically defaults to the appropriate values of the NEC and other standards, the user can also elect to override these inputs/outputs manually to fit the job requirements and accommodate design changes.

Power Calc PaK applies many requirements, including:

IEEE 141 Recommended Practice for Electric Power Distribution for Industrial Plants
   
NEC Article 110 Requirements for Electrical Installations
NEC 110.4 Voltages
NEC 110.6 Conductor Sizes
NEC 110.9 Interrupting Rating
   
NEC Articles 210  Branch Circuits
NEC 210.3 Rating
NEC 210.4 Multiwire Branch Circuits
NEC 210.8 Ground-Fault Circuit–Interrupter Protection for Personnel
NEC 210.10 Ungrounded Conductors Tapped from Grounded Systems
NEC 210.12 Arc-Fault Current-Interrupter Protection
NEC 210.19 Conductors - Minimum Ampacity and Size
NEC 210.20 (A)  
   
NEC Article 215 Feeders
NEC 215.2 Minimum Rating and Size
NEC 215.2 A (3) Minimum Rating and Size: Individual Dwelling Unit or Mobile Home Conductors
NEC 215.3 Overcurrent Protection
NEC 215.4 Feeders with Common Neutral Conductor
NEC 215.5 Diagrams of Feeders
NEC 215.9 Ground-Fault Circuit-Interrupter Protection for Personnel
NEC 215.10 Ground-Fault Protection of Equipment
   
NEC Article 220 Branch-Circuit, Feeder, and Service Calculations
NEC 220.5 Calculations
NEC 220.12 Lighting Load for Specified Occupancies
NEC 220.14 Other Loads-All Occupancies
NEC 220.16 Loads for Additions to Existing Installations
NEC 220.18 Maximum Loads
NEC 220.40 Feeder and Service Load Calculations: General
NEC 220.42 General Lighting
NEC 220.43  Show-Window and Track Lighting
NEC 220.44 Receptacle Loads-Other Than Dwelling Units
NEC 220.50 Motors
NEC 220.51 Fixed Electric Space Heating
NEC 220.52 Small-Appliance and Laundry-Loads Dwelling Unit
NEC 220.53 Appliance Load-Dwelling Unit(s)
NEC 220.54 Electric Clothes Dryers-Dwelling Unit(s)
NEC 220.55 Electric Ranges and Other Cooking Appliances-Dwelling Unit(s)
NEC 220.56 Kitchen Equipment-Other Than Dwelling Unit(s)
NEC 220.60  Noncoincident Loads
NEC 220.61 Feeder or Service Neutral Load
NEC Table 220.84 Optional Calculations – Demand Factors for Three or More Multifamily Dwelling Units
   
NEC Article 225 Outside Branch Circuits and Feeders
NEC 225.36 Suitable for Service Equipment
   
NEC Article 230 Services
NEC 230.23 Size and Rating
NEC 230.31 Size and Rating
NEC 230.42 Minimum Size and Rating
NEC 230.79 Rating of Service Disconnecting Means
NEC 230.90 Service Equipment – Overcurrent Protection: Where Required
NEC 230.95 Ground-Fault Protection of Equipment  
   
NEC Article 240 Overcurrent Protection
NEC 240.4 Protection of Conductors
NEC 240.6 Standard Ampere Ratings
NEC 240.13 Ground-Fault Protection of Equipment
NEC 240.15 Ungrounded Conductors
NEC 240.21 Location in Circuit
NEC 240.23 Change in Size of Grounded Conductor
NEC 240.30 Enclosures: General
NEC 240.60 Cartridge Fuses and Fuseholders: General
NEC 240.92 Location in Circuit
   
NEC Article 250 Grounding and Bonding
NEC 250.30 Grounding Separately Derived Alternating-Current Systems
NEC 250.30 (B)(1) Grounding Electrode Conductor
NEC 250.52 Grounding Electrodes
NEC 250.66 Size of Alternating-Current Grounding Electrode Conductor
NEC Table 250.66 Grounding Electrode Conductor for Alternating-Current Systems
NEC 250.122 Size of Equipment Grounding Conductors
NEC 250.122(B) Increased in Size 
NEC 250.122(C) Multiple Circuits
NEC 250.122 (D) Motor Circuits
NEC 250.122 (F) Conductors in Parallel
NEC 250.122 (G)  Feeder Taps
NEC Table 250.122 Minimum Size Equipment Grounding Conductors for Grounding Conductors for Grounding Raceway and Equipment
   
NEC Article 285 Surge Protective Devices (SPDs), 1kV or Less
   
NEC Article 300 Wiring Methods
NEC 300.1(C) Metric Designators and Trade Sizes
   
NEC Article 310 Conductors for General Wiring
NEC 310.4 Conductors in Parallel
NEC 310.10 Temperature Limitation of Conductors
NEC 310.15 Ampacities for Conductors Rated 0-2000 Volts
NEC 310.15(B)(2) Ampacities for Conductors rated 0-200 Volts: Panelboard Neutral Conductor Size: Adjustment Factors
NEC Table 310.15(B)(2)(a) Adjustment Factors for More than Three Current-Carrying Conductors in a Raceway
NEC Table 310.15(B)(6) Conductor Types and Sizes for 120/240-Volt, 3-Wire, Single-Phase Dwelling Services and Feeders
NEC Table 310.16 Allowable Ampacities of Insulated Conductors Rated 0 Through 2000 Volts, Correction Factors
NEC 310.60 Conductors Rated 2001 - 35,000 Volts
   
NEC Article 312 Cabinets, Cutout Boxes, and Meter Socket Enclosures
NEC 312.2 Damp or Wet Locations
   
NEC Article 344 Rigid Metal Conduit: Type RMC
NEC 344.22 Number of Conductors
   
NEC Article 408 Switchboards and Panelboards
NEC 408.3(C) Used as Service Equipment
NEC 408.3(E) Phase Arrangement
NEC 408.3(F) High Leg Identification
NEC 408.4 Circuit Directory or Circuit Identification
NEC 408.14 Maximum Number of Overcurrent Devices (Prior to NEC 2008)
NEC 408.30  
NEC 408.36 Overcurrent Protection
NEC 408.37 Panelboards in Damp or Wet Location
NEC 408.40 Grounding of Panelboards
NEC 408.54 Maximum Number of Overcurrent Devices
   
NEC Article 422 Appliances
NEC 422.1 Scope
NEC 422.11 Overcurrent Protection
NEC 422.52 Electric Drinking Fountains
   
NEC Article 430 Motors, Motors Circuits, and Controllers
NEC 430.21 Motors Circuit Conductors: General
NEC 430.22 Single Motor
NEC 430.24 Several Motors or a Motor(s) and Other Load(s)
NEC 430.25 Multimotor and Combination-Load Equipment
NEC 430.31 Motors and Branch-Circuit Overload Protection: General
NEC 430.42 Motors on General-Purpose Branch Circuits
NEC 430.52 Rating or Setting for Individual Motor Circuit
NEC Table 430.52 Maximum Rating or Setting of Motor, Branch-Circuit Short-Circuit and Ground-Fault Protective Devices
NEC 430.53 Several Motors or Loads on One Branch Circuit
NEC 430.54 Multimotor and Combination – Load Equipment
NEC 430.62 Rating or Setting-Motor Load
NEC 430.92 Motor Control Centers: General
NEC Table 430.248 Full-Load Currents in Amperes, Single-Phase Alternating-Current Motors
NEC Table 430.249 Full-Load Current, Two-Phase Alternating-Current Motors (4-Wire)
NEC Table 430.250 Full-Load Current, Three-Phase Alternating-Current Motors
   
NEC Article 440 Air-Conditioning and Refrigerating Equipment
NEC 440.6 Ampacity and Rating
NEC 440.11 Disconnecting Means: General
NEC 440.12 Rating and Interrupting Capacity
NEC 440.22 Branch-Circuit Short-Circuit and Ground-Fault Protection: Application and Selection
   
NEC Article 695 Fire Pumps
   
NEC Article 700 Emergency Systems

 

1 Note: Power Calc Pak selects the most conservative of these values.