Original Version

Rule 59.3-A

59.3-A.    Material

Conductors of common neutral systems shall be of copper, copper-covered steel, bronze, stranded composites of any of the foregoing, aluminum, aluminum cable steel reinforced, or of other corrosion-resisting metal, but shall not be galvanized iron or steel.

Related phase and neutral line conductors shall be of the same material, except that the neutral conductor may be of copper.

Strikeout and Underline Version

Rule 59.3-A

59.3-A.    Material

Conductors of common neutral systems shall be of copper, copper-covered steel, bronze, stranded composites of any of the foregoing, aluminum, aluminum cable steel reinforced, or of other corrosion-resisting metal, but shall not be galvanized iron or steel.

Related phase and neutral line conductors shall be of the same material, except that the neutral conductor may be of copper.

Final Version

Rule 59.3-A

59.3-A.    Material

Conductors of common neutral systems shall be of copper, copper-covered steel, bronze, stranded composites of any of the foregoing, aluminum, aluminum cable steel reinforced, or of other corrosion-resisting metal, but shall not be galvanized iron or steel.