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(A) It shall be unlawful for any person to alter, disturb or change any electrical wiring or equipment or to permit any electrical wiring or equipment to be altered, disturbed, or changed unless done in conformity with the requirements of county adopted codes and ordinances.
(B) Where rework or rewiring of any building or structure exceeds 50%, all wiring in the entire structure shall be installed per the currently adopted electrical code and ordinances.
(C) All electrical wiring on the load side of the meter shall be copper. Additional consideration may be given to aluminum service conductors on a case-by-case basis.
(D) Electrical metallic tubing (thin wall) shall be required throughout all structures, however, it shall not be installed underground or in concrete.
(E) All electrical services shall be rigid metal conduit, or intermediate metal conduit.
(1) Exception: The underground portion of services may include Schedule 80 PVC with rigid elbow or Schedule 80 PVC risers with a property sized ground per table 250-122 NEC.
(2) Exception: Direct burial service conductors with rigid sweep or Schedule 80 PVC sweep shall be permitted.
(F) No more than ten feet of service entrance conductor shall be permitted inside a building or structure without providing an exterior disconnect.
(G) A grounding electrode conductor complying with NEC 250.52(A)(3) shall be installed in footings. A supplemental ground rod, pipe, or plate type shall be installed per NEC 250.56. All grounding electrodes present at each building or structure served shall be bonded together to form the grounding electrode system.
(H) If required by the authority having jurisdiction a diagram showing service and feeders wire sizes, type of conductors, calculated loads, the area in square feet being supplied, and demand factors shall be submitted. Required panel schedules shall show connected loads, total connected loads per phase.
(I) NEC 210-8 shall be amended to apply to residential, commercial/industrial and accessory structures supplied with electrical power.
(J) NEC 210-52(b) Exp. 2 shall read as: The receptacle outlet for refrigeration equipment shall be supplied from an individual branch circuit rated 15 amperes or greater.
(K) At Article 210-8(b), add new item #6 to GFI protection other than dwelling units and where receptacles are within six feet of sink.
(L) Sizing of electrical services for dwellings: All measurements shall be taken from the outside of the walls of the dwelling unit.
(1) Dwelling units 2,500 square feet to 3,500 square feet shall have a minimum size electrical service of 200 amperes or greater.
(2) Dwelling units over 3,500 square feet shall have electrical services rated at least 350 amperes or greater.
(3) Exception: Load calculations may be presented to the Will County Building Department for review. The authority having jurisdiction determines the proper size electrical service based on the load calculation submitted. At no time shall the total calculated load exceed 80% of the service size.
(M) Storage spaces five square feet or more shall be illuminated per NEC Article 410-8.
(N) All rough-in electrical installations shall be completed before the rough inspection is scheduled (including attic and crawl spaces). Pull chain or wall switched attic light fixtures at or near attic access point are required. "In Use" switch shall be required with wall installation.
(O) All light fixtures shall have at least one lamp installed and all receptacles intended to be used for switched lighting shall be marked for the final inspection.
(P) All garages attached or detached with power are required to be on a separate 20 ampere circuit. (The 20 ampere circuit is a minimum requirement, more circuits may be added or required as needed.)
(Q) All ½ horsepower or larger motors and all appliances rated at 1127VA or greater shall be on its own dedicated circuit.
(R) Every panel box must have each circuit labeled. All electrical panels must be located a minimum of three feet from sump or ejector pit, laundry (mop) sink, and/or laundry tub.
(S) At Article 210-5, add a new subsection as follows, to read:
(1) All three phase 120/240 volt services shall have phases marked (A) Black (B) Red and (C) Blue.
(2) Add new subsection (d) as follows: All three phase 277/480 volt services shall have phases marked (A) Brown (B) Orange (C) Yellow with the neutral being of a gray color. Junction boxes shall be marked 277/480 volts with a permanent marker or approved sticker type products.
(T) In commercial and industrial installations:
(1) All switches for fire alarms, burglar alarms, exit signs, and emergency lighting shall be equipped with mechanical lockouts to prevent an accidental turnoff of the circuits.
(2) Emergency lighting shall be connected to a light circuit or equipped with a transfer switch in the event of a power failure.
(3) Floor exit proximity signs shall be required. This requirement shall extend to all IBC Group R occupancies.
(U) Add in section 680 Overhead Conductor: No above or inground swimming pool, hot tub, or recreational equipment capable of holding water or decks shall be permitted under any overhead wiring. Delete in section 680: community antenna systems.
(V) All commercial/industrial parking facilities having moderate to heavy traffic shall require galvanized steel conduit (IMC), RMC or Schedule 80 PVC under the paved areas for all power and lighting installations.
(W) NEC 2011 250.53(D1) shall read: Continuity- continuity of the grounding path or bonding connection to interior piping shall not rely on water meters, water softeners, water heaters, water filtering devices or other similar equipment.
(X) A three way/four way switch for multiple entrances to a room or hall exceeding eight feet between switch locations.
(Y) Provide single, dedicated plug for sump without GFI protection and GFI protected outlet in the same vicinity (NEC 2011).
(Ord. 14-103, passed 5-15-2014) Penalty, see § 150.999