The provisions of Article 230 of NFPA 70 are adopted by reference with the following modifications:
1. Revise subsection 230.30(B) to read:
"Wiring Methods. Underground service conductors shall be installed in accordance with the applicable requirements of this Code covering the type of wiring method used and shall be limited to the following:
(1) Type RMC conduit
(2) Type IMC conduit
(3) Type HDPE conduit
(4) Type PVC conduit
(5) Type RTRC conduit
(6) Type USE conductors or cables identified for direct burial applications
(7) Type MV cable identified for direct burial applications
(8) Type MI cable, where suitably protected against physical damage and corrosive conditions"
2. Revise section 230.43 to read:
"Wiring Methods for 1,000 Volts, Nominal, or Less. Service-entrance conductors shall be installed in accordance with the applicable requirements of this Code covering the type of wiring method used and shall be limited to the following methods:
(1) Rigid metal conduit
(2) Intermediate metal conduit
(3) Service-entrance cables for existing residential occupancies of not more than three dwelling units
(4) Busways
(5) Cablebus
(6) Mineral-insulated, metal-sheathed cable."
3. Delete section 230.44.
4. Revise section 230.46 to read:
"Spliced Conductors. Service entrance conductors shall only be spliced in accordance with 230.46 (1) through (6):
(1) Clamped or bolted connections in metering equipment enclosures
(2) Where service entrance conductors are tapped from a utility controlled and locked (to prevent unauthorized access) bussed tap box, to supply two to six disconnecting means grouped at a common location
(3) In an approved utility owned service splice box, where utility sized conductors are connected to conductors that supply customers service equipment and are sized to this chapter
(4) A connection shall be permitted where service conductors are extended from a service drop to an outside meter location and returned to connect to the service entrance conductors of an existing installation
(5) Where the service entrance conductors consist of busway, connections shall be permitted as required to assemble the various sections and fittings
(6) For existing service-entrance conductors, it shall be permissible to install listed underground splice kits for:
(a) Repair of existing conductors
(b) Extension of conductors by special permission."
5. Revise subsection 230.50(B) to read:
"Above Ground Service Conductors and Cables. Service-entrance conductors installed above ground shall be protected against physical damage as specified in 230.50(B)(1) or (B)(2), and shall comply with (B)(3) where applicable.
(1) Service-Entrance Cables. Service-entrance cables, where subject to physical damage, shall be protected by any of the following:
(a) Rigid metal conduit
(b) Intermediate metal conduit
(c) Other approved means
(2) Other Than Service-Entrance Cable. Individual open conductors and cables other than service- entrance cables shall not be installed within 3.0 m (10 ft) of grade level or where exposed to physical damage.
Exception: Type MI cable shall be permitted within 3.0 m (10 ft) of grade level where not exposed to physical damage or where protected in accordance with 300.5(D).
(3) On Alley Side of Building. Service raceways or service-entrance cable on the alley side of buildings where subject to mechanical injury by vehicles shall be embedded flush in the masonry or concrete wall, or shall be suitably protected up to a height of 3.7 m (12 ft) above grade."
6. Revise section 230.51 to read:
"Mounting Supports. Service-entrance cable conductors shall be supported by straps or other approved means within 300 mm (12 in.) of ever service head, gooseneck, or connection to a raceway or enclosure and at intervals not exceeding 750 mm (30 in.)."
7. Delete table 230.51(C).
8. Revise subsection 230.70(A) to read:
"(A) Location. The service disconnecting means shall be installed in accordance with 230.70(A)(1), (A)(2), (A)(3), (A)(4), and (A)(5).
(1) One-Family Dwellings. In one-family dwellings the service disconnecting means shall be installed at a readily accessible location in the basement or first floor of the building at a point not exceeding 1.52 m (5 ft) from the point of entry into the building. When the length of the service raceway exceeds 1.52 m (5 ft) from the point of entry into the building, the service raceway shall conform to the requirements of 230.6.
(2) In Other Than One-Family Dwellings. In other than one-family dwellings, the service disconnecting means shall be installed at a readily accessible location either outside of the building or structure or inside the building or structure nearest the point of entrance of the service conductors. When the length of the service raceway exceeds 1.52 m (5 ft) from the point of entry into the building, the service raceway shall conform to the requirements of 230.6.
(3) Bathrooms. Service disconnecting means shall not be installed in bathrooms.
(4) Remote Control. Where a remote control device(s) is used to actuate the service disconnecting means, the service disconnecting means shall be located in accordance with 230.70(A)(1).
(5) High Rise Buildings. In high rise buildings and other similar buildings of large area, the disconnecting means for the multiple services recognized by 230.2(B)(2) shall be located in a dedicated fire-rated room as near as practical to the serving utility vault.
The rooms for the "main" service disconnecting means which serve the building common element loads shall comply with 110.31. The electrical service rooms for tenant loads shall comply with 110.26. These rooms shall be for the exclusive use of electrical equipment.
Separate service disconnecting means shall be required for each tenant floor. These disconnects shall be permitted to be located on a floor other than the floor served. Where more than one service is permitted to serve one floor, the various disconnecting means and their locations shall be prominently identified as required by 230.2(E)."
9. Insert the following language immediately before the exception in section 230.95:
"Where busway is served by a feeder or sequence service disconnect rated 1,000 amperes or more, ground-fault protection of equipment shall be provided for solidly grounded wye electrical systems of any voltage."
10. Delete informational notes 1 through 4 to section 230.95.
(Amend Coun. J. 1-23-19, p. 94952, Art. I, § 17)