Washington Cities Electrical Code

Total Page:16

File Type:pdf, Size:1020Kb

Washington Cities Electrical Code 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
Recommended publications
  • New Microsoft Excel Worksheet (2).Xlsx
    Knowledge Assessment ( Written Test) QP Name - Assistant electrician QP Code:CON/Q0602 Total marks: 210 marks Duration: 90 minutes Each NOS carries 30 marks Infrastructure: Classroom, Benches, Pens, pencils Marks CON/N0602: Select and use hand tools, power tools, and electrical devices relevant to construction electrical works 1 Which device is used to measure current in a circuit? 4 a. Voltmeter b. Ammeter c. Tester d. Megger 4 2 Identify the item form the image below? a. Wattmeter b. Digital Multi meter c. Energy meter d. Analog multi meter 3 Which device is used to avoid overload current in a circuit? 4 a. Residual current circuit breaker b. Miniature circuit breaker c. Earth Leakage circuit breaker d. Molded Case circuit breaker 4 Identify the tool form the image below? 4 a. Channel loch plier b. Combination plier c. Nose plier d. Snippers 5 Which of the following is an ideal instrument used to measure the thickness of conduit? 4 a. Vernier Caliper b. Multi meter c. Measuring tape d. Total station 6 Identify the item form the image below? 5 a. Semi enclosed or re-wire able fuse b. Cartridge type fuse c. D type fuse d. Link type fuse 7 Which of the following tools is used to strip the insulation of cable? 5 a. Plier b. Scissor c. Splicer d. Tester CON/N0603: Install temporary lighting arrangement at construction sites Marks 8 What is the maximum number of 1sq.mm wires that can be drawn through a 25mm diameter conduit 4 a. 5 b. 2 c. 4 d.
    [Show full text]
  • 2020 National Electrical Code® Style Manual
    2020 NATIONAL ELECTRICAL CODE® STYLE MANUAL 1 FOREWORD August 2020 The National Electrical Code® is used nationally and internationally as the basis for safeguarding persons, buildings, and their contents from hazards arising from the use of electricity. It is vitally important that the text be as explicit as possible, and that maximum consistency be achieved in the language used in the text. The Code contains those provisions considered necessary for safety and thus is widely used as a basis for legal enforcement in the installation of electrical conductors and equipment in buildings and certain other premises (as detailed in the Code itself); this places a major responsibility on those involved in the preparation of document text to use forms of expression that promote uniform interpretation. The National Electrical Code Correlating Committee has recognized these responsibilities and has issued this manual. Preparation and Date of Adoption. This manual was originally prepared by the Editorial Task Group of the National Electrical Code Committee and adopted by the National Electrical Code Correlating Committee on May 13, 1969. It was amended September 22, 1975, October 11, 1984, October 12, 1989, and May 9, 1994. In January 1999, the Correlating Committee Task Group on the Usability of the NEC rewrote the manual. It was adopted by the National Electrical Code Correlating Committee on March 19, 1999 and by the Standards Council on April 15, 1999. It was amended March 1, 2001, January 15, 2003, and August 9, 2011, August 2015, and December 2020. 2 TABLE OF CONTENTS Foreword ........................................................................................................ 2 Chapter 1 General 4 1.1 Purpose ............................................................................................
    [Show full text]
  • Electrical Inspection Checklist for One-Family Homes Based on the 2020 National Electrical Code® (NEC®)
    Electrical Inspection Checklist for One-Family Homes Based on the 2020 National Electrical Code® (NEC®) NOTE: The Board of Electricity adopted the 2020 National Electrical Code (NEC) with an effective date of Nov. 17, 2020. Accordingly, the Department of Labor and Industry began enforcing the 2020 NEC on Nov.17, 2020. Electrical work authorized by permits issued on or after this date must comply with the 2020 NEC. Electrical license examinations are based on the requirements of the 2020 NEC beginning Jan. 1, 2021. However, due to concerns regarding the availability of 2-pole GFCI circuit breakers, the department delayed enforcement of the requirements for 250-volt GFCI receptacles and outlet requirements found in NEC 210.8(A) and 210.8(F). On April 5, 2021, DLI will begin enforcing the 250-volt GFCI receptacle and outlet requirements found in NEC 210.8(A) and 210.8(F). Industry circuit breaker manufacturers have confirmed that supply-chain challenges will be resolved in March 2021. Electrical work authorized by permits issued on or after April 5, 2021, must comply with the 2020 NEC. 001 An owner (i.e. homeowner) who files a Request for Electrical Inspection form (i.e. permit) with the Department of Labor and Industry or other electrical inspection authority is signing an affidavit and declaring they own and occupy the residence and they will personally perform all of the electrical work, including the planning and laying out of the electrical work. 002 The term “owner” is defined in law as a natural person who physically performs electrical work on premises the person owns and actually occupies as a residence or owns and will occupy as a residence upon completion of construction.
    [Show full text]
  • Guideline on Through Penetration Firestopping
    GUIDELINE ON THROUGH-PENETRATION FIRESTOPPING SECOND EDITION – AUGUST 2007 SHEET METAL AND AIR CONDITIONING CONTRACTORS’ NATIONAL ASSOCIATION, INC. 4201 Lafayette Center Drive Chantilly, VA 20151-1209 www.smacna.org GUIDELINE ON THROUGH-PENETRATION FIRESTOPPING Copyright © SMACNA 2007 All Rights Reserved by SHEET METAL AND AIR CONDITIONING CONTRACTORS’ NATIONAL ASSOCIATION, INC. 4201 Lafayette Center Drive Chantilly, VA 20151-1209 Printed in the U.S.A. FIRST EDITION – NOVEMBER 1996 SECOND EDITION – AUGUST 2007 Except as allowed in the Notice to Users and in certain licensing contracts, no part of this book may be reproduced, stored in a retrievable system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of the publisher. FOREWORD This technical guide was prepared in response to increasing concerns over the requirements for through-penetration firestopping as mandated by codes, specified by system designers, and required by code officials and/or other authorities having jurisdiction. The language in the model codes, the definitions used, and the expectations of local code authorities varies widely among the model codes and has caused confusion in the building construction industry. Contractors are often forced to bear the brunt of inadequate or confusing specifications, misunderstandings of code requirements, and lack of adequate plan review prior to construction. This guide contains descriptions, illustrations, definitions, recommendations on industry practices, designations of responsibility, references to other documents and guidance on plan and specification requirements. It is intended to be a generic educational tool for use by all parties to the construction process. Firestopping Guideline • Second Edition iii FIRE AND SMOKE CONTROL COMMITTEE Phillip E.
    [Show full text]
  • Commercial Conduit Rules and Regulations
    Exhibit C – Commercial Conduit Rules and Regulations Electric Engineering Division COMMERCIAL CONDUIT RULES AND REGULATIONS S:\COO_ACM_US_Electric_Telecommunications\COO_ET_Engineering\Conduit Policies C-1 Exhibit C – Commercial Conduit Rules and Regulations 1805 NE 30th Ave., Bldg. 400 Ocala, FL 34470-4875 Phone: (352) 351-6620 Fax: (352 ) 401-6961 Electric Engineering Division Dear Developer: Over the next few months, the City of Ocala Utility Services (OUS) will be working closely with you and your contractors to install the electrical conduit system for your project. We in the Electric Engineering Division are looking forward to working with your contractors and want the installation to proceed as smooth as possible. Attached, please find the OUS Commercial Conduit Rules and Regulations for use by your electrical conduit contractor. If the contractor has any questions that are not addressed in this guide, please contact the OUS representative responsible for the project. Respectfully Ocala Utility Services Engineering Division C-2 Exhibit C – Commercial Conduit Rules and Regulations TABLE OF CONTENTS i. LETTER TO DEVELOPER ........................................................................................... 2 I. RULES AND REGULATIONS A. TABLE OF CONTENTS ....................................................................................... 3 B. TERMS AND DEFINITIONS ............................................................................... 4 C. DEVELOPER’S RESPONSIBILITIES ...............................................................
    [Show full text]
  • Section 16050 - Basic Electrical Materials and Methods
    Revised 10/03/19 SPECIFICATIONS - DETAILED PROVISIONS Section 16050 - Basic Electrical Materials and Methods C O N T E N T S PART 1 - GENERAL ............................................................................................................................. 1 1.01 SCOPE ........................................................................................................................................ 1 1.02 RELATED SECTIONS ................................................................................................................... 1 1.03 STANDARDS AND CODES ......................................................................................................... 1 1.04 SUBMITTALS ............................................................................................................................. 3 1.05 COORDINATION OF WORK AND TRADES ................................................................................ 4 1.06 DELIVERY, STORAGE, AND HANDLING……………………………………………………………………………….. 5 PART 2 - PRODUCTS .......................................................................................................................... 5 2.01 GENERAL ................................................................................................................................... 5 2.02 CONDUCTORS AND CABLES ..................................................................................................... 6 2.03 CONDUCTOR AND CABLE CONNECTORS ................................................................................
    [Show full text]
  • Specification 270528 Interior Communications Pathways
    GUIDELINES HAS/PDC/Design Division Project Title Houston, Texas Proj./CIP No. (These Guidelines are basic minimum criteria to be met in preparing the final specifications for this section, which is the responsibility of the Designer/Contractor/Installation Team.) SECTION 270528 INTERIOR COMMUNICATION PATHWAYS (REV.01-23-2020-SJS) PART 1 GENERAL 1.01 PROJECT SCOPE SUMMARY Designer shall provide a detailed narrative/scope of the tasks to be performed under this specification sections. 1.02 SECTIONS INCLUDES A. This section includes specifications for the installation of interior communications pathways. B. Related Documents: Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division - 1 Specification sections, apply to the work of this section. C. Interior Communication Pathways are defined to include, but are not limited to innerduct, flexible multi-cell innerduct, conduit, pull boxes, cable/j-hooks, cable trays, supports, accessories, associated hardware and fire stopping materials. 1.03 REFERENCES A. Related Sections: Use these Specifications for all related work not specifically covered in this specification. 1. Section 270526: Telecommunication Grounding and Bonding 2. Section 270543: Exterior Communication Pathways 3. Section 270553: Identification and Labeling of Communication Infrastructure 4. Section 271100: Communication Cabinets and Equipment Rooms 5. Section 271300: Backbone and Riser Media Infrastructure 6. Section 271500: Horizontal Media Infrastructure 7. Section 272100: Data Communication Network Equipment 8. Section 272200: PC, Laptop, Servers and Equipment 9. Section 275113: Audio Communication System 10. Section 281300: Access Control System 11. Section 232313: Video Surveillance Control and Management System B. American National Standards Institute / Telecommunications Industry Association / Electronic Industries Alliance (ANSI/TIA/EIA): Most current standard revision 1.
    [Show full text]
  • Installation Guide
    Installation Preparation of the hood for installation: To facilitate the installation it is recommended to remove the panel before installing the hood. Attention! Keep both hands on the panel when disassembling or reassembling it into place to prevent it from falling and causing damage to persons or property. Disassembly: - Pull the panel (FRONT SIDE) firmly down, - Push the small lever, located in the right side of the panel, to the left, - Unhook it from the rear joints. 8 Installation - Ducting version 1. Pre-installation calculations 2. Preparation of mounting surface K = Kitchen Height Installing supports above ceiling drywall. C = Counter Height (36" standard) P = Prefered Height of Hood Bottom above counter (Recommended 24”-30”) H = Hood height your installation H = K – C – P a) Select a hood preference height P that is comfortable for the user. (from 24” to 30“). b) Calculate Hood height your installation H = K-C-P. c) Confirm that H is within the range of min to max H found for your model (See “Dimensions and clearances” paragraph). If not adjust your installation. Note: Take into consideration the hood depth; the hood could be much deeper than the cooktop. a. Mark center lines of cooktop or range on ceiling above. Use centerlines marked on ceiling to position the mounting template. Note location of hood front (that indicated with a printed arrow), side, and mounting holes indicated on template. Note: Remember that printed arrow on template corresponds to front of the hood and consequently to side where control panels will be located at the end of installation) b.
    [Show full text]
  • Electrical Conduits
    Electric Level 5 Electrical Conduits What’s it all About? Electrical conduits refer to an electrical system used to protect and provide route of electrical wiring. Electrical conduits are made of metal, plastic, or fiber and could be rigid or flexible. Conduits must be installed by following standard regulations, as those provided by the manufacturer and the National Electrical Code (NEC). Keys to Remember • The 2017 NEC covers 12 types of conduits. Articles 342 through 362 specify use, installation, and construction specifications. • Fill rates, or how many wires can be put in the conduit, is covered in the 2017 NEC Annex C. • Sizing - Conduit tubing uses Outside Dimensions (OD); conduit piping uses Nominal Pipe Size (NPS). Sizes range from 3/8” to 6”. • With any wiring project, safety for people and property is most important. Any metallic conduit should be grounded/bonded to the electrical grounding system. For the Project • Material List with Costs • References • Diagrams • Planning and Research • Dimensions • Title and Labels • Pictures (if exhibiting a report or poster) • Record Sheet Nine Common Types of Electrical Conduit 1. Galvanized Rigid Conduit A conduit made from galvanized steel tubing is commonly referred to as a rigid conduit. The thickness of a galvanized rigid (GR) conduit protects the electrical wiring from being hit and allows it to be threaded. 2. Electrical Metallic Tubing An electrical metallic tubing (EMT) conduit is made of steel; in some cases aluminum is also used. EMT is cheaper than a galvanized rigid conduit and lighter than a GR conduit. EMT is also a very popular material because it can be bent to specific radius and directions.
    [Show full text]
  • Electrical Code Amendment
    CITY OF GRAPEVINE Chapter 7, Buildings and Construction, Article III, Electrical Code ARTICLE III. ELECTRICAL CODE DIVISION 1. GENERALLY Sec. 7-30. Definitions. For the purposes of this article, hereinafter referred to as the electrical code or this code, the following terms, phrases, words, and their derivatives shall be construed as set out in this section: Approved: Acceptable to the building inspection division and/or the electrical board of appeals of the city. Authorized person: Any person, as defined in section 1-5, registered or licensed under the provisions of this code to do work as permitted under the specific provisions of this code. Buildings, building use: Words relating to buildings and building use, when not otherwise separately defined, shall have meanings which conform to the meanings set out in the zoning ordinance of the city; otherwise, they shall have their usual dictionary meanings. City: The territory within the corporate limits of the city, or the legally constituted governing body thereof, its agents and its officers. Conductor: A wire or cable or other form of metal suitable for carrying electric current or potential. Electrical apprentice: Any person who has been issued a license from the State of Texas as an electrical apprentice as provided for by state law. Electrical construction: All work and materials used in installing, maintaining, or extending a system of electrical wiring and all appurtenances, apparatus or equipment used in connection therewith, inside or outside of or attached to any building, structure, lot or premises. Electrical contractor: Any person who has been issued a license from the State of Texas as an electrical contractor as provided for by state law.
    [Show full text]
  • Answer the Purpose: 4
    Page 26 1. CONDUCTORS Conductors are defined as materials that easily allow the flow of _________. Metals are _______ conductors while insulators are ______ . The 2 common metals used for conductors in the electrical trade are: ___________ and ______________. Aluminium has become more prevalent for larger C.S.A. conductors as it is cheaper and lighter but more brittle than copper. Current/ Copper/ Aluminium Thermoplastic-sheathed cable (TPS) consists of an outer toughened sheath of polyvinyl chloride (PVC) (the thermoplastic element) covering one or more individual cables which are PVC insulated annealed copper conductors. It is a commonly used type of wiring for residential and light commercial construction in many countries. The flat version of the cable with two insulated conductors and an uninsulated earth conductor all within the outer sheath is referred to as twin and earth. In mainland Europe, a round equivalent is more common. Flat cables (or festoon cables) are made in PVC and Neoprene and are used as trailing cables for cranes, open filed conveyors and shelve service devices. Flat cables offer the advantages of extremely small bending radius’s, high flexibility and minimum wastage of space. Thermoplastic-sheathed cable (TPS) consists of an outer toughened sheath of polyvinyl chloride (PVC) (the thermoplastic element) covering one or more individual cables which are PVC insulated annealed copper conductors. It is a commonly used type of wiring for residential and light commercial construction in many countries. The flat version of the cable with two insulated conductors and an uninsulated earth conductor all within the outer sheath is referred to as twin and earth.
    [Show full text]
  • Don't Be Confused by Your Fuse
    Head Office Neptronic® 400 Lebeau Blvd. HVAC Controls Electric Actuators Actuated Valves Montreal, Quebec, Canada H4N 1R6 Tel.: (514) 333-1433 Humidifiers Electric Heaters Fax: (514) 333-3163 Toll Free: 1-800-361-2308 Don’t be confused by your fuse: MCA and MOP for your humidifier explained Before we start, we need first to understand what MCA and MOP are. The minimum circuit ampacity (MCA) and maximum overcurrent protection (MOP) ratings provide a guide for safely connecting field-wired equipment to the building mains. Understanding these ratings, and their relationship to each other, is critical to properly selecting wire and circuit breaker sizes. What is MCA? Minimum Circuit Ampacity (MCA) is a calculated value that specifies the minimum main power wire size. It is also used to determine the minimum wire size required for a field wired product. This specification is necessary in order to guarantee that the wiring will not overheat under expected operating conditions. The wire size takes into account the normal current draw, aging of components and anticipated faults. More specifically, the MCA is the highest steady-state electrical current that the unit should see when operating correctly. What is MOP? Maximum Over-Current Protection (MOP) is a calculated value that determines the maximum size of the over-current protection device (fuse or breaker). There are different MOP equations depending on your application. The maximum overcurrent protection (MOP) is the maximum circuit breaker size required to properly protect the equipment under anticipated fault conditions. The MOP takes into account startup surges and component aging. Supply wiring must be rated to carry the amps shown as MCA.
    [Show full text]