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Chapter 2.
Wiring and Protection
Wiring and Protection
ARTICLE 210 – BRANCH CIRCUITS
210.5(C)(1)(a) Revise this section as follows:
(a) Means of Identification. The means of identification for conductors #8AWG or larger shall be permitted to be by separate color coding, marking tape, tagging, or other approved means. Conductors of any size in cable assemblies may be suitably identified at all termination, connection and splice points. Conductor insulation in raceways shall contain continuous color pigment for circuit wire sizes # 10 AWG and smaller.
Phase Identification Colors for Branch Circuits shall be as follows:
(1) 120/240 Volt 3-Wire Single Phase Systems – “A” Phase Black, “B” Phase Red.
(2) 120/208 Volt 4-Wire 3-Phase Wye Systems – “A” Phase Black, “B” Phase Red, “C” Phase Blue.
(3) 120/240 Volt 3-Phase Delta Systems – “A” Phase Black, “B” (High Leg) Phase Purple, “C” Phase Red.
Information Note: New Construction or Complete Remodel of an Existing Building
(4) 120/240 Volt 3-Phase Delta Systems – “A” Phase Black, “B” Phase Red, “C” (High Leg) Phase Purple.
Information Note: Partial Remodel of an Existing Building – i.e. Replace Main Electrical Service where “C” Phase is Purple, & Re-Connect Existing Panels.
(5) 277/480 Volt 4-Wire 3-Phase Wye Systems – “A” Phase Brown, “B” Phase Orange, “C” Phase Yellow.
(6) Ungrounded conductors for other voltages shall be identified by different color coding, marking tape, tagging, or other approved means.
(7) Branch Circuit Conductors for switch legs may be of a different color than the Ungrounded Circuit Conductor when suitably identified at pull boxes, junction boxes and outlet boxes with marking tape, tagging or other equally effective means.
Exception No 1: In Multi-Family Dwelling Unit Buildings supplied by 120/208 Volt 4-Wire 3-Phase Systems, within Dwelling Units supplied by 120/208 Volt 3-Wire Single Phase Systems, Ungrounded Branch Circuit Conductor shall be permitted to be “A” Phase Black, “B” Phase Red.
Informational Note: See Section 200.7 for limitations on re-identification of white or grey for Grounded Conductors, and 250.119 for prohibition on using Green for Ungrounded Conductors.
ARTICLE 215 – FEEDERS
215.12(C)(1)(a) Revise this section as follows:
(a) Means of Identification. The means of identification for conductor #8 AWG or larger shall be permitted to be by separate color coding, marking tape, tagging, or other approved means. Conductors of any size in cable assemblies may be suitably identified at all termination, connection and splice points.
Phase Identification Colors for Feeders shall be as follows:
(1) 120/240 Volt 3-Wire Single Phase Systems – “A” Phase Black, “B” Phase Red.
(2) 120/208 Volt 4-Wire 3-Phase Wye Systems – “A” Phase Black, “B” Phase Red, “C” Phase Blue.
(3) 120/240 Volt 3-Phase Delta Systems – “A” Phase Black, “B” Phase (High Leg) Purple, “C” Phase Red.
Information Note: New Construction or Complete Remodel of an Existing Building
(4) 120/240 Volt 3-Phase Delta Systems – “A” Phase Black, “B” Phase Red, “C” Phase (High Leg) Purple.
Information Note: Partial Remodel of an Existing Building – i.e. Replace Main Electrical Service where “C” Phase is Purple, & Re-Connect Existing Panels.
(5) 277/480 Volt 4-Wire 3-Phase Wye Systems – “A” Phase Brown, “B” Phase Orange, “C” Phase Yellow.
(6) Ungrounded conductors for other voltages shall be identified by different color coding, marking tape, tagging, or other approved means.
(7) Branch Circuit Conductors for Switch Legs may be of a different color than the Ungrounded Feeder Circuit Conductor when suitably identified at pull boxes, junction boxes and outlet boxes with marking tape, tagging or other equally effective means.
(8) In Multi-Family Dwelling Unit Buildings supplied by 120/208 Volt 4-Wire 3-Phase Systems, within Dwelling Units supplied by 120/208 Volt- 3-Wire Single Phase Systems, within Dwelling Units supplied by 120/208 Volt 3-Wire Single Phase Systems, Ungrounded Feeder Conductors shall be the following:
a) 120/208 Volt 3 Wire Single Phase “A” Phase Black, “B” Phase Red
b) 120/208 Volt 3 Wire Single Phase “B” Phase Red, “C” Phase Blue
c) 120/208 Volt 3 Wire Single Phase “A” Phase Black, “C” Phase Blue
d) Labeling Required at the Sub-Panel indicating which Phases Serve the Unit from the 120/208 Volt 4-Wire 3-Phase Multi / Meter Distribution System
Informational Note: See Section 200.7 for limitations on identification of white or grey for Grounded Conductors, and 250.119 for prohibition on using Green for Ungrounded Conductors.
Informational Note: See 210.5(C)(1) for additional information regarding Identification of Ungrounded Conductors.
ARTICLE 230 – SERVICES
230.43 Revise this section as follows:
(A) Acceptable Wiring Methods. 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) Reserved
(2) Reserved
(3) Rigid metal conduit (RMC)
(4) Intermediate metal conduit (IMC)
(5) Reserved
(6) Reserved
(7) Reserved
(8) Reserved
(9) Busways
(10) Auxiliary gutters
(11) Rigid polyvinyl chloride conduit (PVC)
(12) Reserved
(13) Reserved
(14) Mineral-insulated, metal sheathed cable, Type MI
(15) Reserved
(16) Reserved
(17) High density polyethylene conduit (HDPE)
(18) Non-metallic underground conduit with conductors (NUCC)
(19) Reinforced thermosetting resin conduit (RTRC)
(B) Raceway Size. Minimum raceway size shall comply with the following:
(1) Except as provided in Section 230.43(B)(2) and (3) the minimum size raceway installed for service entrance conductor shall be 1-1/4 inch (31.8 mm).
(2) Raceways for service entrance conductors for sign or billboard lighting shall not be smaller than 3/4 inch (19.1 mm) conduit.
(3) Installations consisting of not more than two 2-wire branch circuits may be supplied by No. 8 conductors in 3/4 inch (19.1 mm) conduit.
Exception: New service entrance conductors may be re-pulled in previously approved service raceways, provided the installation complies with the requirements of SFEC Section 89.116 and Chapters 1, 2 and 3.
Informational Note: Refer to electric utility service requirements for raceway sizes.
230.56 Revise this section as follows:
230.56 Service Conductor with the Higher Voltage to Ground. On a four-wire, delta-connected service, where the midpoint of one phase winding is grounded, the service conductor having the higher phase voltage to ground shall be durably and permanently marked by an outer finish that is purple in color, or by other effective means, at each termination or junction point.
230.71(A) Revise this section and add two exceptions as follows:
(A) General. The service disconnecting means for each service permitted by 230.2, or for each set of service-entrance conductors permitted by 230.40, Exception Nos. 1, 3, 4, or 5, shall consist of a single circuit breaker or switch and set of fuses.
For the purpose of this section, disconnecting means installed as part of listed equipment and used solely for the following shall not be considered a service disconnecting means:
(1) Power monitoring equipment
(2) Surge-protective device(s)
(3) Control circuit of the ground-fault protection system
(4) Power-operable service disconnecting means.
Exception No. 1:
a) Multi-Family Dwellings with a Maximum of (6) units, shall consist of not more than six switches or sets of circuit-breakers, or a combination of not more than six switches and sets of circuit breakers, mounted in a single enclosure, in a group of separate enclosures, or in or on a switchboard or in switchgear.
b) There shall be not more than six sets of disconnects per service grouped in any one location.
Exception No. 2: A Single Main Circuit Breaker or set of fuses shall be provided for each Dwelling Unit.
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