54.9-D.    Conductor Spacing and Span Length

The vertical separation between conductors supported as a group in rack construction shall be not less than the following for span lengths as indicated:

Strikeout and Underline Version

54.9-D.    Conductor Spacing and Span Length

The vertical separation between conductors supported as a group in rack construction shall be not less than the following for span lengths as indicated:

NOTE:    Resolution No. E-949 effective February 11, 1957, authorized that the provisions of Rule 54.9-C(1), 54.9-C(2) and 54.9-D shall not be held to apply to the use of 0-750 volt duplex service drop cable consisting of one suitably insulated conductor with a bare neutral conductor as the line conductor between a pole supporting street light circuits and metal and/or concrete electroliers or wood or steel poles where the latter supports street light fixtures.

Final Version

54.9-D.    Conductor Spacing and Span Length

The vertical separation between conductors supported as a group in rack construction shall be not less than the following for span lengths as indicated:

NOTE:    Resolution No. E-949 effective February 11, 1957, authorized that the provisions of Rule 54.9-C(1), 54.9-C(2) and 54.9-D shall not be held to apply to the use of 0-750 volt duplex service drop cable consisting of one suitably insulated conductor with a bare neutral conductor as the line conductor between a pole supporting street light circuits and metal and/or concrete electroliers or wood or steel poles where the latter supports street light fixtures.