Original Version

Rule 54.6-H

54.6-H.    Attachment of Protective Covering

Protective covering shall be attached to poles, crossarms and structures by means of corrosion-resistant straps, lags or staples which are adequate to maintain such covering in a fixed position.

Where such covering consists of hardwood or rigid plastic moulding, the distance between straps, lags or staples shall not exceed three feet on each side and due care shall be exercised to avoid the possibility of nails protruding through any inner surface.

When U-shaped moulding is utilized appropriate gaps between sections shall be provided to permit expansion due to temperature variations and such gaps shall be covered by corrosion resistant straps to prevent contact with conductors covered by moulding.

Strikeout and Underline Version

Rule 54.6-H

54.6-H.    Attachment of Protective Covering Clearance From Hardware on Wood Poles or Structures

Protective covering shall be attached to poles, crossarms and structures by means of corrosion-resistant straps, lags or staples which are adequate to maintain such covering in a fixed position.

Where such covering consists of hardwood or rigid plastic moulding, the distance between straps, lags or staples shall not exceed three feet on each side and due care shall be exercised to avoid the possibility of nails protruding through any inner surface.

When U-shaped moulding is utilized appropriate gaps between sections shall be provided to permit expansion due to temperature variations and such gaps shall be covered by corrosion resistant straps to prevent contact with conductors covered by moulding.

On wood pole or wood structures, all ground wires, conductor or cable sheaths (concentric wire, metallic braids and tapes, or other metallic coverings), metallic conduit of risers or runs, and the metallic hardware used for attaching such conduits, risers or runs to structures, and the metallic hardware used for attaching such conduits, and metallic hardware used for attaching wood and U–shaped plastic ground moulding (excluding plastic conduit) to wood poles or wood structures shall be not less than 1.5 inches from guy hardware, bolts, braces, pole steps, and other metallic hardware not associated with the risers or runs.  In cases where it is not practicable to obtain at least 1.5 inches of air-gap and creepage distance, suitable insulating material (sheeting, conduit, etc.) meeting the minimum insulating efficiency, as required by Rule 22.2–B, of 1100 kV/in (1.1 kV/mil) shall be used to provide the necessary a creepage distance of 1.5 inches.

Final Version

Rule 54.6-H

54.6-H.    Clearance From Hardware on Wood Poles or Structures

On wood pole or wood structures, all ground wires, conductor or cable sheaths (concentric wire, metallic braids and tapes, or other metallic coverings), metallic conduit of risers or runs, and the metallic hardware used for attaching such conduits, risers or runs to structures, and the metallic hardware used for attaching such conduits, and metallic hardware used for attaching wood and U–shaped plastic ground moulding (excluding plastic conduit) to wood poles or wood structures shall be not less than 1.5 inches from guy hardware, bolts, braces, pole steps, and other metallic hardware not associated with the risers or runs.  In cases where it is not practicable to obtain at least 1.5 inches of air-gap and creepage distance, suitable insulating material (sheeting, conduit, etc.) meeting the minimum insulating efficiency, as required by Rule 22.2–B, of 1100 kV/in (1.1 kV/mil) shall be used to provide the necessary a creepage distance of 1.5 inches.

(Editors Note on this Rule)