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Decision Number 20-01-010

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Original Version

Rule 54.12 F3

Rule 54.12F – Allowable Climbing Space Obstructions

(3) Allowable Climbing Space Obstructions: Allowable climbing space obstructions are:

(a) Guys. However, not more than two guys having a vertical separation of 18 inches or less can be installed in any 4–foot section of climbing space.

(b) Suitably protected (covered only by wood, see Rule 22.8):

1) Vertical risers; or

2) Vertical runs; or

3) Ground wires.

Such risers, runs and grounds are allowable provided that not more than one is installed in any 4–foot section of climbing space.

(c) Insulators and their attaching brackets may extend one–half their diameter into the climbing space.

(d) Conductors may extend one–half their diameter into the climbing space.

(e) Street light brackets may extend one–half their diameter into climbing space. Associated street light bracket struts are allowed in climbing space.

(f) Operating rods (e.g., switch rods) and their associated hardware may extend one–half their diameter into climbing space.

(g) Bands, limited to 6 inches in width with no more than one band allowed in any 24–inch section of climbing space (these limitations are excluded for pole stubbing and pole splicing bands when pole step provisions are installed.)

(h) Bolts and their washers.

The terminals or terminal fittings of risers or runs shall not be installed within climbing space.

Strikeout and Underline Version

Rule 54.12 F

Rule 54.12F – Allowable Climbing Space Obstructions

(3) Allowable Climbing Space Obstructions: Allowable climbing space obstructions are:

(a) Guys. However, not more than two guys having a vertical separation of 18 inches or less can be installed in any 4–foot section of climbing space.

(b) Suitably protected (covered only by wood, see Rule 22.8):

1) Vertical risers; or runs covered only by wood (see Rule 22.8‑B);

2) Vertical runs; or Ground wires covered by wood per Rule 22.8‑A1;

3) Ground wires covered by plastic, or other non‑conductive material no greater than one‑half inch in diameter (see Rule 22.8‑A3).

Such risers, runs, and grounds are allowable provided that not more than one is installed in any 4–foot section of climbing space.

(c) Insulators and their attaching brackets may extend one–half their diameter into the climbing space.

(d) Conductors may extend one–half their diameter into the climbing space.

(e) Street light brackets may extend one–half their diameter into climbing space. Associated street light bracket struts are allowed in climbing space.

(f) Operating rods (e.g., switch rods) and their associated hardware may extend one–half their diameter into climbing space.

(g) Bands, limited to 6 inches in width with no more than one band allowed in any 24–inch section of climbing space (these limitations are excluded for pole stubbing and pole splicing bands when pole step provisions are installed.)

(h) Bolts and their washers.

The terminals or terminal fittings of risers or runs shall not be installed within climbing space.

Reasonable efforts shall be made to avoid installing the above listed allowable obstructions within the climbing space.

Final Version

Rule 54.12 F

Rule 54.12F – Allowable Climbing Space Obstructions

(3) Allowable Climbing Space Obstructions: Allowable climbing space obstructions are:

(a) Guys. However, not more than two guys having a vertical separation of 18 inches or less can be installed in any 4–foot section of climbing space.

(b) Suitably protected:

1) Vertical riser or runs covered only by wood (see Rule 22.8‑B;

2) Ground wires covered by wood per Rule 22.8‑A1;

3) Ground wires covered by plastic, or other non‑conductive material no greater than one‑half inch in diameter (see Rule 22.8‑A3)

Such risers, runs, and grounds are allowable provided that not more than one is installed in any 4–foot section of climbing space.

(c) Insulators and their attaching brackets may extend one–half their diameter into the climbing space.

(d) Conductors may extend one–half their diameter into the climbing space.

(e) Street light brackets may extend one–half their diameter into climbing space. Associated street light bracket struts are allowed in climbing space.

(f) Operating rods (e.g., switch rods) and their associated hardware may extend one–half their diameter into climbing space.

(g) Bands, limited to 6 inches in width with no more than one band allowed in any 24–inch section of climbing space (these limitations are excluded for pole stubbing and pole splicing bands when pole step provisions are installed.)

(h) Bolts and their washers.

Reasonable efforts shall be made to avoid installing the above listed allowable obstructions within the climbing space.