- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
For the NC guys--- there have been an addition 5 amendments added to the list of amendments posted
Building Code Council Update 5 new amendments added
1- 300.3 (5) Existing Dwelling Panelboards. An equipment grounding conductor for an existing
one-and two-family dwelling shall be permitted to be installed separately and outside of the raceway or cable assembly where all the following conditions apply:
(a) When relocating or installing an additional service disconnecting means;
(b) Enacting 300.3(B)(a) redefines the existing service entrance conductors as a feeder in Article 100; and
(c) Replacement of the existing service entrance conductors requires the removal of the building finish or deemed impractical by the AHJ.
2- 250.140 Exception No. (2): For existing branch-circuit installations only where an equipment grounding conductor is no present in the outlet or junction box, and equipment grounding conductor sized in accordance with 250.122 shall be permitted to be run separately from the circuit conductors.
3- 240.142 Exception No. 5: It shall be permissible to ground an existing panelboard enclosure by connection to the grounded circuit conductor for a one-and two- family dwelling where all the following conditions apply:
(1) When relocation or installing an additional main disconnection means;
(2) Enacting 250.142(B) Exception No5(1) redefines the existing service entrance conductors as a feeder in Article 100;
(3) An equipment grounding conductor in the existing panelboard is not present;
(4) Replacement of the existing service entrance conductors requires either the removal of the building finish or deemed impractical by the AHJ;
(5) All grounding electrode conductors are removed completely from the existing panelboard; and
(6) The grounded conductors are insulated by tape, heat-shrink, or other approved means except where covered by the sheathing of a cable assembly or as needed for joints, splices, and termination purposes.
4- 250.53(A)(2) Supplemental Electrode Required:
Exception No. 2: The supplemental ground electrode shall not be required at temporary electrical service installation (saw service pole) at a construction site provided all ungrounded circuits do not exceed 150 volts to ground and the rating of the single disconnection means or summation of the ratings of multiple overcurrent devices that serve together as the disconnection means, does not exceed 100 amperes.
5- 300.9 Raceways in wet locations above Grade:
Exception: The raceway shall not be considered a wet location if:
(1) The section of raceway routed in a wet location above grade does not exceed 1.8m (6) feet in length;
(2) Any fitting or conduit bodies are watertight and list for use in wet location; and
(3) All termination points of the raceway are only open in any of the following:
a. A dry location;
b. Equipment suitable for outdoor use
c. Equipment listed for use in a wet location