Original Version
Rule 49.2-A
49.2-A. Material
(1) Wood: Wood crossarms shall be of suitable grades of Douglas fir. Southern Yellow pine or other accepted species.
(2) Metal: Metal crossarms shall be of structural steel cast steel, or malleable cast iron, properly galvanized or otherwise protected to resist corrosion, or may be of any corrosion-resisting metal or alloy.
(3) Pre-stressed Concrete: Pre-stressed concrete crossarms may be used provided they are designed in accordance with Rule 48.3-B.
Strikeout and Underline Version
Rule 49.2-A
49.2-A. Material
(1) Wood: Wood crossarms shall be of suitable grades of Douglas fir. Southern Yellow pine or other accepted species.
(2) Metal: Metal crossarms shall be of structural steel cast steel, or malleable cast iron, properly galvanized or otherwise protected to resist corrosion, or may be of any corrosion-resisting metal or alloy.
(3) Pre-stressed Concrete: Pre-stressed concrete crossarms may be used provided they are designed in accordance with Rule 48.3-B.
(4) Other Material: Other materials may be used for crossarms provided they comply with Rule 48.4.
Final Version
Rule 49.2-A
49.2-A. Material
(1) Wood: Wood crossarms shall be of suitable grades of Douglas fir. Southern Yellow pine or other accepted species.
(2) Metal: Metal crossarms shall be of structural steel cast steel, or malleable cast iron, properly galvanized or otherwise protected to resist corrosion, or may be of any corrosion-resisting metal or alloy.
(3) Pre-stressed Concrete: Pre-stressed concrete crossarms may be used provided they are designed in accordance with Rule 48.3-B.
(4) Other Material: Other materials may be used for crossarms provided they comply with Rule 48.4.