2017 Washington Cities Electrical Code September 15, 2017 2 Table of Contents PREFACE ................................................................................................................................................... 9 Introduction ........................................................................................................................................... 9 Development ......................................................................................................................................... 9 MyBuildingPermit.com ....................................................................................................................... 9 Washington Association of Building Officials ........................................................................... 10 Format ................................................................................................................................................... 10 Part 1 – Adoption ........................................................................................................................................ 11 80.1 Short Title ................................................................................................................................. 11 80.3 National Electrical Code and Standards Adopted ....................................................... 11 80.4 Conflicts ..................................................................................................................................... 11 Part 2 - Administration ................................................................................................................................ 13 85.1 Purpose ...................................................................................................................................... 13 85.3 Scope .......................................................................................................................................... 13 85.5 Applicability .............................................................................................................................. 14 85.9 Moved buildings or structures ........................................................................................... 16 85.11 Organization and Enforcement ....................................................................................... 19 85.13 Permits and Fees .................................................................................................................. 21 85.15 Construction Documents................................................................................................... 27 85.17 Approval .................................................................................................................................. 32 85.19 Inspections and Testing .................................................................................................... 34 85.21 Service utilities ..................................................................................................................... 39 85.23 Unsafe systems and equipment ..................................................................................... 39 85.25 Violations ................................................................................................................................ 40 85.27 Means of Appeal. .................................................................................................................. 42 85.29 Additional Electrical Provisions ...................................................................................... 43 Part 3 – NEC Amendments .......................................................................................................................... 47 90.7 Examination of Equipment for Safety ....................................................................... 47 100 Definitions .................................................................................................................................. 48 110.2 Approval .................................................................................................................................. 57 110.3 Examination, Identification, Installation, Use and Listing (Product Certification) of Equipment ....................................................................................... 57 110.11 Deteriorating Agents ....................................................................................................... 58 3 110.12 Mechanical Execution of Work ..................................................................................... 59 110.16 Arc-Flash Hazard Warning ............................................................................................. 59 110.22 Identification of Disconnecting Means ..................................................................... 60 110.30 General .................................................................................................................................. 60 210.8 Ground Fault Circuit-Interrupter Protection for Personnel ................................. 61 210.11 Branch Circuits Required ................................................................................................ 61 210.52(C)(3) Peninsular Countertop Spaces ......................................................................... 61 215.10 Ground-Fault Protection of Equipment ..................................................................... 62 220.12 Lighting Loads for Specified occupancies ................................................................ 62 220.87 Optional Calculations for Determining Existing Loads ........................................ 62 225.30 Number of Supplies .......................................................................................................... 63 225.32 Location ................................................................................................................................ 63 230.28 Service Mast as Support ................................................................................................. 64 230.43 Wiring Methods for 1000 Volts, Nominal, or Less ................................................. 68 230.70 Service Equipment - Disconnecting Means - General .......................................... 68 230.90 Service Equipment - Overcurrent Protection .......................................................... 69 230.95 Ground-Fault Protection of Equipment ..................................................................... 69 230.202 VIII. Services Exceeding 1000 Volts Service Entrance Conductors ............ 70 240.24 Overcurrent Protection - Location in or on Premises .......................................... 70 250.28 Main Bonding Jumper and System Bonding Jumper............................................ 71 250.50 Grounding Electrode System ........................................................................................ 71 250.53 Grounding Electrode System Installation ................................................................ 71 250.64(B) Grounding Electrode Conductor Installation .................................................... 72 250.104(A) Bonding of Piping Systems and Exposed Structural Steel ........................ 72 250.104(B) Other Metal Piping ................................................................................................... 73 250.184(A) Solidly Grounded Neutral Systems .................................................................... 73 300.4 Protection Against Physical Damage ............................................................................ 74 Table 300.5 Underground Installations ................................................................................ 75 300.11 Securing and Supporting ................................................................................................ 75 310.110 Conductor Identification .............................................................................................. 76 314.23 Supports ............................................................................................................................... 77 314.29 Boxes, Conduit Bodies, and Handhole Enclosures to Be Accessible ............... 78 4 334.15 Exposed Work ..................................................................................................................... 78 358.10(D) Electrical Metallic Tubing: Type EMT - Wet Locations .................................. 78 358.12 Electrical Metallic Tubing: Type EMT - Uses Not Permitted .............................. 78 394.12 Concealed Knob-and-Tube Wiring - Uses Not Permitted ................................... 78 406.12 Tamper Resistant Receptacles ..................................................................................... 79 410.10 Bathtub and Shower Areas ............................................................................................ 79 410.62 Cord-Connected Lampholders and Luminaires ...................................................... 79 422.10 Appliances - Branch-Circuit Rating ............................................................................ 80 430.7 Marking on motors and multimotor equipment ....................................................... 80 440.14 Air Conditioning and Refrigerating Equipment ...................................................... 80 450.27 Oil-Insulated Transformers Installed Outdoors .................................................... 80 450.42 Transformer