Decision Number 05-01-030 -GO95-Rule 54.7-A3

54.7-A3 Allowable Climbing Space Obstructions: Allowable climbing space obstructions are:

b) Insulators and their attaching brackets which support line conductors may extend one�half of their diameter into the climbing space.

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

e) Guys (except those guys metallically contacting metal pins or deadend hardware as specified in Rule 52.7�D ). 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.

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

g) Operating rods (e.g. switch rods) may extend one�half their diameter into climbing space.

h) 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).

i) Bolts and their washers. However, bolts bonded to or used for the attachment of deadend hardware of circuits above 750 volts in wood crossarm configuration that project into the climbing space shall be covered with a non-conductive material as specified in Rule 22.2-C. If such bolts are bonded, a positive electrical contact shall be made.

Modification of these requirements in Rule 54.7-A3 are specified in: Rule 54.9-F for rack construction; Rule 54.10-F3 for multiconductor cable with bare neutral construction; Rule 54.11-G for triangular and vertical construction without wood crossarms; Rule 54.12-F3 for extended rack construction; and Rule 58.3-A3 for switches.

54.7-A3 Allowable Climbing Space Obstructions: Allowable climbing space obstructions are:

b) Insulators and their attaching brackets which support line conductors may extend one�half of their diameter into the climbing space.

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

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

g) Operating rods (e.g. switch rods) may extend one�half their diameter into climbing space.

h) Band(s), limited to 6 inches in total width ~~with no more than one band~~ are allowed in any 24-inch section of climbing space. (tThese limitations are excluded for pole stubbing and pole splicing bands when pole step provisions are installed).

i) Pole restoration techniques are allowed in climbing space provided pole steps are placed in the restoration area as part of the process. Pole stepping shall be in accordance with Rules 51.7 and 81.6. Hardware for the use of detachable pole steps shall be installed as part of the restoration process from ground line to 7 feet 6 inches.

ij) Bolts and their washers. However, bolts bonded to or used for the attachment of deadend hardware of circuits above 750 volts in wood crossarm configuration that project into the climbing space shall be covered with a non-conductive material as specified in Rule 22.2-C. If such bolts are bonded, a positive electrical contact shall be made.

54.7-A3 Allowable Climbing Space Obstructions: Allowable climbing space obstructions are:

b) Insulators and their attaching brackets which support line conductors may extend one�half of their diameter into the climbing space.

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

e) Guys (except those guys metallically contacting metal pins of or deadend hardware as specified in Rule 52.7-D). 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.

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

g) Operating rods (e.g. switch rods) may extend one�half their diameter into climbing space.

h) Band(s), limited to 6 inches in total width are 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.

j) Bolts and their washers. However, bolts bonded to or used for the attachment of deadend hardware of circuits above 750 volts in wood crossarm configuration that project into the climbing space shall be covered with a non-conducting material as specified in Rule 22.2-C. If such bolts are bonded, a positive electrical contact shall be made.