(A) Code Adopted: There is hereby adopted by reference as if fully set out herein that certain code known as the National Electrical Code (NEC), 2017 edition (NFPA 70-2017) as sponsored and published by the National Fire Protection Association and approved by the American National Standards Institute, together with the additions, insertions, deletions and changes hereinafter set forth, one copy of which has been on file for a period of more than thirty (30) days prior to the adoption of this section and now is on file in the Office of the Village Clerk. Any reference in the NEC 2017 edition (NFPA 70-2017) to the "authority having jurisdiction" shall mean the building official or his/her designee.
(B) Amendments: The following additions, insertions, deletions and changes are hereby made to the National Electrical Code:
1. Article 210.6(C) 277 Volts to Ground. Delete in its entirety and in lieu thereof substitute the following new Article 210.6(C):
Article 210.6(C) 277 Volts to Ground. Circuits exceeding one hundred and twenty volts (120V), nominal, between conductors and not exceeding two hundred and seventy-seven volts (277V), nominal, to ground shall be permitted to supply the following:
(1) Listed electric-discharge luminaires (lighting fixtures);
(2) Listed incandescent luminaires (lighting fixtures), where supplied at one hundred and twenty volts (120V) or less from the output of a step-down autotransformer that is an integral component of the luminaire (fixture) and the outer shell terminal is electrically connected to a grounded conductor of the branch circuit;
(3) Luminaires (lighting fixtures) equipped with mogul-base screw shell lampholders;
(4) Lampholders, other than screw shell type, applied within their voltage ratings;
(5) Auxiliary equipment of electric-discharge lamps; and
(6) Cord-and-plug-connected or permanently connected utilization equipment.
In no case shall such light fixtures be mounted less than eight feet (8') above finished floor. Such circuits shall be switched at a panel board, using Type SWD breakers, or at a low-voltage relay switch.
2. Article 210.8 Ground-Fault Circuit Interrupter Protection for Personnel. Amend by adding the following new Article 210.8(F):
Article 210.8(F) All Other Areas. Ground-fault circuit-interrupter protection for personnel shall be installed on all 125-volt, single-phase, 15- and 20-ampere receptacles installed in areas where, in the opinion of the Building Official, or his agent, a potential ground-fault hazard may exist.
3. Article 210.11(C)(3) Bathroom Branch Circuits. Delete in its entirety and in lieu thereof substitute with the following new Article 210.11(C)(3):
Article 210.11(C)(3) Bathroom Branch Circuits. In addition to the number of branch circuits required by other parts of the section, a separate twenty (20) ampere branch circuit shall be provided to supply each bathroom or powder room.
4. Article 230.79(C) One-Family Dwelling. Delete in its entirety and in lieu thereof substitute with the following new Article 230.79(C):
Article 230.79(C) One-Family Dwelling. For a one family dwelling, the service disconnecting means shall have a rating of not less than two hundred (200) amperes, 3-wire.
5. Article 250.64 Grounding Electrode Conductor Installation. Amend by adding the following to the end of the paragraph:
"... However, the metal water piping system grounding electrode conductor for the service shall terminate at the street side of the domestic water service and shall be protected by rigid metal conduit, intermediate metal conduit, electrical metallic tubing, or approved cable armor. The grounding electrode shall be copper and the water meter shall be provided with an adequate jumper. All service grounding electrode connections shall have an identifying tag attached to the ground clamp."
6. Article 300.1(A) All Wiring Installations. Amend by adding the following to the end of the section:
"... Where any wiring method or materials permitted by the National Electrical Code/2017 shall have been prohibited by this article, such wiring methods or materials shall be considered to be prohibited when referred to in any section, article or provisions of the National Electrical Code/2017."
7. Article 300.4 Protection Against Physical Damage. Amend by adding the following new Article 300.4(I):
Article 300.4(I) Circuits Under Fifty Volts (50V). In all non-residential applications all wiring for circuits under fifty volts (50V) in non-accessible areas shall be installed in an approved raceway but may be run exposed in accessible areas such as, but not limited to, spaces above dropped ceilings, attic spaces, and crawl spaces; said wiring must be properly fastened.
8. Article 300.5(D)(3) Service Conductors. Amend by adding the following sentence to the end of the paragraph:
"... Where any service conductors including secondary or subfeeder crosses under driveways, parking lots or vehicle traffic ways said conductors shall be encased in rigid metal conduit or intermediate metal conduit."
9. Article 310.106(A) Minimum Size of Conductors. Delete in its entirety and in lieu thereof substitute with the following new Article 310.106(A):
Article 310.106(A) Minimum Size of Conductors. The minimum size of conductors shall be as shown in Table 310.106(A), except as permitted elsewhere in this code. In no case shall the size of conductors covered or under the classification of commercial or industrial applications be no less than no. 12 copper conductor.
10. Article 310.106(B) Conductor Material. Delete in its entirety and in lieu thereof substitute with the following new Article 310.106(B):
Article 310.106(B) Conductor Material. Conductors in this code shall be composed of copper only.
11. Article 320 Armored Cable; Type AC. Delete in its entirety.
12. Article 324, Flat Conductor Cable: Type FCC. Delete in its entirety
13. Article 326, Integrated Gas Spacer Cable. Type IGS. Delete in its entirety
14. Article 330.10 Uses Permitted. Delete in its entirety and in lieu thereof substitute with the following new Article 330.10:
Article 330.10 Uses Permitted. Type MC Cable shall be permitted only as prefabricated lengths for lighting control and signal circuits within dry interior locations. Such prefabricated lengths shall not be field altered.
15. Article 334 Nonmetallic-Sheathed Cable. Types NM, NMC, and NMS: Delete in its entirety.
16. Article 338, Service-Entrance Cable. Types SE and USE: Delete in its entirety.
17. Article 340 Underground Feeder and Branch-Circuit Cable. Type UF: Delete in its entirety
18. Article 352.10 Uses Permitted. Delete sub-articles (A), (C), (E), (F) and (H) in their entireties.
19. Article 353.10 Uses Permitted. Delete in its entirety and in lieu thereof substitute with the following new Article 353.10:
Article 353.10 Uses Permitted. HDPE conduit shall be permitted to be used solely in conjunction with directional boring equipment.
20. Article 354, Nonmetallic Underground Conduit with Conductors. Type NUCC: Delete in its entirety.
21. Article 356.10 Uses Permitted. Delete in its entirety and in lieu thereof substitute with the following new Article 356.10:
Article 356.10 Uses Permitted. LFNC conduit shall be permitted to be used solely where protection of the contained conductors is required from corrosive vapors, liquids and solids.
22. Article 358.10 Uses Permitted. Delete in its entirety and in lieu thereof substitute the following new Article 358.10:
Article 358.10 Uses Permitted. The use of EMT shall be permitted for both exposed and concealed work. Exposed work shall not be subject to physical damage.
23. Article 358.12 Uses Not Permitted. Delete in its entirety and in lieu thereof substitute with the following new Article 358.12:
Article 358.12 Uses Not Permitted. EMT shall not be used under the following conditions:
(1) Where, during installation or afterward, it will be subject to physical damage;
(2) Where installed in wet or damp locations;
(3) Where installed in concrete, in direct contact with the earth or in other areas subject to corrosive influences;
(4) In cinder concrete or cinder fill;
(5) In any hazardous (classified) location, except as permitted by Articles 502.10, 503.10 or 504.20;
(6) For the support of luminaires (fixtures) or other equipment except conduit bodies no larger than the largest trade size of the tubing; or
(7) Where practicable, dissimilar metals, in contact anywhere in the system shall be avoided to eliminate the possibility of galvanic action.
Exception: aluminum fittings and enclosures shall be permitted to be used with EMT where not subject to severe corrosive influences.
24. Article 362 Electrical Nonmetallic Tubing. Type ENT: Delete in its entirety
25. Article 368.2 Definition. Delete in its entirety and in lieu thereof substitute with the following new Article 368.2:
Article 368.2 Definition. Busway. A grounded metal enclosure containing factory-mounted, bare or insulated conductors, which shall be copper bars, rods or tubes.
26. Article 394 Concealed Knob-and-Tube Wiring. Delete in its entirety
27. Article 398 Open Wiring on Insulators. Delete in its entirety
28. Article 406.4 General Installation Requirements. Delete the second sentence in its entirety and in lieu thereof substitute with the following new sentence:
... "General installation requirements shall be in accordance with 406.4(A) through (G)."
29. Article 406.4 General Installation Requirements. Amend by adding the following new Article 406.4(G):
Article 406.3(G) Terminating Wires. Wires shall terminate on the respective screw terminals. The use of stab-lock connections or terminations is prohibited.
30. Article 410.36(B) Suspended Ceilings. Delete in its entirety and in lieu thereof substitute with the following new Article 410.36(B):
Article 410.36(B) Means of Support. Lighting fixtures installed in or above a suspended type ceiling shall be supported from at least two sides or opposite corners to the main structure of the building.
31. Article 410.44 Methods of Grounding. Delete in its entirety and in lieu thereof substitute with the following new Article 410.44:
Article 410.44 Methods of Grounding. Fixtures and equipment shall be considered grounded where mechanically connected to an equipment grounding conductor as specified in Article 250.118 and sized in accordance with Article 250.122. Each new parking lot, drive lane, and street lighting pole shall be grounded by a separate grounding rod as well as an approved grounding conductor which shall originate in the electrical panelboard that supplies the power for the lighting pole. The grounding rods shall be a minimum of ten feet (10') in length and five-eighths inch (5/8") in diameter. All fixtures must be able to be serviced without dismantling the fixture hanging equipment.
32. Article 605.4 Wireways. Amend by adding the following new article 605.4(A):
Article 605.4(A) Non-Metallic Wireways. Portable office partitions, such as cubicles, remountable wall systems, modular offices, etc., with non- metallic wireways shall be wired with flexible metal conduit between outlets. Partitions are to be wired to the permanent power source and approved by the Building Official or Electric Inspector. The wiring of portable office partitions shall be subject to the review of the Building Official and shall conform to all other conditions as listed in Article 605.
(C) Additional Standards And Specifications:
1. Electrical Work To Be Performed By Licensed Electrician: All electrical installations, alterations, replacements and repairs must be performed by a licensed electrician; except that the owner of a single-family home may perform electrical work on that single-family home if said structure is their principal residence.
2. Contractor Requirements For Permit: All electrical contractors working within the Village of Willowbrook must furnish the Department of Municipal Services with a copy of their Municipal electrical license, an up to date Certificate of Insurance and a surety bond prior to the issuance of an electrical permit.
3. Conduit; On Or Below Grade: Heavy wall rigid metal conduit or intermediate metallic conduit shall be used in all poured concrete on or below grade. EMT is not permitted in this application.
4. Conduit; Exposed Exterior: Rigid metallic conduit or intermediate metallic conduit (IMC) shall be used in all exposed exterior installations. EMT is not permitted in this application.
5. PVC Aboveground: No PVC (RNC) shall emerge from the ground, concrete slab or encasement. PVC (RNC) shall convert to galvanized rigid conduit or intermediate conduit prior to its emergence, at the minimum cover depth required by table 300.5.
6. PVC As A Service Entry Conduit: The use of PVC (RNC) is not permitted as a service entrance or service lateral conduit.
7. Use Of EMT: The use of EMT under concrete floor slabs, below grade or outdoors is prohibited.
8. EMT Fittings: Fittings for EMT, heavy wall rigid conduit and intermediate metallic conduit shall either be threaded, set screw or compression type up to and including trade size two inch (2"). Larger than two inch (2") shall utilize threaded or compression fittings only.
9. Low Voltage Conductors: Low voltage conductors (not to exceed 50 volts) may be installed in plenums without raceway protection (except where passing through partitions or subject to mechanical injury) when the conductor/cable is listed by Underwriters Laboratories, Inc. (UL) for this purpose.
10. Minimum Service Size: For commercial and single family dwelling applications the minimum service size shall be two hundred (200) amperes.
11. Distribution/Subpanels; Service Entrance: All distribution/subpanels shall be provided with a main disconnect.
12. Breakers: The use of twin, tandem or mini type breakers are not permitted.
13. Electrical Plan: Where new construction or alteration work involves electrical work of any type, the construction plans shall include a complete electrical plan that contains, where applicable, all the following information and details necessary for a complete review, including, but not limited to, the following:
(a) Size and voltage of existing service.
(b) A panel schedule for all electrical panels affected by the proposed work. Panel schedule shall include, in part, the size of all overcurrent protection devices, and the connected load in wattage (VA) for each branch circuit.
(c) A one-line diagram of the electrical service and service equipment identifying the locations and sizes of all overcurrent protection devices, the size and type of all service entrance and feeder conduit and conductors and complete details on the service grounding system including the types of all grounding electrodes and the size and type of all grounding electrode conductors.
(d) Location of service entrance equipment, panel boards and cabinets.
(e) Size and type of conductor and conduit.
(f) Size, type and location of outlets.
(g) Location of major appliances and equipment.
(h) An equipment schedule identifying all major equipment, appliances, motors, etc., and their electrical specifications and ratings.
(i) A lighting schedule identifying all proposed light fixtures including exit signs and emergency lights and their electrical specifications and ratings.
(j) Locations of all exit signs and emergency lights.
(k) All other documents and information required by the building official.
14. Plan Review: All plans must be reviewed and approved by the Village of Willowbrook building official.
15. Installation Approval: All installations must be approved by the building official in the field prior to occupancy or use.
16. Panel Circuitry Directory Card: Every electrical panel shall contain a permanently affixed panel circuitry directory card identifying all circuits.
17. Grounding Electrode Clamp: An approved nonferrous metal tag shall be attached to the grounding electrode clamp giving warning against its removal.
18. Minimum Size Conductor: The minimum size conductor for all commercial and industrial work shall be no. 12 AWG, copper, except for individual lighting whips and in control wiring where the conductors carry only the control load.
19. Multiple Entrances: All rooms with multiple entrances or exits which are more than six feet (6') apart shall utilize three-way or four-way switches unless an alternate arrangement is approved by the building official.
20. Overhead Feeders; Branch Circuit Conductors: Exterior overhead feeders or branch circuit conductors are not permitted.
21. Outlets Required:
(a) An outside lighting fixture controlled by an interior switch shall be installed at each exterior entrance, service door, porch, balcony, sliding glass door area, etc.
(b) Attics shall have at least one light fixture controlled by a local wall switch on the floor below or by a switch located within the attic and placed no more than three feet (3') from the entrance of the attic.
(c) Receptacle locations for offices and similar areas shall be located such that for all walls greater than two feet (2') in width, no point on the wall shall be more than six feet (6') horizontally from a receptacle.
(d) All hallways greater than ten feet (10') in length and all lobbies or waiting areas shall have at least one receptacle.
22. Wiring Methods:
(a) Ground fault circuit interrupter outlets shall be resetable at each individual outlet, except that a ground fault circuit interruption device may be used for more than one outlet if the outlets are in the same room, in accordance with the manufacturer's installation guidelines.
(b) All light fixtures above a bathtub or in a shower must be installed with ground fault circuit interrupter protection and approved for this type of installation. Said ground fault circuit interrupter shall not disconnect any other light fixture.
(c) No switches shall be allowed within four feet (4'), measured horizontally, from the inside wall of any tub or shower stall.
(d) All box connectors shall be of a "thread and locknut" type.
(e) Modular or plug together lighting shall be permitted only by special approval by the building official. In no way shall any modular or plug together system be mechanically inferior to standard "hard wiring" methods.
23. Exit Signs: All one hundred fifteen (115) volt illuminated exit signs shall derive their power from a separate, dedicated circuit.
24. Exterior Illuminated Signs: Each exterior illuminated sign shall have a disconnect on or within the immediate vicinity of the sign.
25. Work Without Benefit Of A Permit: When work requiring a permit has been started prior to the issuance of such permit, the permit fee shall be double the amount of the standard permit fee. However, in no instance shall the fee for a permit issued under these circumstances exceed the standard permit fee by an amount in excess of:
(a) Residential Districts: Two hundred fifty dollars ($250.00).
(b) Nonresidential Districts: Seven hundred fifty dollars ($750.00). (Ord. 19-O-10, 6-24-2019)