SU25 GO95 rule 51.6-B

51.6-B. Guarding of Latticed Metal Poles and Other Latticed Structures

Where the pole or structure is of latticed metal or of similar construction and supports supply conductors in excess of 750 volts and is located in urban districts, or in rural areas adjacent to schools, dwellings, permanents or seasonal camps, or in orchards, or near roads or trails which are frequently traveled, a barrier shall be so located on the structure as to prevent easy climbing. If the bottom of the barrier is within 12 feet of the ground line, the top shall not be less than 15 feet above the ground line, but in no event shall the barrier be less than 8 feet in length. If the bottom of the barrier is more than 12 feet above the ground line, it shall be not less than 6 feet in length.

The provisions of this rule, 51.6-B, shall not apply to poles or structures on which all conductors have 5 feet or more horizontal clearance from the supporting structure, nor to poles or structures within fenced substation yards.

Note It is the intent of Rule 51.6-B to require such guarding as will prevent easy climbing of these poles by young persons who do not realize the danger of contact with live conductors supported thereon. It is not intended that such guarding will be required in sparsely settled districts, mountainous and desert areas, and similar locations.

51.6-B. Guarding of Latticed Metal Poles and Other Latticed Structures

Where the pole or structure is of latticed metal or of similar construction and supports supply conductors in excess of 750 volts and is located in urban districts, or in rural areas adjacent to schools, dwellings, permanents or seasonal camps, or in orchards, or near roads or trails which are frequently traveled, a barrier shall be so located on the pole or structure as to prevent easy climbing. If the bottom of the barrier is within 12 feet of the ground line, the top shall not be less than 15 feet above the ground line, but in no event shall the barrier be less than 8 feet in length. If the bottom of the barrier is more than 12 feet above the ground line, it shall be not less than 6 feet in length.

In lieu of a barrier located on the pole or structure a suitable barrier around the pole or structure may be used.

When a fence or wall is used as a suitable barrier around a pole or structure the construction shall be designed, installed and maintained in such manner as to reasonably deny access over, under or through the fencing or wall to all but authorized persons.

Material and Height:

(1) Fencing shall be of a fabric, such as galvanized steel, woven mesh or links (commonly known as chain–link or cyclone fencing) or other suitable metallic or nonmetallic material, extending from ground level to a minimum height of eight feet, or extending from ground level to a minimum height of seven feet with an extension of not less than 12 inches of barbed wire (three or more strands), razor wire or similar deterrent.

(2) Walls or other types of construction shall be of a material which will present an equivalent barrier to climbing or other unauthorized entry, extending from ground level to a minimum height of eight feet, or extending from ground level to a minimum height of seven feet with an extension of not less than 12 inches of barbed wire (three or more strands), razor wire or similar deterrent.

Gates shall be of a design and maintained in a manner compatible with the barriers specified in this rule.

A minimum radial distance of six feet shall be maintained between any portion of the fence or wall and the pole or structure.

The provisions of this rule, 51.6-B, shall not apply to poles or structures ~~on which all conductors have 5 feet or more horizontal clearance from the supporting structure, nor to poles or structures~~ within fenced substation yards.

Note It is the intent of Rule 51.6-B to require such guarding as will prevent easy climbing of these poles or structures by young persons who do not realize the danger of contact with live conductors supported thereon. It is not intended that such guarding will be required in sparsely settled districts, mountainous and desert areas, and similar locations.

51.6-B. Guarding of Latticed Metal Poles and Other Latticed Structures

Where the pole or structure is of latticed metal or of similar construction and supports supply conductors in excess of 750 volts and is located in urban districts, or in rural areas adjacent to schools, dwellings, permanents or seasonal camps, or in orchards, or near roads or trails which are frequently traveled, a barrier shall be so located on the pole or structure as to prevent easy climbing. If the bottom of the barrier is within 12 feet of the ground line, the top shall not be less than 15 feet above the ground line, but in no event shall the barrier be less than 8 feet in length. If the bottom of the barrier is more than 12 feet above the ground line, it shall be not less than 6 feet in length.

In lieu of a barrier located on the pole or structure a suitable barrier around the pole or structure may be used.

When a fence or wall is used as a suitable barrier around a pole or structure the construction shall be designed, installed and maintained in such manner as to reasonably deny access over, under or through the fencing or wall to all but authorized persons.

Material and Height:

The provisions of this rule, 51.6-B, shall not apply to poles or structures within fenced substation yards.