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<br />detached garage with electric power. See Sections 210-8(a)(2) and (a)(5). Where a portion of the basement is <br />finished into a habitable room( s), the receptacle outlet required by this section shall be installed in the <br />unfinished portion. ,}~~ <br /> <br />(h) Hallways. In dwelling units, hallways of 10ft (3.05 m) or more in length shall have at least one receptacle <br />outlet. <br /> <br />As used in this subsection, the hall length shall be considered the length along the centerline of the hall without <br /> <br />passing through a doorway. .'.c___~ <br /> <br />. 250-50. Grounding Electrode System <br /> <br />If available on the premises at each building or structure served, each item (a) through (d), and any made <br />electrodes in accordance with Sections 250-52( c) and (d), shall be bonded together to form the grounding <br />electrode system. The bondingjumper(s) shall be installed in accordance with Sections 250-64(a), (b), and (e), <br />shall be sized in accordance with Section 250-66, and shall be connected in the manner specified in Section <br />250-70. <br /> <br />An unspliced grounding electrode conductor shall be permitted to be run to any convenient grounding electrode <br />available in the grounding electrode system or to one or more grounding electrode(s) individually. It shall be <br />sized for the largest grounding electrode conductor required among all the electrodes connected to it. <br /> <br />fc~___~,CI <br /> <br />The grounding electrode conductor shall be unspliced or spliced by means of irreversible compression-type <br />connectors listed for the purpose or by the exothermic welding process. <br /> <br />Interior metal water piping located more than 5 ft (1.52 m) from the point of entrance to the building shall not <br />be used as a part of the grounding electrode system or as a conductor to interconnect electrodes that are part of <br />the grounding electrode system. <br /> <br />Exception: In industrial and commercial buildings where conditions of maintenance and supervision ensure <br />that only qualified persons will service the installation and the entire length of the interior metal water pipe that <br />is being used for the conductor is exposed. T~~i <br /> <br />FPN: See Sections 547-8 and 547-9 for special grounding and bonding requirements for agricultural buildings. <br /> <br />( a) Metal Underground Water Pipe. A metal underground water pipe in direct contact with the earth for 10ft <br />(3.05 m) or more (including any metal well casing effectively bonded to the pipe) and electrically continuous <br />(or made electrically continuous by bonding around insulating joints or sections or insulating pipe) to the points <br />of connection of the grounding electrode conductor and the bonding conductors.c~_'J <br /> <br />(1) Continuity. Continuity of the grounding path or the bonding connection to interior piping shall not rely on <br />water meters or filtering devices and similar equipment. <br /> <br />(2) Supplemental Electrode Required. A metal underground water pipe shall be supplemented by an <br />additional electrode of a type specified in Sections 250-50 or 250-52. Where the supplemental electrode is a <br />made electrode of the rod, pipe, or plate type, it shall comply with Section 250-56. The supplemental electrode <br />shall be permitted to be bonded to the grounding electrode conductor, the grounded service-entrance conductor, <br />the nonfIexible grounded service raceway, or any grounded service enclosure. !fc~~l <br /> <br />Exception: The supplemental electrode shall be permitted to be bonded to the interior metal water piping at <br />