(310.15(B)(3)(a))
________________________________________________________________
Submitter: Donald A. Ganiere, Ottawa, IL
Recommendation: Add new text to read as follows:
(3) Adjustment Factors.
(a) More Than Three Current-Carrying Conductors in a Raceway or Cable.
Where the number of current-carrying conductors in a raceway or cable exceeds three, or where single conductors or multiconductor cables are installed without maintaining spacing for a continuous length longer than 600 mm (24 in.) and are not installed in raceways, the allowable ampacity of each conductor shall be reduced as shown in Table 310.15(B)(3)(a). Each current carrying conductor of a paralleled set of conductors shall be counted as a current-carrying conductor.
Substantiation: Delete ?in a Raceway or Cable?. Those words are in conflict with the wording in the section itself. The section wording makes it clear that a current adjustment factor is required for three or more current carrying
conductors that are installed without maintaining spacing and are not in a raceway or cable.
Panel Meeting Action: Reject
Panel Statement: Section 310.15(B)(3)(a) is specific to conductors in raceway or cable. This section provides references to other sections, but contains rules for only conductors in raceways or cables.
Number Eligible to Vote: 10
Ballot Results: Affirmative: 10